I go into my step-brother's room and catch him trying to jerk off. His cock is not hard yet. He has stress problems. I tell him that it is normal and he has no step-son to be ashamed, I am his step-sister. My step-brother has always taken care of me. It's time for his step-sister to help him. I really want to help him drain his balls. His cock is huge and his balls are loaded with cum. I start rubbing his cock while teasing him with dirty talk. I love how hard it's starting to get. He cum in my hands. He even has to have more cum in his balls so I start giving my step-brother a good blowjob. My pussy is starting to get wet and I want my fat ass to ride his cock. I start bouncing his big cock very fast and hard. I had never been so wet. He is my own step-brother. I want him to fuck me very hard doggy style. My step-brother spanks me and puts his cock in very deep and fast. I'm very horny. My step-brother loves my fat ass. He fucks me very hard until we cum. He explodes a lot of cum all over my big ass. I have the best step-brother in the world. I will always take care of him when he needs me