In the dead of night, an insatiable hunger stirs within the busty step-sister. Her nipples harden, and her pussy throbs, yearning to be filled. She finds her stepbrother awake, his cock already semi-erect. She straddles him, her wet pussy rubbing against his shaft as they share a passionate kiss. He fingers her, and she jerks him off, their bodies slick with sweat. She guides his cock to her entrance, and they start to fuck missionary-style, her big tits bouncing with each thrust. They're so lost in their pleasure that they almost don't hear their parents stirring next door. Just as he's about to cum, she quickly moves to suck him off, swallowing his load just in time.