I used to go to a sports center near where I lived that had a wet area that three days a week was clothing optional. It had a sauna with a cold plunge pool, a 6-8 person jacuzzi and a steam room as well as a relaxation area and two showers. The first couple of times I went I wore my trunks, but by the third one I was naked like the majority of the people. I’m not going to lie the clientele was 95% male.
Occasionally some couples would come in and more rarely a single woman or a couple of women. I was mid 20’s the age range seemed to be from there to 70’s. I soon realized that men were wanking themselves or wanking each other. I remember the first time in the Jacuzzi that I felt another mans leg nudge mine. Was it the bubbles that made it happen or had he done it on purpose. At this my cock was hard in anticipation. In anticipation of what I had no idea, but I knew sex of some form would probably happen.