My wife, Sara, doesn't do anything around the house. She leaves all the cooking, laundry, and cleaning to me. She makes me wash her body in the bath and give her a massage before bed. We only have sex when she feels like it. Just when I was starting to get fed up with this lifestyle, Sara's twin sister, Saki, came over. I couldn't help but vent my frustration. Then my sister-in-law asked me for something outrageous...