Trapped in a small apartment, a brother and sister, both horny and frustrated, can't resist their growing attraction. She teases him, stripping down to her panties, while he pretends to read, his cock tenting his shorts. When she straddles him, rubbing her pussy on his thigh, he can't hold back. He flips her over, ripping off her panties, and fucks her hard against the wall, their moans echoing through the empty halls.