I've been masturbating for about two and a half years, and so far I have been pretty closed about it. Finally, on my birthday, a friend was going to stay the night. It had been about three weeks since I'd jerked off and I felt that I absolutely had to. I tried to resist, but the urge took over and I just started jerking off with myself.
My friend looked over at me which made me feel very embarrassed. I asked him to not tell anyone and he said, 'No problem.'
It was wierd, because normally, I hit orgasms very quickly, but with him there I just couldn't do it. Finally, after about 30 minutes, I had an orgasm and my friend was just staring at me the whole time.
I don't think he has ever masturbated, but I know next time, I'm going to try to get him to do it.
I want to recommend trying it with your close friends, and if you know they do masturbate, it should be easier.