Rieko remarried last year to an older man with a child, and though slightly shy, she was happily enjoying her new married life. Her stepson was a well-mannered young man who adored her like a real mother, and she was genuinely content living as a family of three. However, she harbored a secret she couldn't share with her husband—her steadily increasing sexual desire. Though her husband was older, he was still strong in bed, and Rieko was satisfied with their intimacy. But as her urges grew more frequent and intense, she reached her limit. Boldly, she decided to buy adult toys to help manage her cravings. On the day the package arrived, Rieko intended to receive it alone, but her stepson happened to be there and ended up taking the delivery. He handed it to her without a word, but Rieko became convinced he knew what was inside. Overcome with arousal, the moment she opened the box, she gave in to intense, passionate masturbation alone. Though temporarily satisfied, her thirst remained unquenched. That night, she begged her husband for more. After their encounter, as she walked past her stepson's slightly open bedroom door on her way to the living room, she peeked inside and saw him lying on his back, masturbating. Realizing he had been aroused by hearing them, Rieko could no longer see her stepson in any other light. On a day when her husband was away, she finally gave in and seduced him. Their encounter was fierce and powerful, and Rieko cried out in pleasure at the strength her husband could no longer provide. Yet even then, her craving wasn't fully satisfied—and she began to desire even more.