Police officer, who was ex-stripper, bisexual, loves rough sex.... Totally non-porn setup.
Besides, you don't have anything sexual with your old boss in this game.
This game is probably worst possible case for your point, since all girlfriends you can have here are related to grand conspiracy.
I mean, obviously she has a backstory, but the stripper thing basically comes up and goes away pretty quickly, it's just a part of her old life. And again, her being a cop, that's just her day job that she isn't terribly passionate about, and it doesn't relate at all to her sex life- in fact she insists that you not ask her to bring that to the bedroom, which I really appreciate. She is
explicitly not a sexy cop. Compare to Ellie, where a very significant part of their initial relationship revolves around the "slutty secretary" setup. And can we really call being bisexual a kink anymore?
The fact that she enjoys rough sex despite otherwise just being a totally normal girlfriend for the rest of the day is what is unique to me.
And yeah, again, that was my point, all the girlfriends you can have are related to the grand conspiracy
except for Steph, who only gets involved because she's dating you and she's supportive. (unless something was revealed in the last year or so, haven't kepot up with the updates)