On one particular morning Cody waited by his gate for Hannah but to his surprise, her professor Karen arrived and opened his gate. Karen gave him his enema and his morning vitamin drink as she put on his pony boots. She also put on his training hood and secured the bit gag with the reigns into his mouth.
He could feel himself being lead away and then hooked to the training cart. As she climbed into the cart, Cody instantly realized that it was not Hannah because the weight in the cart was slightly more than his owner.
For the rest of the morning Karen drove him with the reigns and whip through an obstacle course that Cody obviously couldn't see.
The professor gave Cody no rest as he was forced to pull her and maneuver any way she wanted. At one point she whipped him several times to speed up, which Cody obeyed perfectly to avoid further whips on his back. It was a much more strenuous workout than Hannah ever gave him. However he did notice that Karen had a lighter touch with the whip than Hannah did. Although he believed Hannah simply enjoyed whipping him.
The training hood had no eyeholes and the ears were padded, so Cody had no clue where he went. However he was certain by the feel of a hard surface under his hooves that she had driven him onto a street. At some point Cody was stopped and tethered by his reigns. He was given some water and allowed to rest, still standing and hooked to the cart of course.
Several minutes later Cody could smell fresh coffee. He had been eating the vitamin slop for so long that Cody forgot what real food smelled like. He stomped his hooves several times trying to get someone's attention to let him have some coffee.
Instead he felt Karen get back into the cart and his reigns pulled hard right as the whip struck his back. Cody turned his body right and started pulling.
He was driven very fast, probably faster than he ever was. While she was driving him Cody felt the hard street under him again.
He could feel his heart pounding as he was forced to pull faster. It was his only purpose. Even the throbbing of his caged cock didn't matter while he was driven faster.
His body shook with each step as his hooves struck the ground. The only distraction from his focus on his running was the occasional crack of the whip on his back or ass.
Finally he was stopped and he could feel the droplets of sweat trickle down his body. Panting under his hood, Cody felt the driver step out of the cart. He felt soft hands caressing his ass and thighs.
The fingers touching him then found their way to his very large full balls and even caressed his cock through his chastity cage.
Cody felt his wrist cuffs unhooked from the cart shafts and locked together again behind his back. Moments later the hood and bit gag were removed. As his eyes were adjusting to the bright morning sun, Karen hooked the leash to his collar and tethered the leash.