Reading others' experiences provokes memories of my own.
When I was 12 years old and had just begun to ejaculate, I was home alone one day doing what I felt I was born for -- masturbating. I had done two sessions, and after a rest of about half and hour, was into the third when I was interrupted by my friend Howard who, being unable to get a response to ringing the front door bell, walked around to the rear of the house. He tried the back door, and when it opened began searching for me. He found me in my bed room with my raging hard five inch penis in my fist and me working on my third orgasm. I was embarrassed for him to see me in the middle of jacking off, so I stopped and covered up. He asked me to keep going and let him see me come. I told him he could watch, but he had to get his peter out and jack with me. He agreed, and both of us had our first mutual session.