Yosuke's father remarried, so he had another mother. His stepmother was a beautiful, gentle, and extremely seductive woman. It was unknown whether it was intentional or not, but Yu often exposed her underwear in front of Yosuke, causing a young man full of vitality to think about it. One time, his father went out drinking and fell asleep after returning home. The mother and son helped his father onto a chair. Because his mother was so seductive, Yosuke's little boy quickly got erect. Because he hadn't had sex for a long time, seeing Yosuke's huge, erect cock made Yu's body feel extremely excited. She immediately offered to help soothe it for Yosuke, but the two didn't stop there. They gradually went further, made love to each other, and Yu even allowed Yosuke to ejaculate all of his essence into her while Yu's husband was still sleeping right next to him!!!
