I'm straight and somewhat curious, never had a sexual experience with another guy, and I don't think I ever will. But last week was pretty close.
I'm a sophomore in college, but I still live in a freshman dorm. The showers here are (unfortunately) very conservative with curtains and stalls. But the lighting and tiles allow for a certain reflection on the floor. A few times I've used the reflection on the floor to look at the guy in the next shower stall, but could never really make out anything.
Last week, I tried to look over, and to my amazement, I saw the guy next to me pounding his rock hard cock. I couldn't believe it; it was crystal clear, like he was doing it right in front of me.
I immediately got hard, and started on myself. Watching him, I paced myself, as he was starting slow. As he got faster so did I, and my neck was becoming sore from the odd angle I was looking at the ground with. He kept going and going, and it was hard to judge how long his dick was, but being able to see it was enough. Suddenly he started pounding it really hard, and I knew he was about to blow his load.
I jerked like I never had before, letting the torrents of water hit the tip of my dick and rubbing my balls. Watching him, and feeling myself I couldn't help but groan when I shot a huge load. We were the only ones taking showers, and I like to think that he heard me.