In the confines of a small bathroom, a brother and sister, both horny and frustrated, find solace in mutual masturbation. She strokes her wet pussy, her other hand pinching her hard nipples, while he jerks off, his thick cock glistening with pre-cum. Their eyes meet in the mirror, and the tension between them snaps. He turns to her, his cock bobbing, and she spreads her legs, inviting him in. He slams into her, her tight pussy stretching to accommodate his size. She moans, her voice echoing off the bathroom walls as he pounds her, their bodies slapping together in a primal rhythm.