we just didn't get it.

My friend and I were watching a porn tape yesterday, it was on of Hustler's "Barely Legal" ones, and the first three girls all peed on camera. Only one in the bathroom though...we were just wondering what is up with that? Is that some kind of Hustler thing, or what? Do guys (the typical views, I'd assume) get into that more than we thought? Because he and I draw that line at that (and scat).