Lesbian sex with my step sister

I have never told anyone about this before but when me and my step sister were camping outside her house she wanted to try something on me so I let her and she started tribbing me. It felt so good and we did it a couple times in different positions, I would lay down and she would be on top or the other way around, we would stand on our knees and grind each other etc. Then there was a storm so we went inside where we gave each other back massages and grinding each other’s back/butts.

We never did it again and we never talked about it. But there was a couple times she would touch me down there or just stroke my body and it felt sooo good. I think we were like 9 or 10 years old🤷‍♀️