When I was a little teen I used to wank in a hard core porno cinema right in the middle of the front row, man-spread, shirt open and trousers round my ankles, poppers in one hand and a beer close at hand.
A lot of guys used to get excited at this, forget the film and either go down on me or feed me. Sometimes there was a not very orderly line up.
I chose the front row delberately because I wanted as much light as possible and only wanted guys who had nerve or were so fucking horned up they didn't care. It also mostly made a better fucking display than the rank Eastern European gay fuck films they showed.