This is a mostly true story, happened when I was in military stationed on Okinawa, Japan.
Had been there a few months, and like any other young man, had visited some of the bars, and had met up with a "lady of the night" a couple of times. One day while walking around the town, I discovered an "adult" movie house. Had some sexy pictures noting what was being shown, but they were all in Japanese, so I just passed on by.
A few weeks later, nothing to do on a day off, so I figure, why not check out the movies there, I had taken a Japanese language class at the USO, thought I could understand at least some of it.
I enter the theater, of course it is somewhat dark, notice where the restrooms are, and I go find a seat, there are about 15 or so other men watching the movie. I find a seat, about 6 rows from the back, the entire row was empty, I took a seat in the near the aisle. Japanese "adult" movies are censored, but there was a whole lot of T & A, and you knew what they were doing.
After about I was there for about 20 minutes, an older (50?) Japanese man came over and sat next to me, on my left, did not say a word. After a couple of minutes, the guy puts his hand on my thigh, which kind of surprised me, and I moved his hand away, again no words were spoken. Now of course, watching the movie, I am getting a bit aroused, when once again he puts his hand on my thigh. I'm not sure why, but I don't say anything, or move his hand. Slowly, his had moves up my thigh, I'm wearing shorts by the way, and one of his fingers goes under the shorts. Again, I don't say anything, or remove his hand. He then moves his hand up to my crotch, and gently gives my hardening cock a squeeze, oh it felt good! He continued to squeeze, and rub my now very erect cock, but was gentle about it. He then worked my zipper down, and took out my cock and started to slowly frig me. Oh my, it felt great! Still no words had passed between us.