I was in my mid 40s when I went to my first adult theater in San Antonio. I was sitting in the third row and noticed several other guys in the theater were masturbating. I soon became aroused and decided to jerkoff to the movie. I had opened the front of my jeans so my cock and balls were on display as I slowly stroked blissfully unaware of the theater patrons behind me. Then one of them leaned forward and whispered "Nice cock" in my left ear. That totally shocked me and I zipped up and left the theater. As I was driving home relived the experience and realized it was quite thrilling. I went back the next day for a repeat performance including ejaculation and I became hooked on adult theaters. Unfortunately all the San Antonio bookstores and theaters have closed and I'm searching for other exhibitionistic opportunities!

I was 35, and it was during the mainstream film Springbreakers.
Did not plan to whip it out, but was at a matinee in an empty theater. Was so hard seeing the girls parading around just had to pull out my hard cock for some relief.

I was 19 in an adult theatre in London. Was watching a daddy/daughter scene and I realised I wanted to fuck both of them! I was so aroused my cock was soon in my hands and I was furiously stroking it. There were people around but I didnt care! Came loads!

at a regular theater i was probably late teens. also, had some fun with GFs in them up through college.

at an adult theater i was 25 and newly engaged when i discovered them. lots of fun on the numerous visits to the one that was like a 15 minute walk from home. loved sneaking out for some cock when the fiance was asleep

When I was a kid going to the neighborhood theater, any movie with cute girls in it, if there was a beach scene and the girls were in swimsuits or bikini I would have a rock hard boner. And this was before I started jacking off. To answer the question I was early 30, at a porn theater, it was late and I was by myself, sat there stroking, stood up and shot a nice load.