In PE class in the locker room there was always one guy that had a big hard dick. His locker was in the locker room hallway to the showers, we had one big shower. He was always standing there taking his time dressing, showering, getting dressed, and it was big. I don't think he was gay or anything, just liked sporting a huge hardon. Even the gym teacher made a passing remark about it once, something like, that's one big package, just locker room talk. I was always afraid I would get a big hardon walking by and seeing it, but I didn't, somehow I controlled it, probably out of fear of getting a hardon. That was my biggest fear in starting gym classes, was getting a big hardon in the shower.
Then, one day, several of us were in the locker room alone, so a couple of guys decided to take showers and slide on the shower floor racing, it was a long shower. They wanted me to join then, ha, by then I had such a huge hardon I thought it was going to rip my pants. I stayed at my locker clothes on, and then made some excuse to leave the locker room before they came out of the shower and saw the huge bulge in my pants.
Dressing in the locker room down at my end was one guy that always had a half hardon. I started watching him and he watching me. His dick grew and I started to get hard, but I was safe, as I was dressing I knew I could get my briefs pulled up and my dick pushed down into my pants before anyone could see me other than him. Those were fun days looking back, exploring all of these arousals.
Then, in boy scout camp years ago, I was taking a shower and a guy in my troop came in the shower too. It held about four guys at once. I was gay, but had no idea I was way back then. He had a huge hardon, then starting soaping his dick up, talking about it took him about 10 minutes to wash his dick. I really started to get really hard, so wrapped my towel around me and got out of there fast. Way back then, they probably would have hospitalized you if caught fooling around in the showers. Funny, I had no idea I was gay, but thought to myself, this is going to be really bad news if someone sees me in here in this shower with a hardon. Good thing I left too, because two of my friends came in just about the time I left. By then, my hardon was well hidden under my towel, sort of.
Fun times, thinking back.