A couple who grew up in a rural area, childhood friends with a four-year age difference. They went to different universities, became estranged for a while, but reunited after becoming adults. Even after marriage, their relationship was more like an extension of friendship, and both were indifferent to sex, but one day in their twenty-fifth year of marriage, the husband suddenly confessed to his wife that he had a cuckold desire. "Even though we hadn't done it for nearly twenty years, I suddenly wanted to do it with you again... If you say something like that, I can't just reject you outright..." After several months of struggle, the fifty-year-old wife mustered the courage to decide to accept the stranger's rod.
