For me, it was my college roommate, I was a freshman and he's in his 2nd year there. We were roommate for the Spring semester as I've recently transferred in and he is moved onto campus living. He was a straight, white, nicely built and masculine, a former high school football player, attractive with a rough looking face, but surprisingly warm and caring person. We both were very discreet while dressing, rarely in front of each other. I did noticed his cock head (VDL) when he had his long running pants on. Just when the weather started to warm up, around late April, one day, as I was sitting on a chair watching TV, he came in and started to changed his clothes in a rush to go somewhere. His closet was on my left and he's about 4 feet away from where I was sitting, I was completely stunned that he took of his pants and underwear off, I looked briefly toward him and finally saw his cock, which was nicely thick and circumcised and well kept bush. What still stayed in my mind was his cock head, just like I noticed when it bulged when had his running pants on. That was the only time, but I'm pleased.