I knew this girl some years ago who, I found out, she loved to see a guy pee. I found out as I was at my house one day, she was visiting, as a friend, I needed to pee, so I went to the loo, started to pee, then I heard a noise, thought nothing of it but when I came out of the bathroom, she was standing outside the door. Laughing, I asked what she was doing. She went bright red and just said 'nothing' as she was smiling. Then it happened again, a few days later, so I asked her again, she said she liked to listen - so, I asked her if she wanted to come in with me next time and she agreed.. so we did that, she listened and watched, then she came in with me again and held it while I pee'd and I have never seen someone get so horny! We were just friends, but if I had to pee when she was around, we had some incredible sex after!