I was camping with my parents in greece, i was a bit old for camping with them, but i had my own tent and went off by myself a lot. One day i walked along to the nudist beach, i was really hot and went for a swim, nobody much around so i took off my speedos. When i got out of the water i noticed and old guy next to my towel, he said hi in german and told me it was much more sheltered behind the beach in the dunes, as the wind was getting up. I noticed he had a semi hard penis as we walked along, he made a point of lightly touching the side of my leg/bum as we walked along, it felt kind of horny doing this, and my cock twitched a bit, i had never been with a man and he was older than my dad.