One night while Rin was home alone, an older guy suddenly shows up and she lets him inside. Playfully spending time together, his eyes lock onto her accidental upskirt glimpses. That gaze awakens her erotic feelings, and she gets caught masturbating by him. Through sheer, revealing massage, his fingers deeply entwine with her slit, then she's licked by his tongue. Her soaked slit slowly takes in his hard cock as it penetrates deep inside.