I think I started when I was about 13. I don't remember the first time particularly, but I do remember one time very early on. I was rubbing myself on the sheets, like quite a few guys seem to do when they first start to self-pleasure, and was really getting into it, then I could feel all these shudders going through my body and my PC muscles jerking. I must admit to wondering what the hell was going on at the time, but as I got older I realised that I must've been having a "dry cum" - presumably all the bits weren't quite working yet, so no love-custard available to be fired out of the purple veined custard chucker.
Strange huh?
Russell