In a rush, a stepsister doesn't have time to get used to masturbating when her stepbrother walks in, catching her mid-act. His instant boner surprises her, but she decides to make the most of it. She sucks his cock, her inexperience making it all the more tantalizing. He lays her back on the bed, her legs spread, and enters her, missionary-style. Her pussy stretches to accommodate his size, and she gasps, her body tensing as he fucks her, their stepfamily taboo making it all the more intense.