Meeting my Stepdad for the first time

short True story of how I first met my future stepdad

It was a Saturday morning. I was supposed to be staying at my best friend’s house for the weekend but she had developed a fever and I figured it was best to go home so I didn’t get sick.
She didn’t live too far so I just walked home.
When I got home I didn’t see Mom anywhere, so I thought she wasn’t home. I went to my room and was about to start my homework when I heard something from her room, so I went to say hello.
When I opened the door I got a full view of a man between my mom’s legs fucking her very hard. I just stood there shocked and unable to move. They both looked at me and I remember my mom doing her best to push him off of her and cover herself, but he just kept going.
He grabbed her and pinned her down. Holding her head so she was forced to look at me. He stared me in the eyes and kept fucking her.
I finally came to my senses and went to leave but the man said, between thrusts

Don’t
You
Fucking
Move

He finally yelled when he came and my mom screamed (he told me later she said it was the hardest she ever came) He collapsed on top of her and I left the room completely in a daze. I tried to avoid him when he would come over. even if it was just for dinner but he would go out of his way to loudly fuck my mom at night knowing my bed was against the shared wall. i could hear him talking to her while he fucked her. asking if she was being a good mother and training me to be the slut i was born to be. I didn't understand what he meant at the time but i would listen and it wasnt long before i started playing with my pussy to their sessions.
After he moved in he started making rules that the doors in the house were never to be closed or locked. He would come in after fucking my mom to check on me and "tuck me into bed"
he was still naked and i could smell the sex on him.
He tried to make us a nude household but i was far too shy and tried to resist him.
When they got married he really took over at the patriarch and it wasn't long before he got his way in a lot of things
I know he sounds mean but he really did become a very good father and was very loving when i finally learned to follow his rules