The wheels in Ty's mind began to turn, thinking of possibilities. He loved the effects of the previous wish, and he wasn't ready for the fun to end, but what to do?
The answer came to him in a flash. "I wish," he muttered quietly enough for no one to hear, "that all the visitors to the zoo today would, upon seeing an animal in its exhibit, become enraptured by that animal. Their genitals will transform to the same species but opposite gender of the animal they see, their clothing will melt away, and they will stop at nothing to enter the exhibit and mate with the now willing animal. As they mate, they will transform into anthropomorphic versions of the animal, their changes completing with their climax. The person then regains his or her free will and becomes mentally aware of a choice, to mate with the animal again and become fully of that species or to walk away in their new body. Once they leave the exhibit, the choice is made and they are free to mate with either humans or their new species with no ill effects. If a child is born, it will be species appropriate to the full human or animal parent. And that completes my longest wish ever!"
Catching his breath, Ty saw a shockwave spread from him to the rest of the Zoo. No one else seemed to notice, except for one boy standing by the nearby Rodents of Africa House. He stared at the Cane Rat, his pants melting away, allowing full view of his rapidly shrinking and inverting penis, ending in a very small hole now between his legs. He closed the door to the rodent house just as Ty saw him break the glass of the exhibit. Nothing was now visible but the boys face, glowing with pleasure and rapidly feminizing as it shrank out of view.
Ty grinned, searching for more fun to watch.