See previous posts 'Summer Fun - Part I' and 'Summer Fun - Part II'
Late that summer my friend Bill and I had an interesting experience. We had climbed up into the treehouse in his back yard and were in the process of playing our usual game of 'stripped war' when we were startled to see the hatch way door open. It was his cousin Ron who was a year younger (15) than the two of us. He asked us what we were doing and we explained, asking him if he wanted to join us. He said, 'no, but is it OK if I watch?' We said that it was OK and continued to play our game. As usual we went through several rounds with each of us loosing and the looser being jacked off by the winner for 1 minute. I then stated that the next time we would remove the 1 minute limit on jacking. Bill said OK and we started to play the game. As it turned out, he lost and I was beginning to jack him off when Ron said, 'why don't you jack each other off' and I said, 'that's what we're going to do'. He replied, 'no, I mean both of you jacking each other at the same time.'
Well, we had never done that before but since Bill was left handed and I was right handed it seemed like an interesting idea. We both laid down on the floor, with him to the right of me. He reached over with his left hand and began stroking me as I reached over with my right hand and began stroking him. Of course, we were both pretty aroused by now and having Ron watching us was an additional turn on. Within a minute Bill said, 'ooh, I'm gonna shoot' and the 1st stream of jizz flew out of his cock and up onto his chest. Seeing his 1st shot of jizz was all I needed to put me 'over the edge' and I said, 'I'm gonna shoot too!' What followed was pure poetry in motion. As the 1st shot of jizz spurted from my cock his 2nd shot spurted from his cock. And then together my 2nd shot and his 3rd shot spurted from our cocks up on our stomachs. Ron said, 'wow, that was neat! How did you manage to cum together like that?' We said that it was mostly dumb luck but that when I saw Bill shoot it put me 'over the edge'.
I told Ron (the cousin) that it was his turn now. Initially he was reluctant but eventually pulled down his pants and then his underpants. His cock was already hard and I was relieved to see that it was about 6' long, the same size as mine. I was beginning to feel a bit inferior since Bill had a 7' cock and my 1st experience when I was 11 was with a guy who had an 8' cock. Anyway, I got to jack off Ron and began stroking that nice 6' cock of his. Very soon he moaned and 3 streams of jizz quickly flew out of his cock all over his stomach.
That was the only time that Ron joined us but Bill and I got together a couple of more times that summer.