“Bath time is my only pleasure,” my wife always says. She loves taking long baths, and I often hear her humming happily behind the door. Then my adult younger brother quits his job and comes to stay with us while looking for work. After he moves in, her baths seem to get even longer. I assume the bathroom is simply the only place where she can be alone, so I occasionally remind her not to stay in too long. It never occurs to me that my brother is in there with her, their naked bodies entwined as they have sex behind my back...