I discovered this site by putting 'masturbation' in the browser box a few weeks ago. I had a lot of sexy fun looking at all the other sites that came up but this is the best.
Sometimes when I'm at school and sitting at my desk I get a boner for no reason at all. It just happens. I usually go into the toilet as soon as I can and lock myself in a cubicle so I can masturbate myself. I know other boys do the same as I've heard them as the partition isn't that sound proof and there's a gap under the wall. Once when I thought I heard a boy wanking in the next cubicle I got down and looked under the partition and there were two boys, one on each side of me, at it. I could tell by the movement of their jeans what they were doing.
Anyway, if I feel horny I go there and push down my jeans and start stroking my cock. It always feels great when I do that as I guess anyone reading this will know! I'll either sit on the pan or I'll stand facing it and masturbate for as long as I can till I shoot my load in wonderful hot spasms. Then I'll go back to the class for the next lesson feeling satisfied and much more comfortable.