This happened earlier this morning, still in a daze. I'm staying in a campsite in France and theres a nudist beach very close to it. I have been running on this beach each morning for my morning run, I wore clothes at first but for the last week I have been doing it naked.

This morning the beach had about 40-50 spread across the full 2 kilometre stretch, a wide variety of shapes, sizes and ages. I ran past a guy on the way up the beach who was older, I reckon 60s, he looked very fit though and had a nice flaccid cock - everyone checks everyone on the nude beach! Anyway, on the return leg I passed him again and he was noticably semi hard. He was looking at me with a longer stare this time and a slight grin.

I ran to the end of the beach and back and noticed he had moved towards where my towel was. As I approached him, he had his back to me but I could see his arm moving. As I got within 20 metres of him he turned around and I saw he had a huge, fat erection. I honestly wasn't expecting it so I averted my eyes at first but then I copped that he wanted to show me so I got to my towel, turned around and looked directly at him.

Now, I'm bi, have had sex with men before I met my wife and even a couple during our relationship in group sex scenarios but it hasn't happened in a while. I have also NEVER cheated on my wife with either gender. What happened next happened so fast and so unexpectedly that I'm not even sure how!

As I looked up at him from my towel, we were within 5m of each other and he was slowly approaching me but I was just having a staring competition with his cock. As it got closer and closer we exchanged polite hellos. Then he just kept coming closer and closer and I just automatically sat up, grabbed his big old cock and started sucking right there. I sucked and wanked for a just 2 or so mins before he blew his load in my mouth, then he walked off woth a cheeky soft "merci".

I got my clothes back on and went home to the wife and kids in a daze.