I was feeling a bit bored the other day and decided to wander around the house. As I was walking through the hallway, I stumbled upon my stepsister's room. I had never been in there before, but something about it caught my attention. I couldn't resist peeking through the keyhole and what I saw made my heart race. My stepsister was sitting on her bed, completely naked, playing with her small tits. I couldn't believe what I was seeing. I quickly got hard and decided to join her in her room. She didn't seem to mind as she let me take off her clothes and suck on her big ass. The sight of her tiny tits and big ass was too much for me to handle and I ended up cumming all over her.