It's been a year since I got married and started living with my husband's parents. My mother-in-law passed away five years ago, and my father-in-law retired early to devote himself to his hobby of kendo. My father-in-law is a big-boned, manly man, and my husband is a very slim, meticulous man, and they couldn't be more different. In this happy life, my only complaint is that my earnest husband only considers sex a means to make a baby and only engages in indifferent activities with me. And that day, after making a baby, I was masturbating in the bathroom when my father-in-law spied on me...