Naoki, the son, has always been affectionate and clingy toward his mother, Shizuko. Today, just like every other day, they snuggle together under the same futon. As they sleep, Naoki suddenly opens his eyes and begins caressing Shizuko's body with his hands. His words grow bold—“Mom’s body… I can’t take it. I want to be crushed by you, completely.” He spreads his thighs himself, inviting her to indulge in his big ass. Awakened by her son’s heavy breathing, Shizuko is startled, yet finds herself unable to resist his desires. She silently lowers her large buttocks down, completely smothering Naoki’s face. Her own breath grows hotter, and their forbidden bond sinks even deeper.