My wife, who had eagerly awaited the birth of our first child in our second year of marriage. Since this was her first pregnancy, it must have been quite challenging. My mother-in-law, Yumi, who lives in the next town, visited our home almost every day early in the morning to offer support. Naturally, due to my wife's pregnancy, my marital activities were temporarily suspended. Although it was unavoidable, the days of frustration were intense for me. The mature, swelling body of my mother-in-law, who lived under the same roof, was far too stimulating...