Haruo, my son, was a virgin. Accidentally eavesdropping, my mother, Fumiko, became increasingly aroused due to her usual frustrations. She schemed to somehow take Haruo's virginity, and managed to do so as planned... but Haruo's penis was not only flaccid, it became even more erect, seeking a rematch. Initially, I thought it was because he was young, but no matter how much he ejaculated, his immediate erection due to his extraordinary virility made even the seasoned Fumiko back down. Seizing an opportunity, she fled to the bath, but Haruo intruded...