Stealing the husband of my beloved mother-in-law

Who has been married for two years and she lives with her parents-in-law. Ai's husband is always focused on work, so he is superficial in that matter and they haven't had children for two years. Who noticed that the marital affection between her parents-in-law was very strong, they often made love to each other and she became jealous because of it. Deciding to seduce his father-in-law by talking about his suffering, soon the father-in-law became greedy for his beloved daughter-in-law. Since then he has fucked Ai twice a day and is determined to help his daughter-in-law get pregnant so that he can have a grandchild to carry.