A unique scenario featuring simultaneous anal stretching on two women—one a perverted woman whose anal has been well-developed but whose pussy remains highly sensitive, and the other still unrefined anally. Through repeated enemas, double penetration, and various forms of expansion, the woman who finds anal penetration insufficient begins a new challenge: forcefully inserting an extremely thick dildo into her pussy, eventually reaching an abnormal and erotic state with four connected dildos strung together like beads.