KSBJ-059 The mother-in-law who seduces her daughter's husband, Mayuko Kashiba

I am a 38-year-old company employee. My mother-in-law came to help with my wife's childbirth. She is 55 years old and currently a widow. Since I married a young wife, she is close to my age and treats me well. I never thought that something like this would happen with my mother-in-law while my wife was in the hospital. Maybe she was also lonely. Although I felt bad for my wife, I became obsessed with her voluptuous and alluring body.