I often retreat to the restrooms during the workday to j/o in privacy. One day, I went down to the Math building on campus. I went into the men's room and took a stall. Having been pent up for two days, I start j/o when someone comes in and gets in the stall next to me.
Low and behold, I start hearing some noise as if he's j/o...sure enough he was. He looked like he was 19 (a student). Well, by now he is moaning and j/o. I am not even sure that he was aware that I was next to him or that he was that loud. Well, needless to say, I join in and both of us are going at. By now he knows it! We are both moaning and jerking off...he finally lets out a loud sigh-then I do to.
That was the first time ever I had experience that with someone in the next stall. It was hot just envisioning him doing that next to me.