When I was 19 I was often stuck for things to do before I went to uni. I had a casual girlfriend but not much was happening. I would occasionally take myself along to the local leisure centre for sauna & sunbed. I had a good tan and wanted to top it up.
I got to the reception and was informed that it was a male-only session in the solarium. I would have preferred mixed but at least with male-only I could walk around naked. This prospect seemed to make me horny and so after taking my clothes off I was left with a huge erection (7' and v thick). I figured I was on my own as I strolled towards the sunbeds, but before I started the session I took a short detour to check the sauna. I looked through the little window and noticed a man (50s) sitting naked in there.
As I lay on the sunbed I thought I was ok being naked seeing as he was too, but my perpetual stiffy could be less justifiable. But I thought who cares?
After 5 mins the man appeared. He mumbled something about the top of the sunbed not being down properly. He then lowered it fully and touched my naked pelvis in doing so, as if feeling the heat of a heater. I thanked him. He disappeared presumably to the sauna. I didn't think much of the incident, naively.
After the session I was sweaty so went to fetch my towel so I could take a shower. I wrapped the towel around my waist. Before I could reach the shower the man appeared. I was still really enjoying my erection but the head was peeping from the top of my towel. He gestured to my nice tan below my naval. I watched his hand as it slipped down onto my cock. I kind of froze as he continued to rub my cock up and down. He played with his cock which was completely flaccid-I later worked out this meant he was impotent!
I moved away from him and to the shower. It wasn't long before I noticed him standing rubbing his floppy cock whilst I washed my stiff youthful rod. I didn't find him remotely attractive but found the encounter itself highly erotic. I pretended I hadn't noticed him and started teasing him by washing my cock suggestively and bending over pointing my ass in his direction.
After the shower he grabbed my stiff cock again and we sat on recliners whilst he vigorously rubbed his impotent penis and did the same to my contrastingly stiff cock. He stood in front of me ready to cum on my naked body. I helped him with my hand though it seemed weird to me that it was still floppy!
Anyone could have walked in on us, but of course that added to the thrill. He sprayed cum everywhere. I moved to the changing cubicle. It was partly secluded thankfully cos I jerked myself off and came just as another man walked in! Phew !