There was a game I played a couple of years ago based around the concept of a furry nightclub.
Problem I have with games like that one and Degrees of Lewdness as already mentioned in this thread is that you're dealing with an indy developer's fetishes. Like, in Degrees of Lewdness, the guy clearly has a foot fetish because there's always the option to use your feet on genitalia whenever you are having sex.
And in that furry nightclub game, I think the only character I was able to have sex with was my bird half-brother.
I mean, I'm playing these games because I want to indulge in my fantasies. It's completely fair that someone you've just met in a bar might not want to fuck you silly in completely perverted ways... but while I've played GTA V, I've never actually stolen a Jumbo Jet from my local airport and taken it for a joyride, either.
Vidya's supposed to be an escape from reality, I'm never going to molest the friendly fox I meet at my local bar, but in vidya, I'd like the option of a slut mode.