Recently I have discovered Glory Holes. Yes, I've heard of them though never had the experience.

I was in a adult book store and went back and put my tokens into the machine. Soon fingers were coming through the hole in the wall. Being ignorant I place mine back. Shortly, though not short a cock was presented to me through the wall. I got nervous and decided to leave. The guy in the booth next to me asked why I was leaving.

I went into his booth to finish him off, which I did. Something about accomplishment when someone cums in your mouth.