夫のいない涼子。寂しさのせいか朝からワインを飲む。性欲を満たすため息子と関係があり、息子は当たり前のように母親の体を求めてくる。予備校に行く前の息子に、時間がないのでフェラ抜きで満足させる。入浴後ワインを飲んでいると、昔関係のあった実弟が来る。涼子は、再び実弟と関係を持ってしまう。帰宅した息子に浴室でフェラ抜き、そして今夜も息子を相手に濃厚なSEXを行なう涼子だった。Ryoko is without a husband. She is a drinker who drinks wine in the morning due to her loneliness. She has a relationship with her son to satisfy her sexual desire、 and he wants his mother's body as a matter of course. Before going to a prep school、 she satisfies her son without giving him a blowjob because she has no time. While drinking wine after taking a bath、 her own brother、 with whom she had a relationship in the past、 comes over. Drunk、 Ryoko has relations with his brother again. Ryoko gives her son a blowjob in the bathroom when he comes home、 and has thick sex with him again tonight.