Her heart began racing as soon as she heard his knock at the door. This was a gamble, but she had confidence in her observations. "Come in," she replied. He'd been coming to her for a few weeks now, twice a week, to work on core strength. At first she thought she was just giving kinky meaning to otherwise normal things, but over time it had become very clear. The cane stripes, red and raised, poking out the bottom of his...