John and Carrie headed for the changing rooms, each holding their costumes.
They each entered a changing room and began to undress. John removed his jeans with a flop and as he bent down to pick them up, he saw it.
It was the long tawny lion tail. He sank to the floor, checking first that Carrie wasn't wearing it. He tugged it under the gap between the rooms.
He quickly turned and got the zebra costume. He slid that back and left it on Carries changing bench.
John stood up again, holding the costume in his hands. It was heavy and shaggy mane was itchy on his arm. There was something about the lion which had entranced him from the moment he saw it. Something about it's long flowing mane and powerful looking face. He stared hard at it, observing every characteristic of it.
Finnaly he tore his eyes from it. He unzipped the front and stepped in, the tight lycra gripping his body.
He heard the zip from the other changing room and heard the sound of the hooves clattering on the floor. Then he heard the zip again as Carrie sealed herself in her costume. He listened intently for the stunned squeal as she realised that she was not wearing a lion costume but it never came.
He turned his attention back to his costume. Rolling it up his chest satisfactiorally, he couldn't help but notice that where he had the costume on was considerably sticky. But he quickly dismissed it as the material. He rolled it up to his neck and flicked the muzzle over his face.
The unexpected weight of the head knocked him to the floor. He tried to stand again but ended up almost falling out the suit. So he zipped up the chest zip and fastened the head onto his shoulders and tried again to stand up.
This time however, he managed to stand up, although his neck hurt from the weight. He flung open the door. There stood Carrie. Her busty body had filled out the zebra costume perfectly.
Carrie looked at John, although her mask hid it, he was sure she was angry. "You swapped out costumes!" She snapped.
"I just didn't want to be a zebra, thats all." John replied timidly.
"Well, now you've tried it, time to give it back." Carrie growled. John placed a heavy paw on the zip and slid it, but it was stuck.
"I'm stuck" John panicked. Carrie put a hoof above it and slid it down. It unzipped all the way to the bottom. But then to the suprise of the two of them. It fell off. John tore at his neck zip but that too fell off.
"Oh god, I'm stuck in this costme!" John moaned. Just then, the buttons on Carrie's costume burst off, firing in all directions across the store. She tugged at the fabric with a hoof but she too was stuck in.
John's costume bulged, powerful muscles forming. He could no longer take the weight on his legs and fell to all fours. He stared in horror at his new body. He looked at himself in the mirror inquisitavley. He closed one eye and lion in the reflection did so too. He now had complete control over the costume.
Carrie's changes had comenced too. She had control over her body and was busily swishing her tail against her new backside.
John could smell her and the various other animal smells coming from all the other costumes. He could here the other customers as they collected their costumes and began to transform.
Suddenly, John felt a sharp pain in his crotch. He looked back down at his rear. There was three large bulges forming between his hind legs. It pushed out into a long red cock and two large balls. His cock was incredibly hard and he could smell the precum dripping from the barbed head.
Just then he heard a noise from behind him. It was...