The mother of three sisters remarried. A man has been added to the family that had never had a man before!! The three sisters are of marriageable age and are curious about their stepfather's dick!! The eldest sister is bold and proactive. While their mother is dozing off next door, she seduces her stepfather and has sex with him in the living room!! The second sister is a bit shy and perverted. She uses her studies as an excuse to ask for sex education!! The third sister is very innocent. She had always dreamed of sleeping with her stepfather and sneaks into his futon!! A naughty life that they keep secret from their mother begins now!!