Mia, the naughty stepsister, can't resist her brother Alex's allure any longer. She starts by teasing him, swaying her hips as she passes him, wearing skimpy outfits around the house. One day, she finds him napping and seizes the opportunity. She climbs onto the couch, straddling him, and begins to grind against his growing bulge. Alex wakes up, surprised but aroused, as Mia leans in, whispering seductive nothings while tracing patterns on his chest. Their make-out session intensifies, hands exploring, breaths hitching, until a sudden noise from downstairs breaks the spell, leaving them panting and eager for more. -