It was a popular spot so there were a lot of people in the water. We all got into the water, with both of us wearing swimming trunks under our pants for it.
Anyways after some time we heard a commotion and saw a boy, about the same age as usual, running around naked with his hands cupping his manhood as what I presume werr his parents tossed his swimsuit around. They eventually ended up throwing it high up onto a rock, basically forcing him to stay naked.
Well this whole scene inspired my mother, who pantsed my cousin, snatching up his swim shorts from around his ankles and pinching his butt.
Other than the obvious embarassment of being stripped naked, the poor guy's soldier began standing to attention at the butt pinch
Anyways the shorts were kept away from him for a few minutes (while the other people around all also saw him naked) before finally giving them back.
I wasn't pantsed, but I suppose it was a moot point since after getting out we had to strip off our swimsuits and stand there, penises hanging out for all the people to see, while we dried off.
Naturally, the moms around enjoyed that quite a bit. But what stood out to me most was making eye contact with a girl who was around 10-11 in her panties, I blushed, and she pointed to her panties, then my dick, basically laughing about me being naked despite being multiple years elder to her.
Anyways after we dried we got dressed, and went back, sans underwear, which meant if someone tried they could see our outlines through our pants, but we just kept our hands there to cover it for the most part.
For those curious, my cousin did have pubic hair, but not a great deal. I don't know whether it was due to delayed development or he trimmed it.
P.S. This feels like it could be fictionalized and made even better, maybe add a naked streak through a public area, etc. If anyone wants to try please do so