OK, lets keep this short:
Today a total stranger woman I met at a nudy beach, we were talking, went for a swim.
Later I see her again, she was laying in a quiet spot with her legs spread apart. Another guy was jerking off close by.
After a while the guy left, I did not want to ruin it for him by staying there.
So later I returned the guy left. She was still there, I talked to her, my balls all tied together.

I lay down next to her, started to talk, touched her ass and stuff, while I started jerking myself. She watched it, she liked it.
I asked her to sqeeze my balls for me, she did, nice and firm ! Then I came and I greeted her and then I left.