Narumi, a cool wife, invites her junior colleague from her office days to her home and proposes a husband and wife swap. She is a lewd wife who invites her partner's husband (her former colleague) and lets him peek into the cheating sex of her husband (her former boss) and his wife, who is her junior, and holds his dick. Even the serious husband shows off his unparalleled love with the erotic invitation of the perverted couple! Narumi, a perverted wife, gets her husband's dick inserted into her pussy and cums with excitement and drools on her husband's dick.