I don't know what happened... (possible trigger)

I don't know what it classifies as (rape, harassment, etc) and it's starting to eat at me more and moremore, the curiosity is burning a whole into me, the fear took my voice.

When I was little (I think about 1rst grade) I was pretty much a sister to this friend of mine, Kayla*. Every weekend we were at my house or hers, and I'd often go to church with her family. We were joint at the hip. One day while at my house, Kayla did something that I won't forget and she continued to do it for about a year. She got on top of me and held me down, pinning me with her weight... She pretended she was sleep walking, and I was a boy name James*... She'd moan and say his name... And she'd hump and grind me... I couldn't rarely get away because at that age I was very tiny in build and she was much bigger...

I struggle with my self-worth in part because of it and I struggle with its classification because we were so young and both girls.

*names have been changed to protect their identity.