Bored and restless, a sultry teen sister can't help but fantasize about her brother's growing physique. She starts masturbating, her fingers dancing over her clit, while he's in the next room. Caught red-handed, she's mortified, but their argument escalates into a heated exchange. Later, they find themselves drawn together, naked and aroused. Her eyes widen as she takes in his massive, throbbing cock. She can't resist the urge to taste it, to feel it inside her. Just as they're about to cross the final boundary, a sudden noise freezes them in place.