Trapped in a cramped room, a brother and sister, both horny and desperate, give in to their taboo desires. The sister, her pussy aching, pushes her brother onto the bed, straddling him. He groans as she grinds her wet slit against his hard cock. She guides him inside her, gasping as he fills her. They fuck frantically, their bodies slapping together, his hands gripping her ass, pulling her onto him. He suddenly pulls out, his cock throbbing. She leans down, taking him deep into her mouth, swallowing his load as he cums hard.