Cathy and I had been married about 4 months when I got this surprise. We were living with her mom and step dad Jim ever since we had gotten married to save money. My father in law Jim had badly broken his leg about 2 months earlier. He could get out of bed to use the bathroom but that was about all. He ate most of his meals in bed.  I found out my mother in law, Mary, was very sexual the first time we were alone together...