As she watched the girl collapse to the ground in a heap of hollow skin, Christine suddenly realized that Bronwyn had never explained to her exactly how this magic zipper was supposed to work. But it was too late to do anything about that now. She was going to have to figure it out herself. Thankfully, Bronwyn's body had landed on the ground with the zipper-hole facing up, so it wouldn't be that difficult to just step inside.
Cautiously, Christine padded over and put a paw down into the opening, half-expecting some magic dust to pop out the moment she touched it. Nothing happened, so she went ahead and put her other front paw inside. She was trying to be as careful as possible - the disturbing thought crossed her mind that she might tear the skin with her sharp claws, and she had no idea what would happen then. Slowly, she slid her forelegs toward the arms of the skinsuit.
Before long, Christine was deep enough into the opening that she could stick her head inside as well, maneuvering it to match the costume's head. Already it seemed to be working - the skin was still deflated and draped over her upper body like a towel, but the parts of her body that were covered by it were adapting to match their shape and size. Her hands no longer felt like paws. Even if they were still kind of droopy, she had fingers again! And she could use them to reach behind herself and pull the rest of the suit around her feline backside.
Once her body was fully inside Bronwyn's, she started to pull on the zipper - and immediately got it caught on her tail. In all the excitement, she'd forgotten about that unfamiliar part of her anatomy. Christine quickly grabbed the tail and stuffed it inside one of Bronwyn's legs, contemplating the fact that (if this worked) she was about to become a human piloting a leopard piloting a human. Checking to make sure there was nothing obstructing the opening, Christine tried pulling the zipper once more, and it easily zipped up all the way.
Instantly, Christine was no longer a leopard awkwardly disguised inside a human suit. She was simply human again. And she was all ready to rejoice, but then she remembered that she was now a human inside the leopard enclosure at the zoo! Pulling herself off the ground, she went to the service door a few feet away. Christine nearly panicked when she saw the combination lock on the door, but then remembered what they had drilled into her at orientation: the code to get out of all the enclosures was 1-9-7-3. They'd told her it was very unlikely she'd need to remember that as a mascot, but for some reason she had, and now it was coming in handy.
Only after the door was tightly closed behind her, and Christine knew she was alone in the corridor that ran below the zoo, did she have time to think about her new, distinctly different human form. She started to take off the zookeeper's uniform that Bronwyn had commandeered. As she pulled the shorts down, she felt an unexpected bulge underneath which she quickly realized was a penis. Not that there's anything wrong with that, Christine thought to herself, but she hadn't realized that would be part of the package. Granted, she had only met Bronwyn as another female leopard (though apparently the girl had intimately met Christine)...
Christine had to put that distracting thing between her legs at the back of her mind for now. She still had to get out of here before anyone started to wonder where the mysteriously appearing leopard had gone. And right now, she couldn't exactly escape suspicion by saying "I'm Christine, I work here". The fewer conversations she had to have from inside another person's body, the better. She spotted what looked like Bronwyn's clothes, neatly folded up and lying nearby, and quickly changed into them.
Thankfully, Christine knew very well how to navigate these tunnels - she used them all the time to get around the zoo in costume without being seen by the kids. Now she was in a very different kind of costume, and she definitely didn't want to try to entertain children right now either. A few dark, dank hallways later, Christine had made it safely out of the confines of the zoo, and found herself standing in the parking lot. But all that was just the beginning of her journey in an unfamiliar body. Where was she going to go now?