"If we continue like this, we'll lose interest in each other as the opposite sex." Met and married as an alumnus and junior of a university club. My wife has only had experience with me as a man, and our sexual variety has been lacking; we even tried watching adult videos together, but we've been sexless for the past five years. During this time, I had the opportunity to draw male and female body sketches at work, with my wife and a male student as models. Seeing my wife embarrassed under the gaze of many, I felt excitement, and the fantasy of my wife being embraced by other men became irresistible.