I have lived with my father-in-law at my husband's family home for three years. We got along well and my marriage seemed happy, but our sex life left me deeply frustrated. My husband only touched me on ovulation nights when we were trying for a baby, and he always came before I felt any pleasure, then fell asleep satisfied as we drifted further apart. One night, while I was drinking water alone after sex, my father-in-law appeared and told me he could see that I was sexually unfulfilled.