Nightmare Moon's Rubenesque Revenge

Twilight cautiously edged around another corner, trotting into another dilapidated corridor. Behind her, a small procession of five mares followed, determination apparent upon each of their faces as they joined her, small clouds of dust erupting with a hoof fall. Held in a sparkling purple field, five stone orbs drifted around them, each inscribed with a unique symbol. Wandering around the abandoned halls of the ancient castle was certainly a strange experience, made all the more bizarre by the utter lack of any opposition inside.

“Ya know what Twilight? I’m rather missing being back in the Everfree.” Applejack mused, taking a few glances out of the smashed window beside her, pale moonlight streaming through the stained shards.

“Really AJ? We couldn’t go like 5 minutes without something going wrong, how could this place be any worse?” Rainbow Dash responded with incredulity, lazily flapping her wings as she hovered a few meters above the ground.

“Well sure Dash, but at least we knew there would be something strange here and there. Ever since we went inside, not a single thing has happened. Puts me on edge, ya know.”

“Ooh, I know exactly what you mean, Applejack. It’s so cold and dark in here, at least in the forest there were all those nice critters.” Fluttershy agreed, hanging back just a little from the main group.

“Regardless, the Nightmare is still here somewhere. If I had to guess, she may be preparing herself for when we arrive.” Twilight cut through, grunting as she hefted the stone orbs.

“Now that is a scary thought darling, I hope you have a plan when we get there.” Rarity commented, a twinge of panic undercutting her voice. Twilight shook her head, a small grin flashing on her muzzle.

“Don’t worry Rarity. I just know the elements are still here. I have a sneaking suspicion that we’ll unlock them when we find the Nightmare, whatever ‘spark’ the book was talking about will come to light.” Rarity wasn’t quite sure if she believed that was entirely true. However, Twilight did sound rather confident in her convictions, and it wasn’t like they had any other option. Silently nodding, they approached a set of spiral stairs.

Then, they felt… something. In the stone below, they felt a strange rumble and rocking. “Hey guys, why’d you stop?” Rainbow paused, looking back at the group, all five had stopped, looking around in confusion, a few puffs of dust flaking from the ceiling.

“I… I don’t know. Maybe an earthquake, I guess?”

“Nah. If it was an earthquake, my tail would be going all spiky and my hooves all ticklish.” Pinkie spoke matter of factly, drawing an incredulous look from Twilight.

“Wha… Pinkie that makes no…”

“Don’t question it Twi. Besides, you’ve got better things to be worrying about in your egghead noggin than to be worrying about the Pinkie Sense.”

“Yeah. Besides, you’ll have an entire episode for that anyways.”

“Uh huh... Well anyways, whatever that was, felt pretty close to me. I reckon it’s probably up there… whatever the hay made that.” Applejack steered the conversation back on track. They nodded, stepping onto the worn stone blocks, working their way upwards. As they climbed, the same strange rumble came again, growing stronger with each meter ascended. Soon enough, a whole spectrum of other sounds joined in; a growling, blorping noise that was quite unlike anything they’d heard before. That was mixed with a sweet scent that permeated the very air Twilight breathed, quickly overtaking the smell of damp and decay. The smell alone was enough to remind her that she hadn’t eaten anything at the surprise party, setting her belly gurgling. Finally, the opening was in sight, Twilight motioning with her hand, all of them huddling together.

“Right, we’ll all go in together, but be quiet. I have no idea what Nightmare Moon is doing, but if she’s distracted, we might be able to get the jump on her.” They nodded, some more enthusiastic than others. “Great, let’s do it!” Creeping over the last few steps, they all stopped in shock. Filling a good portion of the room was an object of considerable proportions. It was the colour of fresh snow, the great sloping, overlapping swells and curves giving it the appearance of rolling hills in the winter.

Looking closer, one could begin to see several peculiarities. For one, two misshapen orbs stuck out on the blob's front, the ends capped by light pink ovoid’s. Their eyes travelled around the immense mass, taking in the overlapping nature of the great sagging masses as they fought against gravity. Looking to the side, however, they spotted something amiss. Upon a side of a roughly spherical mound, they spotted a strange image. A yellow-coloured mass, bigger than a goods cart, with a distinct radial pattern curving into a stylized image of the sun. An involuntary gasp left Twilights lips as she spotted it, the dots suddenly connecting in her mind.

Suddenly, another groan and grumble rumbled forth from the mountainous monarch, followed by the sounds of heavy swallowing and gulping. Soon, the others were putting the clues together, a mixture of emotions working their way onto their faces as it dawned on them that this room filling mass of white blubber was, at one point, Princess Celestia. Her gut sprawled out in front of her like a tidal wave of pure fat, her immense jelly belly formed of rolls thicker than entire beds, stacked atop each other haphazardly. Where her belly button was, was now a literal chasm that could swallow up the group whole, with plenty of room to spare. Those immense rolls battened forth, creating the ultimate set of love handles that oozed from her side, almost managing to cover up the great spherical stacks her legs had regressed into.

Once slender and graceful, those limbs had been turned into nothing more than useless piles of adipose, too stiff and encumbered to move even an inch, just acting as more storage for the deluge of fat blanketing her figure. Moving past the mammoth breasts puffing out on her chest, what could only be assumed were her arms. Like with her legs, each had been turned into a concentric stack of flab as each section ballooned out to absurd proportions. Her bingo wings were easily as wide as her wing spawn, the heavy sacks of flesh drooping onto her countless side rolls, jiggling with every miniscule movement she made.

Moving to the side, Twilight watched as more and more of Celestias butt came into view, and found it impossible to match with anything on a living creature. Swollen to such an absurd size, they’d been forced to accommodate tons of soft, malleable flab apiece, each blob of booty blubber covered by endless rolls and creases that distorted her sun cutie marks into uneven smears. Cellulite dimples were liberally dotted across her vast, sagging plot, folds festooned with the marks could be found wherever she looked. Rolls were stacked atop even thicker folds, overlapping in great discordant swaths as every inch of soft, undulating adipose fought for any available space. Pushed upwards by the tons of fatty flesh, she was all but impossible to ignore the mountain of a mare.

A monarch turned mountain, the thought rolled around Twilights head as she tried to plot out the idea; trying to deny the fact her mentor literally outsized houses outweigh the entire population of Ponyville. Through the cacophonous choir of stomach noise and consumption, she could hear somepony else, somepony very familiar. “My my, I knew you were a talented pony, but I never expected you to have the makings of an eating contest champion. You’ve eaten everything, the entirety of that enormous cake, now resting in this wonderful belly you’ve grown.” There was a pause, and the mane 6 watched as Nightmare Moon wandered into view, her bare bottom facing towards them as her ethereal tale swished back and forth excitedly.

“Oh, and how delightful it all is. An ocean of soft, plush princess meat to lay upon. I can’t imagine how comfy you are, surrounded by meters worth of delectable flab, wallowing in your obesity, as carefree as a pig and a mud pit.” The only response she got was a few deep groans, Celestia’s mind too overburdened by magic and hormones to think rationally. She only felt pleasure; her meters upon meters of flesh pressing against itself and the ground, the cream and chocolate being pumped into her mouth, the Nightmare sinking into her body. Another pulse of magic, and she moaned once again, eyes rolling back as another orgasm rocked her body, setting off a chain reaction of undulation through her form. Down below, her gigantic thighs and fupa were slickened by another burst of mare cum.

The Nightmare bit her lip, teasing her own sex as she leaned down towards Celestia’s face. Her head, just like the rest of her body, was packed with hundreds upon hundreds of useless pounds. Immense cheeks blimped out, resting upon the immense collar of adipose her neck had morphed into, melding and mingling with a stack of chins reminiscent of a waterfall. Her back fat was beginning to pile up significantly, threatening to ride up the back of her head. Between her lips, the two hoses had been neatly jammed in, thin trails of each liquid dripping onto her face and pooling slightly between each fold they trickled over.

With a yank, she pulled both tubes free, tossing them over her shoulder as their contents spilled out across Celestia’s bulk. Before Celestia could complain, Nightmare pressed her lips to Celestia’s own. Splaying her legs against the cascade of rolls, the Nightmare began to buck her hips back and forth, grinding her vag against the soft, pliable blubber as her tongue mingled with Celestia’s. Her hands roamed across the landscape of adipose, groping and squeezing at anything she could get her hands on. As greedily as the blob she lay upon, she mashed her face between those elephantine cheeks, moaning as her sex throbbed, slamming her hips into the cushioning flab. So vigorous was her Prench kiss, their horns occasionally collided with one another, adding to the menagerie of sounds filling the room. “Yes… Yes!!! I’ve waited so long for this! Mmm, nnrrgghhh… you fat cow, you mountain of porcine pounds, you’re nothing but a mockery… aahhh… such a blob… such a useless pile of lard… only good for eating… ooooohhh how I’ve ruined your body… ahh mmmhh… so big, so soft… so bucking fat!!!” With a final slam of her cunt into the soft embrace of her most hated enemy, she let out a loud gasp, moaning as she came.

Gasping, she rolled onto her back, her chest rising and falling as she laid back into Celestia’s flesh. Closing her eyes, she smiled in the afterglow, gazing up at the cold stone above her. She felt content, though she was noticing something was amiss. Nightmare Moon’s eyes slowly moved over to the hallway, eyes widening in shock as she saw six mares looking up at her in a mixture of anger, disgust, and a slight bit of arousal. Completely bereft of armour, her mane disheveled, and a mixture of half-eaten food, sweat and sexual fluid covering her, she was a far cry from her appearance at the town hall. More to the point, she noticed that a set of multicoloured jewels were orbiting around the group, forming into a set of stylish necklaces and a crown.

All she could do was sheepishly smile, sparks of rainbow energy building up. As the energy wave arched over and crashed down upon her, only one thing popped into her mind as the cleansing magic washed over her.

“Totally worth it!”