Caught up in her own world, the cousin doesn't hear the door creak open. Her eyes widen in shock as she sees her cousin's boyfriend standing in the doorway, taking in the sight of her naked, masturbating body. He bites his lip, his cock twitching at the unexpected view. She freezes, her fingers still buried in her pussy, torn between embarrassment and desire. He steps closer, his intent clear, and she makes her decision, pushing her fingers deeper, her hips bucking as she continues to pleasure herself in front of him.