Derek is my stepbrother, 4 years older than me. We're not directly related. My dad married his mom. When we were young and lived together, he used to sneak into my bedroom and fuck me.

It started almost as soon as my dad and his mom got married and they moved into our house. I was still in High School and he had just graduated. He'd wait for dad and mom to go to bed and sneak into my room in the middle of the night.

Derek is a big guy, both in physical shape and his dick. He used to play rugby for our school. He would get into my bed and pin me down. I could not move with his weight on me and just stayed there for him to use. He liked to rub his penis with spit first before pushing it into me. He'd start slow and go deep, burying himself inside me.

Honestly no girl would find Derek to be unattractive. But he was never gentle. Always such a rough guy.

It varies but these sessions usually lasted from a few minutes, and up to a couple hours on a few occasions. In the beginning, it felt like eternity and I just closed my eyes and hoped for the abuse to be over. Derek has never considered that he's done anything wrong. He would tell me that he was fucking me as payback for my dad having sex with his mom. To him, it's only fair.

He eventually moved away to college and I only saw him when he returned for breaks. He never tried it again. He is now married with 2 kids. His wife and children have no idea what a monster he is.