First time interacting with another guy! [MM] [19M] [long]

Quite a few years back when I was 19, I started regularly going to a gym near my house. I would workout, swim a few laps and sit in the steam room a little while, then shower and leave. Nothing out of the ordinary happened, but I did start to notice the male form a lot more because of the exposure to all the naked guys.
One day I go and sit in the steam room and I notice the older guy sitting naked in the corner with a small towel half covering his cock and balls, it was enormous. I tried to ignore it but I couldn’t help myself but to stare at it. I’d never seen a clock that big before. He wasn’t paying much attention to me and would let his hand wander and play with it a little bit. He’d get it hard and then take his hand away. I was very entertained by him, what he was doing, and what with.
He and I both got up at the same time, unintentionally, and headed to the showers to cool off. I almost bumped him and went to say excuse me but the only words I would form were “nice cock, sir.” Embarrassed, I sped walked to the shower, turned it on, quickly took off my underwear, and hopped in. In my rush I didn’t shut the curtain all the way. He purposely chose the shower directly across from mine, turned on the water and stepped in. He, on the other hand, did NOT shut the curtain and all and proceeded to stroke his huge cock while glancing at me through the curtain. I didn’t realize what was happening until I was bent over at the waist, washing my legs and saw this man rubbing his cock. Realizing that it looked like I was posing for him I quickly stood up to only show him my throbbing erection. I had no idea at the time but at the age of 26 I’d come out of the closet and be proudly bisexual. Anyway, I felt like I had not control over my hands anymore and began to stroke my cock as well. We jerked off together, him looking at me, and me at him. We both came in the gym showers that night. It was the most intense orgasm I’d had up until that moment.
After that we both got out, dried off, got dressed and left.
To be continued…

Source: reddit.com/r/gonewildstories/comments/9dw7fq/first_time_interacting_with_another_guy_mm_19m