Yui and Mio, a lesbian couple, begin living together with Chisato. Yui, intrigued by the younger Chisato, draws close to her, exchanging deep tongue kisses and passionately licking her entire body. The two pleasure each other with intense cunnilingus, indulging in wild lesbian sex. Later, Chisato makes a move on Mio, and upon discovering this, Yui punishes her with a three-way lesbian session. Chisato endures spankings on her big ass while being pleasured with tongues, serving both women with double handjobs. Yui and Mio then link their mouths in a chain of cunnilingus, climaxing repeatedly as they're brought to orgasm by the younger Chisato.