The young wife, Natsuki, was living a blissful married life. However, one day, her father-in-law, who had his eyes on her youthful and voluptuous body, forcibly embraces her. From that day on, a forbidden pregnancy sex begins, something she can't tell anyone about! Though she endured in silence, unable to tell her husband... her sanity frays at the unthinkable reality of being fucked and creampied by her father-in-law in their own home, with her husband right next door. Driven by desire for her father-in-law's cock, she starts shaking her hips on her own.