Although I have never had any real life experiences with partners, I don't think I'd love being peed on.
One thing I have always wanted to do was to pee on a guys lap. In my fantasy he would make me drink a bunch of liquid and not let me go to the bathroom. When I'm starting to get super desperate and uncomfortable he would make me sit on his lap in just my panties, slowly feeling and putting pressure my full bladder until I lost control and peed all over his lap and felt his erection through my soaked panties