Katy walks slowly backwards towards the bedroom. Her eyes are fixed on mine. Her hand is still under my chin as she guides me to follow her. She stops as we reach the side of the bed, then pats her hand twice on the bedspread.  I sit up straight on the bed, place my stockinged feet on the floor and look at the wall in front of me. This is how she trained me early in our relationship, and now it's a routine that I would no...