I don't know if they're fetishes but I'm a sucker for uncut cocks. I'm trying to restore my foreskin at the moment because I love the look of it. I'm also into precum. Probably the only other thing that could be seen as a fetish would be the fantasy of cock to cock, frotting, or snoodling that I have. I haven't done it yet but I'd love to. The idea of two sensitive precum dripping heads rubbing against each other gets me so turned on.