One day, Ogura, who works for a cosmetics manufacturer, ends up sharing a hotel room with one of her subordinates on a business trip. While she is on guard because she is a virgin, she is suddenly attacked and ejaculates inside her vagina multiple times. She gets addicted to the persistent deep kisses and keeps doing it all night. After an instant ejaculation, she is penetrated again in an endless loop! Her "boyfriend's private pussy" is defiled by the virgin's virginity.