SDMU-592 SOD Romance x France Shoin New Mother 42 Years Old

Yuji, the son of a concubine, lost his parents and was taken in by his father-in-law, Kahoko. Kahoko was unable to have children, and as a result was treated coldly by her father-in-law. Worried about this, Kahoko's sister, Ayaka, proposes a plan to use Yuji's sperm to make it appear that Kahoko is pregnant with her husband's child. At first, Kahoko refuses, but her feminine instincts begin to stir at the sight of his young, powerful penis...