I live in Hawaii, so it's natural that I love to be at the beach, on the sand or in the water. There is a super secluded spot near my house where I used to go two or three times a week to nude sunbathe. Occasionally I would masturbate because I was completely alone. I could lay out for hours in the sun, covered in oil, and stroke myself just a little at a time. The feeling of being out in the open with the ocean in front of you and the hot sun streaming down on every inch of your body is such a turn on, and the freedom of being completely alone.
Well one day I had oiled myself down and had begun stroking myself and playing with my nipples. It was a gloriously sunny day. I was feeling so relaxed, I was moaning and breathing heavily feeling my muscles tense and relax. I opened my eyes and got the shock of my life, there was a guy standing just a few feet away from me. He was wearing shades and small white shorts and he was staring at me. I was kind of flustered, but I was so far into it that I really didn't want to stop, so I kept stroking while he stared at me.
He pulled out his long, hard cock from the leg of his shorts and started rubbing himself along with me. I didn't want to cum before him, so I slowed down the strokes on my cock and focused on the rest of my body, which was hot from all the sun. I slathered more oil over my whole body while he stroked his dry cock, moving a little closer to me. I felt in control until he reached out and put his hand on the base of my cock and pulled the skin tight. That was all I could take. I tensed my entire body to hold it back, but I shot hard and my whole spine rippled with each spasm. I pushed his hand away and he knelt down on the sand and aimed his cock down onto the sand and squirted a couple of times. I caught my breath and then had to go in the water to clean up. He walked slowly away and didn't look back.