Emma Sirus, blonde hair cascading down her back, innocently enters David Lee Xxx's room, only to freeze at the sight of his engorged cock. David, mid-masturbation, blushes but maintains his grip, his step sis' presence only fueling his desire. Emma's eyes widen as she watches him stroke, her heart pounding. Unable to look away, she licks her lips, then tentatively reaches out, wrapping her small hand around his thick shaft. David groans, guiding her hand, teaching her his rhythm. She learns quickly, her touch eager, her breath coming in short gasps as she leans in, her tongue flicking out to taste his pre-cum.