I'm 25 years old and started masturbating when I was about 13 pretty much by accident. I had been looking at my parent's sex book; you know the ones that have all the positions in. I had been looking at this and remember being amazed at what sex really was and not to mention very turned on. So with my cock straining through my trousers I was rubbing and playing with myself when all of a sudden a very hot creamy liquid felt like it was surging up from within and out of my cock. To my surprise and amazement I was still trying to figure out how something other than pee could be coming out of my cock! And being the rather typical teenager I did this again and again often masturbating as many as five time a day.
When I was 14 a friend of mine Jeb and I were discussing porn magazine while we were walking home from school. He told me that he had managed to get them from somewhere, (can't remember where!). We agreed that one night we'd meet after school and have a look at them together. Subsequently we met half way between our houses and decided that we'd go back to my garden and look at the magazines, armed with torches so that we could see what we were looking at. After about 20 minutes of looking at the women spreading themselves every which way it was obvious we both had hardons and I remember Jeb commenting that he was going to take his cock out and wank. This was just the amount of encouragement I needed to start playing with my cock too. His cock was like mine, uncircumcised with a red tip and very veiny, his cock also had a slight curve whereas mine is straight. It wasn't long before we ended up touching each other's cocks, more or less out of sheer curiosity. We then went back to pleasuring ourselves in the torchlight. When I saw him begin to cum it triggered my orgasm; we both ended up spraying over the naked girl in the magazine.
The whole experience for me was extremely horny, the naked girls in the magazines, the torchlight and the whole new feeling of sex play. When you're younger everything new is greener and has more of a novelty. For me masturbation is still one of my favourite past times, particularly with someone else. There is nothing better than experiencing something so taboo almost but so open and intimate with someone of the opposite sex or even the same sex.