Rubbing sessions

She's 2 years older than me. When we were young she would have me get on top of her with our cloths on and have me press my penis against her vagina. At the time I didn't think too much of it....it felt good, so I enjoyed it. Not sure if she was have orgasms at the time or if it just felt good to her too.

Then when I was about 12 years old we were doing one of our rub sessions. They felt much better as I got older and this particular time it was feeling really good! I remember I like feeling her breast against me...she had developed by now. Then as we were rubbing against each other all the sudden I had this very intense session. I couldn't move and I felt like I was going to pass out then my penis started pulsating and I could feel my self peeing....but it wasn't pee. I had my first orgasm. It scared me a bit, but it felt really good. After that I wanted to feel it again. I would ask my sister for rubbing sessions more often.


The rubbing sessions lasted until I was 16 and she left for college. Ever since then we never spoke of what we did when we were kids, and I have to admit I think about those time sometime when I'm with my wife, but I have never told her and one what took place many years ago.

Did this happen to other siblings too??