"Ugh, my aching stomach… Where the hell are we?" Looking up with only a vague memory of yesterday the five gigantic Avengers sat up to find themselves radically changed, and fat! Whatever had happened they had eaten until they were filled to the brim, and just kept eating until they passed out where they were now. Easily several tonnes now their bodies were layered with bulk and fat that gave them thick limbs and a round gut, almost like that of a grizzly bear. Feeling themselves over the Avengers found that they were now taller, more than 30 feet tall and almost just as long from head to tail tip.

Miss Marvel was a furry shade of dark blue sporting leathery wings like a bat and horns like a cow, her back lined with spines that reached all the way to her tail. Black Widow looked almost like her name sake, with six clawed arms and a red hourglass on her round belly. The rest of her body had black fur but her head still had red hair growing down to her back. She-Hulk, Captain America and Iron Man looked like a cross between a grizzly bear, cow and a stegosaurus! Along with being full bodied and thick they sported spikes on their backs that ran down to their tails, ending in stubby clubs, a pair of horns arched from their heads but where Jen and Carol’s pointed backwards Steve and Tony’s pointed forwards like bull horns.

"The hell happened here?!"

Looking around the five Avengers discovered the forest outcrop they woke up in was practically stripped of everything green, even the grass was pulled up. The trees were barren with their bark pried off, pockets in the earth showed where bushes and shrubs once grew before being uprooted, all of it leading back down a direction through the tree line for at least a mile. "Did we do this? BURP!" Clasping her clawed hands over her fanged lips She-Hulk was shocked to see a pinecone fly out of her mouth.

"We… We must have gone on an eating frenzy or something." Looking down at her full to the brim stomach Natasha rubbed its surface with her six hands, the sensation strange with so many limbs. "Let’s hope nothing happened to the mansion when we blacked out."

***

Crouched on his knees with a bag of grass seed Hank McCoy sighed sifting a scoop of the seedlings over the scoured grounds. Overalls keeping him clean with a gardener’s hat over his blue furry head.

Standing over the steps and overlooking the ruined back lot of the grounds Emma Frost glowered at the path of destruction leading away from the Institute. Every tree, bush and blade of grass was torn out and devoured by the Avengers after the accident with the mutation inhibitors, leading them to ‘graze’ their way out of the campus and to parts unknown. "This is YOUR mistake Hank so YOU get to clean this up." Slamming the double doors behind her Emma returned to her duties in the mansion.

"I really thought it would work… Oh well, guess its garden duty for me for a while."

***

"DO YOU SEE WHERE WE ARE CAROL?" Called out Tony from under the tree line with the others, with Miss Marvel high in the air on her new wings looking around for anything familiar. "LOOKS LIKE WE’RE A LONG WAY FROM THE CITY." Landing heavily Carol folded her wings behind her and gave her friends a sour look. "Guess it’ll be a couple days before we reach the city limits."

Huffing in annoyance She-Hulk took a pensive look at the blue furred woman’s wings. "Any chance you could fly us there?" Glaring back at Jen Carol began marching down through the woods towards what she guessed was New York. "Guess that’s a no."

Following after their teammate the five behemoths began the slow ponderous trek to return to civilization, their bulk was so great that they found themselves pushing trees out of their way like elephants just to gain some foot room, even more embarrassing was half the time they walked on all fours like bears before forcing themselves back up on their hind legs. About a couple hours into their walk Carol stopped dead in her place and turned sharply to glare at Steve, wringing her claws at her side while her wings fluttered in agitation behind her. "This is all YOUR fault!" Pointing an accusing claw at the blonde furred behemoth Miss Marvel moved up to press against Steve, pinning him against a tree as her large belly and breasts pressed into his gut and chest. "You just HAD to open your big fat mouth and jinx us all when it looked like we might get back to normal, I mean look at me my figure is ruined!"

Looking down Steve couldn’t help himself and ogled the furry valley of Carol’s cleavage, both breasts were larger than bean bags and when Miss Marvel leaned in closer to yell they mashed up until they almost touched his chin. Grinding her belly against his Carol vented more of her frustrations. "Because of you I’m a huge fuzzy freak with wings, even with this damn tail my ass is huge, and WHAT DO YOU HAVE TO SAY FOR YOURSELF?!"

"MY FAULT? Half the time we black out and wake up bigger and worse than before, how is that my fault?!"

"At least I didn’t almost gobble up a truck driver!"

"Well I wasn’t the one that trashed the truck!"

Glaring into Steve’s eyes Miss Marvel’s anger instantly dissolved into shock when she felt something long and hard thump against the underside of her belly. Without even looking down to notice it Carol could feel Cap’s throbbing erection pulse at the entrance of her womanhood, her legs instinctively spreading to give it more room. Looking back into Steve’s eyes with a flushed look the two came to a sudden realization; they were male and female, they were both naked and they were in heat!

Looking blankly to each other for only a minute fanged lips collided together in a passionate kiss while their clawed hands groped at each other’s bulk and fur, Miss Marvel ground her belly against Steve’s to angle herself better just as Cap pulled up her leg over his waist, penetrating her then and there. Moaning out loud the two had fallen into a haze of instinct, reduced to a pair of rutting animals mating on the spot. Arching her back Carol swooned when Steve began licking her erect nipples and cleavage.

The others watched on as the two behemoths went at it, oblivious to their presence while Steve grunted and Carol keened and moaned. "Wow, what was that about it being all his fault again?" Wondered Tony just as he felt two pairs of claws grasp at his own rising erection, pressing up behind him Natasha licked at his pointed ears and face while Jen came around and began nuzzling his chest, moving down to her knees to grip her prize more firmly. "It’s your fault too Tony, you and that stupid rock…" As soon as he felt She-Hulk lick the length of his 3 foot long shaft Iron Man’s mind went blank.

All over the woods the birds flew off to the sounds of bellowing roars and howling calls from the five giant monsters rutting together.