Every Saturday afternoon, my wife and I are at the community center's swimming class. I'm an instructor for the adult course, and my wife teaches kids how to swim. My wife, whom I've been with since our student days, still maintains a healthy and toned figure to this day. However, as the years go by, my weight just won't budge… Because of that, one day during a lesson, I sprained my ankle. And my wife, who took over the adult class for me, started to act strangely...
