I was driving to work yesterday morning... I had stayed at a friend's house the night before and had to get up early to make the half-hour drive back to the city I live in to be to work on time. While I was driving, I decided to pull off at a rest area to take a piss. I got inside and I was the only one there, and was feeling a little horny. I finished pissing and shook my dick a couple extra times, and it got hard right away.
I was standing at the urinal stroking when another guy entered the bathroom. I stopped jerking and waited to see what he was doing-he walked past me and into the stall right next to my urinal, where he proceeded to sit down. Needless to say, I was still hard and wanted to finish what I started, so knowing that this guy was only separated from seeing me jacking off by a thin sheet of metal, I pulled on my cock for a good two minutes, lightly moaning and letting my belt make rattling noises as the back of my fist kept hitting it. I made a loud grunt and fired my load all over the top of the urinal, and let out a deep breath. I put my cock in my pants and left the bathroom, wondering if the stranger knew what I was doing... just thinking about it got me hard all over again, and I beat off again while driving.