Steamy incest - Mother and child bathing

It's been six months since I welcomed Miyu, who is young and has a great figure, into her house as my stepmother. My son, in the midst of puberty, was stimulated by his sexy body and couldn't hold it in and started peering in the bath. One day, as usual, she peered into the bathroom through the gap in the window and found Miyu, masturbating violently with all her might. Miyu's lewd body stuck to her mind, and she couldn't control her desires anymore. Miyu also refused at first, but once she experienced the pleasure of powerful sexual intercourse left to her youth, she gradually began to take over herself...