A wonderful thread. The image of a slavegirl on her knees with her hands/arms tightly and uncomfortably bound behind here back while she is trained to the apparently insatiable needs of her master's cock has always been overpowering. Watching the training as it progresses (hopefully very slowly) getting her acclimated to the speed and depth her master prefers; teaching her not to gag all create exciting images. To look down on a exhausted face, dripping with my cum and see the resignation in her eyes when I lean overand whisper, "Again bitch, and deeper, or I'll have to get out the crop and the clamps."