Fetishes is sort of about how people are into such weird shit these days, that any of the “normal” stuff could be seen as weird.
I remember going to a bachelor party for a buddy of mine, and we had the classic “order a stripper for the boys” type of experience. I’m getting a lap dance and I do something like slap the strippers ass, and she slapped me across the face… hard enough to see stars and leave a mark. And… and I liked it.