My wife's pregnant, so her mother, Yayuri, came to town from our in-laws to support us. We're in a cold war with my wife; alcohol and masturbation are forbidden. Despite being drawn to Yayuri's allure, I managed to maintain my composure. One night, after confiding in her about work and marital struggles, she comforted me gently by stroking my head. But that wasn't enough—she reached out and teasingly touched my throbbing crotch, apologizing for causing trouble because of our daughter...