Yeah, quite a few years ago I was on holiday camping and the summer was still and hot, I was in my shorts and laying out on a blanket, the guy in the next tent, a fit looking guy, with his girlfriend were laying out sun bathing, he was wearing red football shorts (commando), which gapped at the leg, I glanced over as I turned over and could see up the leg of his shorts, to see one of his balls. This now go me interested, so I had to keep a close eye on the progress.
He started leaning over and started giving his girlfriend a kiss, well more of a snog, when I next looked over he was now sporting a big bulge in his shorts, which he adjusted, cor, was that making me hard... when I next looked over his bulge was down he leg, and YES YES YES, it was down the leg I could see up, and a nice big cut cock was there to greet me, I laying on my stomach and now drilling a whole in the ground with my hard cock.
This guy must have noticed me looking over and gave a smirk, he shortly afterwards got up (and I though oh shit he is gonna come over a say something), instead, he pulled up his girlfriend and his now very bulging shorts were really straining under the pressure from his big hard cock, they disappeared into the tent and proceeded to have a really noisy, fucking session.
When my girlfriend returned, we did the same..