Since our marriage, we've been trying to conceive a child, but we haven't been successful and have been struggling with it. Moreover, my husband only engages in bland sex because he desperately wants a child. Amidst this monotonous life, my father-in-law, who has been living with us for about a year, caught me masturbating. It seems he saw through my sexual frustration at that moment, and he stealthily approached me from behind while I was pleasuring myself...