Stepbrother and step-sister have a very strange and complicated relationship. He is constantly jealous of her and trolls her about her weight. Now he found out that his stepsister fucked his friend. The guy blackmails her that he will tell her parents and demands that she expose her belly. When the girl obediently bares her belly, he hits her in the belly with all his might with a boxing glove. She moans and hurts but continues to show him the middle finger. The guy hits again and again. Then he takes off the glove and hits her with his bare fist. She is unbreakable, maybe she likes it?