It's been nearly a year since I started living at my husband's family home. My father-in-law, who lives with us, retired early and is deeply immersed in his hobbies, which my serious husband doesn't seem to appreciate. My steady husband and my playful father-in-law are polar opposites. This difference is evident in our sex life; after having sex with my husband, I secretly console my unsatisfied body. One night, while I was masturbating in the bathroom, holding my breath, the door suddenly opened, and to my surprise, my father-in-law walked in...