She has been married for over 10 years. Although she has devoted herself to her husband and children, her sex life with her husband has fallen apart, and she has been spending her days in frustration. Then, her son's junior colleague, Yuuki, confesses his love to her, and, pleased that he desires her as a woman, she gives him a blowjob to bring him to orgasm. At first, their physical relationship began as a motherly one, but gradually her lustful nature as a woman began to emerge, and Yuuko was especially excited by his young, hard cock, becoming captivated by the young man's strong, erect cock...