My step-sister always had a thing for my step-son. She never mentioned it to me but I could tell by the way she acted that she was really into him. The last time she visited she saw how much he had grown and decided that she had to have him. I caught them fucking and was super pissed at both of them. After a few minutes I saw how good he was fucking her so being the step-Mom I am I and decided to try out his cock for myself. We both took turns getting fucked until his balls were completely empty