It's been years since I last visited my wife's parents' house. After a break from work, I took a long weekend, and I figured my mother-in-law would be feeling lonely. My mother-in-law, Emi, greeted them with a warm smile and treated them to a dinner table filled with her daughter and son-in-law's favorite foods. The son-in-law left the table, and the mother-in-law enjoyed a friendly time. My mother told my daughter that she wanted to see her grandchild. My daughter said she loved her husband but didn't want to have sex. He wanted to, but she didn't want to, and she got up angrily. Even if my daughter didn't like sex, my son-in-law probably didn't. He'd probably get pent up. I wondered if my daughter and son-in-law were okay. The next day, my daughter went out, so I went to the bedroom to ask my son-in-law for help, but I caught him masturbating. Feeling sorry for him as he frantically tried to hide, Emi apologized and helped him masturbate. Emi is a little excited by the erect thing she has not had in a long time, and they both feel good. Feeling guilty towards her daughter, Emi tells her son-in-law not to tell her daughter, but...