Holding your pee to get off
Ok, so my partner and I have been together for over 4 years now. Just recently, she has shared with me that she likes it when another female has to pee really really bad and can't hold it any longer. She has even had me go all day without peeing, and had me drinking gallons of water to make my bladder even more full. She gets off on the fact that I have to go so bad that I nearly piss my pants. In a way, I find this erotic as well. She will make me get in the shower, turn the water on and hold it even longer. She has even threatened to put padlocks on the toilets! I also like to masturbate while I am peeing for her.