Judy Hopps belched and belched and belched. She didn't need to breathe, she could produce gas and burp and belch forever. She ran her bunny paws over her greasy gut as she spilled her ever-refilling load of intoxicating gas from her lapine lips. The purple fumes poured past her lips and into the vixen's face, melting her mind and corrupting her body. Vivian Wilde was a mess. She was dressed in a slinky cocktail dress with her red fur done up perfectly. But the fox had long since given up trying to look presentable, and she was sitting on the ground, legs akimbo, leaning against Judy's naked thigh. A trail of drool ran from the corner of her mouth as she looked up at the bloated, belching form of Judy Hopps. Her nose was clogged with the scent of bunny belchgas, her eyes unfocused and bulging. Her pussy was sopping wet, and her claws dug into the carpet. She had come many times, her cum pooling underneath her and her juices running down her thighs. Judy let the intoxicating toxic gas roar out of her muzzle for a few moments more before she let the flow die down, and take stock of what she'd done to Vivian. The red fox was a drooling mess, a puddle of her own arousal soaking her crotch, and a trail of saliva and tears staining her pretty face. Judy grinned. She'd been wanting a chance to break in this fox and show her what real power was. "Now, why don't we have a little fun, just you and me," said Judy, and pulled the fox into her lap. Judy grabbed the zipper on the side of her cocktail dress and pulled it down, revealing the creamy white fur underneath, and the greasy fox sheath Vivian had just been forced to grow from Judy's burp gas. It was already engorged and dripping, and Judy grabbed the base and rubbed it gently, coaxing more precum from the tip. Vivian let out a whining sound that might have been a word as she was forced to masturbate, but her new, purple-stained eyes could only focus on the bunny's naked form. The plump and sweaty bunny was the curviest and most well endowed thing she'd ever seen. And the fumes pouring from her lips and filling the room made the fox want her more than she had wanted anything else. "Get up, and show yourself off to the other guests." Judy ordered, seeing Vivian still growing from her gas corruption. The fox obeyed, her eyes wide with excitement. She stood, her tail swaying back and forth as she unzipped her dress and let it drop around her feet. She was wearing lacy pink underwear, a matching bra and thong set, and her new cock and balls were straining against them. Her red-furred nipples were poking through her bra, and the sight was enough to make the wolf howl. Judy looked up and down the length of the red fox's body, taking in every curve. Vivian's height shuddered up ever so slightly taller, her bust increasing slightly as she was altered, making the vixen gasp. "They're just through that door." Judy pushed Vivian, gas leaking from Vivian's nose, ears and ass. --- Vivian strut, nude and overexcited, into the lounge. Her body grew in tiny fits of growth spurts and twitches. Every step the fox took brought a new burst of size, a fresh wave of lust, and a new spurt of precum from her fox-cock and heavier testicles. Her tits and ass jiggled and her cunt and balls ached. The lounge was full of mammals, all of them staring at the red fox as she entered. Their jaws dropped as they took in her body, and their eyes filled with hunger. Vivian walked in, her head held high, her fox-cock bobbing as she moved. She had the feeling like a thousand hungry eyes were on her, and it sent shivers of pleasure down her spine. She had never felt so desired, so alive, and the smell of their desire made her shudder taller again. Vivian approached the crowd and began to walk around, her hips swaying seductively, her fox-cock and heavy ball swinging freely, precum dripping down her shaft. There were a few small gasps and mutterings, but nobody said anything. As she neared the first person, she could see their gaze fixed on her chest. Vivian grinned. She stopped and leaned over the table, her breasts hanging down, her nipples inches from their muzzle. "Hey," Vivian cooed. "Like what you see?" The rabbit nodded. Vivian smiled. "Well, have a feel." She reached out and squeezed one of the fox's breasts. Vivian moaned and her breasts swelled slightly larger, as Vivian also got even taller. "Nice." Vivian giggled. "I thought you'd like them." Then Vivian moved away, letting the bunny watch her ass swing as she headed for the next table. Judy's purple scent had been absorbed into the vixen's brain. Each breath was another dose, and each time her heart beat, a surge of the corruptive gas flowed into her blood. She was a slave to the gas, addicted, and her body and mind were changing faster and faster. A second head grew next to her first with almost casual ease. The two-headed Vivian moved towards a ferret herm. "Hey there, cutie." Vivian spoke, her twin mouths moving in sync. The ferret was taken aback by the two-headed fox. "H-hey." "You wanna feel these?" Vivian cupped her breasts and bounced them up and down, watching the ferret's reaction. The ferret couldn't resist, and grabbed the red-furred breasts. His hands sunk into the soft, pliable flesh and he felt his cock begin to swell. "You like my boobs, don't you? You can tell me. I won't bite...hard." Vivian's twin-mouths were both smiling, their lips wet. "Yeah. Yeah, I love your boobs." "I can tell." Vivian was rubbing her crotch and the bulge was very apparent. "Oh, that too. Well, maybe you should do something about that." Vivian turned and bent over the ferret's chair, her ass pointed right at his face. She had two buttholes, each with a large fat prostate inside. The ferret didn't need any more invitation, and quickly slipped his paws up the vixen's cheeks. They were thick and supple, and his fingers sank into the red-furred flesh. "Ooh, yeah." "That's right, get in there. Give it a good squeeze." The ferret obliged and grabbed Vivian's ass, squeezing the cheeks and pushing them apart. His tongue snaked out and he started to lick. Vivian groaned, and her buttocks and legs grew, swelling to accommodate the sudden expansion. Her balls and dick grew along with her, and soon her pussy was leaking as much precum as her male counterpart. "Oooh, yeah, that's the spot. That's the spot." The ferret continued to eat Vivian out, licking her assholes and pussy, her scent filling his nostrils. She grew more and more, and her asshole stretched, letting the ferret's tongue slide deep into her. He grabbed her legs and pulled her closer, and she squealed. Vivian was now as big as a pony, and her vulpine form was massive. Vivian fell forward, but her fall stopped as a huge pair of tauric forelegs grew forth and she landed on her front paws. Her rear legs became hind legs, her tail sprouting a large bushy tip. Vivian was a four-legged red-furred centauress, her upper torso was a fox, and her lower a massive feral fox. Vivian was gasping and moaning, and she looked down and saw the ferret, still eating her pussy and asshole. "Ahh, you're good." She looked up and around, seeing everyone looking at her. She grinned. "What's the matter? Never seen a fox like me before?" Everyone was staring, and she loved it. "Don't worry. There's plenty of me to go around." Vivian was panting. The sensation of the ferret's mouth on her pussy and her new body was overwhelming. She needed more. More stimulation. More gas. As if on cue, the bunny she had teased before began to belch purple gas uncontrollably. Vivian breathed it all in, her nose, ears, and lungs absorbing the purple air, her mind filling with the intoxicating scent. Her whole body grew, her already massive form expanding and growing. Her tits and ass ballooned, her legs and arms grew more powerful and muscular, and her cocks and balls swelled to enormous proportions. Her fox-cock was bigger than her old fox-body had been, and her pussy was twice as big. Vivian was panting. "Please. Someone, please, fuck me." The rabbit didn't have to say a word, and neither did anyone else. The crowd converged on her, their eyes filled with lust, their voices low and growling. One by one, they began to take their turns. Vivian had never been fucked so many ways at once.