Aika lives with her daughter and son-in-law in a two-generation household. Recently, she's been worried about their strained relationship and secretly observed them... It turns out that her son-in-law Shinji's dick is too big for his wife to take. Aika, who hasn't had sex with her husband in ages, becomes captivated by his massive cock. 'For the sake of my frustrated son-in-law...' she tells herself as she seduces him. Shinji becomes transfixed by her lewd body and can't help but pounce. As planned, Aika starts enjoying his huge dick day and night, stealing glances from her daughter.
