"What are you doing?" Chisato hurriedly straightened her clothes. She had been masturbating since seeing her son Ichiro off to school. And yet, just as she was about to climax, she suddenly looked up and saw Ichiro there. How could she hide from this situation...? As Chisato was racking her brains, Ichiro suddenly lunged at her crotch. He began licking her with ferocious force. Normally, as a mother, Chisato would have scolded him, but on this day, his masturbation had been interrupted and Chisato's body was brought to the brink. His ferocious cunnilingus brought her to orgasm again and again...