Is this sexual assault?

First off, I dont plan on going to court with this. I just need some closure. I was young in my midteens. My guy friend asked if he could come over and I said sure. I didnt want to have sex with him, it wasn’t even on my mind. When he came over I showed him my bedroom. We were just watching tv at first when a commerical came on,and he said we should kiss until the commerical is over, and I said okay.

His kisses were forceful, and he started to undress me. I immediately felt uncomfortable and confuse. I even asked him how did my clothes get off so fast.

He wanted me to do stuff with him, but I was hesistate and he got frustrated and told me to turn around. As soon as I turned around he shoved himself in me. He even asked if I wanted to stop. I told him yes in tears and he kept going, which seemed like an eternity.

I felt violated, but I brushed it under the rug. I dont know how to describe what happen in little words now.