Cadance's Colonic Coronation

Nasally laughter and idle conversation filled the castle dining hall. Wine poured into glasses, as neat forkfuls of food disappeared into the mouths of the two dozen elegant ponies in attendance.

Among the company were ministers, delegates, countesses, counts, barons and earls. Depending on who you asked, these ponies were the most prestigious in all of Canterlot, maybe even all of Equestria. Ponies bowed to them as they walked down the streets, deigned to kiss their hooves, despite the fact that they were not even royalty.

At the head of this cultivated feast sat the three princesses: Celestia, Luna, and Cadance.

This was the first royal dinner function Cadance had been invited to, and her nerves were already starting to get the better of her.

While she had been raised into aristocracy, social affairs had never been her forte. For starters, everypony seemed to become stiff automatons under the pressure of such an exclusive event, trading meaningless small talk as they took little sips of wine and even littler nibbles of food. It was less about eating and more about boasting of one's accomplishments in the hopes of vying for the attention and acceptance of the royal sisters.

The dreaded conversations were perhaps Cadance's least favorite aspect. A hundred different forks whose uses were a mystery? The Prench dishes with names she could hardly pronounce? Those were nothing compared to the agonizingly droll conversation.

"And then, if you'll believe it, Madame Saddlesby arrived at the gala with the exact same hat as mine! Oh, you should have seen the look on my face! I resembled an overripe tomato!"

Laughter rippled around the table, with even Celestia and Luna offering a modest titter. Cadance, on the other hoof, couldn't even force a smirk. Had that even been a joke?

"Goodness! I can't begin to imagine your embarrassment, ambassador!"

The guests traded more and more of these dull anecdotes, with Cadance barely managing to stay awake as she listened along to the ebb and flow of the conversation. She couldn't help but notice that Celestia and Luna disapprovingly glancing her way every now and then.

"Oh, this heat!" One of the barons produced a paper fan from his satchel and started to waft himself. "I say, Celestia, can't you hide the sun behind some clouds for a bit? I'm positively baking!"

The group laughed, and Celestia bowed her head with a smile.

"I'm afraid clouds are not part of my jurisdiction, Baron Hackamore, and even if they were I cannot meddle with the sun's heat, only its position in the sky. Perhaps my sister will be kind enough to give you a nice cool night."

Just as Cadance thought she could make it through the rest of the dinner without saying a word, the mare to her left turned and curled her lip.

"Dear, you must have some stories to tell. How has it been acclimating to life in the castle here? Rather spacious, I should think."

Cadance cleared her throat. All eyes were on her.

"Well..." She began, trying to ease her nerves with a quick sip of champagne, "It has been nothing but pleasant. My chambers are quite lavish. The only slight concern is Celestia's snoring, at first I feared a wild manticore was rampaging through the castle!"

The dinner guests offered a round of reserved laughter, but there was not so much as a smirk from the head of the table. Celestia and Luna turned to Cadance with an icy stare.

The conversation divulged into another matter, and it seemed Cadance had managed to evade too much scrutiny from the other ponies, but all of that changed when Celestia suddenly got up from the table and cleared her throat.

"Please excuse me and my sister. We just need to have a word with Princess Cadance out in the hallway. Royal business."

Oh no.

Cadance's heart pounded in her chest at a million beats a second. The sisters departed from the room without a further word, leaving her to bow to the guests, jump to her hooves and follow them.

They marched down the corridor, Cadance trailing along behind.

"This way." Luna told her curtly.

A stern talking to from the Princesses could never be a good thing. Cadance swallowed hard as they rounded a corner, and then another, soon so far away from the dining hall that the laughter died away, and was replaced by gentle birdsong coming through the nearest open window.

“That behaviour was completely unacceptable.” Celestia didn’t even turn to speak, nor did she slow her strut. Cadance managed to catch up to the sisters but was still made to trot behind them, largely owing to the fact that together, their double-wide asses hogged the entire width of the corridor.

Not only did she notice how plump and plentiful the royal plots were, but being downwind of the sisters she couldn’t help picking up on their very striking fragrance. At first, she wondered if the smell had come from herself, but even on days as muggy as this one she never smelledthisrepugnant. Sweaty and sour, the aroma of the sisters’ sweat clung to Cadance’s nose like an evil curse. She turned her head, lagged behind a few paces, but nothing made it any more tolerable. She was about to cover her face with a hoof but realized she was in no position to defy the princesses.

They both came to an abrupt halt, forcing Cadance into an emergecy stop. She narrowly avoided a face-first impact with the luscious derrières.

“Oh, thank goodness we’re out of earshot. I’ve been holding this in since the entrees…”

At first Cadance wasn’t sure what Celestia was referring to, but as she noticed an intense gurgle from the princess’ stomach it all became clear. Her realization came a few moments too late, and before she could brace herself Princess Celestia lifted her tail and blew a loud, trumpeting fart directly into the smaller alicorn’s face!

PHRRRRRRT!

The expulsion rippled through Celestia’s crack, rivulets of sweat dribbling down her legs as a small tsunami of quakes erupted across her white mounds.

The thick, fermented slipstream of ghastly wind roared over Cadance’s face, tousling her mane in the process.

After an astonishing twelve seconds it became deep and choppy, culminating just a couple of seconds later with a high pitched squeak. It was the longest, hottest fart Cadance had ever witnessed, and had come from the rear end of none other than Princess Celestia herself!

She was so shocked to have Celestia fart blasted in her face that she didn’t even consider the smell until it was far too late.

Cadance wasn’t sure whether it was the starter of artichoke soup, or something Celestia had eaten the day prior, but her brand was nothing short of horrendous. The miasma was two parts broccoli, one part vanilla extract, and wholly abysmal.

Stumbling around with wall eyes, Cadance was lucky not to collapse from the stench alone.

Celestia and Luna looked back and giggled.

"Not bad, sister." Luna complimented. Evidently she was in on this just as much as Celestia.

"I could hear it swirling about in thy cauldron throughout the entire first course! We applaudeth thou for not letting it slip there and then."

Celestia smiled modestly as she wafted her sweaty face. "You and I both. I came close a few times, thought I might have to blame it on one of the other guests, but really I knew I had to save it for our rude little traitor here."

"T-Traitor!?"

Celestia's humorous mask fell. Her daggered stare drifted back to Cadance. "Did I say you could speak? You're already on very thin ice. It would be a pity for it to shatter."

Cadance lowered her head. Celestia’s words had sapped every last shred of resistance from her.

"Now, we shall have to see about your punishment."

"And the only way to punish an insolent little worm like this one is teaching it a lesson it won’t soon forget."

With this, the two much larger ponies circled Cadance like sharks. She silently prayed that somepony would stumble across the display and intervene, but really who would dare? Celestia and Luna were not to be meddled with. She already knew that, and her nightmare had only just begun.

They both paused and pointed their rumps at Cadance. She flinched, expecting more farts, but for now none came.

One by one, they jerked their hips up and down. Their meaty cushions started to clap, sweat and stink wafting forth with every resounding slap of buttmeat. Cadance turned to Luna's rear, then Celestia's, unable to decide which she'd rather face. They were supposed to be royalty, for Starswirl's sake! This twerk-tacular display was nothing short of obscene!

"Mnh! My flanks really needed a good airing out~"

Celestia moaned as she threw herself up and down.

The violent up and down motion rustled her guts, and soon gas started to spill out in short, snappy bursts.

"And airing out thy plot thou doest well..." Luna chortled, squeezing free a few of her own bubbly bouts as not to be too overshadowed by her sister.

The hot stink blew over Cadance from both sides. She puffed her cheeks and tried not to breathe, but even after Celestia and Luna's obscene twerk-off wound down and she finally chanced a breath, the stench of princess bowels was all that filled her lungs. In fact, she reckoned it would be all she could taste or smell for a number of weeks.

Her entire body tingled as a cloak of yellow magic appeared around her. In all her disgust she had seemed to forget that both princesses possessed magic that greatly overpowered hers.

Celestia upended Cadance and pressed her against the cool marble wall. When she opened her panicked eyes, the first thing she saw was Celestia's ass flying into her like a juggernaut. With the impact came a sharp squelch that made even Luna wince.

With her victim packed tightly between her orbs, Celestia flexed those cheeks and released more her solar fumes. This time they came with an uncharacteristically silent gush; a hissing, howling wind of olfactory Armageddon from which there was no escape for Cadance. Up close, the smell of Celly gas was downright intolerable. Rotten veggies, spoiled milk, cloying eggs and goodness knew what else abused her senses for the entire ten second duration of Celestia's soundless windstorm.

The hefty princess twisted her neck back and sampled her own exhaust with a few risky sniffs. Her eyes went to pinpricks.

"Phew! I should really start practising some portion control!"

Luna crinkled her snout and waved a hoof in front of her face. Celestia's farts always had a certain fetid quality to them that really turned her stomach. She was just glad that today somepony other than her was the target of her sundust. "Indeed. They hath been even more vile than usual lately."

"I'm sorry! I'm sorry! I've learned my lesson, I won't do it again!" Cadance started to plead, Celestia's hot, pungent brew filling her mouth every time she opened it. She went for another round of pleas, but her whimpered voice became suffocated in the ocean of smelly white pudge.

Luna glanced to Celestia. They both smirked.

"Learned thy lesson?" Luna chortled, "But class hath not yet started!"

Celestia finally relinquished her press on the smaller alicorn's body, along with her magical hold. Cadance slid down the wall, where an impression of Celestia's plot had been steamed like breath on a cold window.

"Come along." Celestia and Luna were already on the move again.

Wobbling to her hooves, Cadance staggered behind them, fearful of whatever was coming next...

"In here please." Celestia led the way down the hallway and out the door, forcing Cadance to trot behind her horrid-smelling backside a little while longer. She could still smell the essence of those last farts clinging to her crevice, and every time Celestia’s innards let off a gulping gurgle, Cadance impulsively winced and primed herself for more wind. For now, those winds were at bay.

The trio now found themselves in the royal solarium, which seemed just about the worst place to be on a day like today. A more recent addition to the castle, the conservatory was built with huge glass panes on the walls and clerestory roof.

Considering the blazing summer sun was still the only thing up in the sky, the glass became a magnifying glass; the three Princesses the ants held beneath its scorching gaze.

The room was already muggier than a sauna when they entered, only adding extra gallons of sweat to the royal sister's output. In fact, Cadance thought to herself that even the air in the castle sweat lodge was thinner than this. It felt like she was trying to walk through soup.

Luna sighed and threw herself across a chaise lounge, taking up a paper fan and wafting herself with it. Cadance could see the droplets of sweat cascading down her face and neck like little snakes, threading through her coat. With little plip-plops these droplets knocked loose from her body and hurtled to the floor below. The solarium was so hot that they evaporated upon impact.

"Oh, it's sweltering in here! I fear I’ll boil alive!"

"That makes two of us." Celestia giggled. She saw the intense heat of the room as more of a bonus than a hindrance. As she walked, her ass cheeks now squelched. She sought out a plush feather cushion laid on the only other seat in the solarium and planted her enormous tush upon it. She rubbed it in, using it like a sponge to wick up the absurd amounts of moisture from between her sunnybuns.

"I said I was sorry." Cadance trailed off. The humidity was already getting to her. She had visited jungles less humid than this.

"I'm afraid a mere apology means nothing to us."

Luna nodded in agreement. "Actions speak louder than words, do they not?" She followed this thought by tilting her ass away from the chair and baking the cushions with a wet fart. So hot was this fart that all of the sweat that had seeped into the cushions dried up, only to be replaced moments later by a fresh batch. Of course, the last thing this room needed was more thick, moist air.

Cadance winced.

"You can start with this." Celestia lifted her own ass from its seat, plucking the now-soggy cushion from within her crack and levitating it towards the smaller princess. Steam poured over its surface.

"Sniff it." A wide, menacing grin crawled over her lips.

The sisters exploded with laughter.

Cruel, unforgiving laughter.

Cadance stared at the pillow hovering in mid-air. Liquid tickled from every inch of it, so much so that a puddle had already formed on the floor. The smell escaping from it was nauseatingly spicy. It reminded her of freshly-cut onions, but somehow made her want to cry even more than the real deal.

"I'd really rather not-"

SPLAT!

Celestia thrust the cushion forward into Cadance's face.

She stumbled around, but despite her best efforts the pillow remained firmly against her snout, wringing out moisture with every magical pulse from Celestia's horn. This hot, peppery moisture ran up her nose, instilling every part of her senses with the funk of sun-rump.

After an adequate time for Cadance to familiarize herself with the pungency of Celestia's ass crack, she pulled the pillow away. Behind it, Cadance was paralyzed with fear.

"Now, for the more exciting part of our little reprimand..."

Celestia rose to her hooves.

Before Cadance knew it, she was backed up against the glass wall—forced to stare directly into the center of Celestia’s bobbing, jiggling globes.

Even Luna could reluctantly admit her sister was better endowed than her. Celestia’s patootie was the kind an adolescent foal would have wet dreams about. Even with it poised before Cadance's face, with all its heady scents and humid warmth, she couldn't quite believe it was THAT big.

Celestia's ass dribbled hot, steamy mess. All Cadance could think as she glared in horror at those glistening globes was how awful it would feel to be wedged in there.

And as if able to read her mind, Celestia gave her hips one last wobble before throwing herself backwards upon the poor alicorn.

She slammed the wall with such an impact that Luna braced herself for a shatter of glass to follow. Thankfully, the glass was just about able to handle the tremendous weight of the fully-grown deity.

Celestia's mounds splayed across the solarium wall. Already a halo of foggy condensation had started to build around them.

From outside, one could see the royal rump smeared up against the pane of glass with a squished pink head lodged neatly in the center of it. Celestia dragged herself up the glass with a wet squeal, then back down again.

"Careful, sister." Luna concealed her smirk behind a hoof, "One fart and it shall break!"

"Well, let's just see about that shall we?" The sun princess bit her lip, eyes tightening, and let out a swift, rippling blast.

The glass rattled against the onslaught of royal wind, trembling with such ferocity that Luna could see the vibrations from across the conservatory. The patch of fog that had appeared around her buns soon spread, laced with trails of moisture.

Cadance, meanwhile, had her face right in the epicenter of the action. The rapid bubbles pounded her like a jackhammer. She almost hoped the glass WOULD smash so she could get some recess from the abominable smell of tea cakes and veggies coming out the other end.

Celestia's fart purred to a close after just ten seconds. Far too shabby for her liking, so after giving her fat gut a caress, she went in for another. Only... it didn't come at first.

"Hmph. This next one appears to be stuck. Oh, Lulu? Perhaps you could give my hoof a quick pull?"

She held it out enticingly.

Luna, of course, obliged without question, but not before pressing her other hoof against her snout in preparation.

Right from the outset this next fart was deafening, with the smooth surface of the glass only amplifying it.

The rough, snappy sound was akin to a million marbles rolling down a sheet of metal, but that sound was nothing compared to the smell.

Soupy fumes poured over Cadance's face, burrowed deep into her nostrils and filled her lungs whether she liked it or not. She could SMELL what Celestia had eaten for lunch earlier that day, and for breakfast, and even for dinner the evening prior. It was a fetid blend of various conflicting notes—some a bit more identifiable like rotten milk, but others so absolutely abhorrent that Cadance couldn't liken them to anything she'd smelled before.

Celestia's eyes fluttered, half shut, and even at twelve seconds the roar of her ass was going strong. Luna raised her eyebrows as it approached the twenty second mark, but before it could smash that particular record it tapered off like an untoned tuba.

Luna gave a quick applause, but it was clear she was experiencing her own deal of discomfort.

The menacing gurgle from the moon princess' gut drew Celestia's attention.

"Mmhph. Sister, must thou hath all the fun with her? Thou art not the only one plagued with foul winds, after all."

Nodding curtly, Celestia peeled her rump away from the glass, and turned around to make a shocking discovery: Cadance was still plastered to it, splayed out like a fly on a windshield, shuddering and slick with sweat.

"Oh, goodness! I really mashed her on well! Here..."

Magical light surrounded Cadence and carefully tore her from the glass, but there was no time for resting her pained lungs. Just a second later Celestia's thrust her over to the load-bearing chaise lounge, and wedged her snout neatly beneath the younger sister's moons.

Though not quite as big and beefy as Celestia's, Luna’s butt was still warm, sweaty, and oozed moisture on Cadance's face like a pair of fetid sponges.

"Oh, thank the stars..." Luna cocked a hind leg, letting out a squelching nostril-burner directly into the princess' prone nostrils. A wretched spice flooded her senses, earning a retch.

"Ahh! Gagging already, Tia. Methinks you might hath to up thy game."

Celestia pouted but watched on all the same. If Luna carried on like that much more she'd have to cut some loose into HER face before the afternoon was through.

The stench of Luna’s brew reached Celestia, who all of a sudden wasn't so surprised at Cadance's stark reaction.

"Eugh!" Celestia steadied herself against the wall of the solarium. "That is unspeakable, Luna!" She wafted the foulness back in her sister’s direction, who huffed down her own brand with a gleeful smirk.

"If thou must blame anypony, blame those Saddle Arabian delegates that visited last night. Their curries were oh so delicious going in, but nothing short of rotten coming out~"

With a tense of her entire body, Luna unleashed another short, squirting fart into the face of her pink seatcushion. Cadance's body convulsed as she was forcefed the fresh dose of Luna's cardamom-infused essence.

"My, Lulu, that one sounded rather damp, don't you think?"

Luna rolled onto her back, making sure to keep Cadance's muzzle stuffed firmly betwixt her cheeks. She laid a hoof on the back of her head, applying some pressure.

"Oh, it is this cursed sweat! If we never had another day as sultry as this I could die happy."

She punctuated this point by pushing harder, and assaulting Cadance with a far more violent offering. Thick gas escaped with the force of a mini hurricane and a vile spray of ass-juice to go with it. It sounded like a waterboarded walrus and smelled like rancid vindaloo. Cadance was clearly struggling to hold on as her body weakened against the blast.

Luna capped her watery windstorm off just shy of ten seconds, sighing and rubbing her wet crack into her captor's face. Cadance’s muzzle was soaked with sweat.

"Careful. We wouldn't want any accidents." Celestia giggled, and soon her younger sister joined in.

"Quite so. I would rather not repeat that one fateful carriage journey to Manehattan. They had to reupholster the entire chariot!"

As Cadance lay there, jammed into Luna's soggy moons, not only was she hit by the absolutely revolting nature of all their sights, sounds and smells, but also by the way these two sisters acted. To think that Equestria's rulers acted like gross, uncouth schoolfoals made her sick. She wouldn't believe it had she not been made to endure it for the past half hour.

"Alright. I think you've had your fun with her. Don't make me hold this next one in any longer." Celestia squirmed and crossed her hind legs. Her colon groaned.

"Why not come over here and join us?" Luna suggested. Cadance could tell by the wide smirk on Celestia's face that she was very keen on that idea.

She strode to the chaise lounge and Luna scooted over to make some extra space. Before Cadance knew it she had raunchy royal asses closing in on her from both sides. Leaning back, Luna squished Cadance's face into her older sister's divine mounds, as if using her ass merely to hold her there. If it weren't for the smell, and the greasy sweat, Cadance might even be able to say that Celestia's ass was comfortable. It had all the plush softness of a new couch, or a plump feather pillow, but listening to the sounds of Celestia's stomach stirring up its next batch made her anything but comfy.

Celestia's pucker surged against the side of Cadance's face and cracked off a meaty one, followed swiftly on the other side of her head by a wet, rasping fart from Luna. While this toot was still ongoing, Celestia came back with a much more powerful gust, roiling like a waterlogged trombone. The sisters carried on like this; a boisterous toot from Celestia's rump, then a whispering sloppy one from Luna. The two distinct brands of rectal perfume mingled in Caddy's smothered nostrils like a vile cocktail, while the two equally distinct tones blasted her ears in stereo.

While letting out their steady supply, both sisters ground their hips back and forth in a slow, teasing rhythm. It was quite remarkable that without a word they were able to coordinate their movements so well. Cadance's head was squeezed between Celestia's enormous cheeks, then passed back for a quick soak in Luna's crack. Each time she was traded from ass to ass, Cadance had a hot, fresh fart waiting there to greet her nostrils. Attempts were made to push herself away with her hooves, but they only sunk into the cushy layers of fat on both ponies’ buns. Just as she was hoping it couldn't get worse, Luna and Celestia hurried their pace.

Now, they were not tenderly massaging Cadance between their sordid sandwich of buttflesh, but slapping her back and forth, pushing in all their weight so hard she felt her head would pop.

"Nhhf. Oh, she'd make such a good throne..." Celestia cooed, ass letting off a raunchy roar that caught Cadance in the eye.

"Well said, sister! We are most impressed that she's still, hrrgh-"

fllrrppt!

"-conscious after all of this!"

Both backsides parted, giving Cadance a sweet moment of respite, before slamming back together with a heavy, wet thud. The princesses moaned in gluttonous pleasure, gas whining through their puckered holes as they continued to toss Cadance back and forth, back and forth—it seemed like it went on for hours before they finally set her free. She tumbled off the couch into a pitiful heap on the floor.

That had to be the last of it, surely? What more could they possibly do to humiliate and disgust her?

Right on cue to answer Cadance's question, a crisp belch growled through Celestia's closed lips, making them flutter-

Hluuuuuurp!

"Ooh! Excuse me! It seems all that air is escaping from both exits."

The sisters giggled, and Luna, not one to be out-grossed by her sister, followed up with a burp of her own. It was deep and resonant, like her royal canterlot voice, and lingered just as long.

"That one was lovely, Lulu, but I think I can do better, let's see now..."

Circling her belly with a hoof, Celestia coaxed another rippling rocket of air from her throat. This time she sustained it a while longer, letting it rise in pitch before ending in a shower of slaver and a smack of her lips.

Cadance, denied even a moment's rest, was once again shrouded in magic and lifted from the floor. She was far too frail to stand by herself, so Celestia kept her hovering as she brought her close to her face.

Cadance opened her eyes, only for them to be forced shut again by a bellowing hurricane of a belch. Saliva flung over her face, along with the dreadful smell of Celestia's raw gut. Overall, it was more tolerable than her farts, but still wrought with lingering tones of mushroom pate and garlicky vinegar.

"Hmm. Not bad, a bit short."

Unsure if burp-rag was a rung lower or higher than fartrag, Cadance trembled as another eructation surged over her face. This one was low, gravelly, almost terrifying in its bombast, and stunk of stale quiche to boot.

"Luna's turn!"

Celestia thrust Cadance over to her sister, who was ready with a belch of her own. The throat-rattler raged on for several seconds, not quite as loud as Celestia's but about three times as damp. Cadance could see Luna's throat wobbling and rippling as it passed the rotten air. The various smells of Luna's stomach overcame her, giving her a chance to note that Luna had eaten chocolate at some point in the last day.

When Cadance next opened her eyes, rather than Luna's open mouth, there was Luna's plot to greet her.

She spread her cheek, revealing the dark donut nestled within, and brought herself back onto Cadance's face, carefully aligning her anus with the alicorn's snout.

"Say, can'st thou open her lips with that spell?"

"Urrrrrrrph~, ahh! Certainly." Celestia swirled the taste of her own stomach around in her mouth as her horn's thrum raised a semitone.

Cadance tried to clamp her jaw shut but it was no use. The will of magic was far stronger than her own, prying her mouth open as wide as it would go. Luna rested herself back, fat ponut disappearing between the slender lips of her victim. Her blubbery blueberry cheeks enveloped Cadance's head.

"Mmm. Nice and comfy. Would'st thou like a breathmint, Cadance? Thou could surely use one!"

Cadance was just getting used to the zesty sweat dripping from Luna's asshole when it spread open and flooded her cheeks with a thick, hissing gust. Quiet but powerful, it didn't just stop at her mouth, barrelling down her throat then backing up out of her nose. Cadance's tastebuds went entirely numb as Luna's gale flushed every available passage. Soon it went from a silent whoosh to a hollow, muffled purr. Cadance made a feeble attempt to close off her throat, only increasing the pitch of Luna's fatal backblast. Celestia couldn't help but giggle at the noticeable change in sound. Cadance tried to call out "stop" to the sisters, but her vocal cords instead carved the word using the snarl of Luna's flatulence. Celestia laughed hard enough to pound the sofa with a deep toot.

After a few more moments the torture came to an end, and Cadance was mercifully freed from Luna's backside. The gas had tainted not just her throat, but her nasal passage, clearing her sinuses and leaving two slimy strings of snot dangling from her nostrils. All she could taste, smell, and think was Luna's torturous curry farts. A sickening mist seeped through her open mouth.

"Have we lectured her enough?" Luna grinned and wafted her own stink away from her face. It was starting to overpower even her.

"Perhaps..." Celestia began, "But I really want dear Cadance here to understand we're being serious."

She flipped the alicorn around to make eye contact.

“I want you to realize that this can, and will, happen again if need be. Me and Luna command a certain level of respect, and we can’t afford to have so-called new royalty like yourself tarnish that. I don’t care that your husband is employed in my royal guard, nor that your sister in law is my star student. If you ever undermine my or Luna’s authority again, we shall not hesitate to give you another taste of our divine anger. You can consider today a mere sampler. I can assure you that next time your punishment shall not cease so soon. We will punish you for days… weeks… months, even.”

A wry smile undercut the serious tone. Cadance wanted to say “I’m sorry”, but all that her damaged lungs could achieve was a whimpering groan. Celestia cut a belch into her face to further humiliate her.

“I am not so sure.” Luna cooed, “Now that we think about it, there seems still to be but a shred of resistance in her.”

“I think you might be right, Lulu. There’s only one thing for it!”

Celestia’s magic vanished.

Cadance plummeted to the floor on her back. The impact bruised her, but there was no time for thinking about such things as Celestia’s wonderfully plump derriere came into view above her. A few pearls of sweat dripped onto her astonished face.

“I would take a deep breath if I were you. You’re going to need it.”

This was the only warning Cadance received before Celestia’s legs gave way and the royal plot dropped down onto her head.

One moment she could see burnt sunlight spilling in through the solarium walls, illuminating every glistening bead of sweat on Celestia’s flanks, and the next, there was only darkness.

Cadance immediately started flailing. She twisted her body, smacked her hooves against Celestia’s ass, and even tried to extend her wings, but all of it was fruitless. The princess had to weight at least four hundred pounds, and every ounce of that was pressing down onto her body.

Even with magic the weight was too much for her to even think about fighting against.

Like an ant under the thumb of a giant, she was trapped.

She gave up on trying to squirm free, instead conserving her energy as it became immediately apparent to her that she couldn’t breathe.

“Ooh, she’s a fighter after all! I think somepony owes me a bottle of champagne and a wing-rub.” Celestia goaded to her sister, who rolled her eyes in protest.

“Pfft! She surrendered after a second, I count that not!”

“If you’ll remember, you bet that she’d lie there and take it. Stop fussing and admit you lost.”

“Alright, very well.”

From outside of Cadance’s airless prison, she was almost entirely hidden from sight. Celestia’s haunches entombed her entire body, from head to belly. Only her tail and hooves were visible, poking out from beneath the press of fat. Twitching slightly.

Watching the show from a relaxed position on the couch, Luna cleared her throat.

“Did thy posterior always… consume them so? Take this in stride, dear Tia, but perhaps it’s about time thou went on that diet.”

“Oh, nonsense! If it weren’t so... ahem... plentiful, this wouldn't be nearly as much fun!”

Through all of this bickering Cadance was starting to realize the urgency of her situation. Celestia wasn’t farting at least (though she could still hear her innards working into a frenzy the entire time, guaranteeing that if she ever did take a breath again it would be from an entirely different air supply), but there was effectively a warm, sweaty pillow smothering her face. No airflow. No room to move her head. Before long she realized how much she needed to breathe. She opened her mouth, but only fur and fat poured in.

Celestia didn’t move an inch, even as Cadance’s concern started to blossom into panic.

This wasn’t just a playful little stew under the royal ass, she was going to suffocate her!

Cadance let out a muffled cry, her voice cracking. Celestia only smirked.

Her heart was beating like an overzealous bass drum. She could feel her heartbeat in her skull.Her head started to swim, already growing faint. She NEEDED to breathe. This was no longer a game.

She jolted, struggling again like a fish out of water. The sudden fight for her life was barely a conscious decision. Her body spazzed out in a primal vow for freedom, but that only sapped her energy faster.

“Mmmphh! Mmmmrrmmphh!!”

“You can’t breathe? Aww, I’m sure you’re just not trying hard enough! Come on, now, Cadance, open that mouth and take a nice, deep breath! Really fill those lungs!” To demonstrate (and utterly torment her victim) Celestia then took a series of slow, full breaths. Luna joined her, both sisters breathing fetid air into their lungs and then expelling it with peaceful sighs. The sound of breathing was enough to bring tears to Cadance’s eyes.

Primal impulses started to take over. With a strength she didn’t even know she possessed, Cadance wrestled for her freedom one violent convulsion at a time. A lump was fully formed in her throat and sweat poured all over her face. Only… she soon realized most of that sweat hadn’t even come from her.

With how sultry the greenhouse was, Celestia’s ass was already dribbling. Cadance’s head was steamed underneath this fresh sweat, making the experience even more anguishing than it already was.

But sweat didn’t matter. Cadance would breathe in Celestia’s ass sweat for the next hundred moons if it meant some form of air.

Her lungs were burning; begging. This was truly it. Celestia didn’t show any sign of remorse. Cadance could feel herself on the edge. Suddenly it felt like she was underwater, as all of her senses slowed to a crawl. Tingles danced along her numbed body, her limbs. This was almost like falling asleep, but more painful. More terminal.

Celestia could feel Cadance’s struggles lapsing, but this only inspired her to bear down harder. She could feel the alicorn’s limbs wind down to pathetic twitches. The movements came sporadically. Cadance could barely manage to move her lips now. Those movements became slower, lazier, almost completely gone.

Right as the princess was mere seconds from perishing, Celestia finally shifted her rear. She didn’t lift it up, though, instead swivelling it sideways and relocating Cadance’s snout into the sopping-wet crevice of her ass.

The instant that Celestia felt Cadance’s muzzle making contact with her pucker, she pressed down on the princess and unleashed a violent gush of muggy flatus right into her face.

Cadance huffed it down desperately. It was scarcely a substitute for oxygen, but it was something.

She breathed and breathed the unfiltered stench until there was none left, at which point Celestia finally rose back to her hooves. Fire burned in her lungs, but the paltry amounts of oxygen in the fart were just enough to save her from death.

Crashing into her vision, the light from the sun nearly blinded her. She rolled around, spluttering; gasping down the largest breaths she could. Her eyes were bloodshot and her face matted with sweat. Those first few breaths were agonizingly forced, like the wheeze of a pony waking from a dreadful nightmare.

The alicorn's once pink coat was now a sickening shade of mustard yellow. The sisters had not merely peppered her with their wretched reek; they had bleached her with it.

"Now, it would be rude to keep our guests waiting."

"Quite right." Luna concurred, "Cadance, thou shalt bring the guests their next meal. Hurry, we wouldn't want to offend them."

There came another wicked giggle from Luna and Celestia. Cadance didn't even bother trying to dispute their command. All of her energy was gone. She knew now that even breathing the sweaty, fart-deluged air in this solarium was a gift that she did not deserve. The near-death experience had changed her.

"Well?" Celestia nudged Cadance.

"Y-Yes, princesses." She gagged. The sisters smiled at one another, quite content with the fruits of their little tootoring session.

"Don't know about you, Tia, but methinks we are in need of a nice long shower."

"What a wonderful idea. I think I shall join you!"

"There won't be enough soap in all of Equestria to cover thy reek, sister. Thou smelleth worse than a Diamond Dog's balls!" Luna cackled at her crude comment.

"Is that so? Well YOU smell like the fart of a Timberwolf!"

"Fie! Thy crack could make a cockroach curl up and die!"

"And your burps would make a dragon weep!"

The two sisters continued on like this as they sauntered out of the conservatory, bumping rumps together on their way.

Cadance forced herself to her hooves and stumbled in the direction of the dining hall. Before all of this the thought of entertaining such esteemed guests while stinking like a sack of Cerbarus dung might have appalled Cadance. Now, she was simply too afraid of what the princesses might do to her if she disobeyed to care.

Cadance’s cologne of sweat, farts and royal burps was so vile that none of the dinner guests made any attempt to conceal their disgust. Never before had their cultivated nostrils met such horror.

They said nothing. After all, Cadance was still an alicorn despite her dreadful appearance, but Celestia and Luna would find this was the last time any of the luminaries or nobles would visit the castle. For many decades to come, they would tell stories about the dirty pink alicorn that smelled like death itself and almost collapsed several times as she shuffled from end to end of their table. Likewise, Cadance would never forget the events that unfurled that day. It could not be denied that she had learned a very important lesson: do not fuck with the royal sisters.