Its not a peeing site per se but newbienudes.com does have a lot of peeing photographs and videos if you search for them. You can see only the photos if you sign up as a free member and videos as well if you pay to join. I have not paid so i dont know how good the videos are but some of the pics are really good. Generally they claim to be amateurs and most of them are. Worth a look if you have some time.