OKAX-587 A son touches his mother's thigh under the kotatsu, leading to a secret affair while the father is away. 240 minutes.

A son who sees his mother's mature body in the bathroom starts to see her as a woman, and at night he finds her napping under the kotatsu. With his father absent, he molests her under the kotatsu, and the aroused mother responds despite trying to hide it. The video runs 240 minutes.