Older step-sister Harley is doing squats with a barbell and is being spotted by younger Step-Brother. She asks him to step back and give her some space as she begins to squat with buttcrack showing slightly. As she squats down, he lets himself rub on her slightly and also uses a finger to pull down yoga pants slightly to see more of buttcrack. After a few times when her crack is showing more and he grabs her ass and she shouts at him did you just touch my ass. Roxy her Step-Mom comes in asks what's all the noise and what's going on in here. Step-Sister says her Step-Brother was touching her ass but Step-Mom sides with Step-Brother and tells Step-Sister to stop being so ridiculous telling tales. Step-Mom tells her that she should be grateful that her Step-brother is willing to take time out of his day to help you exercise. She tells her to get on with it and stop moaning and complaining. She does not expect to hear anymore noise from up here and storms out. Step-Sister says she does not care what Step-Mom says and tells her Step-Brother he is just a perv. She goes back to squatting with her Step-Brother helping, she is still suspicious of him but carries on, not noticing how much buttcrack is showing and now her Step-Brother now keeps his hands to himself but slyly slips his cock out during one of the squats and rubs it on his Step-Sister's back & buttcrack whenever he can. Step-Sister is on her last set as she finishes the workout and leans forward on the rack, panting, the Step-Brother spots his chance and sticks his dicks in her asscrack, jerks himself of into her buttcrack and cums. She turns to rub the cum off her ass and she angrily shouts at him what the fuck are you doing, you're such a pervert. The next day, Step-Brother hears some shouting and walks back into the room to see his Step-Sister sprawled out on the ground, her head trapped under the barbell. She blames him for her getting stuck under the barbell cause she had to workout on her own today for him being such a perv last time. She tells him to get this thing off me and to help her up. Step-Brother instead goes round to her ass & pulls her yoga pants down. Spanks her, spreads and squeezes her ass cheeks to get a closer look. Step-Sister complains that he shouldn't be doing this but she but can't move. Step-Brother decides to finger her pussy and pulls out his cock & slides inside her tight pussy. Angle of doggy from behind to see his huge cock slide inside her as well as from front so you can see Step-Sister's face as she reacts to Step-Brother fucking her pussy getting pounded from behind as Step-sister moans. After a while of fucking her, he pulls out and Step-sister thinks he is done. But now her Step-brother wants to use her ass, she tells him to use lube if he's going to go near her ass and tells him to use some spit at least. Then a few seconds later he starts pushing his cock against her asshole to stretch her ass. He penetrates her and starts fucking her tight asshole. As Step-Sister's moans get louder, Step-Mom walks in again, in gym clothes ready for a workout herself. Step-Mom looks down at step-daughter and says it serves you right for being stuck up, I told you to be grateful for your Step-Brother helping you workout. Now you complained and look what's happened to you. She kneels down and looks up at Step-Brother. Go on, teach her a lesson. I need to workout next so he better hurry up and finish up in here. Go on says Step-Mom, she encourages the Step-Brother to wank all over her Step-Sister's ass. Step-Mom tells her to spread her ass and beg for it and he shoots his loads all over her ass, dripping everywhere. Step-Mom tells both of them to go get cleaned up so she can start her workout in peace.