Blindfolded and bound, the eager sister listens intently as her brother approaches. He teases her with his breath, his touch, his throbbing cock pressed against her thigh. She moans, writhing in anticipation, her pussy dripping with desire. He takes his time, exploring her body, tasting her, before finally sliding his massive cock into her tight, waiting cunt. She gasps, her hands clawing at the sheets, as he begins to pound her, his balls slapping against her ass, his grunts filling her ears.