Getting Into Shape

by Megapone

Rating: mature
Tags: Anthro, Slice of Life
Length: 9806

To cope with feelings of jealousy, Rainbow eats—a lot. As Rainbow packs on the pounds, a very interested Rarity encourages her to "get into shape." After all, round is a shape.

Ever since Rarity started working out, Rainbow Dash has found herself growing jealous of her friend's ease in putting on muscle mass. To cope with her growing feelings of inadequacy, she eats—a lot.

As Rainbow balloons in weight, a very interested Rarity steps in. Cakes, pies, sweets—anything to help Rainbow's expanding waistline. Sure, Dash might be bulking up in all the wrong ways, but a plumper Rainbow Dash might turn out to be a growing attraction for the both of them. Rainbow did want to get into shape, after all.

And round is, in fact, a shape.

A commission for Anonymous. Coverart by the magnificent sirmasterdufel.

Published 1970-01-01 00:00:00 UTC
Last updated 2015-11-01 02:20:01 UTC

Getting Into Shape

Rarity found Rainbow Dash in the kitchen.

It wasn’t that rare of an occurrence, these days at least. A lifetime ago, it would’ve been crazy to even consider the idea that the athletic, carefree Rainbow Dash would care to spend any amount of time with the classy, uptight Rarity. And even crazier to think of Dash in her current position: hunched over the table, a plateful of doughnuts in front of her, scarfing them down as fast as she could.

Rarity smiled to herself as she swept lazily into the kitchen. Once, her body had been lithe, clean-cut, elegant. A recent visit to the gym with Rainbow, though, had given her a new insight: her body, it seemed, reacted remarkably well to a proper workout, adding on pounds of muscle and height with the slightest exertion. Now, each one of her footfalls made the floor tremble, her thick arms flexing as she walked, her generous chest bouncing with every step.

She was big, now—huge, even. Starting at a positively tiny five-foot-five, the once petit Rarity had since sprouted up to an Amazonian seven-foot-three. She actually had to duck to get through doorways, now—had to sidle in sideways so that her enormous boobs wouldn’t crack the door frame.

Her sudden transformation had gained her quite a bit of attention all around Ponyville—a good bit of it in particular from Rainbow Dash herself. Outmatched in every physical way by a “prissy little dressmaker,” Rainbow had soon started hanging around Rarity, finding every excuse to be with the big, buff mare. Rarity sometimes wondered just how much Rainbow “liked” her body—and just how she felt being compared to it.

Then again, it didn’t take a genius to guess. When Rainbow felt stressed, lost, or inadequate, she turned to a comfort that Rarity had discovered very quickly: food. When Rainbow felt sad, she ate. When she felt tired, she ate. And when she felt small, she ate.

She seemed to be feeling small an awful lot these days.

Rarity let a smile flicker onto her face as she stepped past the counter. Her fingers traced across the marble surface, her thick forearms bulging beefily when she gave them the slightest flex. She delighted in how fragile the stone counter felt beneath her muscles—how easily she could crack it with her new size and strength.

But then a loud, low burp shattered the silence, and Rarity turned back to the table.

If there was one thing it seemed Rainbow could do better than Rarity, it was putting food away—specifically, into her gut, which was able to accommodate more and more each day.

She wasn’t fat—not yet, at least. Though at the rate she was going, it’d be a surprise if she didn’t get there soon.

Rainbow Dash’s figure was a far cry from the lithe, athletic figure she’d possessed just months prior. There were any number of words for what she was now—chubby, stocky, heavyset, filled-out, plump—but all of them came down to one thing. Rainbow Dash was no skinny little filly anymore.

A pile of discarded boxes, once containing a dozen donuts each, lay to the side of her chair. Rainbow didn’t seem to notice them. Instead, all her attention was focused on the platter in front of her. Six donuts were left, but in the time it took Rarity to blink, Rainbow scarfed another one down, chewing happily around the fat and sugar before swallowing it.

There was no subtlety, to rhyme or reason to Rainbow’s bingeing. She simply ate, a gluttonous zeal filling her every action as she stuffed herself like a pig. Rarity felt a stirring in her loins as she watched Rainbow stuff her fat cheeks with two donuts at once, gulping them down as though they were merely small candies. The beginnings of a double chin were forming beneath her mouth, and it smacked against her neck every time her jaw worked to swallow its feast. Rainbow’s butt, a wide, plump affair just barely clad by a pair of too-tight jeans, flexed and clenched, straining against its bounds as its owner munched and gobbled and devoured hundreds of calories in seconds.

The instant the plate emptied, Rainbow leaned back in her chair. Her big belly, taut and full of donuts, slapped against the sides of her thighs. It groaned, sloshing as it digested its huge meal. Rarity didn’t even know how much Dash had been eating, though from the pile of boxes beside her, she would be willing to bet that it had been dozens. The thought excited her, and she found herself stepping around the counter so that her strong, bulky form filled Rainbow’s vision.

“Goodness, dear,” Rarity said, gazing down at Rainbow’s plump figure. Her gaze hovered on Rainbow’s lap for a moment, where her bulging, bloated belly had poked out past her clothes to sit atop her chunky thighs. “You have quite an appetite.”

Rainbow just looked lazily up at Rarity and slapped her swollen gut. It jiggled, rolling out to cover her lap. Rarity loved the way it strained against her shirt. “Gotta...eat,” Rainbow mumbled. “Gotta feed this athlete’s body.”

“Oh, of course,” Rarity said. She flexed one of her massive biceps, which was only smaller than Rainbow’s torso due to the fact that the smaller mare had filled out so much. “I know the feeling. Fueling this much mare really does take its toll, doesn’t it?”

Rainbow tried to flex her bicep, too. Instead, all she got was a rather flabby arm that jiggled as she raised it. Flushing slightly, she let it fall back down to her side.

“But it looks like you’re out of food!” Rarity looked down at Rainbow Dash with apparent concern. She wasn’t quite sure why she felt so willing to act as an enabler, but the heat flickering in her loins at the sight of Rainbow Dash stuffing herself simply refused to go away. Rarity gasped in mock surprise. “Goodness—you’ll starve at that rate!”

Dash’s eyes flew wide open. She glanced down at her round, overstuffed gut. “Starve?” she yelped.

“Oh, no,” Rarity said. “This won’t do.” She began to pace, the kitchen floor trembling beneath her half-ton of muscle. “I know—I’ll go to the store right now and pick more food up for you. Won’t that be nice? You can eat to your heart’s content.”

Rainbow looked doubtful for a moment. She glanced at the pile of donut boxes beside her and swallowed. “Actually, uh—I dunno, Rares. I think I’ve eaten a lot today already.”

“Nonsense!” Rarity said. “You’re a growing mare. You need your nutrition.” Growing sideways, at least.

That seemed to convince her. “Well, okay,” Rainbow said. “Just...could you get me some more ice cream? We’re all out.”

“Two tubs,” Rarity promised her. “If not three.”

Rainbow’s eyes lit up. “Oh! And—and those special chocolate cakes, too? I heard the Cakes are having a sale.”

“They won’t when we’re done with them,” Rarity said elegantly. “Now, you just stay here, and I’ll return with a proper snack. Okay?”

Rainbow Dash nodded so quickly that it was a wonder her growing second chin didn’t slap against her neck harder. Rarity just smiled, nodded back, and turned to go.

She had a hungry pegasus to feed.

Watching Rainbow Dash eat was an experience.

Few single chairs would hold Rarity’s weight anymore, so she had to push two together in order to hold her muscular ass. Even so, her Cutie Marks still poked out over the edges of the seats, barely covered by a pair of too-small running shorts. From the looks of it, Rainbow Dash would soon be experiencing much the same.

Rarity had fulfilled her promise and more. She hadn’t just picked up ice cream and cake. She’d picked up ice cream and cake, and then gone shopping for more: chocolate syrup, chocolate chips, whole cans of whipped cream and frosting. She’d been prepared to let Rainbow Dash give herself a feast. She just hadn’t expected how eager Rainbow would be to dive in.

Rainbow groaned, rubbing her stomach. “Oh, man,” she wheezed. She patted her gut, the taut skin vibrating like a drum. She’d gone through a full chocolate cake and an absolutely stacked sundae, and even so, Rarity hadn’t seen her slow down until she’d gulped down a half a can of whipped cream to top it off. “That’s a lot of food.”

“Perhaps,” Rarity said. She leaned a bit forward. The table trembled under the weight of her massive breasts, which were both larger than Rainbow’s gurgling gut—but only just. She felt a spark of excitement leap in her chest as she contemplated just how her smaller friend might outgrow her. “But aren’t you still hungry?”

Right on cue, Rainbow’s stomach rumbled. Blushing slightly, Rainbow glanced up over the feast still awaiting her. “Well,” she said, “I am a little peckish.”

“Excellent!” Rarity beamed at her. “Then eat up, dear—a true Wonderbolt must eat her fill, yes? Fuel for the body. Chop-chop!”

Rainbow chuckled, a bit awkwardly, but dug in with gusto. She scarfed a half a cake down in just a few bites, the entire thing vanishing down her throat in the space of a minute. As her meal went on, her sense of propriety seemed to evaporate; before long, she’d gone from using forks, knives, and spoons to just breaking off huge chunks of cake with her hand, scooping a massive sphere of ice cream from the tub using the scoop itself, and then mashing both together in her mouth, chewing wildly. The look in her eyes was nothing less than a look of ecstasy; as Dash filled her belly, her stomach pushing out further past her shirt until it was actually overflowing her lap, Rarity felt herself getting more and more turned on by the second.

Rarity grunted slightly, rubbing her thighs together. Her puffy marehood pushed right up against her muscled legs, the slightest motion stimulating her and pushing her arousal even higher. Watching Rainbow eat was...incredible. The way Rainbow was gorging herself just turned her on, more than any stallion’s cock ever could. When Rainbow had unbuttoned her pants to make more room for her growing gut, Rarity had just started fingering herself under the table; as Rainbow went on to demolish an entire chocolate cake, dribbling sauce and syrup all over her belly as she shoveled slices into her waiting maw, Rarity had thrown caution to the wind and just started rubbing herself as fast and hard as she dared.

She couldn’t help but feel the slightest twinge of guilt, though, as she saw the once-fit Wonderbolt putting away enough food to feed a family of six—if not a small party. Rainbow had once been strong, lithe, healthy, and now all she was doing was gorging herself, growing wider and thicker with each thousand calories she downed.

But it might have been all for the best, Rarity decided. Dash had simply no chance of ever reaching her own size, and given the pegasus’ competitive streak, perhaps it was ideal that an impenetrable block be placed between her and Rarity’s sheer bulk. Even if that block was Rainbow’s own bulging, gurgling stomach.

And besides, Rarity noted in the back of her mind, a bigger, rounder Dash was turning out to be incredibly hot.

Rarity came just moments before Dash finished off her feast, her tree-trunk legs flexing wildly beneath the table as she went over the edge. Her massive chest heaving, and the twin chairs groaning beneath her weight, Rarity pulled herself back up into a sitting position and rested her dripping hand right on her bosom.

When Rainbow finished off the last of her dessert, she smacked her lips loudly, leaned back in her chair, and burped. Then she burped again, smacking her gut so hard Rarity could actually see it wobble. Her belly was huge, jiggling and gurgling madly as it struggled to digest its massive meal.

“I gotta say, Rares,” Rainbow said, somewhat woozily. She paused, going cross-eyed, then belched again. “You really know how to pick ‘em.”

Rarity smiled down at her. “I do try.”

“Mmff.” Rainbow closed her eyes, massaging her massive gut softly. “S’just...a break, right? From training ‘n stuff. Gonna...eat healthier...tomorrow.”

Rarity eyed Rainbow’s bloated belly. If the pegasus kept eating as she had been...well. Eating healthier ever again might as well be an impossibility. The thought excited her all the more.

“Of course, dear,” Rarity said. “Though perhaps you might like to sleep your small meal off, first?”

Rainbow’s eyelids were already fluttering. “Mm...yeah,” she mumbled. She tried to get up, stumbled, and then flopped back into her chair. Her belly bounced enormously, the folds overflowing her lap jiggling and wobbling with the force of the impact.

Rarity hurriedly wiped her hand on her shorts and stood up. She didn’t have to duck to fit inside the house yet, but she was getting close. “Here, darling. Let me help. A full mare shouldn’t have to make her own way to bed.”

Picking up Rainbow Dash wasn’t difficult for a mare of Rarity’s size. However, as Rarity moved her into the living room, she wondered just how big Dash would have to get for carrying her to be a struggle. The thought excited her all over again.

“Mmff.” Dash grunted as Rarity eased her onto the sofa, her massive belly pinning her down. “Hey, Rares?”

“Yes?”

Dash burped, then squeezed her gut. She smiled sleepily up at Rarity. “Thanks for dinner.”

Rarity smiled back. “Anytime, dear.”

Another week passed. Dash had taken a leave of absence from the Wonderbolts—ostensibly as a vacation, but more because she was starting to have difficulty getting off the ground at all. Rarity had peered in while Dash had been trying on her Wonderbolt uniform, watched as Dash tried to suck in her round, flabby gut to pull her suit up over her ample hips. The fabric had caught on her thighs, and when she’d finally managed to get the whole thing on, her belly had hung over in a pouch, the material straining to hold it in.

There was no getting around it: Dash was just getting too big for the clothes she used to wear. Her shorts had begun to look ridiculous, nearly splitting at the seams around Rainbow’s chunky thunder thighs. Her belly, which had passed a muffin top and was now beginning to overhang nicely, poked out beneath her shirts by a good few inches. Her breasts were too big and too wide to fit in any of the bras she’d used before. That wasn’t to say she didn’t try to fit into them, though. Rarity just loved seeing Dash try to squeeze herself into a set of clothes that were rapidly becoming far too small for her growing body.

Rainbow wasn’t the only one growing, though. Rarity kept going to the gym, day after day. She was already far taller and stronger than any of the other gym-goers. Big Macintosh, for example, at six and a half feet and (she guessed) over three hundred pounds of muscle, was an absolutely massive specimen of a stallion.

But Rarity was a good eighteen inches taller, and nearly twice his weight to boot. She lifted barbells in one hand that it took Macintosh both arms and legs to even get off the ground. Her every muscle bulged, rippling with untold power. And her size—her horn had begun to scrape against the ceiling of smaller rooms. She was by far the tallest pony in the room no matter where she went. Celestia, at seven feet tall, only came up to her shoulder now! And yet Rarity was still growing.

She couldn’t even shop at other stores for clothing anymore—not that she hadn’t always made her own clothes, mind you. Sewing workout shorts was new, and somewhat difficult work, though, especially when she felt her crotch getting damp at the thought of hulking through this pair just like she had all the rest.

Dash was still growing, too. Day by day, her belly bulged a little bigger. The calories from her multiple-per-day feasts were spreading out all over her body, softening and widening her figure. What had started as three ample meals a day soon became three and a snack, then three and two snacks, then four meals and three snacks a day. And that was only over the first nine days. Soon enough, Rarity had Rainbow all but drooling and tummy-rumbling every other hour, just waiting to stuff herself with second breakfast or third lunch. And that wasn’t even mentioning her midnight snacks.

Walking through the streets of Ponyville, both mares’ figures made for quite a sight. Rarity especially liked to show off, loved seeing the reactions of the ponies around—and increasingly, below—her. Every step made her biceps and thighs flex, her massive boobs bouncing. Each one was nearly the weight of a good-sized colt by now, and only looked to be getting bigger. She loved the knowledge that only she could make her own bras now, though she’d felt a hidden thrill whenever she’d contemplated “going commando,” as it were.

She wasn’t the only one who bounced, nowadays. Rainbow Dash’s boobs, nice and plump from her hefty caloric loads, bobbed up and down as she walked. So did the rest of her. Her belly was beginning to hang further over her waist, forming a pouch that sagged against her hips. Dash had stubbornly refused to buy larger clothing, insisting that she’d be back down to her normal weight soon enough anyway. Rarity certainly didn’t mind the view, though: Dash’s soft, doughy belly poked out beneath the hem of her shirt, her deeper belly button clearly visible. Her growing gut was easily her most attractive part, and jiggled with her every step.

The rest of her was no less of a turn-on, though. Rainbow’s ass was thickening, too, and it wobbled behind her as she walked. A pair of plump ass cheeks jutted out behind her, rivalring her widening hips in size. Her thighs were starting to rub together, which just made Rarity want to slip her fingers in between them and squeeze Rainbow’s chunky legs in her grasp, letting her fingers sink into the smaller mare’s flab.

Even at the slightest suggestion, Dash was always ready to eat—even out in public. That wasn’t to say that eating was all the two of them did together. Rarity was still going to the gym, after all. She may have been big, but now that she’d tasted the intoxication, she’d found that she always wanted more.

Inside the Ponyville Gym, she was the biggest mare—the biggest pony—in the room. She was head and shoulders above the competition; all eyes, if they were there at all, were on her. Some weren’t. Rarity enjoyed the faraway looks on some of the stallions she’d pass by at the weight racks, savored the way their crotches bulged when she sauntered by. Though she doubted any of them were large enough to satisfy her anymore. They were so small beside her hulking form, and only getting smaller.

Rainbow Dash, though…she might be getting large enough to satisfy Rarity’s increasing libido...though in a different way entirely. It was a shame, then, when for the first week after their first “competition,” she insisted on continuing to go to the gym alongside Rarity. It was laughable as any sort of rivalry—Rarity was just too far ahead. Once Dash started gaining noticeably, though, she started going to try and work herself back down to a slimmer size.

And Rarity just couldn’t have that.

She rounded on the line of treadmills, tossing her towel over her shoulder. She didn’t need it—she was never worked hard enough to sweat unless she wanted to be—but, being Rarity, she enjoyed having the entire workout ensemble. Her half-ton body shook the floor as she stepped around an elliptical, squeezed herself into the row and stopped just before Rainbow’s.

Rarity leaned forward over Rainbow’s treadmill’s screen, then tapped on it. “Rainbow, dear,” she said. “Are you ready to go?”

Rainbow was huffing madly. Her cheeks were red and puffed out. There was sweat rolling down her plump cheeks and forehead, and she looked absolutely exhausted. She was barely even moving at a jog, yet she looked like she wanted nothing more than to stop right there.

To her credit, though, she didn’t. Instead, she kept jogging and puffing, just barely glancing up (and up, and up, and up) at Rarity as the bigger mare peered down at her.

“Go?” Dash gasped. “Already? But we—we just got here.”

It was basically true. Then again, Rarity didn’t need to work out for longer periods of time to get bigger anymore; all she needed was the very act of exercising itself. Rolling her neck slightly, Rarity wondered how much she’d grown since coming in. Perhaps so much as an inch—or even two. The thought excited her, but not near as much as the sight of Rainbow’s plump, puffy cheeks.

“I think we’ve stayed for long enough,” Rarity said. True, it had been only fifteen or so minutes—but Rainbow Dash looked just about ready to drop, anyway. And besides, if her plump friend started working out for real, she might lose all of her progress, and that would be such a waste. “Going to the gym is usually such an endeavor. I’d say we could go out for ice cream after this, even. You deserve it after such a long workout.”

Those were the magic words. Dash instantly hit the “Stop” button on the treadmill, then slumped against the screen, all but collapsing instantly. Her big belly swayed below her, her thighs still jiggling slightly from running. “Ice...cream?” she gasped.

“Oh, yes.” Rarity beamed down at her. “It is such a warm day out, and one deserves a reward after such hard work.” Then, just in case that wasn’t enough, she added, “My treat.”

That did it. Rainbow’s eyes lit up. “Oh, yeah! Yes, please! What’re we waiting for?”

Rarity smiled as Dash heaved herself off of the treadmill, her oversized belly swaying as she stepped off. That was the attitude she wanted to see.

When they got to Sugarcube Corner, Dash couldn’t stop complaining about the line—she was a hungry mare, after all, and why should she have to wait to get ice cream? True, it may have been a tad rude, but Rarity found it thrilling to see Rainbow’s growing appetite mounted on full display before the rest of the crowd. Listening to her order her ice cream—then doubling, then tripling the amount—was music to Rarity’s ears.

Watching Dash eat her way through a king-sized sundae was an experience. As Rarity watched Rainbow stuff herself full of enough ice cream, whipped cream, and chocolate syrup to feed a small family, she was left alone with her thoughts and mounting arousal.

It was the best, Rarity decided, that she was there to guide Rainbow Dash away from slimming herself back down. After all, she’d only be disappointed at the immense disparity between her and Rarity’s sizes. At least this way, she’d be able to compete in another way—weight.

A smile curved Rarity’s face as Dash finished off the sundae. There was syrup and melted cream all around her face, and her belly bulged obscenely beneath the hem of her chocolate-stained shirt. Rainbow took her last bite, gulped it down, then leaned back in her chair. It creaked beneath her weight, complaining as her generous thighs rubbed up against the armrests. Rainbow belched loudly, then smacked her gut. It spilled past her hands, resting in her lap. She groaned, hefting her bulk into a more comfortable position.

Rarity’s smile widened as she watched Rainbow massage her belly, then burp again. She didn’t even bother to wipe her face.

Compete indeed. And besides, Rarity decided. Rainbow seemed to be enjoying herself.

The next day, Rarity took it upon herself to make Rainbow Dash a new set of clothes. It took a bit of trouble to persuade her, but once Rarity had thrown in a double-helping of dessert next meal, Rainbow had been all for it.

Once she’d finished, Rarity had taken the time to look at how Rainbow looked in her new extra-large outfit. She looked a bit chunkier than she once had—quite a bit more than a “bit,” if she was being honest—but looked much better than she had with clothes that didn’t fit. Rarity had loved seeing her outgrow her outfit, but it would have been a crime against fashion to let her go with her old, smaller clothes. Still, at least this way she’d get to see Rainbow outgrow this larger outfit, as well. The thought excited her even more.

And it looked like she’d get there. These days, Dash was eating more than enough food to outgrow even her new clothes as well. Rarity wasn’t sure when or how, but with the amount of food that Dash could pack away, it was only a matter of time. She’d really been packing on the pounds; while not quite as big as a barn yet, she’d certainly plumped up enough to be on the borderline of out-and-out fat.

Whenever she sat down to eat, the chair or bench would squeak, groaning beneath her weight. Her butt would squish down, sticking out past the end of the chair, and even overflowing the sides. Not now, but soon, Rainbow would be too wide to use even a single chair—and some day beyond that, she’d be too wide to fit comfortably through doorways. Rarity could barely wait for that day.

Dash had taken to waddling, rather than walking, to get around. It was simply no small task to haul her growing weight around, and so she’d been reduced to lumbering across rooms with her fat gut smacking against her waist with each step. Just walking across the kitchen was starting to be too much for her; any physical activity would leave her panting and sweating, with her cheeks puffed out and her tongue hanging out. Fortunately, Rarity was always there at the other end to reward her “hard work” with another treat.

And those treats were certainly having an effect. Rainbow’s belly and butt bounced with every step, and her double chin was now verging on a triple. Her round, chubby dimples were the most adorable that Rarity had ever seen, and they only rounded off her full face and body. That wasn’t even mentioning her bountiful love handles, which stuck out at her sides and wobbled above her hips as she would waddle down the hall. Rarity wanted to squeeze them like nothing else.

Rainbow’s gluttony hadn’t gone down at all since she’d started eating—if anything, it’d only grown exponentially. Her uncontrolled, gluttonous zeal for more and more calories was a sight to behold. Rarity loved watching her make a pig of herself.

“What’s that?” Rarity asked one night. Rainbow Dash had just polished off a fat bowl of pasta, and her stomach was still rumbling. “Does the little piggy want more food?”

“This growing pegasus,” Dash corrected her, “needs her meals, damn it.”

“Fine.” Rarity arched an elegant eyebrow down at her. “I do have a price, though.”

“Fine,” Dash said. “What is it?”

“Simple. Just say ‘oink,’ and I’ll give it to you.”

“Rarity, I—”

“Ah-ah.” Rarity wagged her finger before Rainbow’s face. Behind her shoulder hovered a platter full of cookies. “That’s not the voice of a polite little piggy. Now, ask properly, darling.”

Rainbow’s cheeks flushed. “Oink, oink,” she mumbled. Then she was reaching outward, grabbing for the plate with chubby fingers. “Now gimme!”

“Good girl,” Rarity purred. She floated the platter down into Rainbow’s grip. Instantly, the heavy pegasus began shoving handfuls of cookies into her muzzle. “Was that so hard?”

But Rainbow had eyes and ears only for her next stuffing. In what seemed like no time at all, the cookies were gone, and her gut was bigger and rounder than ever.

These days, it was rare for a post-meal Rainbow Dash to finish off without feeling stuffed. Food just seemed to vanish down her throat; her belly was always big, round, and bloated as it struggled to digest three or four meals at once. It was getting better at it, though. Rainbow Dash was always ravenous; everywhere she went, whether in the Boutique or in Ponyville, she carried a bag of sweets to constantly snack on. It was becoming a rare occurrence to find her without some kind of sauce drizzling down her chins, whether chocolate from a candy bar she’d gorged upon, or grease from a burger.

Rarity always felt a thrill of excitement when she saw Rainbow unbuttoning her pants to make more room. Her belly was beginning to roll out beneath the blouse Rarity had sewn for her; it was just too big not to. Two nights later, Rarity and Dash were again sitting in the kitchen, with Rarity watching Rainbow finish off the remnants of her feast.

Rainbow’s gurgling belly was the only sound in the otherwise silent room. She smacked her food-stained lips, then leaned back in her chair. She burped, then giggled. “No more room,” she said, patting her gut.

“Oh?” Rarity asked. “Are you so sure?”

Rainbow groaned, then belched again. She began to rub her belly softly, which of course elicited a third belch. “Yeah. M’good.” She made to rearrange herself, to get into a more comfortable position, but found she couldn’t. Her butt had gotten stuck in the chair.

Rarity noticed, of course. On the outside, she said nothing. On the inside, however, she couldn’t stand how absolutely delicious the whole thing was.

“Uh, Rares?” Dash said. She was blushing furiously. “I, uh—think I might be stuck.”

“Really? Rarity said. She feigned ignorance. “How so?”

Dash’s blush deepened, until it was competing with the chocolate stains on her dimples for sheer color. “I think my flank—nggh—is too big.” She tried to rock back and forth a bit, but succeeded in nothing more than wedging her fat flank even further between the armrests.

“Shall I assist you, dear?” Rarity stood up. At eight and a half feet, she’d found that the top of her horn now always scraped against the ceiling whenever she was inside. It wouldn’t be long now before she’d have to crawl to fit through the doors. Her broad shoulders and wide chest already fitting a difficulty, and soon, an impossibility. Yet Rainbow seemed to be having the trouble as well, though in a different respect entirely.

“Oh. Yeah, probably. I just—” Rainbow let out a yelp as Rarity reached down and took her in her arms. Rarity pinched Rainbow’s ample rear between her forearms then forced her clear of the constricting chair. Once freed, Rainbow’s flanks wobbled wildly, her tight pants not nearly supportive enough to contain her chunky thighs and ass.

“Oh.” Rainbow blushed as Rarity hefted her as easily as an infant. She looked like a foal, too, cradled in the bigger, muscular unicorn’s arms. She was a heck of a lot heavier than one, though, with a big, rounded belly that jiggled as Rarity pulled her against her chest. “Thanks. You can, uh, let me down know.”

“Oh, I don’t think so.” Rarity smiled down at her, then began to walk out of the kitchen.

“Hey,” Rainbow said. “Where’re you going?”

“The sitting room.” Rarity ducked beneath the doorframe and rounded the edge of the sofa. The back pillow didn’t even reach her shoulder blades anymore, but she enjoyed keeping it around—both for company to use, and as a convenient metric to see how much she’d grown. It creaked loudly, groaning beneath her half-ton of muscle as she sat down.

Rainbow Dash scowled up at her. Rarity had grabbed her tight to her chest, her massive bust squishing against Rainbow’s flabby neck. Nestled in Rarity’s lap, Rainbow really did look like a filly, albeit a thoroughly round one. “What’s the big idea?” Rainbow demanded. “What’re you—ooh.”

Rarity smiled kindly down at her. “Yes, dear?” she asked innocently. “What was that?” Rainbow Dash’s belly pressed against her forearms. The smaller, wider mare was completely under her power, and she loved it.

Dash just groaned. Rarity had begun to massage her bloated belly, her strong fingers sinking just a little bit into her taut coat. “N-nothing,” Dash mumbled, trembling with pleasure.

Rarity’s smile widened. She could feel just how big Dash had been getting. Rainbow’s belly spilled completely over her lap. Her new blouse was big enough to contain it, but just barely. It was already straining a bit. Rarity just kept caressing Rainbow’s middle, caressing her flab and cuddling her plump body against her own Amazonian one.

“Nggh.” Dash glanced down at her belly, as if seeing it for the first time. “I may have eaten a little bit too much.”

Rarity kept on rubbing. That was a bit of an understatement. Rainbow’s large, round, overstuffed belly was a glory to behold. It was a monument to her growing, unbridled gluttony. “A little?” she teased. “You ate enough food to feed a whole family.”

That got to her. Dash instantly flushed, her plump cheeks turning a bright cherry red. “Yeah, so? Everypony likes to have a lazy day sometimes.”

“Of course, dear.” Rarity stroked Rainbow’s belly thoughtfully, then gave it a quick squeeze. Rainbow gasped in pleasure. Meanwhile, Rarity levitated a platter from the kitchen counter and floated it into the room.

It was a cake—a big, three-layer chocolate cake. Rarity had had Pinkie pull out all the stops for this one. It was a big, rich cake, full of chocolate and mousse and every kind of fattening chocolatey flavor that the party pony could imagine. From the moment it entered the room, Rainbow Dash’s mouth began to water from the smell alone. Rarity’s smile widened.

“Would you like some more, Dashie?” Rarity asked. “I just bought all of this cake, but I couldn’t possibly eat all of it alone.”

“I—” Dash stared into space for a moment, as if trying to find a way to deny her. Then her nostrils flared again, as if tasting the cake’s scent for the first time. A look of complete hunger crossed her face. “Fine. Just a little bit.”

“Very good,” Rarity said. “I hoped you might say that.”

She didn’t use utensils—she didn’t need to. Instead, she simply broke off a pre-cut piece of cake with her magic and levitated it over to Rainbow’s mouth. It was a testament to Rainbow’s piggishness that she didn’t even ask for a plate or fork. Instead, she was content to merely wolf it down as Rarity fed it to her, scarfing down bite after bite of rich, chocolatey goodness.

She gulped down the first slice easily enough. By the second one, though, she was obviously slowing down. “Ugh,” Dash groaned, rubbing her belly. She couldn’t reach all of it, though, so Rarity kept her own belly-rubs going. “I’m so full, but it smells so good.”

Rarity kept on kneading Rainbow’s gut. “Just one more slice,” she murmured. “You can take one more slice.” Rainbow’s belly had already expanded a good bit since the start of dinner. It was straining against the fabric of her blouse, big bulges of chunky belly-flesh poking through any cracks in the material. Rainbow finished the last bite of the slice, swallowed, then moaned. Rarity had slipped her hand down her leg, between her belly and her thigh. She gave the tender, wobbling flesh a squeeze, and smiled at its warmth.

“One...more,” Rainbow mumbled. It soon became her mantra. One more slice. Just one more. She kept going, wolfing down slice after slice as Rarity fed them to her. By the time she was halfway through the cake, there were chocolate stains all around her muzzle, and she was feeling more full than ever.

She groaned, then belched loudly. She massaged her gut, her fingers sinking into her tender stomach’s softness. The buttons of her shirt were straining, and the seams of her pants looked just about ready to snap. Yet the instant Rarity prodded another slice of cake against her lips, Rainbow was powerless to do anything but open wide and wolf it eagerly. Even the sound of her consumption was reminiscent of a snorting, snuffling, soon-to-be-stuffed pig.

Rarity’s fingers smoothed along Rainbow’s chunky thigh, then teased toward her crotch. Rainbow moaned—then moaned again when Rarity pulled her hand away, returning to massaging Rainbow’s thunder thighs. She imagined the fat spreading out over Dash’s figure, growing her wider and wider. She could feel Dash’s fat ass, which filled out her pants and more, grinding against her crotch. Rarity’s marehood was puffy and hot by now; her breathing grew labored as she grew wetter. She kept feeling up Rainbow’s round, plump body, getting more and more turned on by the second.

There was a warmth growing inside of her. Rarity’s eyes fluttered shut, and she groaned. Was she growing again? Getting taller, thicker, stronger—was that how turned on she was right now? And yet she was far from the only one growing at the moment.

The moment Dash swallowed the last of her ninth slice, the middle button on her shirt popped off. It burst off her belly, letting a healthy-sized chunk of her stomach poke through the new hole in her shirt. She didn’t seem to notice, though, far too focused on eating to account for literally outgrowing her clothes. Another button followed the first, then a third, more and more of her big plump belly coming into view until there was only one button left. As Dash wolfed down the last slice, her final button exploded off of her shirt, letting her full stomach burst free.

Her big, glorious belly flopped out onto her lap. It rippled and wobbled madly, its consistency more like a waterbed than anything else. She moaned as Rarity massaged her wide, heavy flank, crumbs spilling from her chins onto her bloated, overstuffed gut. It spilled over her lap, over her thighs, even touching Rarity’s muscular legs in some places.

Rarity beamed. “Good little piggy,” she murmured. She kept stroking Dash’s belly, massaging it. The poor, round mare was too stuffed to even do it herself, lost in some kind of gluttonous stupor. “You liked that, didn’t you? You ate the whole thing. That cake could have fed a whole party, but you ate it all—and more.”

Rainbow moaned. Rarity smiled.

“No more for now,” Rarity murmured. She stroked Dash’s belly. “You did well, my big filly. There will be more tomorrow, though. I promise.”

She kept rubbing Rainbow’s belly. Dash groaned, her eyes fluttering open.

“Keep...rubbin’,” she mumbled sleepily. “Feels... S’good.”

“Of course, darling.” Rarity smiled down at her. “Of course.”

Dash smiled sleepily back up at her. Then her eyes slowly drifted close. Rarity hummed softly, stroking Rainbow’s bloated belly as the other mare slowly fell asleep. Her neck rolls squished against Rarity’s soft, massive breasts as her massage continued. It continued well on into the night.

The next day found both mares back at the gym. Rarity went every morning, of course, but once more, Rainbow insisted on tagging along. Even as she asked, Dash realized that her heart wasn’t entirely in it. Her pride, though, forced her to follow along regardless.

She waddled the whole way; by the time they even got to the gym, Dash was panting and sweating like a pig. Still, there was a flicker of defiance in her gut that pushed her to keep going. To work out, to slim down—this was just a bit of winter weight, she told herself (even though it was summer). She could get rid of it easily enough.

But did she want to?

Every step to the gym, Rainbow found that her thick, chunky thighs were rubbing against one another—and her marehood. By the time they got to the front doors of the gym, she wasn’t just panting out of exhaustion. In a way, she was thankful for the sweat from her exertion. It hid the sweat from her growing arousal.

Why did she feel this good? She was fa—heavy. She’d been letting herself eat too much. This shouldn’t feel good. And yet...it did. Somehow.

Still, though, that spark of defiance flickered in her chest. It lingered in the back of her mind: an image of her former self. Slim, slender, athletic. Sexy.

And then they passed through the front doors and that spark froze.

“Hey, lard-ass! Here to workout? Or are you just here to eat somepony?” A chuckle. "Congrats, by the way. I guess you can get big some way, at least.”

Rainbow froze in place. Beside her, Rarity stood stock-still, her massive form slightly bent to avoid touching the ceiling. Before them, leaning against the counter, was Thunderlane. He had his shirt off—that asshole—baring his clean-cut pecs and carefully sculpted six pack. When he laughed, his slender waist flexed.

“I—” Rainbow’s cheeks flushed. Thunderlane’s call had done its work. Now everypony in the lobby was looking at her. Some with pity, and others with disgust at the oversized mare.

Dash glanced down at her belly and, for the first time, realized just how big she actually was. She was so wide, so round. Her belly stuck out in front of her, not even contained by the new shirt Rarity had sewn for her. Her belly button, long and wide and round, was bared to the world, and at least two or three folds of fat were visible beneath the hem of her shirt.

Holy cow. How had she gotten so big? And when—

Rarity prodded her shoulder. “Come on, darling,” she said. “Thunderlane was nice enough to give you a compliment! You should thank him.”

Thank him? There wasn’t a single universe in which that had been a compliment! And yet...somehow, she didn’t think Rarity was going to let her off without going through.

She swallowed. “Thank you,” she said, mumbling.

Rarity squeezed her shoulder again. “Really, dear,” she said. “Thunderlane complimented your figure—all of your new curves. The least you can do is thank him properly.”

“C’mon, fatass,” Thunderlane teased. “Thank me.”

Rainbow’s fists clenched. “Thank you,” she bit out. “For the compliment.”

Thunderlane reared back, cackling and clapping. Rarity just murmured. “Very good, Rainbow.” But Dash wasn’t listening.

Rainbow Dash’s lower lip trembled. Not out of shame, or out of despair.

She was the most turned-on she’d ever been in her life.

It was a sudden realization, a wave of recognition that came crashing over her. Letting Rarity stuff her, massage her, cuddle her—she’d liked that. She’d liked feeling herself blimp up, feeling her belly grow larger and larger, feeling her thighs widen until there wasn’t a hair’s width of space between them. She’d looked in the mirror and seen, though not seen, her growing triple chin, and had walked out of the bathroom with a mounting heat between her legs.

Everypony in the lobby was staring at her. Fit mares, muscled stallions, ponies with slender, athletic bodies that she’d outmatched when she’d been skinny. But now, standing before them with a body like a beached whale, Rainbow Dash felt...incredible. Aroused. Powerful, even. Her bulk, her fat, was drawing everypony’s eye, keeping every gaze glued onto her every rounded curve and fold.

It was then that she realized that Thunderlane was still looking at her expectantly. Unwilling to give him what he really wanted, Rainbow just leaned slightly back, crossing her arms over her big, round gut, and stared him in the eye.

“So, Fat-bow Dash,” Thunderlane said, leering. “Just how many cakes did you cram down your throat yesterday?”

“Two.” Dash met his gaze unflinching. "Big ones." Then, slowly, she smiled until she was staring back at him with a full-toothed grin. She smacked her belly, belched, then grinned even wider when everyone in the room winced. “Which is way more than I bet you could handle.” Thunderlane blinked.

“C’mon, Rares,” she said, turning to go. Her belly smacked against her thighs as she turned; it was a struggle not to moan in arousal at the easy reminder of her new size and weight. “Let’s head back home. I wanna clear out that leftover pizza you had in the fridge.”

“Ooh, yes.” Rarity smiled. “Of course, darling.”

Rainbow paused. “Oh, and Thunder?” she said. She glanced over her shoulder and smirked. “You can do way better than ‘Fat-bow’.”

The doors slammed shut behind them, leaving Thunderlane gaping and the rest of the lobby in a stunned silence.

On the way back, Rarity was constantly chattering—about clothes, about workouts, about meals and snacks and desserts. Rainbow’s stomach grumbled hungrily when she heard the word “brownie” slip out for the third time, but otherwise, she wasn’t listening. Her mind was elsewhere.

Walking through downtown Ponyville like this, she was suddenly aware of just how much everypony could see of her. She was huge. It wasn’t just the hyper-fit ponies of the gym that were staring at her now. Everyone they passed had a glance to spare for the flabby, overweight pegasus. Some looked disgusted. Others looked shocked—maybe they recognized her? Once or twice, Dash caught a spark of interest in somepony’s eye that matched the look in Rarity’s. Mostly, though, she just felt fat.

Fat. What a word. She was Rainbow Dash! She was thin! Skinny! Athletic! But now, with her gut jutting out a good two and a half feet in front of her, and her whole body jiggling like a bowl of jello, it was hard to deny what she’d become. Muscle didn’t wobble; muscle didn’t bounce and gurgle.

Her huge gut bounced with every step she took, hanging over her waist and smacking against her chunky legs. Heaving her huge body forward took an equally huge amount of effort. Dash thought she could see flashes of smugness in the onlooking ponies at her inability to even walk cleanly down the road. She was just too heavy for it to be easy anymore. Her thick thunder thighs rubbed against one another as she walked; her fat ass, bulging out the back of her pants, smacked against the backs of her legs with every step, her globular asscheeks sliding up and over one another as she moved.

She felt like a beached whale, exposed before everyone they passed by. That was when it hit her—something she’d known all along, but had refused to recognize. Rarity liked this—liked seeing her like this. This wasn’t just a walk; this was a parade. Rarity was parading her in front of the whole town, showing Rainbow off in all of her fat, flabby glory. And it was working: everyone’s attention was on the huge, lard-ass of a pegasus waddling across town, her huge belly swaying and gurgling with her every motion. And Rainbow Dash loved it.

She’d almost allowed herself to realize it the other night, when Rarity had been rubbing her belly. Now, though, she realized that it wasn’t just eating that she loved: it was being fat that turned her on like nothing else. Her chunky thighs rubbed against her labia; her huge breasts, which would have outmatched all but the absolute largest busts in Equestria, bounced and swayed as she breathed. Rainbow felt like she was an exhibit for everyone to see; she felt like she was naked in her strained, too-tight clothes, with every inch of her huge, round body on display for all of Ponyville to see. Suddenly, she couldn’t have felt more aroused.

She moaned as she walked, first under her breath, then a bit louder. She wished she’d brought along her bag of snacks, so she could keep stuffing her face as she walked, savoring the looks of shock on everypony’s faces as she stuffed herself full. As it was, her moans were beginning to make some of the onlookers uncomfortable. She couldn’t help it, though—didn’t want to help it, even. Every inch of her huge body just felt so good, from her thick toes to her huge, flabby love-handles. The sensation of her folds rubbing against one another was nearly unbearable, and the onlookers’ expressions even more so.

She savored their gazes all the way home, watching them watch her until the door of the Boutique slammed shut behind her.

As the door clicked shut, Rainbow found herself standing in the entrance to the Boutique. Rarity was standing a few yards away, her back to the door.

Rainbow wanted to say something, but didn’t—couldn’t. She stayed quiet, her eyes flickering up at Rarity’s hulking form.

Geeze, but she’d never realized just how huge Rarity had been getting. How tall, how thick, how strong she was. With a shiver, Rainbow noticed one of Rarity’s biceps flexing idly. That thing would have been wider than her whole body at one point.

But that was...before. Suddenly, her massive stomach loomed in her vision. Rainbow hugged her arms around it, feeling the soft flesh squish beneath her palms. There was just too much of it; she couldn’t even reach halfway around. Her massive breasts, each one easily the size of a large melon, sat comfortably atop her gut. Just like Rarity, she was huge—though, she admitted silently, in an entirely different way.

“Rarity?” Her voice cut through the silence of the Boutique like a knife. “Am I...fat?”

Rarity’s reply sounded more cautious than anything. “Why? Do you want to be fat?”

“Yes.” The word had slipped out of Rainbow’s mouth before she’d even realized it was open. With it hovering in the air between them, though, she realized it was the truth. It had been the truth out there, in front of Thunderlane, and it was the truth in here. It might even have been, she realized, the truth all along. She swallowed. “More than anything I’ve ever wanted.”

Slowly, Rarity turned around. She was smirking. “Go on.”

Rainbow Dash took a deep breath. Her belly rose a half-inch into the air, and jiggled when she let it back down. “I love being...big,” she blurted. “I used to love watching how I ate, working out, staying thin—but just letting go and eating feels so good. It tastes so good. Stuffing my face is the most fun I’ve ever had.

“And I love being heavier, too,” she said. She was on a roll, now; if she stopped, she feared she might not be able to start again. “Fatter, I guess. I’m almost kinda scared of it. Every morning when I wake up, I want to see my belly even higher above me. I want to see the bathroom scale go higher and higher ‘till it breaks.” Dash’s hands were trembling, her pudgy fingers clenching and unclenching at her sides. “When I can’t fit into my clothes...gah! I’ve never been so turned...on.”

Then she realized what she’d just said. She gulped, but stood tall—or at least as tall as she could, considering she was more than half as wide as she was tall.

“So.” Rarity’s voice was dangerously quiet. “What you’re saying is that you’re a big, fat pig who gets off to her own fat body?”

“Huh?” Rainbow blinked.

“Are you a pony?” Rarity said. “Or are you a pig who just can’t wait to stuff her face with food?”

Rainbow smelt it before she saw it. As the rich, intoxicating aroma of chocolate entered her nostrils, she felt her knees almost buckle beneath her. Rarity’s horn flickered, levitating a platter stacked high with brownies into the room from the kitchen. They were big, thick brownies, too, absolutely stuffed with chocolate chips and drenched in fudge.

“Pinkie brought them over this morning,” Rarity said nonchalantly. “They smell good, don’t they?”

Rainbow nodded. She was too busy salivating to speak.

“I’ll bet you’d like to eat them all, wouldn’t you?” Rainbow Dash nodded. “Then answer the question.”

Rainbow Dash licked away a drop of spittle from her lips. “Fine,” she said, her voice cracking. “I’m a big, fat pig. Oink, oink. Now gimme the brownies!” She grabbed for the plate, her fat, flabby underarms slapping against her bust.

“Ah-ah.” The platter hovered a few inches higher; Rainbow whimpered softly. Rarity’s eyebrow curved delicately. “Not just yet. I have something else I’ll need you to do for me first.”

Her horn glowing, Rarity levitated a large box over from a corner of the room. She unpacked it, then lifted a big pile of fabric into the air. Dangling there, right before Rainbow’s eyes, was unmistakably a pig suit.

It had everything: the ears (on top of a hood), the snout (a strap-on accessory), the curly tail (sticking out from a fat, swollen behind the width of nearly three ponies). Rarity’s grin was sly as she hefted it into the air and said, “I made this for you. I want you to really embrace just how much of a pig you’ve become, darling.”

Rainbow watched the pig costume for a moment, bobbing in the air. “I, uh.” Her mouth went dry; she unsubtly rubbed her fat thighs together at the sight of it. For some reason, this confrontation with her true, gluttonous nature was turning her on like nothing else had yet. “Then I get the brownies?”

“Yes,” Rarity said. “But you have to keep wearing it—until the day your fat flank and belly rip their way out of it. And you have to oink for me every time you want another feeding.”

‘I’ll wear it,” Rainbow Dash blurted. She wanted this, she realized. She hadn’t known it, but she had. She wanted, needed to let everypony see what she really was: a fat, growing piggy who couldn’t wait to stuff her gut full of food.

Rarity’s smile broadened. “Excellent, darling.” It took some doing, but Rarity’s increased magical strength managed to fit even Dash’s massive body into the suit without much work. “Now...I believe I have some brownies for you?”

Dash yelped as Rarity’s magic yanked her up into the air beside her. The platter was mere inches away, its scent succulent, overpowering. She whimpered, her tummy grumbling.

“Oink for me,” Rarity murmured.

“Oink,” Dash said. She was quiet at first, but then: “Oink. Oink! Oink! Give me my food! Oink, oink, oink!”

“Good piggy,” Rarity said—and slid the platter over. Dash immediately began shoveling the brownies into her mouth, gulping them down nearly as quickly as she could pick them up. Rarity giggled, then moaned softly.

“Yes,” Rarity murmured. She began to stroke Dash’s belly, the curve of Rainbow’s massive gut soft and fluffy due to the pig suit covering it. “Eat right up, my big piggy. Eat your fill. Get nice and big and fat.”

Dash groaned as she swallowed an entire brownie at once. Flecks of chocolate and syrup were staining her cheeks and lips. Then she moaned as Rarity’s hand slipped between her massive gut and thigh, then slipped between her thighs, moving up toward her crotch.

“Nice and big,” Rarity said. “Nice and round and soft.”

Rainbow moaned again. She was getting wet—so wet, so turned on. It wasn’t just Rarity’s stroking, though, or the way her muscular forearm had slid across the curve of her massive gut. It was the food, too: eating had become a downright erotic, if not religious experience for her now. Every scrap of food she shoved into her mouth just made her even wetter, made her loins burn all the hotter as she stuffed herself fuller, bigger, wider.

Rarity chuckled, a low and rich sound. “You turn me on too, dear,” she murmured. Dash gasped for air as Rarity’s thick fingers wormed their way through her thunder thighs to rub tenderly against her fat cameltoe. “I just adore seeing how soft and wide you are compared to me. Every inch of my body is like hard, sculpted marble—but with your body, there is no greater contrast.

“You need to keep getting bigger,” Rarity said breathily, “bigger and fatter and heavier.” Her lips brushed against Dash’s ear as her fingers began rubbing harder, pleasuring Dash all the more. “I need someone to really grow with me.”

Rarity was rubbing her own clit by now, her puffy marehood’s lips completely outlined in the painted-on shorts she was wearing. Her free hand had moved around Dash’s rear, playing with and squeezing the huge mare’s fat and flabby flank. Dash kept moaning, cramming brownies into her face one by one. She scarfed them all down, caring for nothing but her own pleasure and gluttony. Eat, eat, eat, she told herself. “Oink,” she mumbled between bites. “Oink, oink, oink.” Even her eating sounded like a pig—snuffling, groaning, gulping as she searched for more and more food to fill herself up with.

Rainbow Dash didn’t even care anymore. All she knew was eating: stuffing, slopping, gulping food down until she could eat no more. She was out of control and she knew it. She wanted to stuff herself, to feel her own incredible fullness. To be completely engorged. To feel her fat, full belly rest on her pillowy thighs; to fatten herself up like a blimp until nopony could ignore her bulk. She wanted to eat, burp, rub, eat, eat, eat. She felt so sexy, so big, so excited to gain and grow more and more and more—

As the last of the brownies vanished down her throat, Dash let out a long, echoing belch. It was mixed with a groan, though, pleasure suffusing her body as Rarity’s skillful fingers finished their work. Dash came hard, her whole body shaking and jiggling with her mountainous belly as she went over the edge. Her fat, swollen marehood throbbed, her sweet juices leaking out over her slick, soft thighs. Dash cried out, half in pleasure, half in sheer desire for more as her rippling fat stimulated her even further.

When she was finally done, her chest was heaving. Her belly stood before her like a tonne of lead: a huge, ponderous bulk filled to bursting with food. Dash whimpered slightly as Rarity gave her marehood one last squeeze before pulling her hand away.

“Good piggy,” Rarity murmured. “You ate every last bite.”

Dash groaned softly. She tried to hold onto her belly, and found she couldn’t. “But I’m...still hungry.” She burped.

“Of course you are.” Rarity began to rub Dash’s stomach again, softly, letting the huge buckets of flab fall gently over her arm. “And you’ll always be hungry, won’t you? Always ready to stuff yourself full.”

“Yes,” Dash said. She was almost whispering.

Rarity smiled. “Tell me, Dash,” she said. “Just how big do you want to get?”

Dash closed her eyes. In that instant, she had a vision: a belly, wider than she was tall; a pair of legs thicker than tree trunks, a huge, gurgling gut taller than Rarity, taller than the house, even, forever growing, forever being stuffed as it grew past the point of immobility until there was nothing larger.

Her eyes snapped open. “Big,” she said, and belched.