Full Moon in the Afternoon

by Liquid Savage

Rating: teen
Tags: Pinkie Pie, Sex, Princess Celestia, Slice of Life, Princess Luna, My Little Pony: Friendship is Magic, Comedy
Length: 5768

Princess Luna's sweet tooth meets Pinkie Pie's new sweet concoction... (Weight Gain)

Princess Luna has a slow morning, which has her come in contact with a new cupcake concoction, made by no other than Pinkie Pie herself.

Of course, she has to have some more, and the Princess of the Night almost always gets what she wants...

Another WG story I did a while ago, this time of everyone's favourite moonbutt.

Published 2016-09-22 04:30:01 UTC
Last updated 2016-09-22 04:30:01 UTC

Haha! The gut has been doubled!

Princess Luna sulked as she laid around on her bed. The curtains were closed, blocking all sunlight into the bedroom; dark as if it was always midnight.

The Princess of the Night was undeniably bored. It was late morning, and so her older sister Princess Celestia, raiser of the sun and ruler of Equestria, had the reigns till sundown. Which was a whole day away.
And until then, Luna had absolutely nothing to do. No dreams to walk in; none of her video games appealed to her right now, not even the new ones; and since spring had come, the hot weather was starting to arrive with it, so she felt rather lethargic in the heat instead of the refreshing cool of nighttime.

She couldn’t take this boredom much longer. She needed something to do, and she needed it now.

A quiet growl emanated from the svelte alicorn’s stomach, indicating hunger. She just realised she’d not had any breakfast yet.
That could be something to do, she supposed.

With a set goal at last, she rolled upright and hopped off the bed, easily making her way around the dark room. Being the night princess, she obviously had better sight in the dark than the average pony, so looking at herself in the mirror was no challenge.
She was never one to worry too much about appearances, especially since her flowing dark blue mane, twinkling with stars like the night sky, was always in the same style. She simply used her magic to levitate her black tiara and pendant over to dress herself, followed by her lavender shoes.

With another yawn, she stepped outside her bedroom, squinting at the bright light in the hallway. Being the night walker she is, she wasn’t that fond of daylight, not that it hurt her in any way.
With hunger still on her mind, she walked down the hall toward the kitchen, greeting and nodding to any guards and staff passing her by.

She pushed through the door to the dining hall; a large room with an incredibly long banquet table, with double-doors to the side leading to the kitchen, and large windows giving a good view of the castle grounds, as well as the town of Canterlot beyond it.
Luna could sit at the table and wait for somepony to notice and take her order for breakfast, but she didn’t feel like waiting, and she felt like taking initiative.

So she simply headed through the double-doors, startling the unicorns inside, all clad in white aprons and those cute little puffy hats chefs wear. Some of them were half way in removing their uniforms, but quickly did them back up upon their ruler’s arrival.

“Oh, Princess Luna,” a mare spoke up, wearing a nervous smile, “we weren’t told about an inspection!”
“Inspection?” Luna repeated, then shook her head with a smile, “Nay, we are simply in search of sustenance.” The princess’s use of the Olde Canterlot Voice made her a bit of an oddball, but her subjects loved her all the same.
“Oh, well if you’d take a seat outside,” the mare explained, pointing a hoof toward the double-doors, “we’d be happy to make you breakfast.”
“That shan’t be necessary,” Luna replied, strutting toward the tall refrigerator, “we are a grown mare, so we may feed ourselves, yes?” She looked back at them with a warm smile. “And we realise that you are finishing for the morning, so continue to do so, pay us no mind.”

“Well, there’s a tray of cupcakes in there,” a stallion spoke up, pointing toward the very same fridge, “somepony named Pinkie Pie left them for you and Princess Celestia, though it might not be a suitable breakfast…”
The alicorn blinked in thought, recognising the name and automatically picturing the hyperactive pink earth pony in her head. She then grinned back at the stallion. “Actually, that would suit us just fine, for the moment!”

She magically opened the fridge door, and like he’d said, a tray of pink frosted cupcakes sat on the shelf eye-level to her. Thirteen of them, to be exact. Each one was cutely topped with delightfully coloured sprinkles, reminiscent of that very earth pony in charge of creating them.

“Hm, a baker’s dozen,” Luna mused to herself.
“Could I get you a plate, Princess?” The mare from before asked, still sticking around after her coworkers had quietly left the kitchen.
“Oh, that shan’t be needed,” she shook her head, smiling down to the little chef, “we can use the tray just fine, but our thanks regardless. Be off on thy break, now.”

The mare nodded and departed with a bow of her head, leaving Luna alone with this tray of cupcakes. A mischievous smirk crossed her face as she looked at them.
“We shall have much fun with you all,” she giggled.

The princess trotted back to her bedroom, tray of cupcakes levitating in her magic, none of the castle staff daring to question why she looked so happy, and she calmly shut the door before hopping onto her bed with the treats.
She focused her magic on one of the treats, popping a single bite into her mouth.

Her eyes widened as a barrage of flavour went off in her mouth, the sweet baked goodness of the cupcake filling her whole body with a foal-like giddiness. She greedily devoured the rest of the treat, moaning happily and licking her lips.

And then another found its way into her mouth, and another, and another!

Before she knew it, Luna had finished off the entire platter of cupcakes, and she was laying on her back licking frosting off her lips.
“We can safely say that these are the best treats we have ever had!” She giggled to herself, wings fluttering giddily.

However, a nagging urge sprouted in the back of her mind. An urge for more cupcakes. But not just any cupcakes; these exact ones. The ones from that Pinkie Pie mare. They were the most delicious thing she’d ever had, and she felt far from full.

But wait, there were none left in the kitchen, were there? Those were all the delicious cupcakes in the whole castle. That very thought brought her mood right down.

...unless…

The dark alicorn rolled herself upright, and walked back out to the hallway...seemingly unaware of the slight distention around her stomach that wasn’t exactly fullness.

She waved over one of the white pegasus guards, who flew over dutifully.

“Yes, Princess?” He called.
“Get our chariot ready, would thou please?” Luna requested with a smile, “We must take a trip to Ponyville.”

The dark chariot, pulled by creepy batponies clad in purple armour, touched down in the Ponyville square on the sunny afternoon. There was a time where this chariot, dark as night and just as scary, would strike fear into the hearts of the Equestrian subjects, but the citizens’ fearful cowers were replaced by respectful bows as its rider strode onto the dirt road.

Princess Luna, clad in a dark purple cloak, smiled to the smaller ponies as she sauntered toward Sugarcube Corner, the famous bakery delightfully appearing like a house-sized dessert, much like that gingerbread house in the foals’ bedtime story.

The second the cute little bell rang as she entered the door, the alicorn suddenly had a pair of energetic, bright blue eyes right in her face.

“Hi there Princess Luna!” The voice of Pinkie Pie squeaked excitedly, in her trademark lightning-fast delivery, “Thanks for coming! I got loads of really princess-y things! I mean so many princess-y things! Well I mean they’re for everypony but that means they’re for princesses too so they’re still princess-y things right?! So you and Princess Celestia can have some! Oh and Twilight because she’s a princess too now. Oh and Princess Cadance too! But she isn’t around that often but-”

“PINKIE PIE.” Luna bellowed, in the echoing Royal Canterlot Voice, causing the mare in question to freeze in place, wide smile still unwavering. The princess cleared her throat and continued, in her normal, soft tone, “We would like to ask about those cupcakes thou had given to us recently.”

“By ‘us’ do you mean you and Celestia or just you?” Pinkie inquired, and continued without even taking a breath, “Or do you mean the whole castle? Or you and the whole castle? Or you and Celestia and the whole castle? Or some of the castle? Or-”
Pinkie’s motor mouth was swiftly met by a royal hoof stuffed into it to stop her chattering.

Luna blinked, before removing her hoof and answering with a smile, “Yes.”

“Great! I used a few new ingredients for that batch!” The earth mare explained, reaching into her wild curly mane and pulling out a notebook and pencil before donning a rather stern expression. “Now tell me, how was your snacking experience?”

“Um, rather delightful,” Luna nodded with an awkward smile, still not that used to this pony’s eccentricity as she nodded and wrote down what she assumed was words. With her hoof, somehow.
Luna blinked as she realised something Pinkie had said. “Um, pray tell, what were these ‘new ingredients’?” She asked curiously.

“I can’t tell anypony that!” Pinkie grinned, stuffing the notepad and pencil back in her mane and leaning in close to whisper, “It’s a trade secret…!”
“Um, of course,” the alicorn nodded, deciding just not to try and question this mare, and then regained her regal composure with a puffed-out chest, “In any case, we would like to request another delivery of those cupcakes.”

“Another delivery?!” Pinkie gasped, hopping in place with excitement, “Alright! How many batches are ya wantin’?”
Luna gave a smirk. “As many as thou can produce!”
Another gasp emerged from the earth mare, this one more out of shock. “I dunno, that’s a tall order for such a short amount of time…”

“There is no deadline,” the princess assured her, though she was positive she never mentioned such a thing, “simply have them delivered to us when thou art ready. We shall pay for any expenses.”

“By ‘we’ do you mean you? Or Celestia and you? Or-”

“YES.”

“Alrighty, you got it Princess!” Pinkie smirked, giving Luna a salute before hopping over the counter, “They’ll be ready for ya in no time!” And with that, she disappeared into the back.

Luna’s smile quickly deflated as soon as the mare left, letting out a quiet sigh of relief. As nice as Pinkie Pie was, her incessant talking could easily wear on somepony’s nerves.

However, her order was set, and she left the bakery in high spirits, smiling and waving to her subjects as she passed them back to her chariot.

Back at Canterlot, Princess Luna stretched and relaxed on her bed, enjoying a magazine and a mug of hot chocolate. It was past the appropriate season for such a drink, but it was not exactly illegal to have a hot chocolate outside of winter. Besides, she preferred it over the tea her older sister usually drank.

A knock on the bedroom door perked up her ears, and took her attention away from her read. “Yes?”
A guard entered the room, bowing his head. “Beg your pardon, Princess, but a delivery has arrived for you.”
“A delivery?” She repeated, levitating her mug to the bedside table before hopping onto her hooves, “From whom?”
“The label said ‘Sugarcube Corner’, Your Majesty.”

The princess blinked with shock, totally unable to believe what the guard had just told her.
“Sugarcube Corner?” She repeated, cocking her head to the side, “thou art certain?”
“One hundred percent,” the pegasus nodded, and stood aside from the door, “you may see for yourself.”
“That we shall,” the alicorn nodded sternly, strutting out into the hall with the guard dutifully walking alongside.

Once the two arrived at the castle entrance hall, Luna could not believe her eyes. Smack dab in the middle of the room sat a large crate; reaching up to Luna’s chest and just as big around, painted in bright pink with a large blue ribbon going along each side, meeting at the top in a matching bow. The guards looked just as mindblown as she was!
The alicorn spread her wings, taking the guard by surprise, and swooped down to read the address label. Indeed, it was addressed to her, and it came from Sugarcube Corner.

The princess stared in wide-eyed astoundment. How in Equestria did that pony manage to bake so much so soon? She had only been back at the castle for half an hour!

Once the delivery papers were signed and the mail ponies were on their way, the guard from before approached his leader.
“What would you like done with this, Princess?” He asked.

As shocked as Luna was, and how much she couldn’t believe it, this huge shipment was already here, and she knew what was inside. She quickly caught herself drooling and swallowed it down before clearing her throat.

“Have it brought to our chambers,” she ordered, regaining her regal composure and pointing toward the stairs, “we shall deal with this personally.”

The guards nodded and four of them approached the crate, taking a corner each. A fifth supported the centre beneath. Luna hovered up into the air and led the guards to her bedroom, where with a little bit of magic, the crate was squeezed into the room, barely fitting in the space between the bed and the door.

“Thank you, you may leave us,” Luna nodded, and the guards bowed their heads before leaving the room single-file.

The second the door closed, the alicorn’s regal presence was replaced with a giddy squeal of delight and hopping on her hooves like she was desperate for the bathroom. She hovered up to the box’s lid and magically pried it off, revealing piles upon piles of cardboard packages containing those very cupcakes she had waited nearly an hour for!

Excited, she grabbed one of them in her magic and floated onto her bed, rolling onto her back and pulling open the small cardboard flap. A single cupcake slid out in her magical grip, and she took a large bite of the frosted top.
Once again, her taste buds exploded with the taste of sugary frosting and batter, and she hummed with sheer delight before swallowing and devouring the rest of the treat.

Then came another. And then another, and another, and another…

...Until the entire package was finished, and Luna huffed grumpily as she dumped the empty on her bed.
“If only we had...some more…” she paused, as she’d just remembered something when she eyed up the large crate across the bed. “Wait, we do have some more!” She squealed.

Wasting no time, she levitated another package over to her...along with a dozen more, to be on the safe side.

A week or so later…

“Two hundred thirty?!” Luna gasped, staring at the digital numbers on the screen connected to the weighing scale in princess’s adjoining bathroom.

“That cannot be correct,” she growled, batting the screen with a hoof, “this device must be malfunctioning!”

However, it was no malfunction; Luna had indeed gained a considerate amount of weight in a week’s time. Her stomach hung lower between her knees, sticking out from the sides like a large dark blueberry. Her legs had grown thicker, and were squishing into her stomach rather cutely. Her flanks had also expanded, growing much rounder and enlarging the crescent moon cutie marks on them.
She stepped off the scales and walked, or rather waddled, to the mirror to look at the damage. Her face was much chubbier, with adorable round cheeks threatening to invade her peripheral vision if she expanded even more. A slab of double-chin hung below her jaw. Her lavender nightdress looked, and felt, much tighter on her larger form.

“Just a few pounds, that is all,” she huffed, pushing a hoof into her stomach and watching it squish in a good bit, sending a ripple of flab, “though, we do wonder how we managed to gain so much in so little time…?”

And it dawned on her. The cupcakes. The ones she had binge-eaten all week long. She waddled back into her room and looked at the crate, which was only filled with empty packages as opposed to the delicious...sugary...irresistable delights they once contained…

The adipose-ridden alicorn shook her head, dispelling the thoughts. Such words were what caused her to eat almost nothing but desserts all week!

Her next step caused a crunching noise, and she looked down to see an empty cupcake holder under her hoof, crushed by its sheer weight.
Curious, she levitated the light blue paper up, and spotted the slightest drop of frosting on the centre. She blinked at it, a temptation beginning to well up inside her.

Did she dare?

…”Mlum,” she hummed, licking at the paper. She did dare.

She blinked slowly, and the urge for sugary treats returned, just like that. Licking and smacking her lips, she felt a return trip to Ponyville was in order.
However, to make such a long journey just to request more cupcakes? It sounded rather...inconvenient.

But wait, she had servants!

She called for one, and a pegasus clad in gold armour entered the room, getting a good view of his ruler’s side.

“Um, you called, Your Majesty?” He muttered, trying to keep eye contact with her, though he couldn’t help but make constant looks toward her plentiful plot.
“We wish to have a delivery made,” Luna began, still licking her lips for the sweet sugary taste, “have some guards travel to Sugarcube Corner in Ponyville, and ask the one named Pinkie Pie to send another delivery to cupcakes to us.”
The guard blinked. “Would ‘us’ mean you? Or-” Her unamused scowl shut him right up. “U-understood, Princess!”

The pegasus dashed right out the door, leaving Luna to herself once again. It would take quite a while for those cupcakes to arrive, and that delicious taste of frosting got her stomach growling.

“Perhaps a proper breakfast is in order,” she thought out loud, “before a nice snack break!”

And with that, changing from her nightdress to her collar, tiara and shoes, she strutted out into the hall, trying to carry her regal presence along with all that new cellulite. She looked much like a ballooned version of her usual self.
Her new look was certainly leaving an impression with the castle staff, as many of them gave her, or more specifically her flank, a second glance as she passed them by.

Finally arriving at the dining hall, her walk taking much longer than usual, she pushed through the doors, and spotted a tall, slender alicorn, coat white as the purest snow, and her flowing mane and tail twinkling like rainbows. She was Princess Celestia, guardian of the sun, co-ruler of Equestria, and Luna’s older sister. She sat on the opposite side of the table from Luna entering, enjoying a dainty cup of tea and a piece of toast.

“Good morning, sister,” She smiled warmly, as the blueberry of an alicorn dropped her round rump on a chair with a small thud, “If I may say, you seem to really be enjoying those desserts!”
“Yes, we are certainly enjoying those little confections,” Luna grinned, cheeks dimpling, still on a little high from that frosting, “We plan to receive another delivery in the afternoon.”
“I’m sure you do,” Celestia chuckled lightheartedly, taking a final sip of her morning tea before getting up, “I have a few errands to do around the castle, I’ll see you around.”

Celestia definitely wanted to make a harmless jab regarding her big little sister, but perhaps it could wait until a little longer; the way she was eating and ballooning, she’d be the moon itself in no time!

Once the snow-white princess had departed, a mare wearing a cute little waitress outfit emerged from the double doors leading to the kitchen. Swift Service was her name, and her name did not lie; she was often considered the best waitress in Canterlot, which got her a part-time job at the castle itself! After being here a while, she’d grown used to the princesses, and her nerves had calmed by now.

“Good morning, Princess,” she greeted with a wide smile, “may I get you some breakfast?”
“Thou may, yes,” Luna nodded, glancing up in thought, “We would like... a small stack of toast, some pancakes with a lot of that lovely syrup, some of those delightful little ‘poptarts’ that are big in Equestria right now, some waffles...oh, and some orange juice!”

The little unicorn nodded as she took the order, using her magic to write in the notepad, “and how much of each would you like?”
Luna smirked at her. “As much as the chefs can make!”
“Oh my,” the waitress gasped, blinking down at this already huge list of orders before jotting down ‘x as much as we have’ beside each one, “R-right away!”

As her little servant dashed off to the kitchen, Luna gave her grumbling stomach a loving rub, smiling down to it as she thought of the delicious, and most likely fattening breakfast she was about to receive.

And she was not disappointed. Within a span of ten minutes or so, Swift Service returned, with all the chefs in the kitchen in tow. Each of them carried a piece of their ruler’s excessive meal, and placed it in front of her in a sort of semi-circle.
The princess let out a wide, cheek-dimpling grin at the feast, trying her best not to slobber all over herself.

She cleared her throat and regained her regal composure. “Thank you, that will be all for now.”
The chefs and waitress bowed their heads and returned into the kitchen, Luna not even waiting for them to leave as she immediately got stuck in to her breakfast.

The pancakes were practically drenched in syrup, and burst with flavour as she chewed into them. She even took a few from the stack and chomped into them all at once.
A small stack of toast, to her right now, was contrived of nearly two or three baker’s dozens of it, and that’s exactly what she got; each slice all lathered in butter with little tubs of spread to go with them. She didn’t even bother with them, and simply used her magic to lift multiple slices of golden brown toast to her muzzle and crunch into them. Though she did open the spreadings to lick them up. The waffles were nicely stuffed, much like their devourer.
The poptarts were delightfully sugary, which simply reminded her of the huge feast of cupcakes she was going to have the second they arrived.

She ate voraciously, as if she had been starved for weeks, and a couple of the chefs watched with awe, and with reddened faces, as their princess’s pudgy frame bloated from being stuffed with sugary and greasy delights. Her mouth and the top of her belly were being dirtied with sugar, grease and crumbs, but she did not care one bit. Not right now.
Right now was breakfast time.

Half an hour had passed, and Princess Luna, rather slowly and drunkenly, waddled her bloated frame back to her bedroom. That was the most exquisite breakfast she had ever had in her life, and she was definitely going to have some more in the future.

But for now, it was time to rest. All this food was weighing her down, and she felt rather lethargic and drowsy from her binge. Besides, a quick wash was in order for her face. Once again, she was oblivious to the castle staff’s stares as she waddled by; some in shock, others in confusion, and the rest with arousal.

She finally reached her quarters, and lumbered to the bathroom where she had a quick wash of her face and stuffed middle. Nice and clean again.
A sigh of relief escaped her lips as she collapsed on her bed, yawning and wriggling in comfort before she was out like a light.

A lovely dream filled her head; a Ponyville where the buildings were made of the richest cakes, the roads of the sweetest chocolate, and the rainclouds were large floating globs of cotton candy which rained chocolate drops. Much like when Discord had control of Equestria, but it tasted so much sweeter.
She bit and chewed into everything she could find, ballooning with every gulp. And she ate, and grew, and ate, and ate, and grew, and grew…

A sharp knock sent her hurdling into consciousness, and she found herself back in her bedroom.
Rather grumpy from having her literal sweet dream interrupted, she rolled herself into a sitting position and barked, “Who is it?”
A pegasus guard meekly poked his head inside. “Princess Luna? A large package has arrived for you.”
“From Sugarcube Corner?” She squeaked, her bad mood instantly taking a turn for the better.
“Um, yes,” he nodded, “how did you know?”
“We were expecting it,” she smirked, “have it brought to our chambers~”

It wasn’t long before the large box arrived, and was sitting in Luna’s bedroom once again. She hadn’t noticed that the old one had been disposed of while she was eating breakfast. Or was she sleeping when it happened?
It didn’t matter, she had her new delivery! And it looked even bigger than the last one!

She giggled and cracked it open with her magic, pulling out a baker’s dozen of cupcake packages and tearing them all open.
“Haha! The lunch has been doubled!” She squeaked.

A few more weeks had passed since Luna had last used her scales, and on a whim, she stepped on one morning.
And nearly jumped out of her coat at the results.

“F-four hundred and sixty five?!” She yelped the numbers on the display, with enough shock to stumble off the scales and onto her rump.

In perfect view of the mirror to see herself.

That perfect svelte figure Luna once had could not be further gone. She could be better described as a dark blue ball on legs. Her stomach was a perfectly round sphere that hung inches from the floor, and swung like a pendulum with every lumbering step she took. Her legs were becoming closer to tree trunks, with even her hooves thickening up.
Her flanks were now huge dark slabs of flesh and fur, the crescent moons looking much thicker from being stretched out. Her large flanks meant she was given a rather generous plot, which quivered and jiggled with the slightest movement.
Her face looked practically inflated, with a pair of cheeks like a squirrel’s when it was storing its food. The slab of fat beneath her chin had gotten even larger, and a second was beginning to form beneath it.

“My stars,” she grunted, the large accumulation of flab around her neck causing her voice to deepen, “We did not think, we would get so large…”

With some considerable effort, she rolled herself onto her hooves, and started an awkward waddle back into her bedroom. The emptied crate of Pinkie Pie’s cupcakes loomed over her, almost taunting her for being so big. That they had gotten her so big.

She swore that if they didn’t taste so delicious...and sweet...and irresistible…

“No!” She barked, shaking her head to dispel such thoughts, “We shall not fall for your charm again, foul confections!”
A loud, demanding grumble from her spherical stomach said otherwise.
“Hush, you,” she scolded, patting her side and sending a small ripple through her flab, “thou hath been fed enough!”

A knock came at her door, followed by the head of a pegasus guard poking in through the crack.
“Pardon me, your highness,” he began, rather meekly as he was getting a perfect view of the alicorn’s blubbery behind.
The princess in question slowly turned herself around to face him properly. “Yes?”
“Princess Celestia wishes to speak with you,” he informed, “over breakfast.”

Luna blinked. The last thing she needed right now was breakfast. But once again, her stomach said otherwise.
“Tell her we shall speak to her later,” she replied, rubbing her stomach with a hoof.
“She insists it’s urgent,” the guard argued, eyes darting around awkwardly, “she says it’s now or never.”

The dark princess snorted with agitation. Once more her stomach urged her to feed it, and this time she gave in.
“Very well,” she nodded, “we shall meet with her presently.”
The guard nodded and took his leave, while Luna slowly followed, already beginning to fantasize about the breakfast she’d have.

Luna arrived at the dining room shocked, and rather exhausted. Sitting on the table was her new favourite breakfast of pancakes, waffles, poptarts and toast, in tall stacks surrounding a big cheese omelette, all ready and waiting to be eaten.
She instinctively waddled over and took a seat in front of the omelette, her plentiful plot taking up two chairs and yet still sagging over the sides.

Across the table from her was Celestia, with her usual dainty slice of toast and a cup of morning tea.
“Good morning, sister,” she greeted, a knowing grin on her face.
“Yes, good morning,” Luna grunted, slurping the drool off her mouth as she tried to decide where to start. She figured the omelette, which was still nice and warm, but not burning hot.

The snow-white alicorn’s grin turned into an almost mischievous smirk. “So, sister, I’ve noticed you have developed quite a sweet tooth, lately.”
Luna was far too busy eating to listen, but she could register that she was being talked to while slurping melted cheese into her mouth. “Uh-huh.”

“And it seems to come from those cupcakes you constantly order.”
“Uh-huh, indeed.” A small stack of toast was next.
“They must be putting quite a dent in your purse, mustn’t they?”
“Yes, we agree.” A few pancakes lathered in syrup between a pair of poptarts.
“So I was thinking, why not let me pay for your cupcakes, so you may keep your bits ready for something more substantial.”
“Yes, very well.” Mumbled through a full mouth of waffle and pancake.

Celestia chuckled, and with one last polite sip of her tea, she got up just as Luna was finishing off her breakfast, by licking the syrup and butter off every piece of tableware she could find.
“I shall go make the arrangements then,” she said, daintily dabbing her sisters face clean, “for now, why don’t you go take a nap. That big breakfast must have taken a lot out of you, and you do not start your duties until nightfall anyway.”

“Mm, yes, perhaps we shall,” Luna grunted, pausing to let out a loud burp, followed by a smack of the lips instead of a pardon, “get some rest. We have been feeling rather...lethargic, lately.”

“I can imagine you have,” the older sister smirked, though Luna had not caught on.

The two sisters departed the dining area, Celestia making her way to the throne room while Luna lumbering her way back up to bed. Half-way there, she nearly collapsed from exhaustion, and had some pegasus guards assist her the rest of the way. The poor stallions would have pretty sore backs later.

Finally in her room, the portly princess collapsed on her bed, the large queen-sized frame bending inwardly from the sheer mass being piled onto it.

Happily full and content, it took her no time at all to drift off to sleep…

A month or so had passed since Princess Celestia volunteered to pay for her sisters indulging in Sugarcube Corner’s famous cupcakes, and the decision had made a serious change in Luna’s life.

To call her a pony at this point would be generous. Right now, she would be best described as a house-sized blueberry, with tiny hooves and a head and tail. Her legs, stubby and sucked into their rolls of flab, had been deemed useless a while ago, only able to do so much as wiggle her treestump hooves, which had badly outgrown their shoes. She was stuck resting on her globular belly, which seemed next to bottomless and take whatever she was fed.
Her flanks had expanded massively, to carriage-sized proportions, with the crescents covering them expanded badly and looking more like plump wedges of cheese, fitting the rotund ruler’s new habits quite well. Her sparkling tail sat almost humorously atop between them.
On the front side was an incredibly flabby face, sporting a pair of huge saggy cheeks, like deflated beach balls, and a trio of thick slabs of fat beneath her chin with a fourth on the way. Her cheek flab penetrated her peripheral vision, blocking out the underside of her sight. Her collar had snapped off her thick neck-rolls a long time ago, but her little tiara sat rather cutely on her head, beneath her still-flowing mane.

She rarely spoke anymore, since her laziness had reached such a degree that talking too much would wear her out. So she would shorten her demands to deep, rumbling one-word barks, such as “FOOD!”, or “HUNGRY!”, or “RUBS!”.
Her new spoilt rotten attitude came from spoilt rotten treatment, of course. Each meal, and every snack, would be accompanied by a belly rub by many ponies on both sides. She appreciated how well they did their job, and how incredibly eager they were to do so. Some of them even cleaned her up when she began getting too dirty around the face, and washed her enormous body when she needed it.

She thought the same of her feeders. Celestia had several guards and servants assigned to ‘snack duty’, meaning that they would all work together to feed the voracious princess and keep her happy. At first they were unsure of their new position, but they quickly grew fond of it. Celestia even had been approached by volunteers, in and out of the castle!
Ponies across Equestria had gotten word of their princess’s new habits, and some made the trip to the castle to participate in the feeding. Some ponies claim to have seen Fluttershy, and even Pinkie Pie herself, participating.

Luna still kept her duty of controlling the moon at night, though it was the strongest form of magic she would do at this state, aside from levitating food to her mouth when she had to.

Celestia had indeed promised she would return her to normal soon, but for now…

“Some more cupcakes, sister?”
“MORE!”
“Oh very well, I shall make some orders!”