I walked into the living room and stopped dead. My mom was lying on her back on a blanket with uncle Jim on top of her. They were both completely naked. We all three of us froze. Jim began to scramble up but I was quicker. I threw my bag of school books at him and hit him in the chest. Unbalanced, he fell backwards and I jumped on top of him yelling and punching his face. Mom was trying to pull me off and dodge my flailing arm at the same time. After a moment he got free because he was heavier and grabbed for his clothes but I went after him. When he bent to pick them up, I launched a kick between his legs. I don't think I connected very hard but he screamed with pain and fright and ran for the door with his trousers and jersey in his hand. I let him go then and turned on my mother. She was standing staring at me wide-eyed, her chest heaving and her naked body trembling. She didn't move when I stepped forward and slapped her in the face twice, very hard. I hit her a third time and she staggered and fell and curled into a foetal ball of fear. I told her she was a filthy fucking slut and a lot of other stuff while she wept spasmodically and tried to make herself small. Her terror fed both my rage and an uncontrollable desire to hurt her. I pulled my belt out of my waist and hit her. She tried to roll free but there was no room to escape between the furniture. I lashed at her breasts and thighs and ass as she rolled in a tangle of arms and legs, crying in pain and trying to get away from the blows I rained on her. Suddenly, she surrendered, flopping on her back with her legs slightly apart and I stopped too. Her body was marked all over with red weals from the belt. She knew at once what I intended when I started to undo my trousers but didn't protest. When I was naked, I got down and stuck my cock directly into her cunt. I bent to kiss her mouth and she tried to pull away but I wouldn't let her and then she gave in to that too. My tongue in her as well as my cock gave me total victory. I fucked her for a long time, holding her face between my hands and forcing her eyes to meet mine. And then I cummed. I left her like that, naked and weeping softly on the floor making no attempt to cover herself, my jism trickling from her open vagina. I didn't expect to find Jim at home. Aunt Rosie said she didn't know when he'd be back and, looking puzzled, asked what was up. I told her Jim knew and left it that. I gave mom time dress and to recover herself. I found her at the kitchen table, her bowed face still red from where I slapped her. She meekly said she was sorry and I saw a tear fall to the table. I helped her to her feet and pulling her to me, kissed her on the mouth. This time, she kissed me back. Thank you, she said. I love you.