Perfect Posture

Around half an hour later, after their master had deemed Haimet cooled down enough to recieve her own string of beads, the two girls stood unsteadily on tip toes. He had added one last item before their training, dressing each in a pair of high heeled shoes similar to their tribes favored running shoes. The shoes **** their toes flat against the sole and brought their heels up into a high arch, the heel supported by an arch of metal that met the sole but provided no contact behind it. Despite their time spend wearing similar heels, the **** proportions of these versions left them unsteady.

While they stood teetering and testing their balance their master had been setting up a device in the corner. Once he lead them over to it they discovered its function quickly. The floor moved below them forcing them to start walking forward or be pitched backwards off the end.

"Now until it is time for your duty later tonight, you will practice here. Ill keep watch over you as you walk and help you correct your posture. Its best that you get used to these new shoes quickly as we will move onto having you carry your serving trays soon. Now, get moving and ill let you know when you need to correct yourselves." Their master said as he circled the two with crop in hand.

The devices started forwards and both girls stumbled to meet the initially slow pace. Both earned a quick swipe across their asses for the stumble. Once they got up to pace the speed slowly increased as he kept circling with his eyes appraising every curve and angle of their bodies. If they slowed or stumbled he smacked their behinds, and while they walked he used firm caresses to hone their posture.

Endlessly they walked as he slowly ramped up the speed, until both had to shift into a careful jog that made their bodies bounce in inviting ways. They panted through the gags as their chests heaved, coated in sweat and drool. He kept them training at that speed for long minutes before dropping it back down, and whipping them as they misplaced a step while slowing down. He continued the harsh training for a while, speeding up and slowing the devices until both girls began to stumble constantly from the strain, their rears patterned with crop strikes and body shining with sweat.

He let the devices come to a stop before forcing each girl to bend forward, where he tied their necks to a bar that kept them from rising. He fed them both water and fruit juice they could swallow through the gags then let them back up and shifted their bonds. he placed wide trays on their bound arms and secured them around the back of their necks and around their backs leaving their breasts served up on top. Then the training began again. This time the trays blocked some of their view and made them stumble more. Their master corrected them, having them hold their gaze straight forward.

Another hour of this training he started adding weights to the trays. The first few were dropped frequently, which prompted him to tugging on the string hanging from their rears, popping a heavy bead out each time they did. This only tended to make things more difficult, and both girls reached the end of their beads multiple times. Each time they did they earned a few smacks from the crop before the beads were popped back in, their breathless moans echoed in each others ears...