"No, mister! Please! I'm sorry! Look, I can can fix thiii aawhinney." Mike cut off the boy's pleading with some brushing of his throat. He could tell the kid was terrified of becoming an animal, and figured it would be suitable punishment to take him all the way.
Once started, the transformation worked quickly. Mike had to step back as the kid's body bulked up, becoming that of a Clydedale
stallion. The transformation excited him now, and he began to have a strong desire to see the boy as a normal horse.
Either the boy had resigned himself to becomng an animal, or his brain was chaing along with his body. He remained still even after his weight and size pulled the ropes free, falling to all fours in the stall.
Mike was amazed by the huge stallion's appearance as he finished the boy up - the animal was beautiful, powerful. He found himself rubbing up against the former human as he used the brush to complete the boy's equine head, drinking in the rich scent of musk and sweat.
Mike felt confused, but the desire to be with the huge Clydesdale stallion overpowered everything else. He was dimly aware of strange sensations coming from his rump, and then sufddenly remembered that he was now a she. At that moment, the stallion shifted behind her, and with a sudden jump, slid across her back. Mike felt a hard prod above, then the massive equine penis found her slick opening and pressed in.
Any thoughts to throw off the male were lost as Mike's brain was overwhelmed by a mare's passion and desire. Pleasure and instincts merged in her mind, and she was oblivious to the fact that each thrust was making her more normal Clydesdale mare.