Ok, here's another one that happened to me. I used to wait tables at this place 5-6 days a week, often pulling double shifts. So needless to say I was spending a lot of time there. I was around 22 at the time. There was another waiter who worked almost as many hours as I did, and we got to be pretty close from working together so often. He was a year younger than me (21), my height (around 5'10"), Irish (fair skin but very dark brown hair) with a handsome face and toned (but not overly muscular) physique. He was straight and had a girlfriend. At the time, nobody knew of my attraction to men -- I could barely admit it myself. But between my coworker's good looks and friendly demeanor, I started to become very curious about what he looked like naked -- I had only ever seen him in our uniform.
I decided I would invite him to the gym and see if I could get him to shower in the communal showers with me. We were discussing how little time we had to stay in shape because of our work schedule, so I mentioned how much I enjoyed swimming and suggested he come with me sometime. He liked the idea, and the following week when we both had an afternoon off from work, we went to the YMCA near me. When we got to the locker room, we stripped down at the lockers to change into our bathing suits, but his shirt was still on when he was changing and I didn't want to get caught looking, so I ended up not seeing much of anything besides maybe a small glimpse of something indistinct in my peripheral vision.
We went out to the pool and swam laps. He had a really nice chiseled chest and abs. Smooth, except for a bit of hair leading down into his swim trunks. He ended up having a good deal more stamina than me, so I got out of breath a lot sooner than he did and had to quit. I didn't want to just linger, so I told him I'd see him back in the locker room. At this point I was disappointed because I thought this might mean I wouldn't have a chance to see him naked if we would be going back into the locker room at different times. So I went back into the locker room and into the communal showers which were just to the right of the door. I took off my swim trunks, hung it on a hook at the far side of the shower room, and started showering. I wondered how long I could stay there without him thinking it was weird that I was still there when he came back in. I also wondered if he might choose one of the stall showers rather than the open, communal area. I must have been showering for a good 5 minutes when he finally came back in.
He crossed behind where I was showering, and I realized what he was doing -- he was headed over to where the hooks were so he'd have something to hang his swim trunks on. My heart rate started to accelerate. He was facing away from me, so I looked over at him sliding his trunks down, revealing a milky-white, nearly hairless ass. I looked away just in time, and he turned around and took the shower right next to mine. And there he was, in all his glory. He was so close that just by looking down my own body, I had a full view of his dick and balls. We started chatting with each other, and turned to face each other a bit. Each of us definitely glanced down a couple of times, but neither of us had any qualms about it as we continued to converse while facing each other. His pubic hair was trimmed, but not too short. Besides his treasure trail, armpits, legs, and a pretty sparse patch in the middle of his chest, it was the only body hair he had -- most of his chest and all of his abdomen and thighs were smooth. He was circumcised, and hung about 3-3.5" flaccid. I noticed his penis looked very similar to my own, except maybe just slightly fatter. His balls were fully shaved, and hung a bit lower than his cock. I couldn't believe my luck that I was getting to see this handsome friend of mine fully nude for a prolonged period of time. Neither of us had any shyness or discomfort about being naked with each other. I enjoyed that feeling of bonding as much as I enjoyed the actual sight I was taking in.
I had conveniently forgotten to mention to him that they don't have towel service, so neither one of us had brought a towel. I suggested to him that we sit in the sauna for a few minutes to warm up and dry off, which he thought was a great idea. We sat in there, fully nude, with him right across from me. Neither of us bothered to close our legs, so I was treated to the sight of his genitals from a different angle as they sat there between his legs with some of his scrotum hanging off the ledge where he was seated.
We finished up and went back to our lockers where we got dressed (we were still fairly wet, so this took a while and we made no effort to cover up). It was cool working with him going forward, knowing I knew exactly what he had under his uniform. I have no doubt in my mind that he is straight, but I think there was a mutual understanding that day that it was an opportunity for each of us to see the other naked, and I think that he enjoyed the openness and bonding element of it, although maybe not as much as I did!