I was interested in the story about the pornographic theatre in Buena Park, CA. It is now closed, but I went a few times, though being quite careful. It was nice to masturbate quietly in a corner, especially when a guy sat by me, rubbed his leg on mine. When I responded he put his hand on my crotch, feeling my erect penis inside. Each of us put a hand in the other's pants and that made us very hard. When the movie was darkish we took our cocks out and jacked one another off.
There's still a theatre in Long Beach although it is smaller. It's best mornings, when there are only a few people. There are good sorts of guys in there, who like to jack each other off. Some suck right there, but I tend to leave when that happens. I remember once that a guy was unusually sensitive and sensual, stroking my leg. Then he stroked my hand and my tits, making me completely erect. I took it out, so he fondled it and brought it off so well, as I stroked his erect penis quietly.