History Main / GenderBender

* ''WebComic{{Housepets}}'' includes two as a major plot point during the My Life As A Teenage Squirrel arc, in which a teenage couple are genderswapped and [[BalefulPolymorph speciesswapped]] out of the blue, and need to figure out why.

** Elliot is transformed into a girl by Tedd very early on in the comic, and uses an enchanted diamond to break the curse. The diamond ends up creating an OppositeSexClone of him named Ellen, and granting them both magic related to the original transformation. Ellen can fire beams that transform men into women (and eventually other beams) while Elliot can transform into a woman, which he doesn't actually want to do. Naturally, Elliot winds up with excess magic and has to spend as much time as possible as a girl to burn it off, lest he spontaneously transform at school. Since magic tries to fit your personality and it can't figure out why Elliot hates all of his spells, it eventually overcompensates and gives him the ability to turn into a FlyingBrick [[SuperGenderBender superheroine]]. ''EGS'' also gives us this wonderful line when Sarah and Susan are arguing over whether it's healthy or not when Elliot "[[AllMenArePerverts fails at perversion]]":

* [[http://en.wikipedia.org/wiki/Sequential_hermaphroditism Some fish]] will start out as male, but then change genders if their female mate dies. Others do the opposite. Clownfish are one of them (male changes to female.) This led to a lot of ''WesternAnimation/FindingNemo'' jokes.

** More recently, there's [[https://scp-wiki.wikidot.com/scp-6113 SCP-6113]], which comprises two anomalies: SCP-6113-1, a shapeshifting entity who visits closeted trans people in their lowest moments and leads them to SCP-6113-2, a magical lake. When a closeted trans individual looks at their reflection in the lake, the reflection gradually morphs from their current form to their desired form, with their physical body morphing in response. There's also SCP-6113-3 a.k.a. Chloe, a completely nonanomalous twelve-year-old trans girl who transitioned via SCP-6113 and who ended up as a ward of the Foundation due to an amnestics-involved screwup on the Foundation's part, something regarding which she is understandably ''pissed''. The researcher assigned to her case proposes that SCP-6113 be declassified and made known to the world for the good of the trans community; [[KickTheDog the O5s unanimously reject the proposal]].

** More recently, there's [[https://scp-wiki.wikidot.com/scp-6113 SCP-6113]], which comprises two anomalies: SCP-6113-1, a shapeshifting entity who visits closeted trans people in their lowest moments and leads them to SCP-6113-2, a magical lake. When a closeted trans individual looks at their reflection in the lake, the reflection gradually morphs from their current form to their desired form, with their physical body morphing in response. There's also SCP-6113-3 a.k.a. Chloe, a completely nonanomalous teenage trans girl who transitioned via SCP-6113 and who ended up as a ward of the Foundation due to an amnestics-involved screwup on the Foundation's part, something regarding which she is understandably ''pissed''. The researcher assigned to her case proposes that SCP-6113 be declassified and made known to the world for the good of the trans community; [[KickTheDog the O5s unanimously reject the proposal]].

* ''Webcomic/TwoKinds'' had a case of this with [[KingOfThieves Clovis]], who -- as punishment for stealing [[OurDragonsAreDifferent Lady Nora]]'s masquerade mask and abusing Zen and Natani -- was hit with a curse that turned him into a woman ''and'' [[TongueTied makes him unable to describe himself as anything but a woman]]. This causes some difficulties for his business as while he can bind his breasts, his female heat cycle kicks in during the summer and forces him into seclusion. [[KarmicTransformation It's also not helpful to him]] that he and [[NoWomansLand the culture he comes from]] are [[HeManWomanHater heavily misoginystic]].

** [[http://scp-wiki.wikidot.com/scp-113 SCP-113]], a piece of jasper that turns anything with sex chromosomes that touches it into the opposite gender. Although, the change is rather [[PainfulTransformation painful]], there is a 25% chance of the subject's [[GroinAttack genitals being obliterated]] and multiple exposures may cause [DATA EXPUNGED]. The Foundation has forbid its use as a method of sex change by transgender people, both inside and outside the foundation, as the risk for harm and death is too great.

[[folder:Fan Works]]
* In ''[[https://www.fanfiction.net/s/3872674/1/Account-Transfer Account Transfer]]'', [[Manga/RanmaOneHalf Ryouga]] has his original curse overwritten with one that causes him to turn into a girl as part of his wish to have Ranma's problems.
* ''Fanfic/AllBecauseOfUncleGary'': Uncle Gary's ritual permanently swaps the sex of whoever it's performed on if fewer than three people chant the incantation. This happens multiple times across the comic: Greta is first, followed by [[IdenticalStranger Julie Webber]], and finally [[spoiler:Abigail's entourage]].
* In ''[[http://www.fanfiction.net/s/8092152/1/Blessing-In-Disguise Blessing in Disguise]]'', a ''Franchise/SpiderMan'' fanfic, the radioactive spider who bites Peter Parker is female, which results in Peter not only gaining spider powers, but turning into a girl.
* One of the main characters of ''FanFic/BoyScoutsOneHalf'', Matthew Atanian, fell into the same cursed spring as Ranma and thus has the same curse. A later introduced character, Perfume, is a woman who fell into Spring of Drowned Boy, and thus has the inverse curse.
* ''Fanfic/ChildOfTheStorm'':
** The first book has Loki comfortably transform into a female form for a banquet, apparently largely on a whim, suggesting that while primarily identifying as male, Loki is at least mildly gender-fluid. He mentions past instances of transforming into a woman and one occasion, him transforming Thor into a woman for about twelve hours. Apparently Thor himself wasn't overly fazed by it and is implied to have taken the opportunity to experiment. Harry shuts him down before he can go any further on the grounds of TooMuchInformation.
** Harry doesn't seem overly bothered by the idea of doing it himself. In the sequel, he jokingly speculates about transforming Clark into a girl to fool the targeting on a magic spell, noting that a gender-switch ''is'' a big change. A mortified Clark shuts him down, and asks, essentially, "how would you like it?" Harry's dry response is that given what [[MostCommonSuperpower he knows about his cousins]], Jean and [[spoiler: Maddie]], and [[BuxomIsBetter has heard about]] his mother, he'd ask to change into a looser shirt first.
* There are several fan-written sequels to the "Claire Kent: Super-Sister" ''ComicBook/{{Superboy}}'' comic book story (see above). In these stories, Clark's transformation into Claire is ''not'' AllJustADream. The first story in the series can be read [[http://www.fictionmania.tv/stories/readtextstory.html?storyID=3355098155346635372 on this Website]].
* ''[[https://www.fanfiction.net/s/13317247/1/Danganronpa-Improper-Avatar Danganronpa: Improper Avatar]]'' has Hajime arrive in Hope's Peak like at the start of ''VisualNovel/Danganronpa2GoodbyeDespair'', only to find out that he's now a girl. The same process also happened to Nagito, Chiaki, Fuyuhiko, Peko, Mahiru, Mikan, and Kazuichi. [[spoiler:The discussion between Makoto, Kyoko, and Byakuya implies that this was the result of sabotage by Izuru Kamakura]].
* In ''[[https://www.fanfiction.net/s/13740751/1/Distorted-Reflection Distorted Reflection]]'', a battle with a D'arcmon damaged both Taichi's and Mimi's digivices. When they wake up the next morning, they find themselves in the opposite gender thanks to the damaged Digivices swapping data. The more they use their Digivices, the more they get repaired and in turn make it harder to return to their original genders.
** While their partners Agumon and Palmon remain the same, it's their ''Digivolutions'' that are affected. Agumon now digivoles into the female Sunflowmon, while Palmon digivoles into the male Growlmon.
* ''Fanfic/{{Domoverse}}'': Ron, who turns into a girl over the course of several hours after getting hit by a car and his mutant power manifesting.
** Estelle becomes a boy over the course of a year thanks to her mutation.
** And Ruth, who used to be [[spoiler:Isaac]]. This was done very much against her will.
* A rather odd example in the ''LightNovel/FateZero'' parody fic ''[[https://m.fanfiction.net/s/11896019/10/ Fate Crazy Knights]]'' which has Arturia able to summon her Knights of the Round (minus Lancelot, who is summoned as Kariya's servant) and Merlin. Initially, the knights Gareth and Galahad start out male. However, following the release of the Camelot chapter in ''VideoGame/FateGrandOrder'', all the Knights that debuted or were talked about in that singularity undergo character updates in chapter 10, leading Gareth to become a girl and Galahad to fuse with Mash (who is fused with his power in the game). While Merlin is able to turn Galahad back to normal, he can't do the same to Gareth because she doesn't mind being a girl, especially since she can become Gawain's favorite little sister instead of competing with Gaheris for the role of favorite little brother.
* In an interlude from ''Fanfic/FateSunnyOrder'', it's revealed that years ago, Ritsuka and Kana Tohsaka found Kaleido Ruby, who activated with blood from a cut on Ritsuka's hand and turned him into a magical girl. While Shirou was able to free his son from being a magical girl with Rule Breaker, it left Ritsuka still as a girl. The family had to wait for two weeks for Zelretch to turn their son back to normal, due to Ritsuka's girl body being made from aspects of multiple female counterparts.
* ''Fanfic/FatesCollide'': Arthur Pendragon became Arturia after too many class changes in Chaldea Academy. She later had her daughter Mordred [[spoiler:following an affair with Diarmuid Ua Duibhne]].
* ''Literature/TheLordOfTheRings'' fanfic ''[[https://www.fanfiction.net/s/4300110/1/A-Day-in-Time A Day in Time]]'' revolves around Merry waking up in the bodies of his ancestors, one of whom happens to be his very pregnant (and about to give birth) great-grandmother.
* ''Fanfic/DoingItRightThisTime'': When Kaworu decided to send himself and the other Children back in time to prevent the end of the world, he thought he might avert to play his role in the Dead Sea Scrolls prophecies if he changed sexes. So he turned female.
* In ''Fanfic/EmpathTheLuckiestSmurf'', both Tapper and Duncan [=McSmurf=] get transformed into Smurfettes by a wish made with a magic egg, and Hefty gets partially transformed into one by Ghinelle the girl genie, who gets even on behalf of her mistress Smurfette for Hefty trying to use SexualExtortion to keep his mouth shut about Smurfette having a genie.
* ExactlyWhatItSaysOnTheTin in ''[[https://www.fanfiction.net/s/11946465/1/Genderbent Genderbent]]'', where a dust mixture Jaune made is spilt onto him, Pyrrha, Ren, Nora, and Yang, turning them into the opposite gender. Later, an antidote made to turn Yang into a girl again is used on Weiss and Blake by Nora, turning both of them into boys.
* In ''Fanfic/GGKronosButIHaveForesight'', the main character, Evan Gamble, is turned into a girl named Eve upon being pulled into the ''Literature/PercyJacksonAndTheOlympians'' world. This is due to Artemis and Hera refusing to accept the help of a guy when a girl could do it just as well, and Aphrodite suggesting this compromise.
* ''Literature/HarryPotter'' works:
** Played with in ''[[http://www.fanfiction.net/s/5353683/1/The_Girl_Who_Loved The Girl Who Loved]]'', via a crossover with ''Manga/RanmaOneHalf''.
** ''Fanfic/InThisWorldAndTheNext'' has Ron turn into a girl as a consequence of a GroinAttack by a troll. It MakesJustAsMuchSenseInContext.
** [[http://www.fanfiction.net/s/8175132/1/Jamie_Evans_and_Fates_Fool Jamie Evans and Fate's Bitch]] is one of many super!Harry PeggySue fics, except when Harry comes back, he ends up in the wrong body.
** In ''Fanfic/BecomingFemale'', Snape makes Harry drink a potion which turns him into the perfect female form.
** ''[[https://www.fanfiction.net/s/10073299/1/Harry-Potter-And-The-Unexpected-Second-Life Harry Potter and the Unexpected Second Life]]'' is an alternate ending to ''[[Literature/HarryPotterAndTheDeathlyHallows Deathly Hallows]]'' where both Harry and Ron after the Battle of Hogwarts are victims of the Widowmaker poison, which only affects men, and only survive by taking Polyjuice Potion and turning into Hermione, and end up having to stay female for several months while they still have the potion in their systems.
** In ''[[https://www.fanfiction.net/s/232736/1/Ah-My-Witches-Though-Some-Previously-Could Ah! My Witches (Though Some Previously Could Not Be Considered Witches)]]'', Voldemort's newly invented immortally potion ends up turning himself, Draco and Lucius into [[Manga/AhMyGoddess Skuld, Urd and Mara]] respectively (Narcissa also takes the potion, but since she was already female, she just turns into Belldandy).
** In ''Fanfic/WaterAerobicsForTheAquaphobic'', during a poorly-planned Hogwarts field trip to [[Manga/RanmaOneHalf Jusenkyo]] that resulted in most of the students being cursed into various forms, Ron falls into Spring of the Drowned Violent Tomboy, which curses him to turn into Akane Tendo whenever he gets splashed with cold water. Theodore Nott is similarly transformed into a siren, a kind of female monster like a humanoid equivalent of a black widow, and there was also a grandfather of Sirius' who apparently fell into the Spring of the Drowned Double-Jointed Concubine.
** In ''[[https://www.fanfiction.net/s/2477343/1/Potion-99 Potion 99]]'' Harry takes a potion to permanently turn himself into a girl because the wizarding world is extremely bigoted about homosexuals and crossdressers.
** In ''[[https://www.fanfiction.net/s/3654234/1/Changes Changes]]'' Harry turns into a girl because Metamorphs experience a random major physical change when their powers first awaken. Due to the inadvisability of shifting anything more complicated than soft tissue, the change is permanent.
* ''Fanfic/TheInfiniteLoops'' will occasionally reboot a looper as the opposite gender. Twilight speculates it happens roughly two percent of the time. Some loopers do this more than others, such as [[VideoGame/MassEffect Commander Shepard]] and [[VideoGame/FiveNightsAtFreddys Bonnie the Bunny]].
* In ''Fanfic/InheritanceOfCardsAndDemons'', this is the power of the Switch card, as [[Manga/BlueExorcist Rin]] finds out when it turns him into a girl named Sora.
* In ''[[https://archiveofourown.org/works/23276197/chapters/56705365#workskin Interviewer]]'', a photographer named Cecilia gets akumatized with this power thanks to the frustration of Lila refusing to follow directions and the latter misgendering [[UsefulNotes/{{Transgender}} the former]]. The transformation are merely biological, so while Ladybug and Chat Noir are outright transformed, the already trans-girl Juleka becomes a cis-gender girl and Plagg (who is essentially genderless) is unchanged.
* ''Fanfic/IrreversibleDamage'': One of the potions reverses the physical sex of those who drink it. This ends up seeing considerable use in the story, and multiple characters -- including Greg himself -- undergo permanent sex changes.
* ''[[http://web.archive.org/web/20011225065823/http://www.fortunecity.com/lavendar/pimlico/131/hhalf.htm Joel 1/2]]'': An invention turns [[Series/MysteryScienceTheater3000 Joel]] into a woman. It should be noted that it was the author's idea for how the show could keep Joel himself on with Joel Hodgson (His actor) leaving (It was written before Mike officially became host).
* In the ''LightNovel/HaruhiSuzumiya'' fanfic ''[[https://www.fanfiction.net/s/5453599/3/Kyonko-s-New-Life Kyonko's New Life]]'', Haruhi causes two universes where the cast are [[GenderFlip opposite genders]] to merge, resulting in those in the know of TheMasquerade switching minds with their [[GenderFlip alternate selves]]. Our poor OrdinaryHighSchoolStudent and CosmicPlaything Kyon is now a girl with ACupAngst who still has to deal with the ever insane and domineering alternate universe Haruki.
* ''Fanfic/LeagueOfExtraordinaryGentlemenTempestRewrite'':
** As Futura, Orlando can now change gender at will ([[{{hermaphrodite}} and go in-between]])
** In Epilogue 2, [[Franchise/CthulhuMythos Nyarlathotep]] becomes [[LightNovel/NyarukoCrawlingWithLove Nyarko-san]]
* In ''[[https://archiveofourown.org/works/27518512/chapters/67295026 Let's Go! Akane-kun]]'', [[Manga/RanmaOneHalf Akane]] wakes up one morning to find that not only has she become a boy, everyone she knows thinks that she has always been male. In addition, she (or rather "he") is now engaged to Shampoo, and Ranma is engaged to Nabiki.
* In ''Fanfic/TheMerryGoRoundBrokeDown'', it's implied that Simon went through an incomplete, or even full, transformation. He still at minimum identifies as male, but it's also mentioned that he has the "wrong parts" as a weird side-effect of being turned into a CG character. He's also [[MisterSeahorse for some reason pregnant]].
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' works:
** ''Fanfic/BecomingPonies'' has, as its core concept, fans of the show waking up with the bodies of the show's characters. Given the infamous PeripheryDemographic, this was inevitable.
** [[ManipulativeBastard Tzeentch]] does this to [[TabletopGame/Warhammer40000 the God-Emperor]], mixed with {{Animorphism}}, at the end of their fight in ''Fanfic/TheGodEmpressOfPonykind''. The Emperor/Princess Celestia is pissed off at first, but gets used to it after a few years.
** A few non-canon stories in ''Fanfic/TheNonBronyverse'' involve this. One where TD gets turned into a pegasus mare by poison joke, and another where he becomes an alicorn princess. Both times he's rather horrified.
** ''Fanfic/FiveScoreDividedByFour'' features this as part of its main premise, with more than a few of the main cast being men-turned-mare and woman-turned-stallion in equal regards.
** ''Fanfic/JusticeLeagueOfEquestria''; in one side story to ''Mare of Steel'', Rainbow Dash gets turned into a colt due to exposure to Red Kryptonite. She really doesn't want to stay a colt, especially when [[ItsAllAboutMe Maxima]] tries to take her[=/=]him as a mate.
** ''[[Fanfic/LivingTheDreamKickass222urmom Living The Dream]]'' has Lance and his friends turned into mares (Excluding Vinetion) by Annabel the Draconequus. The reason why she did this is because she [[MassHypnosis hypnotized]] the entire male population of Manehattan into sex hungery beasts. The goal is for the bronies to survive an entire month without getting raped. And on top of that, All the Mares of Manehattan were turned into additional stallions to make it harder for Lance and Friends.
** In ''Fanfic/PoniesAfterPeople'', it's possible for someone to change sex when they become a pony.
** ''Fanfic/WhenAPonyCalls'' revolves around a brony accidentally switching bodies with Lyra, a female unicorn. Later, [[spoiler:his original body winds up being gender bent by Twilight, as a result of Lyra not being able to handle male hormones. Also, it turns out being stuck in a magical environment is slowly turning his now female body into a pony too.]]
** The ''WesternAnimation/TeenTitans'' crossover ''Fanfic/MyLittleTitan'' has the Titans wind up in the bodies of the Mane 6. Naturally, this means the male Titans have this happen to them with the exception of Beast Boy, who ends up in Spike's body. Cyborg is not happy about this last part.
** Navarone finds a pair of artifacts that change the gender of the user in ''FanFic/DiariesOfAMadman''. Occasionally they get used for disguise ([[PowerPerversionPotential as well as other things]]) -- at least until they break...
** ''Fanfic/ADiplomaticVisit'': While all changelings can change gender at will, chapter 25 explains that it is expected, when male changelings mature to become their hive's Queen, for their baseline biology to permanently change into a female's in the process. [[spoiler:Thorax remaining male partway through his transformation surprises them.]]
** The M-rated ''Suspenders-verse'' by Creator/{{Evilhumour}} mentions that Cadance can take a male form, Bolero, when she wants to; most prominently, she did so in order for she and her wife Gleaming Shield (this universe's Shining Armor) to conceive their daughter Flurry Heart.
* In ''[[https://www.fanfiction.net/s/11292442/1/ Nil Desperandum]]'', Lelouch's mind is sent back to the day of Britannian invasion of Japan [[spoiler:after his death in the Zero Requim]]. However, the body he ends up in is a female version of himself named Luluka.
* ''Fanfic/PokemonMysteryDungeonJournal'' did this for April Fool's Day 2013. None of the cast seemed to notice.
* In ''Fanfic/PoniesAfterPeople'', it is possible for someone to change gender when they become a pony. [[spoiler:This happened to the protagonist, Alex, who was once a man but is now a mare.]]
* ''Fanfic/QuirkMagicalGirlMascot'': Izuku Midoriya in this story has a quirk that turns him into a MagicalGirl MentorMascot, and can form bonds with others to make them into Magical Girls. Emphasis on [[ExactWords the word "girl"]], as any boy that Izuku Bonds with will become a girl. This has happened to Katsuki before they joined UA, and the same thing happened to [[spoiler:Shoto, Tenya, and All-Might]] later in the story.
* ''[[https://www.fanfiction.net/s/11431303/1/Red-White-and-Blue Red, White, and Blue]]'', a ''Series/BuffyTheVampireSlayer'' crossover with the MarvelUniverse, in which a Halloween costume sticks Xander with Mystique's powers and base form, and an inability to resume his own appearance... so he morphs into Willow, and poses as her cousin.
* Applies in a sense in the ''Series/StargateSG1''/''Anime/YuGiOh'' crossover "Fanfic/TheSerpentsVow"; Seto Kaiba is the Goa'uld Queen Set, also known as Nephthys, but despite being a Queen and hence capable of giving birth to other symbiotes, he has retained the same male host since ancient Egypt and considers it just as much his true form as the symbiote.
* ''WesternAnimation/TheSimpsons'' fanfic ''[[https://www.fanfiction.net/s/2306129/1/Lisa-%3C!--C2--%3EBD Lisa 1/2]]'' has this happen to both Bart and Lisa, after they fall into [[Manga/RanmaOneHalf the spring of drowned girl at Jusenkyou]]. Bart turns into a five-year-old Chinese girl named Ping, while Lisa, who went in after him, turns into Bart.
* In ''[[https://www.fanfiction.net/s/13982750/1/Switching-it-Up Switching it Up!]]'', thanks to Mousse switching everyone's curses (except his own) around, Ryouga gets Ranma's curse and is cursed to turn into a blonde-haired girl every time he gets splashed with cold water.
* In ''[[https://www.fanfiction.net/s/3522356/1/Take-the-Green-and-Go Take the Green and Go]]'' [[Manga/RanmaOneHalf Ranma]] is cursed with a female form, as in canon. Unlike canon, however, said female form is [[WesternAnimation/KimPossible Shego]], who had been sent back in time and drowned at Jusenkyo. Will Du later falls into Spring of Drowned Girl (the spring Ranma fell into is Spring of Drowned Demon Woman) and is cursed with the form of a blonde-haired girl.
* While uncommon, Film/{{Thor}} fanfics where Loki turns into a woman are not too hard to find. It's usually explained [[spoiler: by the fact that he's a frost giant]] and inspired by Norse myths of the gender-changing god (see the "Norse" entry in the "Mythology" tab). [[http://savu0211.deviantart.com/gallery/43010983?offset=24 (All) Father Loki]] is one such fic by Creator/{{Savu0211}}.
* A downplayed example features in the ''Fanfic/TokraApocalypse'' series when the Winchesters and Bobby Singer have to stop a demon-possessed scientist travelling to ''Destiny'' via the communication stones (nobody knows if a demon ''could'' travel along the stones, but obviously nobody wants to find out). During the confrontation, Bobby triggers the stone and arrives on ''Destiny'' in the body of Chloe Armstrong. However, aside from TJ musing that Chloe is "probably freaking out right now" and Bobby warning the boys not to talk about it once he gets back to his body, Bobby's visit to ''Destiny'' is focused instead on warning the crew how to protect themselves from potential demonic incursion, with no sign that he's really paying attention to his new body.
* ''[[https://lycelia.com/s/iu Trapped]]'', a virtual genderswap fic in the ''Anime/SwordArtOnline'' fandom, in which Kirito is stuck playing as his little sister's avatar in the death game for years.
* ''Literature/WhateleyUniverse'':
** ''Fanfic/{{Kitsune}}'': Conner Jeremy Fox, a 39+ year old man, [[FountainOfYouth age-regressed]] into a teenager girl.
** ''Fanfic/{{Maat}}'': 70+ year old Doctor Daniel Edward O'Neill transforms into Dani, a [[FountainOfYouth 20-something]] female priestess of Ma'at.
* The ''Franchise/MyHeroAcademia'' fanfic ''[[Fanfic/{{Hammerverse}} When all you have is a Hammer]]'' has this as Izuku's quirk. It's unusual in that Izuku gets the ability when they’re just four years old, and they identify as non-binary regardless of which form they’re in.
* In ''WesternAnimation/TheFairlyOddParents'' fanfic ''[[https://www.fanfiction.net/s/3661478/1/The-Wrath-of-Remy-Buxaplenty The Wrath of Remy Buxaplenty]]'', a malicious wish from Remy turns Timmy into his Timantha form. The FirstLawOfGenderBending also applies, as Remy wishes that Timmy would remain female permanently.
* When ''Anime/YuriOnIce'' was announced, a lot of Western fans thought it meant [[YuriGenre that kind of yuri]], and were surprised to see that it's actually about ''male'' figure skating. In Japanese, all [[OneSteveLimit three]] versions of "Yuri" are written differently... making [[YuriGenre Yuri]] [[Anime/YuriOnIce On Ice]] a convenient pun for doujinshi in which the male characters are genderbent, at least one of which does exist.
* Discussed in ''[[Fanfic/TheZeroContextSeries Zero Context: Taking Out the Trash]]''. The central protagonist had been born a male named 'Curtis', and had at some point been mutated into a cat-like humanoid with special powers. Curtis liked [[IJustWantToBeNormal being human]] more than he liked having his superpowers, and years later took advantage of a magical wish-granting crystal he'd found to regain his humanity and reset himself back to square one--even if it meant completely forsaking his masculinity to become a girl, turning into 'Callista'. A nurse in the epilogue had to make it clear to her patient that this didn't automatically mean Callista considered herself transgender, stating that she'd been called such by some who had heard the term before but didn't fully understand what it meant.
[[/folder]]

[[folder:Literature]]
* In ''Literature/AndEternity'', Orlene is temporarily transformed into a man to make a point.
* Several ''Literature/{{Animorphs}}'' characters do cross-gender human morphs. Marco morphs the female governor in one book, and presumably, Cassie and Rachel morph male when they acquire sailors for a mission on an aircraft carrier. Rachel's eagle, acquired between books 1 and 2, is male, as is the grizzly bear that she acquired in book 7. Marco acquires a girl wolf in book 3, while Jake, Marco and Ax all become a female skunk in book 9, and Rachel and Cassie (along with the four boys) acquire a male polar bear in book 25. Tobias acquires Taylor, a human female, in book 43. In ''[[{{Prequel}} The Hork-Bajir Chronicles]]'' Aldrea (who is female) morphs Alloran, the future host of the below-mentioned Visser Three.
** This is the plot point of one book, where Visser Three morphs into a female human and masquerades as Tobias' cousin Aria [[spoiler: in order to capture him after he is read a letter from his father, Prince Elfangor]]. Visser Three spends most of his time in this form during the book, just in case Tobias is morph-capable and spied on him in animal form; Tobias only figures out the trick because Visser Three is too good at acting like a human woman [[spoiler: and checks "her" hair in a mirror, which is automatic for most women but not necessarily for one who's been living in Africa for years, which was what "Aria" was supposed to be doing for most of Tobias' life]].
* In Judith Tarr's ''Avaryan Rising'' series, a young nobleman from one nation is turned female—by way of a dangerous magic ritual—so that s/he can marry the prince of another nation for diplomatic reasons. [[AttractiveBentGender Predictably, she's smoking hot in female form]].
* Creator/TanithLee also explores gender-switching in her ''Literature/BitingTheSun'' series, where changing bodies and genders is almost as easy as changing clothes. Officially you're only supposed to change once every thirty days, but nobody pays attention to that.
* ''Literature/ChakonaSpace'': Skunktaurs, which were a competing project to the [[{{Hermaphrodite}} chakats']] development, can switch between male and female. They're born male then change to female for the first time at puberty and can trigger the change at will from then on.
* The short story "Changes" has Gender Bending as its premise, as a cancer cure called Reboot that works by altering the patients DNA has the side-effect of transforming the patient into a fully functional and fertile member of the opposite gender. The story takes place over several decades, analyzing how society would react to the effects introduced by such a drug. The middle eastern response is especially horrific, in contrast to the ''Sex Gates'' example above.
* In Creator/CordwainerSmith's Instrumentality short story, "The Crime and the Glory of Commander Suzdal," the Arachosians [[spoiler:made their women into man-like things (klopts) on purpose]]. It was a FateWorseThanDeath.
* In [[Creator/IainBanks Iain M. Banks]]'s [[Literature/TheCulture Culture]] novels, citizens of the Culture are able to change their gender at will. The process is slow, taking several months, but is done entirely using consciously-released hormone, not requiring any external assistance. The change is so complete that they begin to produce the appropriate sex cells, and a newly-female person can get pregnant and give birth. Most people in the Culture will spend a year or two as the opposite sex at some point in their lives, just to see what it's like. A popular expression of love is for a couple to conceive a child, then change gender and conceive another, so both partners are pregnant with the other's child at the same time (they are also able to temporarily arrest the development of the embryo/fetus, so that they can time it so they come to term together -- if the embryo is only just conceived, they can even keep it alive while they become male).
* In the novel ''Cycler'' by Lauren [=McLaughlin=], the main character Jill changes into a boy, Jack, before (or during) her period.
* The protagonist of ''Literature/DeathsMaster'' by Creator/TanithLee is a WonderChild who can switch at will between male and female.
* ''Literature/DemonSwordMaiden'' starts the story with a very, very effeminate boy getting confessed to by his older, taller, and very busty crush. He reciprocates, and then the plane they're flying in crashes, killing them both. The next moment, he wakes up in her body, while her soul is stuck in a magic mirror. The prevailing conflict in the story is him trying to find a way to get her out and give her her body back, becoming a powerful demon-slaying samurai in the process...
* In Gael Baudino's ''Dragon'' trilogy, an enemy wizard does this to an entire troop of soldiers from an extremely sexist country. The transformation is permanent, and the characters' adaptation to their new state is dealt with at length; the new women's situations are dealt with surprising sensitivity, given that at the time Baudino was a Dianic Wiccan.
* In the ''Franchise/{{Dune}}'' series, the Tleilaxu Face Dancers were shape-shifters with the ability to change gender.
* The middle part of ''Literature/TheElminsterSeries: The Making of a Mage'' is basically "The Making of a Priestess". When Elminster agreed to serve the goddess of magic, he finds himself teleported without any warning to an unknown location and turned into a lass-"to see the world through the eyes of a woman" ([[spoiler:and to hide him from [[TheMagocracy Magelords]] out for his blood]]), having ''nothing'' on her save half of a broken ancestral sword, and no magic abilities save innate magic vision. Later he learned the spell himself. In the next book, Mystra pushes a silent sex-inverting spell into his mind, to give him a way to circumvent controls built into his body. Which he used while embraced... er... [[KindRestraints restrained]] by his current LoveInterest, no less. "Well met. Call me Elmara, please!"
* Ian Covey, the doppelganger in ''{{Literature/Everyman}}'' takes the form of two different women.
* ''Literature/TheFourProfoundWeaves'': The first of the titular magical arts weaves [[InsubstantialIngredients the wind]] into a "carpet of change", which can transform a person's body to match their inner self. UsefulNotes/{{Transgender}} people in the desert nomads commonly use these when they transition: one of the protagonists did as a young child, while the other kept his carpet for forty years and finally used it in his sixties.
* A rather awkward version happens in ''Literature/GalaxyOfFear: The Brain Spiders''. Jabba the Hutt has a weird gambit going where he removes the brains of major criminals, turns their bodies in for the reward money, and installs their brains into the bodies of hapless people in his fortress - ''their'' brains end up in [[BrainInAJar spider droids]], which sucks. A particularly large and brutish killer's intended body is set free, so he gets put into Tash Arranda, a not-yet-fourteen-year-old girl. At first he doesn't mind much, but soon he starts complaining to Jabba about it. Jabba is just amused. The narration, once the point of view character figures it out, calls him "he".
* In ''Literature/GarrettPI'''s ''Dread Brass Shadows'', Garrett encounters a couple of characters who magically disguise themselves as other people, sometimes of the opposite sex. Finding the corpse of one of them, he's squicked out to discover that the dead man is reverting from his assumed female form to his natural one only gradually, from top to bottom.
* In the novel ''Girl'' by Creator/DavidThomas, Bradley Barker (the main character) goes into hospital to have his wisdom teeth removed and is given a sex-change operation by mistake. [[FirstLawOfGenderBending The change is permanent]] and the main character [[SecondLawOfGenderBending does get used to being a woman]] [[ThirdLawOfGenderBending through typical dress and actions]], but the novel is surprisingly respectful of the transgender topic despite the comedic plot set-up.
* An important point in Creator/CharlesStross' ''Literature/{{Glasshouse}}'' is that the characters come from a society where Gender Benders are ridiculously easy. It's implied that most people tend to settle on a particular gender for the sake of convenience; the protagonist is usually male, but doesn't even remember what his original body's gender was.
* Polyjuice Potion in the ''Literature/HarryPotter'' series has been stated to do this, although we never actually learn how far the gender bending goes. Some examples in the series:
** In ''[[Literature/HarryPotterAndTheGobletOfFire Goblet of Fire]]'', Barty Crouch, Jr. escaped Azkaban by swapping identities with his mother via Polyjuice Potion.
** In ''[[Literature/HarryPotterAndTheHalfBloodPrince Half-Blood Prince]]'', Crabbe and Goyle take the Polyjuice Potion many times to pose as first year girls, in order to allow Malfoy to repair the Vanishing Cabinet.
** In ''[[Literature/HarryPotterAndTheDeathlyHallows Deathly Hallows]]'', in order to get Harry out of Privet Drive, five of his friends ([[MyFriendsAndZoidberg and Mundungus Fletcher]]) disguise themselves as Harry using Polyjuice potion. Two of the decoy Harrys are Hermione and Fleur. Amusingly, Fleur isn't too happy about being Harry; after the transformation is complete, she tells Bill not to look at her because she's hideous.
* In the 1952 French short story ''Héloïse'' by Marcel Aymé, the thirty-five-year old Martin turns into the title female character each evening, causing her to clash with his wife. Things get complicated when Martin falls in love with Héloïse, and when Héloïse gets out and sleeps with other men. At the end of the story, Martin's wife tells him that Héloïse is pregnant; and that Martin[=/=]Héloïse will give birth to a boy who will soon turn into a girl.
* K. Lynn's ''His Womanly Ways'' employs the body-horror route with a gradual genderswap for the main character. Womanizer gets cursed to know what it's like for a woman, and he slowly starts turning into one. The change is [[FirstLawOfGenderBending found to be permanent]], but the novel subverts the typical genderswap tropes by utilizing an underlying transgender theme.
* In the Creator/MercedesLackey and Creator/PiersAnthony novel, ''If I Pay Thee Not In Gold'', there be demons. They look ordinary, if beautiful, and with awesome eyes, but normal for normals where they come from. What distinguishes them is immortality... and gender bending when they have sex. Imagine losing your virginity and learning that. How can demons die? By being killed, or if a partner is unfaithful.
* In ''Literature/ImInLoveWithTheVillainess'', [[spoiler:Prince Yuu]] suffers from this after he was accidentally infected with a gender-bending disease when he was young. Complicating matters is that he wants to return to his birth gender, but his mother doesn't want him to endanger his chances at the throne. [[spoiler:He eventually cures himself of the disease, and happily lives on as a female.]]
* Princess Ozma of L. Frank Baum's ''Literature/LandOfOz'' series was magically changed into a boy as a baby, and grew up this way [[spoiler:(under the name "Tip")]] until the spell was discovered and she was changed back. The fact that their personalities are total opposites has led to at least ''a century'' of many fans trying to explain this away via or {{Retcon}}. {{Lampshade}}d when the Gump mentions he thought Ozma was nicer when she was a boy. The Gump also mentions that Ozma didn't much like him talking since she changed her name.
* ''Literature/LordOfLight'':
** The original Brahma was a lesbian whose birth name was Madaleine; she [[TransEqualsGay chose to get transferred into a supremely masculine body]][[note]]it is likely that Zelazny didn't see the UnfortunateImplications in this[[/note]] time and again, but still had a nagging fear of not being man enough to attract women.
** When [[spoiler: Kali]] is asked to become the new Brahma, she agrees, even though it means [[spoiler: breaking off her marriage to Yama in the middle of their honeymoon]]. She is later reincarnated as a female again, under the name [[spoiler:Murga, who Yama introduces to Kubera as his daughter]].
* ''Literature/TheMachineriesOfEmpire'': The [[GalacticSuperpower Hexarchate]] has a NonHeteronormativeSociety and the {{Magitek}} to make any medical transition a trivial affair. When Cheris first wakes up after becoming a WillingChanneler to [[VirtualGhost Jedao]], she sees [[MirrorReveal his reflection in place of hers]] and initially assumes that her superiors have changed her sex for some reason.
* This is the ending twist of the Creator/CliveBarker short story "Literature/TheMadonna" from ''The Books of Blood''. All men who enter The Madonna's lair become women. Though it can be terrifying for some people, he/she ended up better than [[Film/TheMidnightMeatTrain most]] [[Film/{{Candyman}} other characters]].
* ''Literature/MagicalGirlPolicy'': Rob is revealed to be Spirit Guard Serenity, and will be permanently transformed into a girl upon transforming the first time.
* ''Literature/MagnusChaseAndTheGodsOfAsgard'', Alex Fierro might fit both versions of this trope. She's gender fluid, and is also implied to be a SexShifter whenever her identity changes.
* One of the titular ''Literature/MidnightsChildren'' can do this by immersing themselves in water.
* In ''Literature/MufarosBeautifulDaughters'', [[spoiler: The king poses as an old woman as part of the SecretTestOfCharacter he gives Manyara and Nyasha]].
* For the people of Creator/GregEgan's novella ''Literature/{{Oceanic}}'', who otherwise seem mostly human, coïtus ends with the penis transferring itself to the other partner. The protagonist has one sibling; each of their parents is mother to one and father to the other. (The people's origin legend suggests that their ancestors had been disembodied software for a long time before creating their bodies.)
* The whole idea of a man being turned into his own fantasy woman is [[DeconstructedTrope deconstructed]] by Angela Carter in ''Literature/ThePassionOfNewEve''.
* In ''Literature/PeterPanInScarlet'', the former Lost Boys must wear their children's clothing in order to become children again and return to Neverland. Unfortunately for Tootles, he has no sons, so must wear his daughter's ballet dress, and turns into a girl.
* [[https://lycelia.com/s/egj "PMS Zombies"]] shows the troubles of a teenage boy unwillingly turning into a beautiful girl right as all the women in town turn into man-hungry cannibal zombies.
* In ''Literature/PrincessHolyAura'', a 35-year-old man's choice to become a 14-year-old girl is one of the key points of the story.
* ''Literature/TheQueenOfIeflaria'': A common magic in the setting, and why no one is ''too'' worried about the heir of two women. The problem is that you have to want the Change for it to stick; actual transsexuals are easily able to Change permanently, but there is some doubt whether either Esofi or Adale will be able to maintain it long enough to produce an heir.
* In the ''Literature/{{Safehold}}'' series by David Weber, Nimue Alban (or, specifically, the robot with Nimue Alban's personality) crafts the persona of Merlin Athrawes. Her robotic body has the [[PowerPerversionPotential capability to shift genders]], which she uses to complete the image.
* The premise of the ''Literature/SexGates'' trilogy by Darrell Bain & Jeanine Berry: Portals appear at random all over the world. If they don't make you vanish when you pass through them, they cause you to emerge as a [[AttractiveBentGender flawlessly healthy 18-year-old... of the opposite gender]]. HilarityEnsues. Well, not so much hilarity as ''extreme'' societal upheaval. The Middle Eastern response -- namely, chucking various imams and abusive husbands through, was ''highly'' [[TakeThat amusing.]] Other aspects, like the TransEqualsGay implications of homosexuals lining up for their Gender Bender or women eager for the chance to be the "superior" sex, may be less amusing.
* ''Literature/TheSisterVerseAndTheTalonsOfRuin'' has the ascendants, who assumed the forms of women in the war of the second act to facilitate infighting within humanity, and eventually birth the [[BloodKnight Sisters of Ruin]].
* In ''Literature/ASongOfIceAndFire'' dragons are described by Maester Aemon as "neither male nor female, [...] but now one and now the other, as changeable as flame." His knowledge of dragons being able change sex at will comes from a rare book from scholar Septon Barth, who also served as Hand to Jaehaerys I. Interestingly during the books several dragons are referred to by a specific gender, for instance Balerion is referred to as male by Daenerys and Tyrion refers to Syrax as a "she-dragon", suggesting some dragons may remain a single fixed gender.
* In ''Literature/{{Sphere}}'', the protagonist tests out his reality-warping abilities on some nearby mummified corpses, changing men to women and women to men. That's right: gender-bending ''corpses''.
* In ''Literature/{{Stardust}}'', Bernard the goat herder is first turned into a goat by the Big Bad, and later into a woman to pose as her daughter.
* Alison Tyler goes the typical bodyswap route in ''Tiffany Twisted''. A woman and her boyfriend switch bodies and explore each other in intimate and personal ways. Of course, the male-turned-female character uses the opportunity to [[ManIFeelLikeAWoman feel himself up]]. The point of the swap in this case is to teach the protagonists [[AnAesop a lesson]] -- namely, to be more respectful and considerate of each other.
* ''Literature/TogetherlyLong'': This happens to Chiisai, who starts out as a boy but transforms into a girl when he[=/=]she [[TakingTheBullet dives in front of a ray gun blast]] that was intended to [[TakenForGranite turn his[=/=]her best friend Oukii into a statue.]] The reason Chiisai becomes a girl and not a statue is because he's[=/=]she's not the same species that Oukii is, and so the RayGun had a different effect on him[=/=]her.
* In the ''Literature/VampireTheMasquerade'' series, Sasch Vykos was once Myca Vykos, but changed genders via Vicissitude.
* Creator/LoisMcMasterBujold's ''Literature/VorkosiganSaga'':
** ''Literature/ACivilCampaign'' has, as a significant character, Lord Dono Vorrutyer... formerly ''Lady Donna'' Vorrutyer.
** Not to mention Bel Thorne the hermaphrodite, who, while technically both male and female, is quite fond of switching its perceived gender around just to mess with people's heads.
* In ''Literature/WarriorCats'', the others often can't keep up with the massive cast, especially characters who were created just to flesh out the allegiances, so this has happened to several characters (most notably Sedgewhisker and Rowanclaw).
* ''Literature/WhateleyUniverse'': This is a major point of many of the tales, due to them taking place in an LGBI dormitory at the eponymous SuperheroSchool.
** Several of the main characters are gender bent by their "Exemplar" mutant power, which involves InvoluntaryShapeshifting to match their "BIT" (Body Image Template). A BIT is that person's mental image of a perfect body, which is occasionally the "wrong" gender -- although Exemplar mutations tend to have a side effect of a certain level of acceptance, and many were UsefulNotes/{{transgender}} to begin with (i.e., the changes fit what they wanted to be all along). Note that a BIT can lead to an intersexed state as well -- this is -the case with both Phase and Circuit Breaker - or cause a non-human appearance. It should also be noted that [[FirstLawOfGenderBending the First Law]] is in full effect in the Whateley 'verse -- as a rule, it is not possible to undo or really change an Exemplar mutation.
** Other than the Exemplar mutants, one main character is changed to a girl by being bonded with a powerful female elf spirit, another due to a poorly worded prank by her little brother, and yet another hasn't changed at all but is actually a UsefulNotes/{{transgender}} girl trying to find a way to transition. Oh, and then there's Hank, who's gender bending the other way.
** And that's not even counting the ways it has happened ''separate'' from mutations. These include finding and bonding with a magic sword (Bladedancer); deliberate magic (Scapegrace); ''botched'' magic (the Crystal Wavers); getting affected by a booby-trapped book meant to protect her from a familial curse (Josie Gilman); conning a horny MadScientist into doing it (Delta Spike); a MadScientist [[HoistbyTheirOwnPetard accidentally dosing himself]] with his own 'perfect [[OurElvesAreDifferent Drow]] girlfriend' transformation serum (Jobe Wilkins); [[TransferableMemory memory transfer]] of a copy of a male MadScientist's self into a female Drow [[CloningBlues clone body]] (Belphoebe); getting dosed with a sex-slave serum (Daphne Han, who then turned the tables on her captor); bonding with powerful spirit beings (several of the Loose Cannons); making a [[BeCarefulWhatYouWishFor poorly-worded wish]] with a PowerGem (Hat Trick); being an unwilling subject of magical experiments (Dragonsfyre); getting affected by nanotech (Tyler Collier); getting affected by nanotech ''and'' a magic-based computer game (Whisper); and getting zapped by an angry MadScientist girlfriend (both Reach ''and'' Lapin).
** Things go completely off the rails in the story "Smoke and Mirrors", when someone finds a [[MadScience devise]] called a 'Mimicry Inducer' (which imposes someone else's appearance on a person), and decides to use it as an offensive weapon. Fortunately, the FirstLawOfGenderBending doesn't apply for once, though at least one permanent male-to-female change does occur (to someone who happened to be UsefulNotes/{{Transgender}} to begin with, so no one was complaining).
** It should be added that the rate at which the transformations take place can vary greatly, from Tennyo's near-instantaneous self-immolation/transformation, to the half-decade long gradual self-adjustment that Mega-Girl is going through. In between that are Crimson Comet (three days), Phase (about a week), Shadowdancer (two months of agonizing illness), Fey (six months of slow changes followed by a sudden, unpleasant burst of alterations after her first major use of her powers), Chaka (about a year, and requiring surgical intervention to correct her hips half-way through), and Beltane (a couple of years of self-modification). And that's not counting [[SexShifter shapeshifters]] like Jimmy T., who can voluntarily change form in a short period, or those who transform involuntarily more or less instantaneously at varying times, such as Reach, Chimera, Fling, or Heyoka.
* ''Literature/XanaduStoryverse'': A number of transformations cause people to change genders and/or physical sexes, such as a frat guy who wore an Ariel costume on a dare and is turned into a mermaid, a man turned into a female FoxFolk, a woman who is turned into a Hulk Hogan clone, and two women who were part of a group cosplaying as marines from ''Series/HogansHeroes''. The main character in "Refamiliarization" also undergoes this as his full transformation slowly sets in, but the fact that he's turning into a female dragon specifically means that the sex change is largely a secondary issue for her.
* ''Literature/{{Xanth}}'':
** In ''Crewel Lye'', Jordan has a bag full of counter-spells for various magic traps he's meant to encounter on his adventure, but they were tampered with and have the wrong effect. When he tries using one of the spells, he ends up switching bodies with his companion Threnody (although this is a stroke of luck -- Jordan notes the spell was probably supposed to switch him with his ''horse'' instead). The two grow much closer while figuring out how to use their new bodies and [[OnePersonOnePower Talents]] to escape. They end up triggering another trap later on that conveniently causes them to switch back, which is what the initial swap was supposed to be a counter for.
** At one point in ''Pet Peeve'', Goody and Hannah wander into an area called No Man's Land, which causes any men who enter it to permanently become women. After some teasing from Hannah and Peeve, they travel through No Man's Land for a way to reverse it. In the center is a jewel that when flipped over causes the area to become No ''Woman's'' Land, which has the opposite effect. The inhabitants of No(Wo)man's Land apparently don't notice the change, and it doesn't seem to have any effect on the Pet Peeve either. After turning back into a man, Goody leaves so Hannah can flip it again to get herself back to normal.
%%Some of this may need to be corrected. I'm going off memory from years ago and I don't have the books on-hand.
[[/folder]]

[[folder:Films -- Live-Action]]
* ''Film/TheAssignment2016'': Frank gets a full sex reassignment via {{magic plastic surgery}}, and the result is him going from physically male to looking like Creator/MichelleRodriguez (who played him in both cases).
* ''Film/TheBrothersGrimm'': [[TransformationHorror A long and horrifying scene where Sasha's face gets stolen by a mud creature, chasing her until it catches up to her and merges with her turning her into a Gingerbread Man]], ironically being dressed as a boy for most of the movie and ends up being transformed into one, nearly at the end she gets transformed back into a girl when the Queen is about to sacrifice her for the ritual.
* The hypochondriac Bernard Cutting in ''Film/CarryOnMatron'' has his body examined by a fellow doctor in the hospital, who points out that his pelvis is rather feminine-shaped, which makes him think that he is probably gender-bending. Unsurprisingly, this trope is subverted, but he soon relaxes after visiting the cuckoolander Dr Goode, who's just as uncertain about the situation as Bernard is.
* The Australian feature ''Film/DatingTheEnemy'' takes the classic set up of a bickering couple who get an opportunity (in a FreakyFridayFlip) to "see the world through the other's eyes".
* There are several films which take the story of ''Literature/DrJekyllAndMrHyde'' and, while keeping Jekyll male have Hyde be a beautiful but evil woman:
** The soft porn ''The Adult Version Of Jekyll & Hide''.
** [[Film/HammerHorror Hammer's]] ''Film/DoctorJekyllAndSisterHyde'', exploited the startling similarity in appearance of leads Ralph Bates and Martine Beswick.
** PlayedForLaughs in ''Film/DrJekyllAndMsHyde'', starring Tim Daly of ''Series/{{Wings}}''.
** The obscure spoof ''Film/DrHeckylAndMrHype'' puts the doctor through a number of transformations, including one where he becomes a woman.
* In ''Film/FrankensteinCreatedWoman'', Doctor Frankenstein successfully transfers the soul of a man into the just-drowned body of a deformed young woman. Frankenstein fixes up the woman's body, making her beautiful, but as with most of the Doctor's experiments, things start going downhill from there.
* ''Film/{{Freaky}}'': For the Butcher and Millie via FreakyFridayFlip. He's an adult man, she's a teenage girl, and both find the change discomforting (he adjusts faster).
* In ''Film/TheGamersDorknessRising'', Luster is constantly switching between female and male due to her player forgetting and being reminded of her true gender. It's [[LampshadeHanging lampshaded]] several times, both in-character and out-of-character.
* Another rare female to male version, in the 2015 Swedish film ''Girls Lost'' (''Pojkarna'') - based on a Young Adult novel - three teen girls who suffer from misogynistic bullying at school find a mysterious seed that grows into a flower that can turn them into boys if they drink its nectar, though it wears off by morning. One of the teens is heavily hinted to be a trans man and finds the situation liberating and becomes addicted to the nectar, whilst the other two are intrigued and find some more confidence as boys admit they'd rather stay as girls.
* In ''Film/GoodbyeCharlie'', Harry Madden's character is shot by a jealous husband and falls out a porthole. He's lost at sea only to find himself returned as an attractive blonde woman portrayed by Debbie Reynolds.
* In ''Film/{{Gozu}}'', a dead {{Yakuza}} brother returns as a young attractive woman with no explanation given why.
* ''Film/Gremlins2TheNewBatch'': One of the Gremlins ingests a jar of AppliedPhlebotinum in the genetics lab that immediately turns it into a Girl Gremlin, who then proceeds to become an AbhorrentAdmirer to the jerkass head of security. This is one of the more peculiar examples by the standards of the trope, since the Gremlins are an asexual species that reproduces more like a fungus.
* The Hong Kong action comedy ''Film/HolyWeapon'' features this towards the end. In the movie, [[OldMaster Ghost Doctor]] creates "Feminine Wine" for an intersexed woman, warning that if a man drinks even just a drop, he'd become a woman. They then have the male IdiotHero Ng Tung look after the brew without telling him what it is or what it does. Ng Tung unwittingly drinks the brew, thinking it's a nutritious soup. Then [[ItMakesSenseInContext his penis tells him]] that from now on, whenever his body gets wet, he'll turn into a woman. He'll become a man again when he dries his body. [[spoiler:This becomes useful during the final battle, when the BigBad's {{Mooks}} throw Ng Tung into the river as a sacrifice, only for him to emerge fully female, complete with bouncing chest and GirlishPigtails. Thus, he/she becomes the Seven Virgins' EleventhHourRanger (since one of them is trapped in a net throughout the battle).]]
* ''Film/TheHotChick'' has a lowlife thief (played by Rob Schneider) accidentally swapping bodies with a snotty teenage girl.
* ''Film/ItsABoyGirlThing'' gives bickering teenagers Nell and Woody a FreakyFridayFlip via a {{Mayincatec}} God.
* ''Franchise/{{Jumanji}}'':
** The movie ''Film/JumanjiWelcomeToTheJungle'' is about a group of teenagers who get sucked into a video game and are stuck in the bodies of the avatars they chose. The group's wannabe AlphaBitch, Bethany, ends up selecting [[GenderBlenderName Professor Shelly Oberon]], whom the game describes as a "curvy genius" (which she assumes means "hot scientist"). To her surprise and horror, Shelly Oberon turns out to be an overweight middle-aged man (played by ''Creator/JackBlack''). Hilarity ensues.
** ''Film/JumanjiTheNextLevel'', has several examples:
*** Spencer re-enters the game, hoping to regain the confidence he had as Dr. Smolder Bravestone. However, the game sticks him with the avatar of female [[ClassyCatBurglar thief]] Ming Fleetfoot. To add insult to injury, Fleetfoot has essentially the same strengths and weakness as his real world self: high intelligence and cleverness, but no physical strength or fighting skills -- and a pollen allergy to boot.
*** Later, Spencer's grandfather, Eddie (Creator/DannyDeVito), ends up in Fleetfoot's body; he's too amazed by the fact that he has a full head of hair (being bald in the real world, and having spent much of the film as the extremely strong, but bald, Bravestone) to be concerned about being female.
*** "Fridge" initially gets stuck as Professor Oberon (which, as the group's resident jock, he is ''not'' happy about). However, an electric shock causes him to briefly swap avatars with his teammate, Martha, putting her in Oberon's body and him in the body of [[ActionGirl Ruby Roundhouse]] (which he finds ''far'' preferable). After he admits that the breasts are a nice bonus, Martha snaps at him to keep his hands off her body; Fridge replies that [[ManIFeelLikeAWoman feeling himself up]] was the ''first'' thing he did.
*** Bethany, who enters the game long after the others, ends up with the only remaining avatar: Cyclone, a [[ForcedTransformation horse]]. After that, she's only too happy to be swapped into Professor Oberon's body (again).
* In ''Film/JurassicPark'', the all-female dinosaur population gradually has some of them turn male. This is due to the fragmented dino DNA that created them being "repaired" with the DNA of a frog species that can change gender.
* In the Italian comedy ''Film/LeComiche2'' the two main characters cause physical and psychological damage to many people throughout the multiple episodes composing the movie. The main recurring victim ({{chew toy}}) is a male individual that undergoes an undesired breast augmentation at the end of the first episode. Later he has an accident of {{comedic underwear exposure}}, revealing he is wearing a bra supporting large breasts. As the movie progresses, he ends up in a hospital and he is given a sexual reassignment surgery. Finally, completely turned into a woman, she is an odalisque in a harem, seemingly accepting her new role and gender ({{Second Law of Gender Bending}}).
* In ''Film/{{Orlando}}'', the title character wakes up as a woman halfway through the movie and is completely unfazed by the change. Which is more than you can say for everyone around her.
* In the first and second ''Film/{{Phantasm}}'' films, the Tall Man is able to transform himself into a woman in order to lure people in to be killed.
* ''Film/{{RIPD}}'': To everyone living, Roy looks like a ([[MsFanservice beautiful]]) young woman. [[spoiler: Later we see Proctor has a male avatar, and Nick's second avatar is a Girl Scout.]]
** In the {{Prequel}} film (''R.I.P.D 2: Rise of the Damned''), Roy's first avatar is a young black woman.
* In ''Film/{{Sam}}'', Brock Harris is transformed into Natalie Knepp thanks to a mysterious drink he got at TheLittleShopThatWasntThereYesterday.
* In the movie ''Film/ScoobyDoo'', the gang's souls switch bodies at one point, causing Fred to end up in Daphne's body for a while.
* In ''Film/ScoobyDooMonstersUnleashed'', Shaggy drinks an unknown potion and transforms (from the neck down) into a woman, for a little while. This turns out to be a ChekhovsGun as [[spoiler: the villain was using it to disguise his identity]].
* The plot of ''Film/TheSexTrip'' is that Eddie is turned into a woman through a witch's curse, and he spends a bulk of the movie as "Edna".
* In the sex comedy ''Film/SexualChemistry'', a chemist's attempt to create a sex-enhancing drug backfires, turning him into a woman. He keeps changing back and forth over the course of the movie. HilarityEnsues.
* ''Film/SomethingSpecial'' (a.k.a. ''Willy/Milly'') is a rare female-to-male example, where a tomboyish teenager wakes up to find herself magically transformed into a male after making a wish during a solar eclipse.
* In ''Film/{{Splice}}'', Ginger, one of the two [[LEGOGenetics transgenic creatures]] created by Clive and Elsa, turns from female to male due to hormonal changes, and fights Fred (the other transgenic creature, who was male from the start) during a press conference that unleashes [[BloodSplatteredInnocents a shower of blood]] on the front row. [[spoiler:This turns out to be {{foreshadowing}} for similar changes in [[CuteMonsterGirl Dren]].]]
* The 2018 Belgian short film ''Switch'' features an initially female protagonist who discovers that having an orgasm causes her to change sex. The film can be seen as a commentary on trans people's experiences. Can be viewed [[https://vimeo.com/276946232 here.]]
* The 1940 Hal Roach feature ''Film/{{Turnabout}}'' concerns a bickering husband and wife, each of whom wishes they could have the "easy" life of the other gender. Their wish is subsequently granted by an enchanted Indian sculpture sitting on their mantelpiece. By the end of the film things are seemingly back to normal... until the Indian god confesses that he screwed up and informs the husband that [[MisterSeahorse he's now pregnant]]. The film was an adaptation of Thorne Smith's 1931 novel, which was later adapted as a short-lived TV series in 1978.
* ''Film/{{Zerophilia}}'', directed by Martin Curland, concerns a young man named Luke who obtains the rare Z chromosome after a sexual encounter with a mysterious woman which turns him into a zerophiliac, a person whose sex changes with the act of sex (either by your lonesome or with another person). Sex with another zerophile induces [[ShapeshifterModeLock mode locking]].
[[/folder]]

!!Examples:

[[folder:Western Animation]]
* The last episode of ''WesternAnimation/AdventuresOfSonicTheHedgehog'' has Sonic and Tails transported into various fairy tales. In the first one they visit, they're Hansel and Nettle (Gretel). Sonic is Hansel... and Tails is Nettle. Disturbingly, four-year-old Tails gets boobs as a girl. He even lifts up his dress to verify it: "I'm a girl!"
* ''WesternAnimation/TheAmazingWorldOfGumball'' episode "The Job" involved Richard's reality-warping shockwaves hitting the other Wattersons and Larry, who switch genders at one point.
* In the ''WesternAnimation/AmericanDad'' episode "Stan Goes on the Pill", Stan turns into a woman after taking an experimental pill that was supposed to make it easier for him to listen to women. The female doctor giving him the pill told him that he was only supposed to take half, and naturally, he didn't listen.
* ''WesternAnimation/{{Archer}}'': In Sterling Archer's dream in season 8, Pam became a man. He almost had a future with a bunch of trafficked Chinese women.
* The opening to an episode of ''WesternAnimation/{{Arthur}}'' had Arthur wondering how life would be easier if people could turn into other people should the need arise. The Imagine Spot shows Arthur about to be caught by his mother for making D.W. mad, so he transforms into his ''grandmother'' and confuses his mom.
* In the ''WesternAnimation/BatmanBeyond'' episode "Out of the Past", [[spoiler:it turns out Ra's Al Ghul has [[GrandTheftMe taken over his daughter's body]]]], which is even more disturbing than it sounds. Ra's can speak with his Ra's voice, even though he has the body of a woman... the transition is outright creepy. Furthermore, Ra's still acts in a very effeminate manner, despite the voice. Remarking on the situation:
-->'''Terry:''' Lady, that is the sickest thing I've ever seen. You're creeping me out!\\
'''Bruce:''' You? She ''kissed'' me.
* ''WesternAnimation/CodenameKidsNextDoor'':
** "Operation: F.U.T.U.R.E." has a young misandric lass who gets a "Girlifyier" gun from her alternate future self. Cue the dystopian alternate future, where Numbuh Four [[spoiler:(minus his hand)]] is the only adult male left. He becomes the leader of the Boys Next Door; with the help of Numbuh Three's granddaughter develops a "Boyifyier", and a sex-swapping battle ensues. [[spoiler:He manages to evade this future by going back in time and changing things]].
** "Operation: C.A.R.A.M.E.L.", where Numbuh Five's candy-hunting rival, Heinrich von Marzipan, [[spoiler:turns out to have once been a girl, who was transformed into an ugly boy through some magic caramels which took away ''her beauty'']]. And this is the reason he has such a big grudge against Abby.
* In the ''WesternAnimation/DannyPhantom'' episode "Attack of the Killer Garage Sale", there is a very brief scene (literally just a second) where Technus turns Danny into a blonde supermodel with a ghostly remote control.
* ''WesternAnimation/DextersLaboratory'': In the episode "Oh, Brother", Dexter gets tired of Dee Dee's antics and uses one of his inventions to travel to an alternate universe where he has an older brother instead of an older sister. Unfortunately, Dexter discovers that "Dudey" is an obnoxious JerkJock [[ParentalFavoritism whom his parents favor over him]] and who is even more destructive than Dee Dee.
* In ''WesternAnimation/TheEmperorsNewSchool'' episode "Girls Behaving Oddly," Kuzco and Kronk use one of Yzma's potions to turn themselves into girls so that [[GenderBenderFriendship they can befriend Malina]], whose "girlfriends" have abandoned her.
* ''WesternAnimation/TheFairlyOddParents'':
** In "The Boy Who Would Be Queen", Timmy becomes a girl after he mocks Wanda's idea of wishing to turn into one (to find the perfect gift for Trixie Tang), noting that he did say "I wish" and "girl." This does allow him to think like a normal girl; after some humorous jabs at him by his godparents, Timmy gets back at them by wishing they switched genders, becoming Cosma and Wando.
** In "The Good Old Days!", Timmy wishes himself, his grandfather, Cosmo and Wanda into a 1930s style cartoon where WouldntHitAGirl is a law of the universe. He therefore makes an additional wish that the Vicky analogue was a boy so he can defeat "him".
** It's never been revealed how Timmy's parents, who dressed as each other for the HalloweenEpisode, were affected by Timmy's "Real and Scary" wish. Apparently, it wasn't traumatic for them, as they dressed as each other again in "Take and Fake".
** In "Dadlantis", Chloe's wish turns her and Timmy into mermaids, with Timmy becoming female in the process.
** This happened to Timmy again in a Magazine/NickelodeonMagazine comic where he saw that his classmate Elmer was sad and wished to be his fairy godfather. His fairies didn't let him finish speaking before granting the wish and ended up turning him into a fairy god''mother'' instead.
* Bender from ''WesternAnimation/{{Futurama}}'' blurs the line between the "already ill-defined robot sexes" more than once:
** In "Raging Bender", he becomes a fighter for the Ultimate Robot Fighting league, and is first billed as "Bender The Offender"; as his popularity falls, however, he's forced to play the GorgeousGeorge {{Heel}} role of "The Gender Bender", dressed in a blonde wig and pink tutu.
** In "Bend Her", Bender poses as a fembot to compete in the Olympic games, wins several gold medals, then has to have a sex change in order to pass the gender verification test. As the fembot "Coilette," Bender begins a relationship with the robot actor Calculon -- planning initially to marry and divorce him so she can take half his stuff. However, it turns out that Calculon is genuinely in love with Coilette, and prepared to give up acting to be with her. In the end, the crew helps Bender fake Coilette's death at the wedding so he can undo the sex change without hurting Calculon more than necessary.
** "Neutopia" brings the entire Planet Express crew to a planet where gender is unknown, and an alien swaps their sexes. Leela and Amy do not enjoy being male, while Fry, Bender, and the other men-turned-women find the experience fun. And in a CallBack, Bender's female form is Coilette.
** In "Prisoner of Benda", Amy and Professor Farnsworth use an AppliedPhlebotinum device to voluntarily [[FreakyFridayFlip switch bodies]] (she wants to binge eat without consequences, he wants to be young again). Once they try to switch back, however, they discover that the machine cannot be used on the same two people twice... leading to a barrage of body swapping [[HilarityEnsues hilarity]] that includes (but isn't limited to) Bender inhabiting Amy, Leela switching into the Professor's body, and Amy switching with Hermes.
* In one episode of ''WesternAnimation/JohnnyBravo'', "Witch-ay Woman", a FortuneTeller tries to teach Johnny a lesson in showing women respect by turning him into one. [[spoiler: He may or may not have only been mesmerised into thinking he was a woman.]]
* ''WesternAnimation/JohnnyTest'':
** In one episode, an invention turns Johnny into a hot girl for about 5 seconds, then overloads and turns him into a hulking female monster. She turns back to normal a few seconds later.
** In a later episode, an invention turns Susan and Mary purple, then huge-headed, then male. They revert after a while, but it was AllJustADream anyway.
** Another episode has Johnny and Dukey turn into female rollerbladers to win a roller derby.
* In ''WesternAnimation/JusticeLeagueAction'', when ComicBook/{{Superman}} is exposed to pink kryptonite he's turned into a woman (and an AmazonianBeauty at that, except his voice stays the same) instead of being turned gay. He doesn't seem to mind too much, although once it's resolved [[LetUsNeverSpeakOfThisAgain he asks Firestorm not to tell Batman]].
* ''WesternAnimation/KimPossible'':
** Kim Possible and Ron Stoppable once [[FreakyFridayFlip swapped bodies]]. However, the only time the fact they don't have the same gender affected the episode was when Kim forgot which bathroom at school "Ron" was supposed to get in.
** It's never been stated how far Camille Leon can go while shapeshifting into males.
* In ''WesternAnimation/TheLegendOfVoxMachina'' episode 5 "Fate's Journey" when Vox Machina makes camp [[HandsomeLech Scanlan]] [[ChivalrousPervert Shorthalt]] the Gnome [[GirlsLikeMusicians Bard]] starts reading incantations from a spell scroll he has. He turns himself into a frog, a Unicorn-Hippocampus, and then into a Elven Woman (who basically looks just like him but female and tall). He approves of [[ManIFeelLikeAWoman his own looks in that form]], and leaves [[DumbMuscle Grog]] "Confused, and aroused".
* ''WesternAnimation/LloydInSpace'' hangs an entire episode on a one-shot who's "Neither Boy or Girl" and of a species that chooses its own gender at the age of thirteen. They do at the end of the episode; however, they look no different from before. But we'll never know which gender they chose.
* In ''WesternAnimation/TheLoudHouse'' episode "[[Recap/TheLoudHouseS1E23OneOfTheBoysATattlersTale One of the Boys]]", Lincoln enters an AlternateUniverse where his sisters are brothers. Later on, he briefly becomes a girl named Linka (in which the brothers are a ''[[BigBrotherInstinct whole lot]]'' nicer to).
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'':
** In the episode "[[Recap/MyLittlePonyFriendshipIsMagicS3E5MagicDuel Magic Duel]]". Twilight Sparkle briefly changes Applejack from a mare to a stallion. [[spoiler:It turns out her entire magic display was fake and it was really Applejack's brother Big Macintosh [[RingerPloy pretending to be a genderbent version of her]]]].
** Possibly in "[[Recap/MyLittlePonyFriendshipIsMagicS4E23InspirationManifestation Inspiration Manifestation]]", depending on whether Rarity ''replaced'' that mariachi pony with Octavia, or ''turned him into her''. [[WhatHappenedToTheMouse The episode doesn't really explain what happened there.]]
* In an episode of ''WesternAnimation/OzzyAndDrix'', when Ozzy accidentally ends up in the body of a girl instead of his usual (for the TV show) human host Hector, Ozzy's own sex starts changing. He very nearly becomes completely female, but does not lose his beard.
* The premise of ''WesternAnimation/PennZeroPartTimeHero'' involves a combination of [[BodySnatcher body snatching]] and {{shapeshifting}}, so naturally the main cast occasionally end up getting genderbent.
** In "The Princess Most Fair" Penn is the eponymous princess, Sashi is a knight, Boone is a fairy godmother, Rippen is a sorceress, and Larry is a female magic mirror. While Sashi and Rippen's genderbent forms both look like entirely different people, Boone and Penn just look like female versions of their original selves.
** In "Rip-Penn", Boone is a housemaid while Sashi is a male chemist. Both forms are very similar to their regular ones, with the only major difference being their clothing and hair.
* There was an episode of ''WesternAnimation/PurnoDePurno'' where the eponymous character drank a potion that changed him into a girl. He remains a girl for the remaining duration of the episode, where he goes to a tent in a Middle Eastern desert as a vacation spot.
* ''WesternAnimation/RobotChicken'' had an episode parodying ''Manga/RanmaOneHalf'' where the Nerd finds a spring like the spring of the drowned girl at Jusenkyou. He jumps in imagining all the advantages of being a sexy girl. Unfortunately, it turned out that the girl who drowned there was fat, gassy and had a club foot, so you can imagine the payoff.
* On one episode of ''WesternAnimation/SamuraiJack'', [[spoiler:Aku assumes the form of female warrior Ikra, to trick Jack into leading him to a way back to the past, so as to destroy it.]]
* ''WesternAnimation/TheSimpsons'':
** At the end of the episode "[[Recap/TheSimpsonsS5E2CapeFeare Cape Feare]]", it's shown that Grampa apparently needs to take a type of medication to prevent this from happening to him.
** Towards the end of the "WesternAnimation/TreehouseOfHorror [[Recap/TheSimpsonsS15E1TreehouseOfHorrorXIV XIV]]" segment "Stop the World, I Wanna Goof Off", while Lisa was messing with a reality changing watch; Homer, Bart, Marge and Maggie are briefly gender bent.
* Hogatha in ''WesternAnimation/TheSmurfs1981'' switches genders when she becomes a Smurf in "The Fake Smurf".
* ''WesternAnimation/SpiderManAndHisAmazingFriends'': In "Seven Little Superheroes," the Chameleon, a male villain, displays his shapeshifting powers by assuming the forms of female heroes Shanna The Jungle Queen and Firestar (as well as several male characters.)
* In ''WesternAnimation/ThunderCats1985'', the evil Mumm-Ra has transformed into a female on at least four separate occasions:
** In "The Garden of Delights", Mumm-Ra assumes the form of a faerie queen to lure Tygra into a trap.
** In "The Mask of the Gorgon", he turns into Nada of the Warrior Maidens.
** In "The Queen of Eight Legs", Mumm-Ra turns into a tiny female fairy called Diamondfly.
** In "The Astral Prison", Mumm-Ra transforms into the Nether Witch, which is implied to be an alternate identity he regularly assumes.
* ''WesternAnimation/TUFFPuppy'' has [[ShapeShifting The Chameleon]], who wears an AppliedPhlebotinum suit which allows him to transform into anything, including into a woman [[spoiler: at least three times, once as Bunny the Real Estate Agent and again as [=FiFi=] Oui Oui, and as the [[RecurringExtra little chipmunk girl]].]]
* In ''WesternAnimation/{{Wakfu}}'', season 2, episode 10, Evangelyne and Amalia temporarily turn male thanks to a magic potion to be able to play Gowbbowl in the misogynistic town of Brâkmar.
* ''WesternAnimation/ZekesPad'': In "Gender Render", Zeke tries to console his crush Maxine but she tells him that he is a guy, and he just wouldn't understand what it is like to be a girl. Maxine's comment makes Zeke think, and he wants to understand girls better. He tries to change his mind into that of a girl, but instead accidentally changes his body into that of a girl.
[[/folder]]

* ''WebAnimation/DingoDoodles'' this briefly happens to side character Mr Wizardly when he touches main character Sips who is cursed to inflict a RandomEffectSpell on even the slightest skin contact, becoming Mrs Wizardly. Sips was unconscious at the time and assumed Wizardly was trans and had decided to magically transition and congratulates Wizardly on coming out. Wizardly has a male gender identity however and reverses the spell off screen by the next time he appears.

* ''WesternAnimation/TheAmazingWorldOfGumball'' episode "The Job" involved Richard's reality-warping shockwaves hitting the other Wattersons and Larry, who switch genders at one point,

* The Hong Kong action comedy ''Film/HolyWeapon'' features this towards the end. In the movie, [[OldMaster Ghost Doctor]] creates "Feminine Wine" for an intersexed woman, warning that if a man drinks even just a drop, he'd become a woman. They then have the male IdiotHero Ng Tung look after the brew without telling him what it is or what it does. Ng Tung unwittingly drinks the brew, thinking it's a nutritious soup. Then [[ItMakesSenseInContext his penis tells him]] that from now on, whenever his body gets wet, he'll turn into a woman. He'll become a man again when he dries his body. [[spoiler:This becomes useful during the final battle, when the BigBad's {{Mooks}} throw Ng Tung into the river as a sacrifice, only for him to emerge fully female, complete with {{Gainaxing}} and GirlishPigtails. Thus, he/she becomes the Seven Virgins' EleventhHourRanger (since one of them is trapped in a net throughout the battle).]]

* ''Webcomic/TheOrderOfTheStick'':
** Roy has to don the mystical "Belt of Femininity/Masculinity" to escape a pair of would-be assassins. This is an actual magical item in ''TabletopGame/DungeonsAndDragons'', though this one reacts to Remove Curse better. Breaking [[AttractiveBentGender the trend]] slightly, Roy is NOT a beautiful woman, and is still bald.
** Also a common theme is the fics written in the CrackPairing thread on the forum. And a theme week for avatars every year.

* ''Film/{{RIPD}}'': To everyone living Roy looks like a ([[MsFanservice beautiful]]) young woman. [[spoiler: Later we see Proctor has a male avatar and Nick's second avatar is a girl scout.]]

* In ''Film/ScoobyDooMonstersUnleashed'', Shaggy drinks an unknown potion and transforms (from the neck down) into a woman, for a little while. This turns out to be a ChekhovsGun as [[spoiler: the villain was using it to disguise his identity]]

** Averted/Misdiagnosed once by ComicBook/AmbushBug in ''ComicBook/Supergirl1982'' #16. The Bug spends most of the story trying to cure Franchise/{{Superman}} of the dastardly plot that transformed him into a young blonde woman. It's a case of CriticalResearchFailure for Ambush Bug, though. Despite his {{Genre Savv|y}}iness, he somehow was completely unaware of the existence of [=SuperGIRL=]. He does, however, turn out to be GenreSavvy enough to figure out ComicBook/{{Supergirl}}'s secret identity at the end.

** The movie ''Film/JumanjiWelcomeToTheJungle'' is about a group of teenagers who get sucked into a video game and are stuck in the bodies of the avatars they chose. The group's wannabe AlphaBitch, Bethany, ends up selecting [[GenderBlenderName Professor Shelly Oberon]], whom the game describes as a "curvy genius" (which she assumes means "Hot Scientist"). To her surprise and horror, Shelly Oberon turns out to be an overweight middle-aged man (played by ''Creator/JackBlack''). Hilarity ensues.

*** Spencer re-enters the game, hoping to regain the confidence he had as Dr. Smolder Bravestone. However, the game sticks him with the avatar of the female [[ClassyCatBurglar thief]] Ming Fleetfoot. To add insult to injury, Fleetfoot has essentially the same strengths and weakness as his normal, male self: high intelligence and cleverness, but no physical strength or fighting skills -- and a pollen allergy to boot.
*** Later, Spencer's grandfather, Eddie (Creator/DannyDeVito), ends up in Fleetfoot's body; he's too amazed by the fact that he has ''hair'' again (being bald in the real world, and having spent much of the film as the extremely strong, but bald, Bravestone) to be concerned about being female.

** The movie ''Film/JumanjiWelcomeToTheJungle'' is about a group of teenagers who get sucked into a video game and are stuck in the bodies of the avatars they chose. The group's wannabe AlphaBitch, Bethany, ends up selecting [[GenderBlenderName Professor Shelly Oberon]], whom the game describes as a "curvy genius" (which she assumes means "HotScientist"). To her surprise and horror, Shelly Oberon turns out to be an overweight middle-aged man (played by ''Creator/JackBlack''). Hilarity ensues.

* the Central premise of ''Webcomic/YouWokeUpAsAGirlThisMorning'' revolves around the trope, however, [[spoiler:it is [[FirstEpisodeTwist subverted at the end of chapter 1]], when it is revealed the main character [[DisguisedInDrag just wore the female uniform to school]] and claimed a genderbend occurred overnight.]]

* ''Film/AllOfMe'' uses the "shared body" variation, as Lily Tomlin's character dies and partially inhabits Steve Martin's body.

* In Creator/BlakeEdwards' ''Film/Switch1991'', the sexist womanizer Steve Brooks is killed by a group of his angry ex-lovers. God gives Steve one chance at redemption where he must return to Earth and find someone who truly loves him. If he fails, he will go to Hell. The Devil convinces God to transform Steve into a woman named Amanda to make the challenge harder for him.

Contrast with UsefulNotes/{{Transgender}} and {{Hermaphrodite}}, which are real-life phenomena (though on rare occasions, a Gender Bender character might ''turn into'' a hermaphrodite instead of, strictly speaking, the "opposite sex"; also, Gender Bender stories can intersect with transgender characters, by having someone transition unexpectedly by magic, or have the experience of being gender-changed bring a transgender character out of denial. Not to mention all the possibilities of using Gender Bender stories as metaphors for transgender identity...). Also contrast with EasySexChange, which deals with idealized but ''somewhat'' realistic takes on the UsefulNotes/{{Transgender}} experience. Not related to WasOnceAMan.

* ''Franchise/MarvelUniverse'':
** In ''ComicBook/UltimateSpiderMan'', Jessica Drew, Spider-Woman, is the end result of the Ultimate Clone Saga. She is a clone of Peter Parker, implanted with his memories and genetically modified in vitro to be female and develop additional powers. During the Clone Saga she fills the same role as Ben Riley did in the 616 Clone Saga. Afterwards she assumed the CIA/FBI created identity of Jessica Drew and returned to active crime fighting as Spider-Woman. She confessed that along with inheriting Peter's memories, she is still in love with Mary Jane Watson.
** ''ComicBook/XMen'' examples:
*** Supporting character Courier has the power of complete control of his body's cells, allowing for shapeshifting as well as other abilities. While undercover as a woman, he was discovered by [[EvilutionaryBiologist Mr. Sinister]] and injected with drugs that would cause his body to break down. Gambit made a deal with Sinister to have Courier stabilized, and Sinister kept up his end of the bargain -- but didn't know Courier was originally male. The female form is now Courier's default form.
*** Due to a consciousness transfer to a cloned body gone slightly askew, Sinister himself is now ''Miss'' Sinister.
*** And now Misters Sinister. And then back to a Miss, this time in a stolen body. At this point Sinister is more of a consciousness that occupies whatever body (or bodies) it needs.
*** Endo of ''ComicBook/DeathOfWolverine: The Weapon X Project'' and ''Comicbook/{{Wolverines}}'' is introduced as a Chinese woman named Meifeng when Sharp frees her from the Paradise installation. [[spoiler:It's eventually revealed that she was actually ''a man'' before Paradise got hold of her, and the boyfriend/fiance she's been desperate to locate after escaping is not only dead, but was actually his ''girlfriend''.]]
** ''ComicBook/AlphaFlight'' member Walter Langkowski spent several years as "Wanda," due to having possessed a dead female teammate's body.
** ComicBook/IronMan is even subjected to this; his armor (which, at this point, is partially fused with his body) gets hijacked by Ultron and reshaped into the image of Janet van Dyne, Ultron's "mother". After it's undone, the entire [[ComicBook/TheAvengers Mighty Avengers]] team teases him about it.
** The Skrulls are a race of shapeshifters. Skrulls changing into other genders have been seen from their very first appearance (the four Skrulls that attempted to replace the Fantastic Four were all male). It's just that [[ChekhovsGun nobody had noticed the detail or thought on it]] until the example below.
** One obvious application of the Skulls' inherent ability didn't come to light (at least, in canon) until the male Skrull Xavin turned up in ''ComicBook/{{Runaways}}'' and asked for Karolina's hand in marriage. Karolina, being a lesbian, refused... until Xavin transformed into a female human, because for a Skrull to change his/her physical sex is as easy as blinking. While the psychological ease with which Xavin shifted his/her gender identity to match her new sex still seems to be fairly rare (most other [[NominalImportance named]] Skrull characters seem to have a strong preference to not change their sex even when disguising themselves as other species), it's apparently also not seen as any big deal in Skrull society.
** Loki of ''ComicBook/TheMightyThor'' spent some time in a female body (eventually revealed to be that of the goddess Sif); he eventually returned to his usual body.
*** In Loki's [[ComicBook/LokiAgentOfAsgard solo book]], while male most of the time, they can and do flip gender at will. They spent weeks in female form infiltrating Lorelei's band of thieves, then a few issues later flipped genders AGAIN to gain the trust of the Angels, in an all-female society, and didn't bother to switch back for the rest of the miniseries. Odin even refers to them as his child who is both his son and daughter at least on two occasions. This continues in the jerks [[ComicBook/VoteLoki next solo book]] too, complete with a character joking about Loki becoming America's first female president.
** Invoked in ''ComicBook/CaptainAmerica'' storyline, "The Superia Stratagem". Supervillain Superia plans to establish "Femizonia" -- a female-ruled utopia from which she will TakeOverTheWorld. Captain America and his allies infiltrate her base to stop her, but Cap and Paladin are captured at one point, and subjected to Superia's feminization process. (She believes that, as women, the heroes will see the light and join her cause.) The two male heroes are rescued before the process does anything to them, however.
** Good Boy of the ComicBook/GreatLakesAvengers is a girl named Good who transforms into a masculine wolf.
** In ''ComicBook/TheInfinityGauntlet'', Adam Warlock goes through a JourneyToTheCenterOfTheMind VisionQuest in which he is turned female, culminating with her giving birth.

* Lucifer, in Joseph Michael Linsner's ''Dawn'' series, has been shown at least once to be able to take on a female form. Considering he is a former angel and [[spoiler:the gay lover of Ahura Mazda (the series' God analogue)]], this has some interesting potential ramifications.
* At the end of the ''ComicBook/XXXenophile'' story "Vici, Vidi, Veni", an army invades territory that worships a god of lust, believing him to be a farce, and everybody in their empire gets turned into frogs. The smirking god asks the sole unchanged knight whether he now believes, and the survivor says yes. As a reward for the "conversion", he's promptly turned into a woman and made an acolyte of the god, being led off to the novice quarters (and, implicitly, [[GirlOnGirlIsHot hot lesbian sex]]).
* In the comic book ''[[ComicBook/TheUltraverse Mantra]]'' from Malibu Publishing, the main character is a warrior employed by a wizard. He's continually reborn by having the wizard transplant his soul into a new male host whenever he died. At the start of the series, the wizard is betrayed and has only enough strength to move his most loyal warrior's soul one more time. He tells the warrior that this time it will be different. The warrior awakes to find himself in the body of a single mother. The series deals with him coping with this and having to learn magic to cope with his lack of martial abilities.
* In ''ComicBook/Camelot3000'' by Mike W. Barr and Brian Bolland, Myth/KingArthur is awakened from his sleep during an alien invasion. A number of Arthur's knights have been reincarnated, sometimes into distinctly different bodies (e.g., black, Asian, [[{{Mutants}} hideous mutant]].) Sir Tristan, quite a womanizer in his former life, is reincarnated as a young woman. The appearance of Isolde (also reincarnated, but still female) complicates the matter further, although they end up in a surprisingly sweet lesbian relationship.
* When IDW comics started their ''[[ComicBook/TheTransformersIDW Transformers]]'' comic, it was decided that [[OneGenderRace there would only be male Cybertronians]]. When they decided to include female transformer Arcee into the universe, they decided ''not'' to {{retcon}} their decision, and so they made Arcee the victim of a forced alteration by a MadScientist specifically to introduce gender to the race. She's understandably pissed off about it.
** This later got retconned into being a purposeful change on Arcee's part, it's just the torture and other experiments at the same time she objected to. Additionally, other cybertronians who transitioned on purpose after being introduced to the concept have been introduced.

* Mighty Man of ''ComicBook/TheSavageDragon'' is an ancient entity passed from host to host at the point of death. The current host is female Ann Stevens (or New Ann...it's complicated) - the host, regardless of their sex, is able to transform into a tall blonde man with FlyingBrick powers, by tapping their wrists together.

* ''ComicBook/{{Youngblood}}'':
** In 1995, Creator/ImageComics decided to cash in on their "target demographic" by temporarily turning many of their heroes into heroines, a period known as "Extreme Babewatch". This event started in ''Youngblood'', where ComicBook/{{Glory}}'s nemesis Diablolique takes revenge on her enemy (and on men as a whole) by changing every man Glory had ever met into a woman. The event lasted only a month and didn't have much to carry on plot wise, but it occurred through much of image's then-current lines, dramatically raising the amount of fanservice. As was the point.
** In the 2012 relaunch, Photon, formerly a male character, becomes Lady Photon. Their race apparently switches genders every seven years.
* Once, when ''ComicBook/GrooTheWanderer'' was ''The Most Intelligent Man in the World'', he accidentally got most of his supporting cast thrown into prison (it's a long story). [[HotWitch Arba]] and [[WitchClassic Dakarba]] have enough magic to transform everyone in the dungeon into ducks, but it takes [[ConMan Pal]] to suggest that a dungeon full of beautiful women [[ShowSomeLeg might be more useful]] for actually escaping.
* Monster Girl from ''ComicBook/{{Invincible}}'' is, well, [[ExactlyWhatItSaysOnTheTin a girl who can turn into a monster]] -- a MALE monster. She's even [[spoiler: fathered a son]] in monster form.

* In ''ComicBook/TheWickedAndTheDivine'', Lucifer is reincarnated as a girl (who generally goes by Luci and uses female pronouns). Inanna, a female Sumerian goddess, was likewise incarnated as male, though in his case, [[AmbiguousGenderIdentity "guy is a small word"]]. The 1831 Woden also incarnated as a woman.
* ''ComicBook/JudgeDredd'': When America Jara died, her lover Bennet Beeny had his brain transplanted to America's body so that he could continue to be with her. Additionally, he had used his old body to impregnate America's, so that he ended up giving birth to his own daughter.
* An example from [[FrancoBelgianComics French Comics]] appears in ''Paulette'' by GeorgesWolinski and GeorgesPichard (1970): the old Joseph, a ''clochard'' that saved the eponymous protagonist, is suddenly magically transformed in a stunningly [[AttractiveBentGender attractive]] brunette (with the same age of the [[ShamelessFanserviceGirl blonde Paulette]]) and becomes her companion in a ton of misadventures. Though now Joseph is very younger, healthier and in a [[IncrediblyLamePun better physical shape]], she is absolutely [[BlessedWithSuck not pleased to be female]], she has still the mindset of an old ''clochard'' (with a little bit of mischief added) and she [[LampshadeHanging talks]] frequently as a [[OldSoldier veteran]] of the UsefulNotes/FirstWorldWar (still in a very female and young body). She likes to repeat "''I could be your grandpa''" and similar other sentences. Also [[InnocentFanserviceGirl naked]]. We have to punctuate that this comic is a hurricane of FanService. At the end of the first adventure with Paulette, Joseph is able to become the old man again: however he has a ton of photos and PinUp of his nude stunning female self (with dedication... to Joseph!) When [[TheIdealist Paulette]] is kidnapped again, Joseph is [[MostWritersAreMale transformed]] [[FirstLawOfGenderBending definitively]] in the brunette and forced to be involved in [[LonelyRichKid Paulette]]'s endless surreal misadventures.

* In the second issue of ''ComicBook/BodieTroll'', Bodie uses magic lipstick to turn into a human girl.
* ''ComicBook/{{Fables}}'': In ''Cinderella: Fables Are Forever'', Ivan Durak turns out to be [[Literature/LandOfOz Dorothy Gale]] in disguise.
* In ''ComicBook/TheLeagueOfExtraordinaryGentlemen'', Tiresias' youngest daughter, Bio/Bion/Vita/Vito/Roland/Orlando, began to develop this ability at the age of ten.

* ''Literature/HarryPotter'' works:
** Played with in ''[[http://www.fanfiction.net/s/5353683/1/The_Girl_Who_Loved The Girl Who Loved]]'', via a crossover with ''Manga/RanmaOneHalf''.
** ''Fanfic/InThisWorldAndTheNext'' has Ron turn into a girl as a consequence of a GroinAttack by a troll. It MakesJustAsMuchSenseInContext.
** [[http://www.fanfiction.net/s/8175132/1/Jamie_Evans_and_Fates_Fool Jamie Evans and Fate's Bitch]] is one of many super!Harry PeggySue fics, except when Harry comes back, he ends up in the wrong body.
** In ''Fanfic/BecomingFemale'', Snape makes Harry drink a potion which turns him into the perfect female form.
** ''[[https://www.fanfiction.net/s/10073299/1/Harry-Potter-And-The-Unexpected-Second-Life Harry Potter and the Unexpected Second Life]]'' is an alternate ending to ''[[Literature/HarryPotterAndTheDeathlyHallows Deathly Hallows]]'' where both Harry and Ron after the Battle of Hogwarts are victims of the Widowmaker poison, which only affects men, and only survive by taking Polyjuice Potion and turning into Hermione, and end up having to stay female for several months while they still have the potion in their systems.
** In ''[[https://www.fanfiction.net/s/232736/1/Ah-My-Witches-Though-Some-Previously-Could Ah! My Witches (Though Some Previously Could Not Be Considered Witches)]]'', Voldemort's newly invented immortally potion ends up turning himself, Draco and Lucius into [[Manga/AhMyGoddess Skuld, Urd and Mara]] respectively (Narcissa also takes the potion, but since she was already female, she just turns into Belldandy).
** In ''Fanfic/WaterAerobicsForTheAquaphobic'', during a poorly-planned Hogwarts field trip to [[Manga/RanmaOneHalf Jusenkyo]] that resulted in most of the students being cursed into various forms, Ron falls into Spring of the Drowned Violent Tomboy, which curses him to turn into Akane Tendo whenever he gets splashed with cold water. Theodore Nott is similarly transformed into a siren, a kind of female monster like a humanoid equivalent of a black widow, and there was also a grandfather of Sirius' who apparently fell into the Spring of the Drowned Double-Jointed Concubine.
** In ''[[https://www.fanfiction.net/s/2477343/1/Potion-99 Potion 99]]'' Harry takes a potion to permanently turn himself into a girl because the wizarding world is extremely bigoted about homosexuals and crossdressers.
** In ''[[https://www.fanfiction.net/s/3654234/1/Changes Changes]]'' Harry turns into a girl because Metamorphs experience a random major physical change when their powers first awaken. Due to the inadvisability of shifting anything more complicated than soft tissue, the change is permanent.
* ''Fanfic/IrreversibleDamage'': One of the potions reverses the physical sex of those who drink it. This ends up seeing considerable use in the story, and multiple characters -- including Greg himself -- undergo permanent sex changes.
* There are several fan-written sequels to the "Claire Kent: Super-Sister" ''ComicBook/{{Superboy}}'' comic book story (see above). In these stories, Clark's transformation into Claire is ''not'' AllJustADream. The first story in the series can be read [[http://www.fictionmania.tv/stories/readtextstory.html?storyID=3355098155346635372 on this Website]].

* In the ''LightNovel/HaruhiSuzumiya'' fanfic ''[[https://www.fanfiction.net/s/5453599/3/Kyonko-s-New-Life Kyonko's New Life]]'', Haruhi causes two universes where the cast are [[GenderFlip opposite genders]] to merge, resulting in those in the know of TheMasquerade switching minds with their [[GenderFlip alternate selves]]. Our poor OrdinaryHighSchoolStudent and CosmicPlaything Kyon is now a girl with ACupAngst who still has to deal with the ever insane and domineering alternate universe Haruki.

* ''[[https://www.fanfiction.net/s/11431303/1/Red-White-and-Blue Red, White, and Blue]]'', a ''Series/BuffyTheVampireSlayer'' crossover with the MarvelUniverse, in which a Halloween costume sticks Xander with Mystique's powers and base form, and an inability to resume his own appearance... so he morphs into Willow, and poses as her cousin.
* ''[[https://lycelia.com/s/iu Trapped]]'', a virtual genderswap fic in the ''Anime/SwordArtOnline'' fandom, in which Kirito is stuck playing as his little sister's avatar in the death game for years.

* ''Fanfic/LeagueOfExtraordinaryGentlemenTempestRewrite'':
** As Futura, Orlando can now change gender at will ([[{{hermaphrodite}} and go in-between]])
** In Epilogue 2, [[Franchise/CthulhuMythos Nyarlathotep]] becomes [[LightNovel/NyarukoCrawlingWithLove Nyarko-san]]

* While uncommon, Thor fanfics where Loki turns into a woman are not too hard to find. It's usually explained [[spoiler: by the fact that he's a frost giant]] and inspired by Norse myths of the gender-changing god (see the "Norse" entry in the "Mythology" tab). [[http://savu0211.deviantart.com/gallery/43010983?offset=24 (All) Father Loki]] is one such fic by Creator/{{Savu0211}}.
* ''Fanfic/TheInfiniteLoops'' will occasionally reboot a looper as the opposite gender. Twilight speculates it happens roughly two percent of the time. Some loopers do this more than others, such as [[VideoGame/MassEffect Commander Shepard]] and [[VideoGame/FiveNightsAtFreddys Bonnie the Bunny]].
* ''[[http://web.archive.org/web/20011225065823/http://www.fortunecity.com/lavendar/pimlico/131/hhalf.htm Joel 1/2]]'': An invention turns [[Series/MysteryScienceTheater3000 Joel]] into a woman. It should be noted that it was the author's idea for how the show could keep Joel himself on with Joel Hodgson (His actor) leaving (It was written before Mike officially became host).
* In the ''Film/TheMatrix'' fanfic ''Bringing Me To Life'' two male characters, Apoc and David, are [[{{Reincarnation}} reincarnated as female.]]
* This is completely and totally [[AvertedTrope averted]] in the ''Series/BuffyTheVampireSlayer'' / ''ComicBook/PowerGirl'' fanfic ''Fanfic/OriginStory''. It isn't a gender-bender story at all, despite the fact that you don't find that out until 13 or so chapters in. If all you read in those first dozen chapters, however, you'll come away thinking that this is a story about Xander Harris turned into a girl. Except it's not. It's about a girl who has a sort of psychotic break and thinks she's Xander Harris.
** To be more specific, the protagonist of the story appears to initially be Xander trapped in the body of Power Girl, with an Interlude also showing ''her'' stuck in his body. It eventually turns out that, because of both Xander and Karen's unique natures, the decision to dress as her on Halloween created a sort of anomaly within the multiverse. When the spell ended, Harris and Power Girl were both sent back to their respective universes, but along with this copies were created - a girl with Karen Starr's body but the memories of Xander Harris, and a boy with Xander's body and Karen's memories; both are essentially newborns, each deposited in universes where they now live as their "home" worlds (Marvel for the former, Alexandra Harris; Stargate for the latter), and while the latter's story is not followed it's suggested to be somewhat similar to Alex's (in terms of finding oneself and such).
* When ''Anime/YuriOnIce'' was announced, a lot of Western fans thought it meant [[YuriGenre that kind of yuri]], and were surprised to see that it's actually about ''male'' figure skating. In Japanese, all [[OneSteveLimit three]] versions of "Yuri" are written differently... making [[YuriGenre Yuri]] [[Anime/YuriOnIce On Ice]] a convenient pun for doujinshi in which the male characters are genderbent, at least one of which does exist.

* Applies in a sense in the ''Series/StargateSG1''/''Anime/YuGiOh'' crossover "Fanfic/TheSerpentsVow"; Seto Kaiba is the Goa'uld Queen Set, also known as Nephthys, but despite being a Queen and hence capable of giving birth to other symbiotes, he has retained the same male host since ancient Egypt and considers it just as much his true form as the symbiote.
* ''Fanfic/{{Domoverse}}'': Ron, who turns into a girl over the course of several hours after getting hit by a car and his mutant power manifesting.
** Estelle becomes a boy over the course of a year thanks to her mutation.
** And Ruth, who used to be [[spoiler:Isaac]]. This was done very much against her will.

* In ''[[https://www.fanfiction.net/s/3522356/1/Take-the-Green-and-Go Take the Green and Go]]'' [[Manga/RanmaOneHalf Ranma]] is cursed with a female form, as in canon. Unlike canon, however, said female form is [[WesternAnimation/KimPossible Shego]], who had been sent back in time and drowned at Jusenkyo. Will Du later falls into Spring of Drowned Girl (the spring Ranma fell into is Spring of Drowned Demon Woman) and is cursed with the form of a blonde-haired girl.
* In ''Fanfic/InheritanceOfCardsAndDemons'', this is the power of the Switch card, as [[Manga/BlueExorcist Rin]] finds out when it turns him into a girl named Sora.
* One of the main characters of ''FanFic/BoyScoutsOneHalf'', Matthew Atanian, fell into the same cursed spring as Ranma and thus has the same curse. A later introduced character, Perfume, is a woman who fell into Spring of Drowned Boy, and thus has the inverse curse.
* In ''Fanfic/GGKronosButIHaveForesight'', the main character, Evan Gamble, is turned into a girl named Eve upon being pulled into the ''Literature/PercyJacksonAndTheOlympians'' world. This is due to Artemis and Hera refusing to accept the help of a guy when a girl could do it just as well, and Aphrodite suggesting this compromise.
* In ''Fanfic/TheMerryGoRoundBrokeDown'', it's implied that Simon went through an incomplete, or even full, transformation. He still at minimum identifies as male, but it's also mentioned that he has the "wrong parts" as a weird side-effect of being turned into a CG character. He's also [[MisterSeahorse for some reason pregnant]].
* ''Literature/TheLordOfTheRings'' fanfic ''[[https://www.fanfiction.net/s/4300110/1/A-Day-in-Time A Day in Time]]'' revolves around Merry waking up in the bodies of his ancestors, one of whom happens to be his very pregnant (and about to give birth) great-grandmother.
* In ''Fanfic/EmpathTheLuckiestSmurf'', both Tapper and Duncan [=McSmurf=] get transformed into Smurfettes by a wish made with a magic egg, and Hefty gets partially transformed into one by Ghinelle the girl genie, who gets even on behalf of her mistress Smurfette for Hefty trying to use SexualExtortion to keep his mouth shut about Smurfette having a genie.
* The ''Franchise/MyHeroAcademia'' fanfic ''[[Fanfic/{{Hammerverse}} When all you have is a Hammer]]'' has this as Izuku's quirk. It's unusual in that Izuku gets the ability when they’re just four years old, and they identify as non-binary regardless of which form they’re in.
* In ''[[https://www.fanfiction.net/s/3872674/1/Account-Transfer Account Transfer]]'', [[Manga/RanmaOneHalf Ryouga]] has his original curse overwritten with one that causes him to turn into a girl as part of his wish to have Ranma's problems.
* In an interlude from ''Fanfic/FateSunnyOrder'', it's revealed that years ago, Ritsuka and Kana Tohsaka found Kaleido Ruby, who activated with blood from a cut on Ritsuka's hand and turned him into a magical girl. While Shirou was able to free his son from being a magical girl with Rule Breaker, it left Ritsuka still as a girl. The family had to wait for two weeks for Zelretch to turn their son back to normal, due to Ritsuka's girl body being made from aspects of multiple female counterparts.
* In ''[[https://www.fanfiction.net/s/13740751/1/Distorted-Reflection Distorted Reflection]]'', a battle with a D'arcmon damaged both Taichi's and Mimi's digivices. When they wake up the next morning, they find themselves in the opposite gender thanks to the damaged Digivices swapping data. The more they use their Digivices, the more they get repaired and in turn make it harder to return to their original genders.
** While their partners Agumon and Palmon remain the same, it's their ''Digivolutions'' that are affected. Agumon now digivoles into the female Sunflowmon, while Palmon digivoles into the male Growlmon.
* ExactlyWhatItSaysOnTheTin in ''[[https://www.fanfiction.net/s/11946465/1/Genderbent Genderbent]]'', where a dust mixture Jaune made is spilt onto him, Pyrrha, Ren, Nora, and Yang, turning them into the opposite gender. Later, an antidote made to turn Yang into a girl again is used on Weiss and Blake by Nora, turning both of them into boys.
* In ''[[https://www.fanfiction.net/s/11292442/1/ Nil Desperandum]]'', Lelouch's mind is sent back to the day of Britannian invasion of Japan [[spoiler:after his death in the Zero Requim]]. However, the body he ends up in is a female version of himself named Luluka.

* ''[[https://www.fanfiction.net/s/13317247/1/Danganronpa-Improper-Avatar Danganronpa: Improper Avatar]]'' has Hajime arrive in Hope's Peak like at the start of ''VisualNovel/Danganronpa2GoodbyeDespair'', only to find out that he's now a girl. The same process also happened to Nagito, Chiaki, Fuyuhiko, Peko, Mahiru, Mikan, and Kazuichi. [[spoiler:The discussion between Makoto, Kyoko, and Byakuya implies that this was the result of sabotage by Izuru Kamakura]].
* A rather odd example in the ''LightNovel/FateZero'' parody fic ''[[https://m.fanfiction.net/s/11896019/10/ Fate Crazy Knights]]'' which has Arturia able to summon her Knights of the Round (minus Lancelot, who is summoned as Kariya's servant) and Merlin. Initially, the knights Gareth and Galahad start out male. However, following the release of the Camelot chapter in ''VideoGame/FateGrandOrder'', all the Knights that debuted or were talked about in that singularity undergo character updates in chapter 10, leading Gareth to become a girl and Galahad to fuse with Mash (who is fused with his power in the game). While Merlin is able to turn Galahad back to normal, he can't do the same to Gareth because she doesn't mind being a girl, especially since she can become Gawain's favorite little sister instead of competing with Gaheris for the role of favorite little brother.
* In ''[[https://archiveofourown.org/works/23276197/chapters/56705365#workskin Interviewer]]'', a photographer named Cecilia gets akumatized with this power thanks to the frustration of Lila refusing to follow directions and the latter misgendering [[UsefulNotes/{{Transgender}} the former]]. The transformation are merely biological, so while Ladybug and Chat Noir are outright transformed, the already trans-girl Juleka becomes a cis-gender girl and Plagg (who is essentially genderless) is unchanged.
* In ''Fanfic/PoniesAfterPeople'', it is possible for someone to change gender when they become a pony. [[spoiler:This happened to the protagonist, Alex, who was once a man but is now a mare.]]
* In ''[[https://archiveofourown.org/works/27518512/chapters/67295026 Let's Go! Akane-kun]]'', [[Manga/RanmaOneHalf Akane]] wakes up one morning to find that not only has she become a boy, everyone she knows thinks that she has always been male. In addition, she (or rather "he") is now engaged to Shampoo, and Ranma is engaged to Nabiki.
* In ''[[https://www.fanfiction.net/s/13982750/1/Switching-it-Up Switching it Up!]]'', thanks to Mousse switching everyone's curses (except his own) around, Ryouga gets Ranma's curse and is cursed to turn into a blonde-haired girl every time he gets splashed with cold water.
* ''Fanfic/FatesCollide'': Arthur Pendragon became Arturia after too many class changes in Chaldea Academy. She later had her daughter Mordred [[spoiler:following an affair with Diarmuid Ua Duibhne]].
* ''Fanfic/QuirkMagicalGirlMascot'': Izuku Midoriya in this story has a quirk that turns him into a MagicalGirl MentorMascot, and can form bonds with others to make them into Magical Girls. Emphasis on [[ExactWords the word "girl"]], as any boy that Izuku Bonds with will become a girl. This has happened to Katsuki before they joined UA, and the same thing happened to [[spoiler:Shoto, Tenya, and All-Might]] later in the story.

* The 1940 Hal Roach feature ''Film/{{Turnabout}}'' concerns a bickering husband and wife, each of whom wishes they could have the "easy" life of the other gender. Their wish is subsequently granted by an enchanted Indian sculpture sitting on their mantelpiece. By the end of the film things are seemingly back to normal... until the Indian god confesses that he screwed up and informs the husband that [[MisterSeahorse he's now pregnant]]. The film was an adaptation of Thorne Smith's 1931 novel, which was later adapted as a short-lived TV series in 1978.
* ''Film/{{Zerophilia}}'', directed by Martin Curland, concerns a young man named Luke who obtains the rare Z chromosome after a sexual encounter with a mysterious woman which turns him into a zerophiliac, a person whose sex changes with the act of sex (either by your lonesome or with another person). Sex with another zerophile induces [[ShapeshifterModeLock mode locking]].
* Several movies have used the same basic plot, wherein a womanizing playboy dies and [[{{Reincarnation}} is reincarnated ''as'' a woman]]:
** In ''Film/GoodbyeCharlie'', Tony Curtis becomes Debbie Reynolds.
** ''Cleo/Leo'' wasn't a porn movie, but it was made by a cast and crew of adult film veterans, and explores the sexual aspects of the transformation more frankly than most movies of this type.
** In Creator/BlakeEdwards' ''Film/Switch1991'', Perry King becomes Ellen Barkin.
** In ''Film/{{Sam}}'', Brock Harris becomes Natalie Knepp. Unlike the other versions Harris's character doesn't actually ''die'' (he is transformed into Knepp thanks to a mysterious drink he got at TheLittleShopThatWasntThereYesterday) but otherwise the film follows the same plot.

* ''Film/TheHotChick'' has a lowlife thief (played by Rob Schneider) accidentally swapping bodies with a snotty teenage girl.

* In the sex comedy ''Film/SexualChemistry'', a chemist's attempt to create a sex-enhancing drug backfires, turning him into a woman. He keeps changing back and forth over the course of the movie. HilarityEnsues.
* ''Film/SomethingSpecial'' (a.k.a. ''Willy/Milly'') is a rare female-to-male example, where a tomboyish teenager wakes up to find herself magically transformed into a male after making a wish during a solar eclipse.
* In ''Film/{{Splice}}'', Ginger, one of the two [[LEGOGenetics transgenic creatures]] created by Clive and Elsa, turns from female to male due to hormonal changes, and fights Fred (the other transgenic creature, who was male from the start) during a press conference that unleashes [[BloodSplatteredInnocents a shower of blood]] on the front row. [[spoiler:This turns out to be {{foreshadowing}} for similar changes in [[CuteMonsterGirl Dren]].]]
* In ''Film/JurassicPark'', the all-female dinosaur population gradually has some of them turn male. This is due to the fragmented dino DNA that created them being "repaired" with the DNA of a frog species that can change gender.
* ''Film/ItsABoyGirlThing'' gives bickering teenagers Nell and Woody a FreakyFridayFlip via a {{Mayincatec}} God.
* The Hong Kong action comedy ''Film/HolyWeapon'' features this towards the end. In the movie, [[OldMaster Ghost Doctor]] creates "Feminine Wine" for an intersexed woman, warning that if a man drinks even just a drop, he'd become a woman. They then have the male IdiotHero Ng Tung look after the brew without telling him what it is or what it does. Ng Tung unwittingly drinks the brew, thinking it's a nutritious soup. Then [[ItMakesSenseInContext his penis tells him]] that from now on, whenever his body gets wet, he'll turn into a woman. He'll become a man again when he dries his body. [[spoiler:This becomes useful during the final battle, when the BigBad's {{Mooks}} throw Ng Tung into the river as a sacrifice, only for him to emerge fully female, complete with {{Gainaxing}} and GirlishPigtails. Thus, he/she becomes the Seven Virgins' EleventhHourRanger (since one of them is trapped in a net throughout the battle).]]
* In ''Film/{{Orlando}}'', the title character wakes up as a woman halfway through the movie and is completely unfazed by the change. Which is more than you can say for everyone around her.
* In ''Film/TheGamersDorknessRising'', Luster is constantly switching between female and male due to her player forgetting and being reminded of her true gender. It's [[LampshadeHanging lampshaded]] several times, both in-character and out-of-character.

* In the movie ''Film/ScoobyDoo'', the gang's souls switch bodies at one point, causing Fred, in Daphne's body, to remark "Hey, I can look at myself ''naked!''" Daphne was ''not'' amused.
* In the sequel, ''Film/ScoobyDooMonstersUnleashed'', Shaggy drinks an unknown potion and transforms (from the neck down) into a woman, for a little while. This turns out to be a ChekhovsGun as [[spoiler: the villain was using it to disguise his identity]]
* The Australian feature ''Film/{{Dating the Enemy}}'' takes the classic set up of a bickering couple who get an opportunity (in a FreakyFridayFlip) to "see the world through the other's eyes".
* In ''Film/{{Gozu}}'', a dead Yakuza brother returns as a young attractive woman with no explanation given why.

* The movie ''Film/JumanjiWelcomeToTheJungle'' is about a group of teenagers who get sucked into a video game and are stuck in the bodies of the avatars they chose. The group's wannabe AlphaBitch, Bethany, ends up selecting [[GenderBlenderName Professor Shelly Oberon]], whom the game describes as a "curvy genius" (which she assumes means "HotScientist"). To her surprise and horror, Shelly Oberon turns out to be an overweight middle-aged man (played by ''Creator/JackBlack''). Hilarity ensues.
* The sequel, ''Film/JumanjiTheNextLevel'', has several examples:
** Spencer re-enters the game, hoping to regain the confidence he had as Dr. Smolder Bravestone. However, the game sticks him with the avatar of the female [[ClassyCatBurglar thief]] Ming Fleetfoot. To add insult to injury, Fleetfoot has essentially the same strengths and weakness as his normal, male self: high intelligence and cleverness, but no physical strength or fighting skills -- and a pollen allergy to boot.
** Later, Spencer's grandfather, Eddie (Creator/DannyDeVito), ends up in Fleetfoot's body; he's too amazed by the fact that he has ''hair'' again (being bald in the real world, and having spent much of the film as the extremely strong, but bald, Bravestone) to be concerned about being female.
** "Fridge" initially gets stuck as Professor Oberon (which, as the group's resident jock, he is ''not'' happy about). However, an electric shock causes him to briefly swap avatars with his teammate, Martha, putting her in Oberon's body and him in the body of [[ActionGirl Ruby Roundhouse]] (which he finds ''far'' preferable). After he admits that the breasts are a nice bonus, Martha snaps at him to keep his hands off her body; Fridge replies that [[ManIFeelLikeAWoman feeling himself up]] was the ''first'' thing he did.
** Bethany, who enters the game long after the others, ends up with the only remaining avatar: Cyclone, a [[ForcedTransformation horse]]. After that, she's only too happy to be swapped into Professor Oberon's body (again).
* In the first and second ''Film/{{Phantasm}}'' films, the Tall Man is able to transform himself into a woman in order to lure people in to be killed.
* ''Film/TheAssignment2016'': Frank gets a full sex reassignment via {{magic plastic surgery}}, and the result is him going from physically male to looking like Creator/MichelleRodriguez (who played him in both cases).
* In the Italian comedy ''Film/LeComiche2'' the two main characters cause physical and psychological damage to many people throughout the multiple episodes composing the movie. The main recurring victim ({{chew toy}}) is a male individual that undergoes an undesired breast augmentation at the end of the first episode. Later he has an accident of {{comedic underwear exposure}}, revealing he is wearing a bra supporting large breasts. As the movie progresses, he ends up in a hospital and he is given a sexual reassignment surgery. Finally, completely turned into a woman, she is an odalisque in a harem, seemingly accepting her new role and gender ({{Second Law of Gender Bending}}).
* Another rare female to male version, in the 2015 Swedish film ''Girls Lost'' (''Pojkarna'') - based on a Young Adult novel - three teen girls who suffer from misogynistic bullying at school find a mysterious seed that grows into a flower that can turn them into boys if they drink its nectar, though it wears off by morning. One of the teens is heavily hinted to be a trans man and finds the situation liberating and becomes addicted to the nectar, whilst the other two are intrigued and find some more confidence as boys admit they'd rather stay as girls.

* ''Film/{{Freaky}}'': For the Butcher and Millie via FreakyFridayFlip. He's an adult man, she's a teenage girl, and both find the change discomforting (he adjusts faster).
* ''Film/TheBrothersGrimm'': [[TransformationHorror A long and horrifying scene where Sasha's face gets stolen by a mud creature, chasing her until it catches up to her and merges with her turning her into a Gingerbread Man]], ironically being dressed as a boy for most of the movie and ends up being transformed into one, nearly at the end she gets transformed back into a girl when the Queen is about to sacrifice her for the ritual.

%% * Every single work by author Creator/AlysonBelle, usually with an LGBTQ twist thrown in the mix as well.
* Averted in ''Literature/{{Masques}}''; Aralorn is a shapeshifter who can change into, among other things, a ''mouse'', but she can't do men. Whenever she needs to look like a man, she goes for an androgynous woman instead. It is implied it is mostly her own unwillingness to do cross-gender shapes that is responsible for this; she has to practice for the magic to work properly.
* The premise of the ''Literature/SexGates'' trilogy by Darrell Bain & Jeanine Berry: Portals appear at random all over the world. If they don't make you vanish when you pass through them, they cause you to emerge as a [[AttractiveBentGender flawlessly healthy 18-year-old... of the opposite gender]]. HilarityEnsues. Well, not so much hilarity as ''extreme'' societal upheaval. The Middle Eastern response -- namely, chucking various imams and abusive husbands through, was ''highly'' [[TakeThat amusing.]] Other aspects, like the TransEqualsGay implications of homosexuals lining up for their Gender Bender or women eager for the chance to be the "superior" sex, may be less amusing.

* Princess Ozma of L. Frank Baum's ''[[Literature/LandOfOz Oz]]'' series was magically changed into a boy as a baby, and grew up this way [[spoiler:(under the name "Tip")]] until the spell was discovered and she was changed back. The fact that their personalities are total opposites has led to at least ''a century'' of many fans trying to explain this away via or {{Retcon}}. {{Lampshade}}d when the Gump mentions he thought Ozma was nicer when she was a boy. The Gump also mentions that Ozma didn't much like him talking since she changed her name.
* Creator/LoisMcMasterBujold's ''Literature/VorkosiganSaga'':
** ''Literature/ACivilCampaign'' has, as a significant character, Lord Dono Vorrutyer... formerly ''Lady Donna'' Vorrutyer.
** Not to mention Bel Thorne the hermaphrodite, who, while technically both male and female, is quite fond of switching its perceived gender around just to mess with people's heads.
* A common motif in Creator/JackChalker books. Usually it's a) to show just how indomitable the transformed character is, and b) to showcase the [[MoralEventHorizon sheer evil]] of the individuals responsible... and make their eventual {{Karmic Death}}s--or at least karmic ''comeuppance'' -- all the more appropriate. Appropriately enough given how deeply Chalker is associated with this trope, his immortal hero Nathan Brazil's last act in Chalker's final book is to "accidentally" inflict a Gender Bender on ''himself''; it may have been a FreudianSlip on the character's part.
* Creator/NeilGaiman has played with this trope a few times:
** In ''Literature/{{Stardust}}'', Bernard the goat herder is first turned into a goat by the Big Bad, and later into a woman to pose as her daughter.
** The short story "Changes" has Gender Bending as its premise, as a cancer cure called Reboot that works by altering the patients DNA has the side-effect of transforming the patient into a fully functional and fertile member of the opposite gender. The story takes place over several decades, analyzing how society would react to the effects introduced by such a drug. The middle eastern response is especially horrific, in contrast to the ''Sex Gates'' example above.
* The entire basis of the plot of James Alan Gardner's novel ''[[Literature/TheLeagueOfPeoplesVerse Commitment Hour]]''.

* Creator/UrsulaKLeGuin's ''Literature/TheLeftHandOfDarkness'' is basically "what if everyone were of negotiable sex".
* An important point in Creator/CharlesStross' ''[[Literature/{{Accelerando}} Glasshouse]]'' is that the characters come from a society where Gender Benders are ridiculously easy. It's implied that most people tend to settle on a particular gender for the sake of convenience; the protagonist is usually male, but doesn't even remember what his original body's gender was.
* This is pretty much the point of Virginia Woolf's ''Literature/OrlandoABiography''.
* The middle part of ''[[Literature/TheElminsterSeries Elminster: The Making of a Mage]]'' is basically "The Making of a Priestess". When Elminster agreed to serve the goddess of magic, he finds himself teleported without any warning to an unknown location and turned into a lass-"to see the world through the eyes of a woman" ([[spoiler:and to hide him from [[TheMagocracy Magelords]] out for his blood]]), having ''nothing'' on her save half of a broken ancestral sword, and no magic abilities save innate magic vision. Later he learned the spell himself. In the next book, Mystra pushes a silent sex-inverting spell into his mind, to give him a way to circumvent controls built into his body. Which he used while embraced... er... [[KindRestraints restrained]] by his current LoveInterest, no less. "Well met. Call me Elmara, please!"
* Several ''Literature/{{Animorphs}}'' characters do cross-gender human morphs. Marco morphs the female governor in one book, and presumably, Cassie and Rachel morph male when they acquire sailors for a mission on an aircraft carrier. Rachel's eagle, acquired between books 1 and 2, is male, as is the grizzly bear that she acquired in book 7. Marco acquires a girl wolf in book 3, while Jake, Marco and Ax all become a female skunk in book 9, and Rachel and Cassie (along with the four boys) acquire a male polar bear in book 25. Tobias acquires Taylor, a human female, in book 43. In ''[[{{Prequel}} The Hork-Bajir Chronicles]]'' Aldrea (who is female) morphs Alloran, the future host of the below-mentioned Visser Three.
** This is the plot point of one book, where Visser Three morphs into a female human and masquerades as Tobias' cousin Aria [[spoiler: in order to capture him after he is read a letter from his father, Prince Elfangor]]. Visser Three spends most of his time in this form during the book, just in case Tobias is morph-capable and spied on him in animal form; Tobias only figures out the trick because Visser Three is too good at acting like a human woman [[spoiler: and checks "her" hair in a mirror, which is automatic for most women but not necessarily for one who's been living in Africa for years, which was what "Aria" was supposed to be doing for most of Tobias' life]].
* In ''Literature/TheWheelOfTime'', after [[spoiler:Balthamel]] dies, he is resurrected as the beautiful woman, [[spoiler:Aran'gar. This is situational irony, because Balthamel had been known as a tremendous lecher]].
* Many characters in ''Literature/TheMemoryWars'' remember past lives, and several have explicitly lived some lives as genders other than their current one. In ''Locked Within'', one of Nathan's key memories [[spoiler: is of his life as Katherine O'Reilly, a renowned monster-hunter whose lover was hanged, having been framed for murder]].
* In the 1952 French short story ''Héloïse'' by Marcel Aymé, the thirty-five-year old Martin turns into the title female character each evening, causing her to clash with his wife. Things get complicated when Martin falls in love with Héloïse, and when Héloïse gets out and sleeps with other men. At the end of the story, Martin's wife tells him that Héloïse is pregnant; and that Martin[=/=]Héloïse will give birth to a boy who will soon turn into a girl. Ouch.
* In Creator/WalterJonWilliams' {{Cyberpunk}} novel ''Hardwired'', the rich elite often transfer their consciousness to a younger body to extend their lives. The book introduces one who used to be an elderly man but got himself transferred to a young, female body to live his sexual fantasies of submission and vulnerability. S/He gets what s/he asked for and more when [[spoiler:Sarah, one of the protagonists seduces, and then murders him/her.]]
* In the novel ''Cycler'' by Lauren [=McLaughlin=], the main character Jill changes into a boy, Jack, before (or during) her period.
* In the ''Literature/{{Safehold}}'' series by David Weber, Nimue Alban (or, specifically, the robot with Nimue Alban's personality) crafts the persona of Merlin Athrawes. Her robotic body has the [[PowerPerversionPotential capability to shift genders]], which she uses to complete the image.

* In ''Literature/AndEternity'', Orlene is temporarily transformed into a man to make a point.
* The protagonist of ''Literature/DeathsMaster'' by Creator/TanithLee is a WonderChild who can switch at will between male and female.
* Creator/TanithLee also explores gender-switching in her ''Literature/BitingTheSun'' series, where changing bodies and genders is almost as easy as changing clothes. Officially you're only supposed to change once every thirty days, but nobody pays attention to that.
* In Judith Tarr's ''Avaryan Rising'' series, a young nobleman from one nation is turned female—by way of a dangerous magic ritual—so that s/he can marry the prince of another nation for diplomatic reasons. [[AttractiveBentGender Predictably, she's smoking hot in female form]].
* [[spoiler: Malahide]] in the ''Literature/{{Havemercy}}'' series.
* In the ''TabletopGame/VampireTheMasquerade'' series, Sasch Vykos was once Myca Vykos, but changed genders via Vicissitude.
* ''Literature/MagnusChaseAndTheGodsOfAsgard'', Alex Fierro might fit both versions of this trope. She's gender fluid, and is also implied to be a SexShifter whenever her identity changes.
* Polyjuice Potion in the ''Literature/HarryPotter'' series has been stated to do this, although we never actually learn how far the gender bending goes. Some examples in the series:
** In ''[[Literature/HarryPotterAndTheGobletOfFire Goblet of Fire]]'', Barty Crouch, Jr. escaped Azkaban by swapping identities with his mother via Polyjuice Potion.
** In ''[[Literature/HarryPotterAndTheHalfBloodPrince Half-Blood Prince]]'', Crabbe and Goyle take the Polyjuice Potion many times to pose as first year girls, in order to allow Malfoy to repair the Vanishing Cabinet.
** In ''[[Literature/HarryPotterAndTheDeathlyHallows Deathly Hallows]]'', in order to get Harry out of Privet Drive, five of his friends ([[MyFriendsAndZoidberg and Mundungus Fletcher]]) disguise themselves as Harry using Polyjuice potion. Two of the decoy Harrys are Hermione and Fleur. Amusingly, Fleur isn't too happy about being Harry; after the transformation is complete, she tells Bill not to look at her because she's hideous.
* In the Creator/MercedesLackey and Creator/PiersAnthony novel, ''If I Pay Thee Not In Gold'', there be demons. They look ordinary, if beautiful, and with awesome eyes, but normal for normals where they come from. What distinguishes them is immortality... and gender bending when they have sex. Imagine losing your virginity and learning that. How can demons die? By being killed, or if a partner is unfaithful.
* In ''Literature/WarriorCats'', the others often can't keep up with the massive cast, especially characters who were created just to flesh out the allegiances, so this has happened to several characters (most notably Sedgewhisker and Rowanclaw).
* In ''[[Literature/GarrettPI Dread Brass Shadows]]'', Garrett encounters a couple of characters who magically disguise themselves as other people, sometimes of the opposite sex. Finding the corpse of one of them, he's squicked out to discover that the dead man is reverting from his assumed female form to his natural one only gradually, from top to bottom.
* In ''Literature/{{Sphere}}'', the protagonist tests out his reality-warping abilities on some nearby mummified corpses, changing men to women and women to men. That's right: gender-bending ''corpses''.
* In Creator/CordwainerSmith's Instrumentality short story, "The Crime and the Glory of Commander Suzdal," the Arachosians [[spoiler:made their women into man-like things (klopts) on purpose]]. It was a FateWorseThanDeath.

* A... rather awkward version happens in ''Literature/GalaxyOfFear: The Brain Spiders''. Jabba the Hutt has a weird gambit going where he removes the brains of major criminals, turns their bodies in for the reward money, and installs their brains into the bodies of hapless people in his fortress - ''their'' brains end up in [[BrainInAJar spider droids]], which sucks. A particularly large and brutish killer's intended body is set free, so he gets put into Tash Arranda, a not-yet-fourteen-year-old girl. At first he doesn't mind much, but soon he starts complaining to Jabba about it. Jabba is just amused. The narration, once the point of view character figures it out, calls him "he".

* In ''Literature/TheDollmaker'', Stephen [[spoiler: is reincarnated into an artificial female body, and in doing so, all of his flaws are stripped away. That's the happy ending.]]
* Ian Covey, the doppelganger in ''{{Literature/Everyman}}'' takes the form of two different women.
* In the ''Franchise/{{Dune}}'' series, the Tleilaxu Face Dancers were shape-shifters with the ability to change gender.
* For the people of Greg Egan's novella ''Oceanic'', who otherwise seem mostly human, coïtus ends with the penis transferring itself to the other partner. The protagonist has one sibling; each of their parents is mother to one and father to the other. (The people's origin legend suggests that their ancestors had been disembodied software for a long time before creating their bodies.)
* K. Lynn's ''His Womanly Ways'' employs the body-horror route with a gradual genderswap for the main character. Womanizer gets cursed to know what it's like for a woman, and he slowly starts turning into one. The change is [[FirstLawOfGenderBending found to be permanent]], but the novel subverts the typical genderswap tropes by utilizing an underlying transgender theme.
* In the novel ''Girl'' by David Thomas, Bradley Barker (the main character) goes into hospital to have his wisdom teeth removed and is given a sex-change operation by mistake. [[FirstLawOfGenderBending The change is permanent]] and the main character [[SecondLawOfGenderBending does get used to being a woman]] [[ThirdLawOfGenderBending through typical dress and actions]], but the novel is surprisingly respectful of the transgender topic despite the comedic plot set-up.

* One of the titular ''Literature/MidnightsChildren'' can do this by immersing themselves in water.
* ''Literature/LordOfLight'':
** The Masters of Karma regularly reincarnate ordinary individuals in bodies whose sex differs from the individual's gender, especially if they want to use it as a punishment. Those who have ascended to the Heavenly City, however, get to choose their sex with each new body; when he first confronts Sam [[ItMakesSenseInContext and is forced to answer Sam's questions about the gods while sinking into quicksand]], Yama mentions that the current Goddess of Dance at the time had previously been a God of War.
** The original Brahma was a lesbian whose birth name was Madaleine; she [[TransEqualsGay chose to get transferred into a supremely masculine body]][[note]]it is likely that Zelazny didn't see the UnfortunateImplications in this[[/note]] time and again, but still had a nagging fear of not being man enough to attract women.
** When [[spoiler: Kali]] is asked to become the new Brahma, she agrees, even though it means [[spoiler: breaking off her marriage to Yama in the middle of their honeymoon]]. She is later reincarnated as a female again, under the name [[spoiler:Murga, who Yama introduces to Kubera as his daughter]].
** Helba, the Monarch of Thieves, alternates sex with each incarnation. When Sam approaches her to steal his belt back from the museum of the gods, she initially refuses, stating that she doesn't perform thefts when female.
* In ''Literature/MufarosBeautifulDaughters'', [[spoiler: The king poses as an old woman as part of the SecretTestOfCharacter he gives Manyara and Nyasha]].
* ''Literature/TheMachineriesOfEmpire'': The [[GalacticSuperpower Hexarchate]] has a NonHeteronormativeSociety and the {{Magitek}} to make any medical transition a trivial affair. When Cheris first wakes up after becoming a WillingChanneler to [[VirtualGhost Jedao]], she sees [[MirrorReveal his reflection in place of hers]] and initially assumes that her superiors have changed her sex for some reason.
* In ''Literature/PrincessHolyAura'', a 35-year-old man's choice to become a 14-year-old girl is one of the key points of the story.
* In ''Literature/ImInLoveWithTheVillainess'', [[spoiler:Prince Yuu]] suffers from this after he was accidentally infected with a gender-bending disease when he was young. Complicating matters is that he wants to return to his birth gender, but his mother doesn't want him to endanger his chances at the throne. [[spoiler:He eventually cures himself of the disease, and happily lives on as a female.]]
* ''Literature/TheQueenOfIeflaria'': A common magic in the setting, and why no one is ''too'' worried about the heir of two women. The problem is that you have to want the Change for it to stick; actual transsexuals are easily able to Change permanently, but there is some doubt whether either Esofi or Adale will be able to maintain it long enough to produce an heir.
* ''Literature/RebornToMasterTheBlade'' the [[TheGoodKing Hero-King]] Inglis wishes for reincarnation on his death bed to the Goddess who watched over his life, as he regrets never truely becoming the best swordsman in the world due to his duties as king. He is reincarnated as the daughter of the Captain of the Knights decades in the future.
* ''Literature/TheReincarnatedVampireJustWantsToEnjoyHerNewLife'' has the main character, Scarlet, start out as a male disembodied spirit and end up reincarnating as a female vampire.
* ''Literature/DemonSwordMaiden'' starts the story with a very, very effeminate boy getting confessed to by his older, taller, and very busty crush. He reciprocates, and then the plane they're flying in crashes, killing them both. The next moment, he wakes up in her body, while her soul is stuck in a magic mirror. The prevailing conflict in the story is him trying to find a way to get her out and give her her body back, becoming a powerful demon-slaying samurai in the process...
* ''Literature/TheFourProfoundWeaves'': The first of the titular magical arts weaves [[InsubstantialIngredients the wind]] into a "carpet of change", which can transform a person's body to match their inner self. UsefulNotes/{{Transgender}} people in the desert nomads commonly use these when they transition: one of the protagonists did as a young child, while the other kept his carpet for forty years and finally used it in his sixties.
* [[https://lycelia.com/s/egj "PMS Zombies"]] shows the troubles of a teenage boy unwillingly turning into a beautiful girl right as all the women in town turn into man-hungry cannibal zombies.

* ''Literature/ChakonaSpace'': Skunktaurs, which were a competing project to the [[{{Hermaphrodite}} chakats']] development, can switch between male and female. They're born male then change to female for the first time at puberty and can trigger the change at will from then on.
* ''Literature/MagicalGirlPolicy'': Rob is revealed to be Spirit Guard Serenity, and will be permanently transformed into a girl upon transforming the first time.

** The Hindu view on reincarnation allows for gender to be changed during the cycle. So a man who dies could be reincarnated as a woman, and vice versa.

* ''TabletopGame/{{Pathfinder}}'':
** The Elixir of Sex Changing is a relatively cheap way to change one's biological sex; unlike similar magic, it only works on a consenting subject, is permanent, and can't be {{Dispel|Magic}}led. One NPC in the ''Wrath of the Righteous'' adventure path is mentioned to have undergone gender reassignment with the potion.
** The game includes ''TabletopGame/DungeonsAndDragons''' Girdle of Opposite Gender, whose sex-changing effect is framed as a {{Curse}} and lasts until {{Dispel|Magic}}led.
** The Harrow Deck of Many Things CardsOfPower include a "Clone" card, which, when drawn at random, causes the drawer to change sexes.
** There is also Anderos salve and Mulibrous tincture, though they only work on secondary sex characteristics (so not gentialia) they are much cheaper (5gp each) but require twice per week use over the course of months to show full results. Anderos salve makes the user more masculine, Mulibrous tincture makes the user more feminine and together they make the user androgynous. The changes become permanent after 6 months.
* In the {{Animesque}} TabletopGame ''TabletopGame/TeenagersFromOuterSpace'', the Boy/Girl Gun is a standard item, and one alien power replicates the effect on the user. It's probably best to not speculate about the non-standard items.
* ''TabletopGame/{{Mekton}} Zeta'' cites this as a sample use of the "Special Effect Weapon" Stupid Mekton Trick.
* In ''TabletopGame/{{GURPS}}'', "Hermaphromorph" is a cheap (5 point) Advantage that allows a character to change sex at will.

* ''TabletopGame/{{Scion}}'' has an Epic Appearance perk mentioned in the God rulebook, that allows the Scion to change everything about his/her body, including gender, and becoming a hermaphrodite. They're even fully fertile.
* ''TabletopGame/UnknownArmies'' provides players with at least three permanent ways to magically change their character's sex, a few more temporary methods, and several canonical one-off accidents. In addition, since the game is set in the PresentDay, [[UsefulNotes/{{Transgender}} gender-reassignment surgery]] is also available -- and explicitly ''necessary'' for correcting some magical accidents.
* In ''TabletopGame/Warhammer40000'', the Chaos God [[EvilisSexy Slaanesh]] typically uses the pronoun "He". However, he in fact is neither male nor female yet both at the same time (the Eldar who created hir use "She Who Thirsts"). He assumes whatever form the person viewing him would find most attractive, which means that he can either be a fully functioning male, female, hermaphrodite or whatever else a person finds attractive at any given time. His traditional form is a weird sort of hermaphrodite, being split down the middle vertically as a woman on the right side of the body and a man on the left. The same goes for his/her breeds of daemon, including the more animalistic ones, and the cultists s/he shows favor to.
* ''TabletopGame/{{Cthulhutech}}'' has a First Order (low level) spell of the Transmogrification style called "Beckon the Unexpressed". Its other names are Aphrodite's Touch and Gender Bender, which sums it up fairly well. By magically "tweaking" the target on a chromosomal level, the target switches gender in a painless fashion over a period of three days. The ritual is legal (though it requires a permit), and implicitly a person "switched" in this manner is fully functional in their new role -- the spell has replaced [[UsefulNotes/{{Transgender}} surgery]] for gender reassignment. Because the ritual only requires an effigy of the target and not the target's actual presence, it's noted that immature occultists like to use it for pranks. Especially in college. As well as merely switching men to women and vice versa (the change is permanent, but easily undone with a second spell), casters with sufficient occult skill and knowledge of physical medicine can use this spell to create different varieties of fully functional gender ambiguities (people with the body of one sex and the reproductive organs of the other, or a "true" hermaphrodite with the body of one sex and the organs of both).
* ''TabletopGame/TwilightSparklesSecretShipficFolder'' has four cards that change a pony's gender (although one is titled Rule63 and another has the name DudeLooksLikeALady so this could be half subverted).

* ''TabletopGame/{{Shadowrun}}'': Generally averted; while the setting offers fully functional sex change procedures, this is usually for genuine UsefulNotes/{{transgender}} people rather than this trope. However, notable shadowrunner and ConspiracyTheorist Plan 9 has had so many sex change operations, switching back and forth from male to female, that they claim they can't remember what they started out as anymore.
* In the [[TabletopGame/OldWorldOfDarkness Classic]] and TabletopGame/NewWorldOfDarkness:

* In ''WebAnimation/DadEnlightenment'', Hank changes into Heather, a pale female version of himself, at one point.

* One skit in the eleventh ''WebAnimation/{{Asdfmovie}}'' has a man telling a crying boy that "boys don't cry"; the crying boy then spontaneously grows breasts, as if changing into a girl.

* In ''WesternAnimation/{{Archer}}'''s Sterling Archer's dream in season 8, Pam became a man. He almost had a future with a bunch of trafficked Chinese women.

* ''WesternAnimation/LloydInSpace'' hangs an entire episode on a one-shot who's "Neither Boy or Girl" and of a species that chooses its own gender at the age of thirteen. They do at the end of the episode; however, they look no different from before. But we'll never know which gender they chose.

* In one episode of ''WesternAnimation/JohnnyBravo'', "Witch-ay Woman", a fortune teller tries to teach Johnny a lesson in showing women respect by turning him into one. [[spoiler: He may or may not have only been mesmerised into thinking he was a woman]]
* In an episode of ''WesternAnimation/OzzyAndDrix'', when Ozzy accidentally ends up in the body of a girl instead of his usual (for the TV show) human host Hector, Ozzy's own sex starts changing. He very nearly becomes completely female, but does not lose his beard.
* ''WesternAnimation/CodenameKidsNextDoor'':
** "Operation: F.U.T.U.R.E." has a young misandric lass who gets a "Girlifyier" gun from her alternate future self. Cue the dystopian alternate future, where Numbuh Four [[spoiler:(minus his hand)]] is the only adult male left. He becomes the leader of the Boys Next Door; with the help of Numbuh Three's granddaughter develops a "Boyifyier", and a sex-swapping battle ensues. [[spoiler:He manages to evade this future by going back in time and changing things]].
** "Operation: C.A.R.A.M.E.L.", where Numbuh Five's candy-hunting rival, Heinrich von Marzipan, [[spoiler:turns out to have once been a girl, who was transformed into an ugly boy through some magic caramels which took away ''her beauty'']]. And this is the reason he has such a big grudge against Abby.

* In the ''WesternAnimation/DannyPhantom'' episode "Attack of the Killer Garage Sale", there is a very brief scene (literally just a second) where Technus turns Danny into a blonde supermodel with a ghostly remote control.
* ''WesternAnimation/JohnnyTest'':
** In one episode, an invention turns Johnny into a hot girl for about 5 seconds, then overloads and turns him into a hulking female monster. She turns back to normal a few seconds later.
** In a later episode, an invention turns Susan and Mary purple, then huge-headed, then male. They revert after a while, but it was AllJustADream anyway.
** Another episode has Johnny and Dukey turn into female rollerbladers to win a roller derby.
* The last episode of ''WesternAnimation/AdventuresOfSonicTheHedgehog'' has Sonic and Tails transported into various fairy tales. In the first one they visit, they're Hansel and Nettle (Gretel). Sonic is Hansel... and Tails is Nettle. Disturbingly, four-year-old Tails gets boobs as a girl. He even lifts up his dress to verify it: "I'm a girl!"

* In the ''WesternAnimation/BatmanBeyond'' episode "Out of the Past", [[spoiler:it turns out Ra's Al Ghul has [[GrandTheftMe taken over his daughter's body]]]], which is even more disturbing than it sounds. Ra's can speak with his Ra's voice, even though he has the body of a woman... the transition is outright creepy. Furthermore, Ra's still acts in a very effeminate manner, despite the voice. Remarking on the situation:
-->'''Terry:''' Lady, that is the sickest thing I've ever seen. You're creeping me out!\\
'''Bruce:''' You? She ''kissed'' me.
* In ''WesternAnimation/ThunderCats1985'', the evil Mumm-Ra has transformed into a female on at least four separate occasions:
** In "The Garden of Delights", Mumm-Ra assumes the form of a faerie queen to lure Tygra into a trap.
** In "The Mask of the Gorgon", he turns into Nada of the Warrior Maidens.
** In "The Queen of Eight Legs", Mumm-Ra turns into a tiny female fairy called Diamondfly.
** In "The Astral Prison", Mumm-Ra transforms into the Nether Witch, which is implied to be an alternate identity he regularly assumes.
* ''WesternAnimation/SpiderManAndHisAmazingFriends'': In "Seven Little Superheroes," the Chameleon, a male villain, displays his shapeshifting powers by assuming the forms of female heroes Shanna The Jungle Queen and Firestar (as well as several male characters.)
* Hogatha in ''WesternAnimation/TheSmurfs1981'' switches genders when she becomes a Smurf in "The Fake Smurf".
* ''WesternAnimation/TUFFPuppy'' has [[ShapeShifting The Chameleon]], who wears an AppliedPhlebotinum suit which allows him to transform into anything, including into a woman [[spoiler: at least three times, once as Bunny the Real Estate Agent and again as [=FiFi=] Oui Oui, and as the [[RecurringExtra little chipmunk girl]].]]
* In ''WesternAnimation/{{Wakfu}}'', season 2, episode 10, Evangelyne and Amalia temporarily turn male thanks to a magic potion to be able to play Gowbbowl in the misogynistic town of Brâkmar.
* The opening to an episode of ''WesternAnimation/{{Arthur}}'' had Arthur wondering how life would be easier if people could turn into other people should the need arise. The Imagine Spot shows Arthur about to be caught by his mother for making D.W. mad, so he transforms into his ''grandmother'' and confuses his mom.

* ''WesternAnimation/TheSimpsons'':
** At the end of the episode "[[Recap/TheSimpsonsS5E2CapeFeare Cape Feare]]", it's shown that Grampa apparently needs to take a type of medication to prevent this from happening to him.
** Towards the end of the "WesternAnimation/TreehouseOfHorror [[Recap/TheSimpsonsS15E1TreehouseOfHorrorXIV XIV]]" segment "Stop the World, I Wanna Goof Off", while Lisa was messing with a reality changing watch; Homer, Bart, Marge and Maggie are briefly gender bent.

* On one episode of ''WesternAnimation/SamuraiJack'', [[spoiler:Aku assumes the form of female warrior Ikra, to trick Jack into leading him to a way back to the past, so as to destroy it.]]
* ''WesternAnimation/RobotChicken'' had an episode parodying ''Manga/RanmaOneHalf'' where the Nerd finds a spring like the spring of the drowned girl at Jusenkyou. He jumps in imagining all the advantages of being a sexy girl. Unfortunately, it turned out that the girl who drowned there was fat, gassy and had a club foot, so you can imagine the payoff.
* In the ''WesternAnimation/AmericanDad'' episode "Stan Goes on the Pill", Stan turns into a woman after taking an experimental pill that was supposed to make it easier for him to listen to women. The female doctor giving him the pill told him that he was only supposed to take half, and naturally, he didn't listen.

* In ''WesternAnimation/TheLoudHouse'' episode "[[Recap/TheLoudHouseS1E23OneOfTheBoysATattlersTale One of the Boys]]", Lincoln enters an AlternateUniverse where his sisters are brothers. Later on, he briefly becomes a girl named Linka (in which the brothers are a ''[[BigBrotherInstinct whole lot]]'' nicer to).
* ''WesternAnimation/TheAmazingWorldOfGumball'' episode "The Job" involved Richard's reality-warping shockwaves hitting the other Wattersons and Larry, who switch genders at one point,
** A similar occurrence happens in the first part of ''WesternAnimation/GravityFalls'''s "Weirdmageddon" finale to Gideon and Ghost Eyes when they go through weirdness bubbles.

* In ''WesternAnimation/TheLegendOfVoxMachina'' episode 5 "Fate's Journey" when Vox Machina makes camp [[HandsomeLech Scanlan]] [[ChivalrousPervert Shorthalt]] the Gnome [[GirlsLikeMusicians Bard]] starts reading incantations from a spell scroll he has. He turns himself into a frog, a Unicorn-Hippocampus, and then into a Elven Woman (who basically looks just like him but female and tall). He approves of [[ManIFeelLikeAWoman his own looks in that form]], and leaves [[DumbMuscle Grog]] "Confused, and aroused".