Steamy incest - Mother and child bathing

His son Wataru had a "sexual fetish" that he couldn't tell anyone else. When my father is leaving the house on a business trip, he peers at my mother taking a bath. One day, as usual, Wataru was peering in, my mother called out to me, "Let's go in together." That was the beginning of the mistake. And from that day onwards, the bathroom became a forbidden place for parents and children.