Bored and alone, a curious stepsister sneaks into her stepbrother's room, finding him napping. Intrigued by his bulge, she gently strokes his cock through his shorts, feeling it grow. He awakens, startled but aroused by her illicit massage. She frees his throbbing member, wrapping her petite hand around it, working it expertly. He groans, hips bucking, as she brings him closer to the edge. Just as he's about to cum, they hear footsteps, forcing her to quickly withdraw, leaving him frustrated but sated.