Myzeray has confided in me that she'd like to be in better shape, mainly her tummy. What works best for this? Pilates, that's what. But she has asked me to help her. Enter master frederick, fitness instructor! I bind her hands behind her back and tie her ankles together, and run the rope up over the headboard and down... And up to her throat. So you know what happens if she lowers her feet too far... Being the sadist that I am, I have her perform leg lifts on command, keeping her motivated with a paddle and riding crop, until her abs give out and her legs can't lift any longer. Then it's fun time for me. I watch her struggle for air for a bit as I finger her, then untie the lead rope so I can get a tighter pull on her throat . I pull it tight and hold it, putting her out. She ***** with a mouthful of my cock, and then as a reward for a good workout I roll her onto her side and fuck her from behind, with a good hand throttle thrown in for good measure.