It was always warm under my mother's futon, even on freezing cold nights. On a cold, snowy night, a mother invites her grown-up son, "Do you want to sleep with your mother because it's cold?" While being healed by my mother's body temperature and smell, my crotch feels like a woman's body that I didn't feel when I was little. Found by mother, erection becomes intense. My son couldn't take it anymore... [* There is some disturbance in the image and sound]