There's Lilith's Throne, a mostly text-based sandbox game where some of the randomly generated NPCs have the "Unwilling Fuck-Toy" fetish, which means they will pretend to be raped by you whenever you initiate a sex encounter. AFAIK the dialogue is mostly identical to encounters where the player actually rapes somebody, except that they tend to climax a lot more easily than NPCs you're raping.
Like with all fetishes in the game, the player can also have it.