Stepsibling seduces hard cock beside her oblivious boyfriend

“Let’s go Bradley!” shouted Mom. “Oh! China AV She sat back down on the couch and opened her legs. I looked down at my dick. I went in and threw my bag on the bed. “20 minutes!” I had no idea what I was in for but I cleaned up and put on the underwear. Her juices were flowing and she smelled and tasted so good! The woman looked around 5’7” and had curly, short, gray hair. She snapped out of it. I couldn’t believe it her pussy was tight and shaven! “I don’t care your father and I are going away and you are going to your grandmother’s!” my mom yelled at me from downstairs. She pulled my SpongeBob underwear completely off. “Ummm Grandma my parents made me come!” “I know but I still love that you are here.” “Ok, well I’m going to head upstairs and uh… get settled in.” “Fine dear” I knew that Grandma had a computer in the guest room and I intended to use it. After a few minutes of pictures and videos I was finished. “Let’s go Bradley!” shouted Mom. As soon as I was in my grandmother’s line of view she was staring at my dick because it was bulging so much. It was around 5 ½”, if I were to guess and had barely any hair around it. At that moment I was about to blow my load when my Grandma burst in and asked “What would you like for supper hun?” “Oh Grandma I was just… uh… nothing…” “How dare you use my computer for masturbation?” “I’m sorry…”