"Whoa... this is amazing..." giggled Carrie goofily as she wiggled her tiny hands and feet.
"Are you alright?" said John, feeling Carrie's enormously inflated body.
"I'm so full... feels like I'm stretched so tight..." she said, trying to move but only managing to wobble back and forth.
John pressed a hand to his wife's side. It was like touching a balloon. He pressed harder. Carrie moaned softly as the air was shifted around, making her breasts even bigger. "Holy crap".
"Heehee, keep doing that!"
He moved to her breasts and gave them a squeeze, making her squeal with delight and making her ass swell up with their air. Then he circled around her spherical body, poking her puffed-up vulva and sending tremors through her taut form. "Shouldn't we, like, return you to normal?"
"Who cares? God I'm so turned on... feels like I could climax any second".
John's eyes widened. He turned to the vendor. "How does she go back to normal?"
"I can think of a few ways..." said the vendor with a smirk.
"Such as?"
"How about this?" The vendor winked as he pulled out a pin.
"No wait-" started John in a panic as the vendor's hand moved towards Carrie. But it was too late.
BANG!
With a deafening pop, Carrie exploded, throwing John, the vendor, and the balloon cart several feet away. John got up, trembling. The explosion had left a large crater in the ground, and little fragments of Carrie, looking like shreds of rubber, were drifting gently out of the sky.
"Carrie..." whimpered John, tears in his eyes. He turned to the vendor angrily. "You... you killed her! I'll -"
"WOOHOO! THAT WAS AMAZING!" came a familiar voice.
John whipped around in shock. "Carrie?"
"I'm heeere!"
John reached out and grabbed a rubbery piece of Carrie as it floated towards him. It had her lips on it. Like as if someone had drawn lips on a piece of skin-colored rubber.
"That was like the best orgasm I ever had!" said Carrie's disembodied mouth ecstatically. "Again! Let's do it again!"
"You're... still in there?"
"Of course she is", said the vendor, pulling out a broom. "Cartoon physics means that you can suffer the most spectacular injuries and remain unharmed. Getting blown up, squashed by an anvil. run over by a car... nothing can kill you!" He started sweeping up the pieces of Carrie.
"So it didn't hurt?"
"Puh-leese", said Carrie's lips. "Like I said. Best thing ever".
"Yeah, maybe we don't want to do that again. Seems a bit violent".
The lips blew a raspberry. "Coward~" it teased.
The vendor, meanwhile, had swept up all of Carrie's pieces in a little pile. "The last bit, please?" he told John.
John complied, tossing the lips onto the pile as they blew him one last kiss. Then the vendor scooped up the remains and emptied them into a cocktail shaker, gave it several good shakes, and then opened it and poured it out. Out trickled a fully-formed and intact Carrie, albeit completely naked as well. As she covered herself up, John rushed to give her a hug.
"I'm so glad you're back!" he said, covering her with kisses.
"Haha, same! Although... can I get dressed now?"