This happened the next year after my other story
By now I was going through puberty well. My cock was now 7' when hard and about 4-5' when soft. Since we were now in high school we used to shower after gym and we got to see everyone naked. We all used to compare, some guys were really small while others were bigger. It is quite funny now to see some of the guys who were big then are just average now while some of the late bloomers are quite big. Anyway one of my friends was quite interested in my size he just kept staring at it.
In the next class we sat next to each other up the back in the corner so no one else could see or hear us. The teach was just talking and crapping on about something when my friend and I started talking. He was talking about my cock and how big it was but it was his next move that was the strangest.
He put his hand in my pocket and started to massage my cock until I got a boner. He then kept rubbing it. I was enjoying this because it felt so good. He asked me how long it was hard and I told him 7' and got excited because his was only 5' but he said it hadn't started growing. He kept rubbing and rubbing and eventual I blew my load right into my boxers.
I asked to be excused from class and he let everyone have a break. I went into the cubicle in the toilets and cleaned up the mess which left a little wet patch but that didn't matter.
I still like to get off thinking about that but this isn't my only experiences with guys and girls.
Happy Jacking and Jilling