I'm into BDSM since I was 16 and actually started practicing some stuff at 17. By 21 I already knew I really enjoyed stuff involving piss and a little scat.

I started dating this girl at 22 (she was 19) and we got along fine. With time, she found her role as a sub. I never wanted a total sub, so we cooked a deal: she'd only had to submit to my piss and scat fetish and the rest of the time she would only submit to me if she wanted and the way she wanted.

She never really cared for scat, but piss was her thing. At a given point she was only happy if she could drink one glass of my hot piss at dinner. As a sub she din't really had a say, but I noticed she'd get upset if I wouldn't piss inside her during sex.

As for the scat, I never wanted to do any of the exagerated stuff some people do. My thing was only with her first shit of the day, before we bathed and prepared to go to work. After she was done shitting I had to fuck her dirty ass and come and piss inside her hole. The day she was sick and puked because of the smell of her shit was the day I almost ripped her ass apart (even though I'm not into puke) and came like a horse.