It's been about four years since my wife and I got married. This man is my real father. My real mother passed away and I live with my wife and my children. The woman here is my wife's mother. She is what we call a "mother-in-law." Sometimes my "mother-in-law" would come to stay at our house to see my wife, and we lived happily together. But then, of all things... my father had that kind of relationship with my wife's mother... I was speechless when I saw it and just stood there...