Sustaining Solar Swelling

by PonePlumper

Rating: mature
Tags: Princess Celestia, Sex, Twilight Sparkle, Anthro, Profanity, My Little Pony: Friendship is Magic, Dark, Death, Alternate Universe, Sad, Other, Princess Luna, Porn, Fetish
Length: 3410

Equestria's sun is visibly bigger, one day. In turn, Princess Celestia undergoes a strange biological shift that makes her viciously ravenous. Her sister and the kingdom must help her glut on food and subjects until she's grown tremendously.

A rude awakening transpires when Celestia prepares to raise the sun as she has done for countless days, and as she does, it occurs to everypony in Equestria that the sun has grown larger than normal. The princess is afflicted with a debilitating, painful hunger that causes her to ravish any and all food she could get in the castle. Causing quite the comical, but concerning disturbance, at first.

Until it's repeated for weeks, she grows a foot taller, and devours a guard. Twilight Sparkle and Luna seek answers. They soon find out that Celestia must be fed until the hunger is sated, and her body has proportionately grown to fit the sun's growth cycle.

Celestia's new diet lasts for quite some time. Various misadventures and societal changes occurring as most ponies contribute to the solar diarch's growth to record breaking height, width, and weight. Some even using the situation as an excuse to fulfill depraved fantasies, while others are effected in stranger ways.

WARNING: Absurd fetish fuel; hedonism; bodily expansion; food stuffing; weight gain; soft vore; both willing and unwilling prey; digestion of prey; future regeneration of eaten prey; obese pred; big size difference; wardrobe malfunction; property/furniture malfunction; slob/belching/farting/sweat; body worship; squashing/facesitting; some sad; external drama/conflict; acceptance of messed up new behaviors and societal norms; voyeurism; fetish exploration; some awkward scenarios; our sun may expand until our planet is absorbed, one day

Art by the legendary SirMasterDufel

Published 2019-10-29 01:40:01 UTC
Last updated 2019-10-29 01:40:01 UTC

1- An awkward game of cat and mouse

Silver Spear wanted to leave so badly. He wanted to wipe the bead of cold sweat from his brow. But he was frozen with fear, instead of the normal, stalwart stoicism that he was trained to maintain. He wished he weren't left alone in this hall, either. However, he had a very important duty to uphold. A protocal that he had no experience in, nor had he ever imagined would be thrust upon him. He, and many of the other guards of Canterlot Castle couldn't possibly have been prepared for what had to be this living nightmare created by Discord or some other cruel being. Now, they were responsible over a beast. One they couldn't slay. One they couldn't harm. One they couldn't let escape the castle, either. One that was hunting them all.

"Who the hell was responsible for guarding her room? Making sure all of the security spells were fortified? Made sure she was fed the last shipment? Why am I the only one in this wing?!", Silver's internal questions raced through his mind as his heartbeat struggled to keep even. His breathing was just as hard to control. But, he knew that if he didn't keep as calm as possible, he may get caught.

His ears perked, and his eyes widened as he heard a vase shatter around the corner to his left. The hall was long and wide, but the sound echoed off the ornate walls. The normally serene interior of the castle felt anything but for the past few hours. Despite any windowed areas being brighter and more inviting than ever. The guards now felt they were in an enormous death trap that, although they could technically leave at any time, they would not dare abandon. For the outcome could potentially doom all of Canterlot, possibly even Equestria. The grip around his bulky shield tightened as if he would die if it were dropped. Which, was actually just about true. At least, he had hoped it would protect him as well as Princess Twilight Sparkle and Princess Luna had promised. Those two have been gone for a few days now, seeking a solution to this madness. But, they left every guard with a massive shield - specially enchanted to ward off their captive, if she were to get aggressive.

Then came a loud moan, proceeded by an even louder belch. Audible, uneven stomps could be heard getting louder as they approached from around the corner that Silver Spear has been staring at.

Now Silver Spear was quaking in his armor. He wanted nothing more than to run. But, he knew he had to stop her from advancing any further. And, hopefully, he could be the hero to neutralize her. Although, his courage was waning fast.

A white, bulbous mass jutted out from around that corner. A large, white hand shifting forward, against the adjacent wing's wall. Just past some fat breasts that were still concealed by a familiar nightgown. The telltale, beautiful, ethereal mane undulated forward in an nonexistent breeze. The gorgeous visage of Princess Celestia was in sight. Several yards away from Silver Spear's post. A figure that was known to bring calm and happiness to any who gazed upon it. Now struck primal fear in his heart. She seemed to be leaning heavily against the wall, breathing laboriously as the other hand held her bloated stomach.

Pincess Celestia wasn't feeling right for nearly a month, now. And, it seems she visibly had changed, as well. The nightgown she was still wearing since this morning was looking undersized. The hem at the bottom reaching her knees, when they had once been able to droop close to the floor. The sash that kept it closed around her waist was now slid up above the apex of a full gut that jutted out in the open air, no doubt due to an excessively large meal. Her breasts were fatter, as well, but not by enough to fall out of her bra and the whole garment. Her face was sweating and tinged red, not having changed much more than that, but it was no less alarming. However, as her mouth and eyes opened, there was an eerie glow coming from their depths. Her mane and tail radiating brighter than usual, as well. The sun cutie mark on her flank even glowed through the gown. Her ears twitched, and her head snapped towards Silver Spear, like a possessed doll's. The glow intensifying slightly as her eyes dilated. She sniffed.

"S...S-Silver S-S-Spear...?", she groaned raggedly. Her voice travelling across the hall at a warbled, nightmarish decibel.

"Gulp...H-H-Hello, P-P-Princessss..Hah...Hah...", he panted back. His crotch pad was now thoroughly soiled.

The princess, to his surprise, grimaced in pain and looked at him with deeply saddened eyes. "I...I-I'm so hungry, m-my little pony...I...I couldn't help myself...uurrrrrrp...urrgh...I took one of the guards by surprise..." The sincere words were still veiled in that unnatural voice. A tear dripping down from one of her burning eyes. "You...you have to go. You smell and look...so delicious....", she hissed. Her wide tongue licking her chops. Her eyes changing from those of an upset mother, to those of a hungry glutton. "MMMMMM..." She grinned as if she were looking at a delectable cake. Her stomach growling so loudly, it rivaled the roar of a manticore. She stopped leaning against the wall, as her belly visibly contorted and shrank until there was only some slight plumpness. Her nightgown, although stretched, had draped around her middle once more. A shiver went down her body, and a sudden burst of energy and blast of light radiated from all over her as she belched again. When the blinding light faded, her grin became wolfish, and she began stomping menacingly towards her loyal guard. Causing the surrounding area to tremor with each plodding step.

Despite this, the reveal of the old Celestia's sadness gave Silver Spear some newfound resolve. He was still scared out of his mind, but he decided to only shift back slowly, with his shield at the ready. It glowed with a deep, purple aura as he held it professionally within his one muscular arm. His stance primed to withstand any force. "Princess...I'm sorry...But I must defend Equestria...And, I must stop you to do it."

If she heard him, she didn't show it. She just kept stomping forward. The closer she got, the more apparent it was that she somehow grew even taller. Celestia was already about nine feet tall, normally. But, it seemed as though she was around ten now. Towering ever greater over the six foot tall guard. He braced himself as Celestia's horn sparked, and a bolt of powerful magic attempted to disarm him. The shield bounced the charge right back into her horn, but that didn't so much as slow her down or have her flinch from the impact. It was just absorbed right back into whence it came. The stomping now so close that it was nearly making Silver topple over.

"~Please, Silver Spear. Just give in and feed your princess.~" Her tone sweet and pleading, despite the warbling vocalization. She was now mere feet away, and Silver Spear had to back up. He was sure she could physically overpower him if he let her get close enough. But, to what end? He couldn't just run and lead her to a possible divergence. She could end up escaping the castle...Unless he maintained her attention, that is. This was going to have to be his plan of action.

"S-Sure thing, Princess.", he muttered shakily. "B-But...", just before she got within five feet of him and began reaching out arms as thick as his legs, with grabby hands that could each wrap around his head. Her tongue lolling out amusingly like a dumb dog. He quickly turned with his shielded arm still facing her and bolted. "You're gonna have to catch me, first!"

"Huh?", Celestia's surprised face met the floor as her over eagerness caused her to lose her footing, the entire hall trembling as she fell face first. She looked up with searing eyes, visibly perturbed. "Ooooooh...c'moooon...", her strange sounding voice whined like a disappointed foal. Silver Spear had already turned the corner opposite of the one she just came from. She got up and clenched her large fists. Now irritated as she scowled like her parents just grounded her. She stamped one hoof in frustration. Her belly roaring within her. "I'M HUNGRY!!!", she bellowed loud enough to shake the whole building. The tremendous sound demonic and fierce.

Silver Spear's heart leaped in his throat as he nearly tripped over from the booming roar, and rapid tremors could be heard directly behind him. He was literally running for his life. But, he couldn't get too far ahead, he rationalized. He had to keep her occupied until some reinforcements could help him neutralize her. She was far too large and strong for him to take her on by himself. He ran to the end of his current wing. The next one he would have to turn into and out towards the rest of the castle. Maybe, if he could get her to chase him to where the latest shipment of food was being held...Hopefully, his fellow guards were not cowardly hiding, and would come to help. However, he had stopped with his shield facing his aggressor's direction.

Celestia rammed into the wall at the other end as she slipped from turning too hastily. Her eyes and gullet now emitting light as if she were a living lantern. Mane and tail flowing and glowing more intensely. She clumsily threw herself forward towards his direction and charged like a deranged minotaur. Steaming drool being flung about from her maw. "Get back here!"

Another bolt of magic zipped ahead of her from her horn, more powerful than the last. The force of it bouncing off the shield, causing him to fly back into the wall. Knocking the wind out of him. But, he had to get up and move quickly. He ran for many minutes, doing all he can to make sure he wasn't caught. More bolts of terrifying magic flew at him. More of the castle was damaged in the feverish chase. A chaotic cacophony filled the halls as the massive princess rampaged throughout them, all to swallow up one stallion. Thankfully, any shattered windows didn't give the princess any ideas. He eventually managed to get as far as the dining hall, never losing sight of his monstrous princess. He charged through the double doors, not noticing he did with enough force to break a lock. Five guards gasped at the sudden intrusion. They looked paralyzed with dread. All cowering under the long table. They knew what this meant. They had heard much noise from this side of the castle, after Celestia had eaten Stern Sword. They just hoped the other guards would rally to their location.

Silver Spear was breathing heavily. He looked at them all with intensity and yelled, "Well?! Are you all gonna just stand there gawking?! She's coming!! And, we have to neutralize her before she rampages out of the castle!!"

"B-B-But, how?!", one of them croaked. "N-N-Not even Stern Sword could save himself!"

"We must stand together!!! We must not fail Equestria and the princess!!! She's in pain! And, if we can get her to the shipment she was supposed to be eating for the day, we can win!!!" Silver Spear wasn't usually this determined, but that had changed with this day. Unfortunately for him, an intense warmth was closing in on him.

"Shipment? Is it as filling as you claim?" Silver Spear's fur stood on end. He hopped forward and onto the long table like a terrorized rabbit. Turning quickly, he spotted the princess standing calmly at the door. She had her head tilted like a curious child. Eyes still ominously burning. Stomach roaring in desperation. "~Oh, how lovely. More food.~", she cooed deeply. Then proceed to stomp her way over to the end of the long table. She lifted the entire thing with one hand, making Silver Spear tumble over towards the other end. She peered down at the cowering five, her bright eyes beaming over them all like spotlights.

"~Aren't you just the most adorable things? You all look cute enough to eat!~" She lunged her free hand down and managed to grab one by the tail, while the others stumbled out in sporadic directions. The clutched guard screamed like a little filly. All of the guards, Silver Spear included, cowered back against the other side of the room. Their large shields shaking with them. While the others hid their gaze with said shields, Silver couldn't help but tensely watch as Celestia used her magic to remove everything off of her prey. The poor fool was crying profusely as he dangled, naked, over the princesses glowing, snakelike maw. She dropped the table with a resounding crash that cracked it in several spots, then gingerly lowered him to his demise.

His head was soon enveloped with the searing light that strangely felt inviting. It's warmth not as painful as he imagined. This didn't help the fact that, as soon as his snout touched her tongue, Celestia moaned in delight and began ravenously wolfing him down. He squeaked and yelped on and off, even screaming for help as Celestia greedily swallowed him down. Her teeth and throat tugging on him roughly every other second. Within mere moments, she was effortlessly slurping down his legs and tail like a wet hotdog. Throat and chest bulging out from his bulk. He himself being thick, muscular, and over six feet tall. His entire form stretched Celestia's belly out massively. The sash holding her gown together burst in half from the force and size of her meal. Pink bra withholding her big tits now exposed for all to see.

"AAAaaaah...BUUURRRAAAAAAP!!!" Celestia sighed with relief and belched mightily in victory. Her rump thudded onto the floor, causing the whole room to quake. The intense glowing throughout her form died down to a minimum as a dopey grin adorned her face with her tongue lolling out. Her big hands caressed and rubbed as much of her taut gut as they could. Another rumbling belch puffing out her cheeks as she attempted to stifle it. Various lumps formed along her stuffed sack. The poor guard struggling within. Celestia looked strikingly content. Now full and happy.

Silver Spear looked around him. He realized that he and the others could escape and return with back up, right now. Try to transport Celestia back to her magically reinforced room. But, as he gazed at his overly stuffed ruler, it seemed to be too late to even attempt to defuse the situation. Celestia was sated for now, and trying to move her could make things worse. Silver Spear trembled and actually dropped his shield. The loud clang echoing all around. He dourly looked down at it in shame. "Who am I kidding...She's gonna devour us all...And, we can't attack her...We can't deny her..."

Then, after several moments of silence, an unexpected voice interrupted his descent into despair. "You...You may strike me down, my soldiers..." The voice sullen, and broken.

Silver Spear and the other guards all jumped in their skin. Now all dropping shields as they stared incredulously at Celestia. Her entire demeanor had changed. The remorse in her eyes punctuated by flowing tears. She was visibly disgusted as she looked down to her bulk.

"I-I...I don't know what is wrong with me...But...I can't stand terrorizing my little ponies like this...I've become a monster." She sobbed and barely croaked out the words. Voice no longer tainted by the horrible warbling. "I must be stopped...And, I fear the quickest way...is to be slain...like the beast I have become. Before I destroy any more lives."

The guards all shifted their eyes between each other, now all slumping in despair themselves. Silver Spear spoke up as he approached Celestia with concern in his eyes. "B-But, your majesty...Surely, Princess Twilight and Luna will find a solution...I...I think I speak for us all when I say, we could not bare to have you killed for something you clearly can't control." The rest of the guards glumly nodded in agreement. Silver Spear continued to advance towards the princess, his hurt gaze never leaving her's. Sitting down, with her legs spread around her belly, Celestia was eye level with him. He walked around her to be at her side. The other guards gained the courage to do the same. They all leaned into the big diarch. Trying to comfort her with that physical affection most ponies were known for.

Celestia's heart was warmed, and a small smile crept through her emotionally distraught features. It was all ruined by the awkward bubbling and groaning of her stomach. The guard within had seemed to already stop moving. She was digesting him rapidly. After a deep, droning belch, she frowned and teared up again. "I commend you all for your bravery, kindness, and loyalty. But, it doesn't change the fact that I am a danger to you all. I'm not certain if I will be sated for long. We must have me quarantined as soon as possible, if you will all refuse to take me out."

"Sigh, the thing is, princess...You broke out of your room easier than we thought possible, with the heavy duty spells set in place by Shining Armor. One of us must have not fortified them well enough, this morning. But, considering you nearly crushed and disintegrated me and the whole castle, I think it's gonna only get harder to keep you here. We're gonna have to get Shining to enchant the entire castle. And, unfortunately, he's still a bit worn out from the strain of producing multiple of those powerful security spells. He may be good tomorrow, but even then, the fortification of the castle will take hours, as well...We're gonna have to wing it, and keep you fed, until then."

Celestia groaned in dismay. "Twilight...Luna...please hurry..." With that, Celestia grunted and heaved herself up onto her hooves. The guards' heads inches bellow her breasts. Some of them blushed as they realized she was only in her bra and panties. But, now was not the time to get flustered in that way. "Well...we better find that shipment. Gods know I'm going to get hungry again." She said in frustration. Her belly emitted a bubbling noise, and it shrank slightly before their eyes. "Oh goodness." Celestia closed her eyes and bit her lip. She blushed crimson as a fart trumpeted out from between her thick buttocks. She looked down in embarrassment, not wanting to meet anypony's gaze.

All of the guards froze. Before they all began to march forward with haste, none of them willing to watch Celestia's back, now. One of them was blushing and getting a why boner, while another caught a whiff and gagged. Celestia sighed loudly and mechanically marched just behind them. Any shred of dignity she had left fleeting.

Author's Note

Just an idea I've had for quite some time. This opening chapter felt appropriate with the holiday coming up.

I have many ideas, in general, that I never get around to for one reason or another. I just simply had the focus and urge to start this. I'll do more as more comes to me. Otherwise, I'll work on whatever I feel like working on. I'm trying to get back into writing, and I'm feeling good enough to try getting into it again.

With FiM done, I've realized many different fanfiction ideas I've had never have come to fruition. I aim to fix that as we are in that postshow state.

I have to face the fact that, if I am going to write, I've gotta just work on whatever random thing comes naturally to me, at the time. I often have a hard time focusing on one story for too long. I've got a handful of stories I've been randomly working on, that haven't been published. As for stories already published, I'll get back to them, eventually. No matter how unfinished, I just gotta get my ideas out there.

I'm also very conflicted on how to tag this. As there is a level of silliness in the story. But, it's also dark, sad, and porn. While only three blue tags are allowed...