My mother-in-law, Yuka, has been living with me since yesterday, worried about my wife who is pregnant and nervous. Yuka’s support should alleviate my wife’s anxiety, but my wife’s frustration only increased, and I was at the limit of my patience because smoking, alcohol, and masturbation were prohibited. Having such a frustrated feeling, I reached for Yuka’s underwear while taking a bath. The next day, when I couldn’t stand it and was masturbating with Yuka’s underwear, I was witnessed by Yuka …