Eriko married a man with a child from a previous marriage and suddenly became the mother of three boys at the age of 45. They all have different looks and personalities, so Eriko was worried about how to interact with her sons. Then one day, Eriko accidentally found out that all three brothers were virgins. Eriko, who loves virgin dicks, immediately took action. Feeling a sense of mission to "give them a first experience they'll never forget as a mother," Eriko visited her second son, Tomoki's room...