Stories (not Pictures) Of Seeing Accidental Dick/ball Slips

I go to a gym with classes and there is one rather handsome straight guy, he has taller and leaner physique and is pretty chatting - he's well liked. In Australia rugby is a pretty popular sport, which means that most aussie guys are comfortable wearing shorter and tighter shorts than what I see Americans do.
This guy normally wears something a bit longer than rugby shorts, but you can always see subtle bulge, and I've looked a number of times.

Anyway, I was working out opposite him and the exercise involved us standing up and getting on the floor for a few different movements - I am not sure what happened exactly, but I think the elastic on his underwear must have broke because he was definitely wearing a pair of briefs, but on the last two rounds as he stood up I caught the right angle up one leg and saw it all.
He's about 32 years old and uncut, he obviously shaved his balls they looked smooth and sweaty - we were working out so i am sure there was a bit of normal shrinkage, so I won't judge size.

Still, it was glorious, I get to think about it now - it was a lovely little thrill towards the end of a rather intense workout. I am sure if we weren't all huffing and puffing it would have been obvious I was staring, because once we stood up it was all clearly bouncing around as he he did the backward lunges. bouncing from side to side:p
 
This has always been a major kink or mine, for as far back as I can remember. Glad to see I'm not the only one.

Yep. Would love to keep this thread alive.

Anyone with any stories, especially love stories from the 1970s and 80s when shorts were short.