It's unforgivable for a parent and child to sleep together. She knows this in her head. And yet... Mio could not reject her son, Koji, who tried to comfort her in place of her husband. After a long period of sexlessness, her body, which hadn't been touched sexually for a long time, was longing for a hard cock. Mio's body was aroused by persistent caresses and ferocious piston fucking. Without even time to soak in the afterglow, she sought further pleasure, pushing past the limits of orgasm...