Two siblings, trapped together under one roof, find their eyes lingering a little too long, their bodies brushing a little too often. She's a sultry brunette, he's a muscular jock. One day, she catches him masturbating in his room, his thick cock throbbing. Instead of running away, she watches, her pussy throbbing in sync. He notices her, and they share a heated moment before she leaves. Later, he finds her in the bathroom, fingering herself, her moans echoing. He joins her, and they give in to their taboo desires, fucking hard and fast, their cries of pleasure filling the house. -