I was 13 and rather horny most of the time and would always find new ways and new places I could masturbate. My step brother was a year younger than me, we got on pretty well. I had a thought that maybe I could masturbate for him. We generally had showers together as my step mother was always strict on saving water at the time.
It was time, we were called to have our showers, we went and got our pjs and met in the bathroom. The door was closed and locked. I was feeling a little nervous, We got undressed and got in the shower. We talked like we always did and occasionally looked at each others dick as this was a common thing between us. We bathed ourselves and were just about to get out of the shower.
I asked him 'Wanna see something cool?' He nodded his head. I told him that he couldn't tell anyone. With that he agreed. I grabbed my six inch uncircumcised dick and proceeded to jack off. I became hard quick. With every stroke leading towards my first orgasm in front of my step brother (Not my absolute first orgasm of course). I looked at him and he just stared at what I was doing with my dick. I noticed that his dick too was becoming hard. I continued to stroke myself harder and faster, I could feel my orgasm building and my dick beginning to pulsate, I knew I wasn't far. Within two more minutes I said to my step brother 'Are you ready for this?' He nodded. With three more strokes of my dick, my body stiffened and shook and I shot four ropes of cum into my hand, Man what a powerful orgasm that was for me, the best one I had at that age.
My step brother was in shock, not knowing what to do. I told him that I just masturbated and it feels really good that he too should give it a try one day, But to do it in private. I showed him the cum that was in my hand and explained to him what it was called and what it was made for.
We finished up in the shower, got dressed, ate dinner than went into our room and talk more about what I did in the shower and I explained everything I knew about masturbating. We went to bed to go to sleep.
The next night when we went for our shower, he asked me to masturbate again for him but that's another story for another time. Hope you enjoyed my contribution and happy masturbating.
To be continued..