Michelle, the dominant sister, commands her brother to his knees, his cock already hard and straining against his pants. She unzips him, pulling out his thick, pulsating member, and begins to lick it like a lollipop, her tongue swirling around the head. She takes him deep into her throat, gagging slightly before pulling back and spitting on his cock. She smacks it against her tits, her brother watching, entranced. She turns around, presenting her ass and pussy to him. He grabs her hips, pushing into her, fucking her hard and fast, her cries of pleasure filling the room. She pushes back against him, their bodies slapping together, their fucking intense and uninhibited.