Rosalyn Sphinx, the sly stepsister, finds out her friend has been riding her bro's cock. Enraged, she plots her sweet revenge. She corners him, her eyes burning with lust and anger. "You fucked my friend, now it's my turn," she purrs, pushing him onto the bed. She straddles him, her tiny tits bouncing as she grinds on his cock. She leans down, taking his length into her mouth, sucking him hard and fast, her hand working his shaft. She wants him to cum, to mark her as his, to make her his incestuous secret.