Warning: This story contains material catering towards the expansion fetish. If you're not into it, you don't have to read this story. Just a heads up.

So, my first submission here on FA is actually one that is starting to help me get over a bad bout of writer's block I've been contending with.

This is a short story inspired by the awesome commission sequence I got from http://www.furaffinity.net/user/necrofeline/ (seriously, her work is awesome. Go check it out if you're into weight gain, inflation or anything else along those lines.) It stars two of my MLP OCs: Wordy Notes (my unicorn ponysona) and Gavin (a griffon who is Wordy's best friend.) It's just a quick one-shot so don't expect a heavily detailed plot, but all the same I hope you enjoy it!

My Little Pony: Friendship is Magic is not owned by me...which may or may not be a good thing depending on who you ask.

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“Too lumpy…too watery…gah!” Gavin the griffon ducked to the side as he nearly flew face-first into a dark storm cloud, glancing back over his shoulder at it, “Definitely don’t want that one,” he sighed with a shake of his head as he continued flying above Ponyville. While it was a beautiful and sunny afternoon, he was currently attempting to find a cloud on behalf of his best friend Wordy Notes the unicorn. At the moment, though, he was having difficulty in trying to find one that was both comfortable and not filled with water or lightning.

“The heck does Wordy even need with a cloud?” He thought as he continued flying. Eventually, he managed to find one that appeared like it would be perfect, though he did notice it was currently occupied by another pegasus. As he got closer, he found that it was Cloud Chaser, who appeared to be hunkered down on the cloud like she wasn’t trying to be seen…which Gavin was oblivious to as he flew over to her.

“Chase! What’s up?” Gavin called out with a friendly tone, causing the pale purple mare to nearly jump off the cloud in fear as she suddenly flipped around to face the griffon with a fearful expression, scrunching up her nose in annoyance at Gavin.

“Gav, what the hay, man?! Don’t scare me like that!” She shouted.

“Oh…my bad, Chase,” Gavin’s floated away, holding his talons up apologetically, “Didn’t know you were so focused on something. What are ya’ doing, anyway?”

“It’s none of your busi-“, Cloud started before she sighed and face hoofed, motioning for him to sit on the cloud next to her, to which Gavin complied as he moved onto the cloud with her, though he was much more noticeable due to his larger size and jet black fur.

“So, what’s up?” Gavin looked over at her, whispering.

“I’m spying on Flitter’s date,” she replied, “I’m just making sure that he’s a good guy and treats her right.”

“Oh, I gotcha’,” Gavin nodded as he leaned over the edge of the cloud, “Doing’ the overprotective older sister thing?”

“It’s not overprotective,” Cloud peered at Gavin from the corner of her eye, “I’m watching out for her by not being seen. There’s a difference.”

“Then I’m guessin’ ya’ probably need this cloud pretty bad then, eh?” Gavin asked with a sheepish grin.

“Um…yeah. Why?” Cloud turned over at him with an eyebrow cocked.

“I was looking for a regular, comfy-lookin’ cloud. Wordy needs it for something,” he grinned and gave her the best sympathy grin he could muster.

Cloud scoffed as she scanned the sky around them before she turned his head over to another nearby cloud, “That one should be good. Now take it and let me continue my spying-“, she caught herself, “-overseeing of my sister.” She said through clenched teeth.

“Thanks a lot, Chase. Appreciate it,” Gavin smiled and hovered over to the cloud, “Good luck. Siblings gotta’ take care of each other, after all.” He gave a talons-up her way.

“Got that right.” Cloud called back as Gavin flew off with the cloud in tow.

**

Wordy Notes had his face immersed in a book at his reading desk, matching the unrolled scroll as his cutie mark representing his love for books and writing. His reading ended when his attention was grabbed by a knocking sound at his door. The light blue unicorn turned and stood up, trotting over to the door and opening it up, finding Gavin laying on his back on the cloud with his front talons behind his head and with a cocky look across his face.

“Special delivery?” He asked.

“Oh, hey, Gavin,” Wordy smiled at Gavin, “You managed to find one, I see.”

“Yeah, thank Chase next time ya’ see her. She pointed it out to me.” Gavin floated into Wordy’s apartment on the cloud.

“Oh, that explains why you took so long. You must’ve spent half the time hitting on her,” Wordy cracked a smile as he walked over the cloud.

“A: No, I didn’t, B: What’s wrong with that? She’s a cute pega,” he hopped off the cloud, “Besides, it’s not like it’s anything worse than when you and Shutter smack each other on the flank. PDA, Wordy. PDA,” Gavin walked over next to Wordy and playfully nudged him as he passed by him.

Wordy shrugged, “Okay, fine. You’ve got me there.”

“Totally won that one,” Gavin started looking over the cloud, “So, out o’ curiosity, what do ya’ need this here cloud for, bro?”

“It’s for a test,” Wordy walked by the cloud and then back over to his desk and the book, floating it up near his face while surrounded by the blue aura of the magic emanating from his horn.

“What kinda’ test?” Gavin looked at Wordy as the blue unicorn walked over and stood next to him.

“Well, do you remember that thing we talked about before I moved out here from Canterlot?” Wordy turned from reading his book to back at the amber-eyed griffon.

Gavin had a blank expression on his face before glancing away his best friend to focus up at the ceiling for a short time in deep thought before he snapped his talons and turned back at Wordy,” Oh! You mean us going to Cloudsdale and me showing you how freakin’ awesome it is? Yeah, I remember that. What about it?”

“Well, you see, I found a spell inside this book that essentially replicates the same passive magical power that lets griffons and pegasi walk on clouds,” Wordy floated the book up to Gavin’s face to which the griffon could only stare at, not understanding the mishmash and random words (in his own opinion) on the pages, “Which means we can go there and I won’t have to be on your back all the time,” Wordy moved the book and showed his beaming face to Gavin.

“No kidding?” Gavin dove forward and wrapped his arms around Wordy, picking him up and hugging him, “That’s so awesome, bro!” He laughed as she jumped into the air and floated around the room, still holding the smaller unicorn close to his chest.

“I know, right? I’m excited too,” Wordy stared up at Gavin with another bright smile as he floated down and released Wordy, leading him to walk over to the cloud, “Now, I haven’t tested the spell yet. I’m just going to try casting it and see if it works, which is why I needed the cloud.”

“Right on, right on,” Gavin descended and let Wordy go as the unicorn cracked open the spell book, “So, if this works, wanna’ head there this weekend?”

“Sure. Assuming it works,” Wordy set the book down behind him after taking a few more glances through it. He took a deep breath, closed his eyes, and then slowly exhaled as he re-opened them, now wearing a determined expression.

“Go get ‘em, bro,” Gavin patted Wordy on the back as he sat down, watching Wordy.

“Alright, here we go,” Wordy took another breath to help better mentally prepare himself as his horn lit up. Remembering what the book had said about the spell and how to perform it, he slowly started to perform it, the shimmering blue aura around his horn now turning into an opaque, swirling cloud of arcane energy that slowly started to ebb up. Wordy closed his eyes again as a slight grimace crossed his face, the strain of performing the magical act starting to get to him. Gavin kept his attention on Wordy with a look of happy anticipation as he watched his friend work. Wordy’s eyes snapped open suddenly, glowing with pure white light as the energy suddenly flew off his horn and washed over his body head-to-hoof. Further, unknown to Gavin, the same aura had also covered his body. As the remaining magic dissipated into the ether, Wordy panted to catch his breath and look to Gavin, now looking at the unicorn with concern, “Wow, that was a lot harder than I thought it’d be,” he stated, his eyes half-shut in exhaustion.

“Dude, that looked like it was harder it was,” Gavin blinked, “You alright, bro?” He tilted his head.

“Yes…just the initial shock of performing a spell for the first time and wondering if it-“Wordy wasn’t able to finish his sentence as Gavin pounced on him and hugged him, laughing in triumph.

“That was so cool, dude! You were putting on this really awesome looking light show with some cool spinning magic and then your body lit up, it was really awesome!” The griffon exclaimed.

“Yeah, you used ‘awesome’ twice to describe the same thing,” Wordy grunted from the griffon’s grip around his chest, still managing to perform his grammar corrections despite his condition.

“Too bad, ‘cause this time it was totally required,” Gavin messed with the stallion’s mane as he stepped back from Wordy, then had a thought, “So did it work?”

“Let’s find out,” Wordy cantered over to the cloud. He took a few steps back before lowering himself down and doing a jump toward the cloud. To his disappointment, Wordy’s hooves passed right through the cloud, the light moisture still clinging to his body as he took a few steps out of it.

“Aw, man, that sucks,” Gavin sighed as he walked over and sat down next to Wordy, “Sorry it didn’t work, bro.” He patted Wordy’s back.

“I don’t understand,” Wordy put a hoof to his chin and tapped it as he went over all the variables in his head, “I followed the spell as exactly as instructed within the book. Though I suppose there may also be a possibility that I may have…” Wordy’s thoughts were interrupted when he heard a loud gurgle come from his stomach, causing both of them to look at each other and then at Wordy’s stomach.

“Did you skip breakfast again?” Gavin asked, but before he could answer the same gurgle came from his own belly, “Uh…okay, I know that I didn’t skip breakfast,” he glanced down at himself and examined his midsection before his eyes shot wide open as his toned, flat stomach suddenly surged out into a round ball. Gavin gawked at it in shock before immediately whipping his head over to see his rear also inflate slightly.

“Gavin?” Wordy asked with concern before his gaze shot down to between his legs to see his own belly expanding and approaching the floor, “Wha…what the hay?!” Wordy yelped in surprise before also looking behind him to see his flank puff up.

“Bro, what’s going on?” Gavin poked his corpulent middle, his talons sinking into the soft flesh, “Is…is this fat?! Are we getting fat?!” He blinked rapidly as the growth spread up to his chest while his butt got even bigger alongside his back legs. Gavin brought his forelegs up in front of him and noticed they too were plumping up.

“Yeah, but I don’t know why!” The barrel of his chest also swelled out. He took a step back and watched all four of his legs as they were thickening and widening to the size of tree trunks while his stomach continued bloating like a slowly filling zeppelin, slowly drooping further and further down on its journey to the ground. As he analyzed his own and then Gavin’s ballooning body, Wordy suddenly had a thought, “Uh oh…I think I might know what’s causing this.” He squinted slightly as he felt his barrel swell further in addition to his neck, pushing against his bandanna. Wordy quickly used his magic to remove it just in time for his neck and face to absorb together into a double chin with a pair of puffy cheeks.

“Do tell!” Gavin cried out as the same thing happened with his own face, his once sleek eagle visage now a soft, pudgy one more akin to an overweight pigeon that had been fed one too many helpings of bird seed. His rear end resembled rising bread dough while his legs continued to grow thicker and thicker, the definition between the joints in them slowly being buried underneath a pile of flab. He took a closer look and was surprised to see even his paws were blowing up like tiny sausages. His burgeoning chest continued to fatten up and out, though all of it paled when compared with his rapidly blooming gut, spreading across the floor like a black wave.

Wordy darted over to his desk as fast as his tubby legs could allow him to waddle, reaching it and picking up the book and going back over next to Gavin just as the inflating medicine ball that was his tummy touched the ground, “Uh…no…that’s not it…wait…no, no, no…ah! Hm…” He flipped through the book, mumbling to himself and not noticing that his body had now picked up the pace in packing on the pounds, his engorged belly starting to push against the floor and lift his now stubby hooves off it while his barrel started to form rolls that shook ever so slightly each time he made any movement. Wordy’s cutie mark had also stretched further across his flank, looking like it belonged on a billboard rather than an obese stallion.

“Wordy!” Gavin whined, flailing at Wordy to try to get his attention as the same happened to him, his entire body jiggling like a bowl of gelatin, his massive chest affected heavily by the accelerated weight gain, eventually snapping his bead necklace as it caught up with his neck and sent broken string and small aquamarine orbs to the ground with clacking sounds as they rolled away. Similarly to Wordy, his rotund belly now also making it more difficult for him to continue on in the sitting position he had been in, forcing him onto his stomach as he continued to rise up, talons and claws getting further away from the floor.

“Just a sec’!” Wordy called back as his eyes continued to rapidly scan the book before he slammed it shut, “Okay, so I think I might’ve screwed up with casting the spell that’s called ‘Light as a Feather’ and instead did ‘Weight of an Ursa!’ The method of doing so is very similar, the only difference is that one makes you light enough to walk on clouds-“

“Yeah, yeah, yeah, and the other makes you as big as an Ursa, I get it!” Gavin nodded rapidly as his gain caused a second chin to form underneath his jowls, his beak slowly starting to be swallowed by his rounding cheeks, “How do we stop it?!”

“I…I don’t know!” Wordy glanced over, the same happening to his own head as his belly lifted him up more and more, the tips of his hooves and his horn now the only parts of his body that were small. Gavin’s mouth opened wide in shock as he sputtered and squawked, trying to get his thoughts together as both friends continued blowing up. Finally, he did manage enough to get a single sentence out.

“We’re not gonna’ explode, are we?!” He yelled out, panic in his voice as his tail flicked around, occasionally smacking against his big butt and making it jiggle.

“No, no! Thank Celestia that won’t happen!” Wordy said assuredly toward Gavin with a comforting expression before taking a look down at his own body, “though we’re going to have some trouble walking after this.”

Gavin started to say something before he sighed and dropped his talons to the side, defeated “Wait it out?”

“Wait it out.” Wordy answered with a nod.

Thus, both of them sat in silence as they continued to put on more weight. Eventually, it tapered off and both friends were satisfied the magic pounds had stopped throwing themselves onto their previously fit bodies…though the unicorn and griffon were less concerned about the weight they could gain and the weight they currently had. Wordy guessed they clocked in at least a ton each, give or take a few pounds, and it showed. Each of them sported a third chin, though at this point calling it and its upstairs neighbor a “chin” was more a technicality as each were a ring constructed of adipose that served to prop up their equally as fatty faces. Wordy’s glasses were actually being shoved up by his full cheeks, though he was doing his best to adjust them in order to see properly, while the feathery ruff around Gavin’s neck spread out in a circle. The biggest difference (though not by much) in size and shape between the two came in their chests. Wordy’s barrel stuck out in a sphere shape while Gavin’s chest formed a slight shelf just over the top of his stomach, owing back to the muscles that were now covered by thick blubber. Further down, their enormous bellies were like oversized beanbag chairs that matched the color of their fur, the weight of their upper bodies making them squish slightly against the floor of Wordy’s living room and causing slight ripples in their figures each time either made the slightest of moves. Pressed up against their stomachs, their legs sunk in and rubbed fat against fat while each limb had plumped up into massive balls with no way to distinguish where the bending joints actually were (assuming they could bend at all given the amount of pudge present) with the ends of Wordy’s hooves and Gavin’s talons the only parts untouched by their bulking. Finally, their elephantine flanks made their tails look tiny by comparison, each hefty rear cheek the size of a wall on the side of a building, making Wordy thankful he had sprung for the extra money to have a house with an open area above the second floor. Eventually, it was the pony that broke the building awkward silence between the two.

“I think it stopped.” The butterball of a unicorn simply said as he looked down at himself and then at the equally gigantic griffon.

“Oh? It did? That’s good. I stopped counting after the first hundred pounds,” Gavin sarcastically replied, shooting daggers at Wordy. Wordy met his swollen friend’s glare before immediately turning his gaze down, his ears drooping in embarrassment as he started smiling nervously.

“Um…look, Gavin,” he said, sweat dripping down his brow and onto his padded cheeks, “I’m really sorry I cast the wrong spell. I didn’t mean-“

“You didn’t mean to what?!” Gavin roared, cutting Wordy off, “Cast the wrong spell and turn me into a whale?! Look at me, Wordy!” Gavin extended his black wings and gave them a flap, making his enlarged body wobble, “I can’t fly like this! I can’t even walk!” He flailed his back legs, continuing the cycle of fat shaking around uncontrollably before he stopped upon realizing what was happening. Gavin then grumbled and face palmed, “What were you thinking? You should’ve checked the spell you were casting before you did it if there was a chance of something like this happening!” He took his claw away from his face to continue scowling at Wordy while keeping his claws balled up into fists.

“…you’re right,” Wordy’s eyes stayed drooped as he hung his head down at the floor, “I’m sorry, Gav, I guess I just got too excited about, y’know, going to Cloudsdale with you. You’re right. I really should’ve made sure of the spell before I tried it out,” he closed his eyes, a sad expression crossing his face, “I really screwed up. I’m sorry.” He said, softly.

Gavin stared at Wordy before his anger slowly faded and he dropped his head down and sighed, “Wordy, bro, you know what? It’s okay,” he lurched back and forth, trying to rock his roly-poly body over to Wordy before getting close enough that black lion fur touched up against blue pony fur. Wordy, ears still pinned back, glanced up at Gavin, “No need to get upset. Ya’ didn’t do this on purpose, it seemed like it was an accident, and nopony got hurt, so we’re okay.”

Wordy looked at Gavin with a curious expression, “Gav, are you sure?” He asked, sounding worried.

“’course I’m sure,” Gavin smirked and wrapped his talons around (as much as he could given the circumstances, anyway) and hugged Wordy, “I’m not gonna’ stay mad at my best bud over something like this, ‘specially when he was just trying to do something nice for the two of us in the first place,” he smiled as Wordy did the same, the portly pony doing his best to return the hug.

“Thanks, Gavin.” Wordy said, putting his head on Gavin’s soft shoulders, “Oh, I just realized something. Your necklace…”

“Psh, no worries. I can fix it,” Gavin waved it off, “And like I said, don’t worry about this,” he poked his stomach, his soft body having much more give to it than before, “It’s no problem at all,” Gavin inched back slightly to look at Wordy while snickering, “Besides, you got it just bad as me!” He broke into a laugh as he pointed a talon, “We’re gonna’ have to start callin’ you ‘Wide Wordy’ now!”

Wordy smirked and laughed as well, “Well, I’ll accept the name so long as you accept ‘Gargantuan Gavin.’”

Gavin smiled and put a claw up next to his cheek, “Is that your way of saying that I’m bigger than you?”

“Well, that’s obvious. Even when we’re both the size of blimps, you’re still the bigger of the two of us.” Wordy rested a hoof on his ample side.

Gavin laughed, “Large and in charge, bro!” He beat his chest.

“That’s definitely true,” Wordy nodded as he noticed the book below them, “At least until I cast that spell again.” He said slyly as he picked up the book and floated it near him.

Gavin’s grin faded as he stared in shock at Wordy, “You wouldn’t.”

“If I got to this size from just one mess up, imagine how colossal I’d be from the full force of the spell,” Wordy smiled evilly as he slowly opened the page to the Ursa spell, “Bloating and swelling, fattening and expanding, couple that together with how huge I am now, why I’d be a force to be reckoned with, the size of two Ursas, maybe even five, maybe even fifty!” He raised up the book behind him and cackled loudly, making Gavin shirk back slightly and wonder if becoming a blob had made Wordy lose his mind. Before anything else could be said, Wordy closed the book and looked back at Gavin, “But I’d need to be able to fit through the door to do that, so I guess one-upping comes later,” he smiled at Gavin, immediately snorting as he tried to hold back a laughing fit and failed.

Gavin’s happy expression returned as he too started to crack up, “I love ya’, bro,” he held out a fist to Wordy, to which Wordy rose a hoof and wiggled himself to eventually hoofbump Gavin.

“Love you too, Gav.” Wordy replied as he cracked open the book and began looking through it, “Now to find a spell that can get us both slim down.

**

After about two hours and a few failed attempts, Wordy had finally managed to locate a spell within the book that could reduce the two back to their original weights. Unfortunately, because of the previous failed attempts (including the one that had gotten them in the situation in the first place) Wordy had exhausted much of his magic and would need time to rest. He had been left with a plush build and a much fuller face while Gavin had managed to get off with a small pot belly.

“Whew, back in action,” Gavin spread his wings and hovered in mid-air, “Woo yeah!” He pumped a fist in the air before landing next to Wordy and feeling his own chest, “Hello, pecs. I missed ya’.”

“Everything feel okay?” Wordy turned to face Gavin as he took a drink of water and sat on a chair, taking breaths in.

“Yeah, I feel fine.” He grinned happily.

“That’s good to hear, I’m glad you’re doing good. I think I’m good to go now too…aside from this little thing, anyway.” Wordy nodded, looking down and prodding at his plump gut.

“Hey, no worries, bro. You’ll get recharged soon and then you can just melt the rest o’ that right off,” Gavin gave a talons-up to Wordy. As he held the pose, however, his stomach made a snarling sound that made both of them jump in fear for a moment before Gavin sheepishly rubbed the back of his head, “Uh…heh heh, don’t worry. That was a hunger growl,” it was followed up by another one even louder than the first, “Yeesh, I guess getting hit with a weight gain spell must make you hungry afterwards.”

“Looks that way,” Wordy nodded as his own belly rumbled in response, “I’m starving.”

“Seems kinda’ ironic if ya’ ask me,” Gavin shrugged, “so, what do ya’ wanna’ do for dinner?”

“Well, Shutterbug is off of work in about twenty minutes. I was thinking about just meeting her and then getting something on the way home.” Wordy stood up and started gathering up his saddle bags.

“You don’t mind a hungry hungry third-wheel griffon coming along, do ya’?” Gavin smiled.

“No, go ahead,” Wordy set his saddle bags on the back, “In fact, it might make explaining what happened easier if I have a witness.” Wordy chuckled.

“Rock on!” Gavin started following Wordy out of the apartment, though as they left and started walking down the town road, Gavin spoke up, “Hey, bro, ya’ mind if I ask you something?”

“What’s up?” Wordy inquired.

“Uh…were you kidding about that whole thing with the book earlier? About making yourself even bigger with that Ursa spell, I mean? I mean, I figured it mighta’ just been a comeback to me making fun o’ you and talking about how I was bigger than ya’, but I was just curious all the same.” Upon Gavin’s question, Wordy stayed silent for a moment before he turned to Gavin, a toothy grin crossing his chubby face.

“Let’s just say that I’m curious about something as well.” Wordy answered simply as he turned his gaze back toward walking down the town road.

Gavin cocked an eyebrow, “And what would that be?”

“Triple checking to see how big fifty Ursas actually are altogether.”