A new family after remarriage. The father-in-law and stepc**** Jun are also on good terms, and it was supposed to be a happy scene... A father-in-law who can't stop lusting after a J● boy who grew up with a big butt ready to eat. He finally begins to train her as a creampie masturbator by dousing her with aphrodisiacs and having sex with her as much as she wants. At night, she has sexual intercourse with her big ass, plays with a big ass toy, inserts it, and gives it a blow job...and Jun, whose sense of reason has come loose, straddles her father-in-law and forces his pussy on her own. She turned into a sexual monster who shakes her big ass and devours her stepfather's dick with a pile driving piston.