I don't often like jerking in public bathrooms but if I'm really horny then I will.
I work at a local gym and one day on my break I had to go to the bathroom. I went to the stall to take a leak and started thinking about if someone else was here I would peek at their dick. This turned me on so I quickly went into a stall (no one was in the bathroom) and got completely naked and started jerking quickly.
This got me very horny since someone could come in anytime. Well, someone did. A teenage man, about a few years older than me walked into the stall next to me. I was nervous but kept going fast. Soon I could feel it building up and my breathing got deeper and my heart was pumping fast.
My knees and feet started to shake and I shot the biggest load of cum I have ever had into the toilet seat, in the toilet, on the ground, and on the stall wall. This was the best orgasm I have ever had and it felt great to do that with someone else right in the other stall. When I did cum I made sure to moan loud enough to ensure that they would know what I did.
I only wiped up my dick and left the cum on the toilet seat, wall, toilet, and ground. I like to leave my cum there so that the next person can see it.
On my way out I felt great and another man walked into the bathroom and into my stall, looked inside, looked at me and I winked. I came in a few minutes later and he was gone but there were a lot more cum spots everywhere which turned me on so much that I jerked off in there again and still left it there for someone else. It was amazing!