The endless teasing of the nipples brought the mother to ecstasy, and the son couldn't resist ejaculating inside her. (Hanayanagi Rikka VENX-306)

The son, who had always been bothered by his mother's dark brown nipples, decided to use a breast pump to stimulate them and began gradually getting his mother used to nipple sex. At first, the mother was only confused, but as time went on, she became immersed in the unknown pleasure she had never experienced before and gradually accepted her son's unusual sexual fetish...