I was on a long road trip back from my grandparents when my mom asked me where I wanted to eat. It was about 1 or 2 in the afternoon and I said I wanted breakfast. So as we were driving along she saw a sign for Denny's so she asked me if I wanted to go there because they have breakfast all day.
So I said sure so when we got there I went to the bathroom to take a leak, and after I got done I realized I had a massive hard-on. I remembered not seeing to many people in the restaurant so I went into the toilet stall and started jacking. As I was, I realized there was a person at the urinal. From what I could see, the shoes and the pants he had didn't look like anything a man would wear, although I could be wrong.
I looked under the door to see if he was positioned towards me or anything to make sure he didn't hear me or suspect what I was doing. He just kept standing there near the urinal. I thought he must be taking a long piss. I started to slowly jack off again and my cock was throbbing because only a few feet away from me was a stranger as I was jacking off. All of a sudden I heard a few grunts and then a sigh of relief. The guy outside was jacking off too. I almost erupted right then and there. I heard the water run and he walked out. I stroked a couple more times that was when I came so much. All over the door of the stall and on the floor. Once I cleaned off my dick, I left the cum on the floor and on the door. I opened the door and went out. I realized the stranger had not flushed the urinal. I looked in it and saw his cum dripping down it. I was kind of scared when I walked out, but no body looked at me funny or anything so I just sat down and ate my breakfast!