The following story happened when I was at the junior school. My penis had already grown to 14 cm by that time.

I missed the kindergarten and the "entertainment" that was at it. One day my two friends and I stayed for paid additional aftercare lessons (the so-called "extension"). When the teacher left the class on business, one of my friends at last agreed to show me his penis and masturbate. I unbuttoned my black trousers and took out my erected veiny penis.

The guys were delighted. The friend, a same thin boy as I, also quickly took out his very thin (probably one and a half centimeters thick) and short penis. The foreskin, having adhered to the crown, still did not expose its cone-shaped head, the forms of which were clearly visible even from under the skin. And the second guy flatly refused to get out his cock, afraid that the teacher would return any minute. We didn't share his fears.

In exchange for the size of my pride, the excited comrade told me that his penis was only 7 cm long. I again experienced the already forgotten pride in my cock and, overwhelmed by this feeling, began to masturbate. And the classmate immediately joined this activity.

P.S. The second friend's penis I saw another time. He showed it to me outside in the bushes. It was even smaller: 4 cm.