Duncan Saint, the horny stepbrother, can't resist the sight of his stepsister in her bikini. He approaches her, his massive cock already hard. She tries to resist, but his confident, pleading eyes and her own growing desire prove too much. She tentatively wraps her lips around his thick shaft, tasting him for the first time. He guides her head, his fingers tangling in her hair, pushing her to take him deeper. She struggles at first, her inexperience showing, but she soon finds a rhythm, her hands joining the motion, her mouth stretching wide to accommodate his size.