I lay n.aked on the beach sand, high up which was a little private from the other beach goers. Within an hour a middle-aged man walked past and asked if he could leave his towel and valuables by me, as he was going for a swim. He came back a while later, thanked me and proceeded to lie on his back. He asked me to apply suntan spray lotion all over which I did. Within a minute his c.ock was standing upright. I uncontrollably started jerking him off and noticed some beach p.erverts standing around j.acking off. He smiled with his eyes closed fully aware that we were being watched, my hand firmly around his c.c***, as a fountain of c.um gushed out into the air. That was such a lovely day at the beach.