You may be looking for one of the following:
- Attractive Bent-Gender: A character who changes into the opposite gender is considered attractive because of it
- Mr. Fanservice: An attractive male character who's deliberately shown in scenes intended as sexual fanservice.
- Ms. Fanservice: An attractive female character who's deliberately shown in scenes intended as sexual fanservice.
- Trans Chaser: A cis character has a fetish for transgender or gender-nonconforming people.
- Trans Equals Hypersexual: Transgender or gender-nonconforming characters are depicted as having an Extreme Libido, no sexual boundaries, bizarre kinks, or otherwise over-the-top sexual proclivities.
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