"I do believe this is going to be quite an interesting weekend." John said with a smile. Carrie nodded and reached over and tugged her balloon down to her. She grasped the nozzle and bopped it against her foxy husband.
"Well, lets see what kind of balloon I am?" Carrie drawled. John watched in rapt attention, his pert and rounded ears focused on Carrie.
She untied the string around the balloon's nozzle and brought it up to her lips. Gently pressing the balloon to her face, she inhaled slowly. The sudden rush of gas surprised her and Carrie couldn't help but gasp in more of it. John watched as the gas began to work on Carrie. Her belly took most of the gas, swelling out into a round, pregnant look.
Recovering from the shock of the gas, Carrie pinched shut the balloon and it's transformative gas. She looked down and let out a purr at the sight of her belly. She lifted up her shirt and ran a hand lovingly over her distended flesh. She could see a slight sheen on herself. A smile pasted itself on Carrie's face. Watching John transform was one thing, but to have it happen to herself was so much better.
Carrie kept one hand on her belly, rubbing it, while the other brought the balloon back up to her mouth. She let the gas easily flow in, the shock expected now. The gas, having filled up Carrie's belly, sought other places to fill. But, finding none, began to make Carrie more appropriate for holding gas. Starting from her belly, Carrie's flesh gained more a sheen and soon turned a pinkish color.
Moans and purrs escaped Carrie as she continued her transformation into a balloon animal. The sheen and color spread to the rest of her body, making it hollow and rubberized. The gas stretched Carrie's body, and her clothes, which tried vainly to hold in the burgeoning balloon. With a splendid ripping sound, Carrie's body burst free from the confines of her clothes. She was fully rubberized and very pink, her belly less round now that the rest of her body was nearly as plump.
Carrie paused briefly before inhaling the last of the balloon's gas. She moaned in pleasure as she felt her hands plump out into comical paws. Her breasts grew large and sumptuously pert. She giggled when she felt a long and rounded tail pop out of her like a pool toy's piece inflating suddenly into shape. Her face grew a muzzle, whiskers sprang out around a light pink triangle of a nose. Her once human ears melded into her head as two triangular balloons swelled up on top.
The balloon fell limply to her lips. John's mouth was open. Carrie flicked the balloon away and looked down at herself. She was pink and had purple stripes, and was doing a very good impression of a Cheshire Cat.
"Well, my fox, what do you think of this?" Carrie asked in her new high-pitched voice. She pressed her overly inflated breasts up and let them fall down and bounce in front of John.
John couldn't help but stare.