I like to go to the sauna/hot tub in our housing complex. I prefer to go later in the evening; by then all the day-timers have left. Last night I went to the sauna. During the day, I keep my shorts on in the sauna but, alone at night; I like to sit there naked. I take my shorts off and sit on my towel. If I hear anyone coming in, I can quickly wrap my towel around me.
I was sitting there idly stroking my cock; I was not yet rubbing it in earnest. I was just enjoying making it hard. I love to build anticipation in sex. I was remembering a previous time when I had sat here. On that occasion, when I got there, a couple was already cooking nicely. He was wearing swimming shorts and she had on a cute floral bikini. Since it was earlier in the day and they were there, I kept my shorts on but I decided to just sit on my towel.
However, my white shorts have suffered from too much exposure to chlorine in the pool. While I am walking down to the sauna, I look fine. If I met anyone I knew I would appear to be completely normal but when my shorts get wet they would go transparent. To visit the hot tub I wear brightly colored girls panties underneath. I know they will show after I get wet in the hot tub and I love it.
For the sauna, I find tight bikini panties are too restricting and so I just wear the shorts. Upon entering the sauna, I nodded to the couple, sat opposite them and leaned back. I knew what was going to happen and it made me very excited. As I started to sweat my shorts started to become see-through. Slowly they stuck to me and became more and more transparent. My cock was semi-erect and knowing it was showing only made me more excited.
I know they could quite easily see the outline of my cock and I hoped my pubic hair could be seen too. I imagined them giggling together about what they had seen. "Did you see his cock, he was hard." Thinking about their conversation only made me harder. There is no way they did not notice.
When I got up to sprinkle some water on the charcoal, they got a really good view. My cock was clearly erect covered in thin white cotton that was sticking to it. When I turned around to sit back down, I know the material was sticking to my butt. Nothing happened that time but I did enjoy showing off to them.