Based on the hentai comic carnage queen where Mary Jane Watson is taken over by the carnage symbiote.

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inside you are two werewolves, one is gay, the other one? also gay.

Captured heroine bound and raped while her arms and legs are trapped.

Slutty space pirate who later on becomes a permanent futanari.

Want your entire being to become a canvas for your master? LOOK NO FURTHER!

Woman from the hentai anime Urotsukidōji who's raped by a human that can transform into a monster.

Your boss Jonathan wants to transform you into a woman for a new policy

bareshade's shopkeeper is so madly in love with you, it hurts.

(MALE/GAY EDITION) You and your girlfriend have drunk a genderswap potion as a fun experiment, and while you grow short, small and soft, your girlfriend did the exact opposite. The effect only lasts for 24 hours, unless you drink another one within that timeframe...You should be fine, probably.

your boyfriend is losing himself to a curse, the only way to counter it is to be bred???