You have no idea how many times I've masturbated whilst reading this site.
The first time I ejaculated, I was nearly fifteen (A very late bloomer). A friend, aged fourteen, and I, were at my grandmothers home, when he asked me if I jacked off. I told him I had jacked but not off. He said he had been cumming since he was eleven. He asked me to go into the barn with him and give it a try. He told me to play with my balls and pull on my dick. After only a few minutes, he shot and told me to keep at it. Soon, this incredible feeling began to come over me, and my hand sort of locked and whew! what a load I shot. Needless to say I went home and did it twice more that day, and I have been doing it almost every day since. I have more good stories to tell later, if anyone is interested.