I had a partner who went crazy if I peed while deep inside her anus.
It does take some doing to pee with a full erection, but I managed.
I suppose it was a bit like an enema for her, but it felt so good to feel her filled up
And to feel my own pee gush out against me.
But the best thing was to feel her pee while I was rubbing her clit at the same time.
Wet and messy, but unforgettably wonderful.