Lady Rubi is in the mood to punish her slave, ultimately with the cane, but just to add a little spice to his ordeal, Mistress Heather gags him with her dirty strap-on, fresh and straight from fucking another slave. If the strokes get too much for him, the last thing he wants to do is use the strap-on as a 'bit', as that means his cane strokes start all over again...