Mitch lowered his head and ears in fear of what Nathan might do to him. He brayed plaintively. Nathan just smiled and caressed Mitch's well-toned buttocks.
"Oh, don't worry, I won't do anything too bad. You might even like it." Nathan said as he scratched under Mitch's chin. Bringing the amulet to bear, Nathan spoke his next wish. "I wish that you, Mitch, were an inflatable donkey toy with all your faculties intact." Mitch shook his head in dismay and brayed unhappily. But, to no avail as he felt himself transform again.
It wasn't so much the stretching as before, but more of a lightening that Mitch felt. Mitch's fur receded into his body and skin which was turning a soft shiny brown color. His body rounded out, smoothing out muscle curves and generalizing his shape. Mitch's legs become rigid as his body become a container for air. Mitch was not able to bend his legs and soon not able to move any other part of his body. He shortly became nothing more than an inflatable donkey. Though he could still think and feel, he could not move. Mitch did not like this any more than being a simple donkey. Now he was at the complete mercy of anybody.
Nathan grinned at his new toy. He ran a hand over Mitch's shiny rubber body, squeaking it. Nathan looked under Mitch and saw a rigid, inflated penis, and laughed. "Oh, look at that. My toy is anatomically correct!"