*Read my last posts to understand this better
My dad and her dad are good friends and been friends for over 10 years and I started secretly going out with her. Yesterday, I took my girlfriend on a movie date and when the movie was over we went back to her place, her parents were home and I greeted them. We went into the room and we started making out and eventually we took our clothes off and started having sex, I took her from the back and did doggy, I slapped her ass hard and she moaned, I started clapping her cheeks hard, I would change my pace to control myself, I slapped her ass again and immediately I hear a knock on the door, it was her dad! He asked if everything was ok, Amy, my girlfriend quickly grabbed her towel and answered the door, I covered myself with the blanket, her dad looked at me and then at her, he stared for a few seconds and told me to “be careful” and closed the door.