Don Alberto, the lecherous old man, finds himself alone with Maria Blond, a virginal young beauty. He watches her, lustful, as she innocently touches herself, unaware of his presence. Catching her, he offers her a choice: obey or be exposed. Maria, trembling but curious, chooses obedience. She performs a hesitant handjob, her small hands struggling with Alberto's massive cock. He guides her, teaching her how to please him. Maria's innocence clashes with Alberto's experienced lewdness, creating a charged atmosphere. She learns quickly, her oral skills improving, until Alberto can't hold back, erupting in a sticky finish.