LOL you want to hear something sick? I can actually tell who a guy is by his penis ALONE. I had a friend who was reviewing a flick for Cheri, and he had to pair which girl was with which guy in each scene. Even though there was a cast of performers, it didn't specify which guy was with who, and the guys' faces were never in the frame. So he would show me a scene, give me a list of the guys that were in the movie, and I would tell him which guy it was by simply looking at their penis. I was right EVERY TIME. Scary.