Rosalyn Sphinx, the seductive step-sister, finds herself alone with her brother on the bed, her black hair cascading down her shoulders. She's been eyeing his growing bulge, and she can't resist the temptation any longer. Sliding off the bed, she kneels between his legs, her eyes locked onto his. With a sultry grin, she unzips his pants, revealing his throbbing cock. Rosalyn's tongue flicks out, tasting the pre-cum beading at the tip before she takes him deep into her mouth, her head bobbing rhythmically.