Part of my life (nudist beach) true story

I remember, when i was 18, in summer i really wanted to go to nudist beach, it is about 13 km from home, i drive there with bicycle, it was tuesday ;) i was there around 10am, and there wasnt lot of people, on 100 meters only 2 or 3 people, i was sad, because there was only couples, in that age i wasnt interested in that, i wanted only woman from 30 ;) an finally i saw one, and put my towel about 20 meters near her, little behind the dune, so i could watch her while she was sleeping ;) it was nice, she was about 30 year old, with sexy body, and shaved pussy, but it wasnt long, till she went away, because it was 12 am, i wanted to see more, so i just was sleeping there, and sunbathing my fresh, young shaved cock. It was very relaxing ;) and about 1pm came two ladies around 40 years old, and they put their towels about 20 meters from me, when they dressed out, i was hard in one moment, so i turned on stomach, because i was shy :D at this moment i regret that i turned around, but didnt sleep further on the back, so they could see my boner :( After while i started to watch on them and masturbated on nudist beach while watching on them, it didnt took long to cum in sand, but it wasnt last time that day. I cumed 4 times in sand by watching on them, and in one moment it was already 5 pm, and they started to dress and went home, when they left, i dressed and drive back to home, i was very happy on that day, and actually it was my first and last time when i was on nudist beach, i really wanted to go this and last year, but i didnt managed to go :( Right now i am sad, that i didnt went to them and ask if i could sleep next to them, and maybe had some fun with 2 beautiful woman's in dunes, but i didnt do that :( And by the way this story is 100% correct how it happened ;) Story of my life ;)