Yosuke's father remarried, so he gained a stepmother. His stepmother is a beautiful, gentle, and extremely seductive woman. Whether intentional or not, Yu often reveals her underwear in front of Yosuke, arousing the young man's thoughts. One time, Yosuke's father came home drunk and passed out, and both Yu and Yosuke helped him onto the couch. Due to Yu's seductiveness, Yosuke's manhood quickly rose. It had been a long time since Yosuke had been intimate, so seeing his erect and massive member made Yu's body tremble with excitement. She hinted at wanting to help soothe it for Yosuke, but they didn't stop there. They went further, making love, and Yu even allowed Yosuke to release all his essence inside her while Yu's husband was sleeping right next to them!!!