Years ago I went for a walk at Rabbit Island. It was near the end of summer but the evening was quite warm and the fresh air is always good for the soul.
I was walking back to my car through the trees and heard a noise which to me sounded like a lady having sex. I went to look and sure enough there were a couple naked on a towel under some trees fucking. He was pounding into her from behind, I was getting a little hard watching. I must have made a noise as the lady looked up and saw me and waved me over. I went over and she said let me suck your cock. I happily obliged and pulled my shorts down so she could take my now hard cock in her mouth while the other guy continued to fuck her from behind. Getting sucked by a complete stranger in a public place was an incredible turn on. I ended up blowing my load in her mouth while the other guy pulled out and exploded all over her ass. I said are you two a couple and the guy said hell no we’ve just met! I never saw either of them again.