As for mother, the eldest son who I was divorced and had a hard time, and brought up three children, there were the care of younger brothers and sisters and a duty important one more. The Koto that it heals mother. Came to do Sex in Parent and child after when. As for the Hajime, as for mother who had resistance, it becomes natural the relations with the son now. But the eldest son will marry, and will let a younger brother substitute for oneself…As expected the reaction of mother? !