My mother-in-law, Lily, came to Tokyo from my hometown to support my tingling wife before giving birth. I thought her wife would calm down because of her mother-in-law's concern, but she wasn't in a good mood, and I was ordered to ban masturbation if I couldn't allow her to feel better alone. Distressed by the sexual desire that accumulates day by day, I lied to Lily that it was a Japanese custom and asked her to take the place of her wife. Lily is confused, she is ashamed but she gradually accepts my cock ...