The first time I ever experienced an orgasm was when I was twelve. Before the age of twelve I had always played with my penis but I never did it to the point of orgasm. I didn't even know what masturbation was.
So one day I was looking up what masturbation was in a health book. And all of a sudden my older sister came in and saw me reading about masturbation. I was embarrassed but she instead explained to me how boys masturbate. Then she said she would show me how an orgasm felt.
She made me take off my pants and underwear and lie down on the bed. Then she started to stroke my erect penis. As she went along the pleasure I was feeling was unlike anything I had ever felt. Then the orgasm came, my whole body was filled with pleasure. My whole body was pounding with pleasure. I looked at my penis and semen was squirting into the air, onto my belly, and it was on my sister's hand. My sister cleaned everything up with some toilet paper then talked to me. She told me it was ok to masturbate and that I should do it in privacy whenever I felt horny. I want to thank my sister for teaching me about masturbation.