Reiko married a man who had a partner, but her stepfather is still a virgin because he can't have sex with her due to his huge penis. After learning this, she is conflicted, but she shows her maternal instincts and takes his virginity. However, due to the strong sexual desires typical of young people and his uncontrollable penis, Reiko finds herself drowning in the big-cock sex she has never experienced before... "My body was craving your cock." Reiko can't stop riding the big cock that fills the back of her vagina. She can only love big cocks now!!