Aoi's husband fell ill soon after her daughter was born, and Aoi is now a single mother. Even now that her daughter is married, she still lives with Aoi. One night, Aoi peeks into her daughter and her husband's nighttime activities. Fascinated by their beast-like sex, she desires his powerful cock and ends up asking for it herself. "Cum inside me until I get pregnant..." she begs, and today Aoi has sex again...