My pregnant wife was hospitalized nearing the end of her term, so my mother-in-law Kanako came to help out around the house for a few days. I had been interested in my mother-in-law's voluptuous body, which is the complete opposite of my wife's. Since I found out my wife was pregnant, I haven't had sex with her. My mother-in-law has been without a man since her husband passed away, but I never expected to end up in a relationship like this with her...