When I was in the 6th grade some friends and I went swimming. Some of us had just started puberty. But when 3 neighbor boys dropped their underwear, the rest of u were SHOCKED! they had not just started, they were extremely well into puberty. All 3 were as big as our fahers. One of them had an older brother, and the one said his older brother had shown them how to masturbate, and that is what caused them to develop sooner and so much bigger than the rest of us. They were bigger at that age than most men are. In high school and college I never saw guys as big as these three guys were. Is there any truth in it that masturbation caused them to speed up their puberty and size? I am not 25, in excellent health. But I wish I were as big as they were.