Tia's Troubles

Twilight awoke on the remains of her bed, which had been broken following their sexual ordeal earlier, and sat up.

“Wow. That was a day I won't forget fast. Celestia? Princess Celestia? Spike?”

She called out inquisitively, remembering distinctly that the Princess and Spike had indeed been here earlier. Planting her feet on the floor next to the bed, which now lay at floor level, she uneasily stood up, and felt an unfamiliar weight on her chest.

“Oh! I forgot about you two.”

She felt the weight of her oversized chest in her hands, the abundance of flesh filling her grip. Twilight had never been particularly well-endowed, but now she was bigger than Celestia was before she started growing. Her cherry-sized nipples sat erect atop semi-spherical areolae, as if they were struggling to hold back something.

“I'd better not squeeze these, I might go off again, Well, better find something to wear. If anything still fits...”

She walked over to her wardrobe, noting the weight of her new assets, upper and lower, and rather liking it. Opening the doors, she scanned for anything that she'd actually be able to get on, let alone fitting properly. She was pretty certain that none of her underwear would even get past her thighs, never mind her hips.

“Ah!”

She spotted something she hadn't worn in a very long time, a pair of black spandex leggings. Before she arrived in Equestria, she was a little soft around the edges. Determined to shape up before meeting royalty, she took up jogging for a few months prior to leaving for her new home. She managed to shed the excess weight, and the leggings disappeared into the dark recesses of her wardrobe, never to see the light of day again. Or so she thought. She took them out and held them up in front of herself.

“I never thought I'd wear these again. Well, it's either this or nothing.”

Stepping into the leggings and bending down, she began to tug them up her legs. Pulling with all her strength, she managed to force them up and over her large ass, although a little butt cleavage was still visible at the top. A victory nonetheless as far as she was concerned.

“Shirt... shirt... uhh...”

The best option seemed to be what would have once been a loose-fiting pyjama top, but it wouldn't be loose any more. Getting it over her head and shoulders was no big deal, but her boobs put up a fight. Eventually though, the twin peaks were conquered, and she managed to cover them completely. Giving herself a brief once-over in the mirror she had to admit that it wasn't a particularly stylish look, but it was infinitely better than just using her hands to keep herself modest.

She turned to the side and grabbed a handful of her protruding rear.

“I just hope these leggings hold out. They're reaaally tightly packed.”

She gave them another yank for good measure, but all she managed to do was set her ass cheeks into a wild frenzy of jiggling.

“Looking good Thighlight!”

Twilight turned, seeing a grinning Spike sat up and holding his steadily inflating meat.

“Wow... uh, ahem, as much as I'd love to, Spike, we need to work out what's going on here. Do you have any idea how much we've changed in the last few hours? Something isn't right.”

She tried to fold her arms across her chest, forgetting her enlarged bosom. She looked down and folded her arms again beneath it. Looking up again, she noticed a letter on the bedside table. Picking it up, she read it aloud quietly.

“Twilight,

Thank you for the wonderful time today, I'm still replaying it in my head and wishing we were still spending time together. I'm sorry that I dashed off without saying goodbye, but an old friend got in touch and offered me a good time. No one can pull my strings like he can, so I couldn't refuse, especially with how wound up I am. I must have been pushed over the edge half a dozen times by Spike or yourself, but I just had to have more. Thank goodness he got in touch when he did, I didn't want to wake either of you up!

By the time you're reading this I expect we'll both be in my chambers at the castle, do come over and visit us. The more the merrier!

Love,

Tia”

Twilight put the letter down, feeling a stirring in her loins.

“Gosh, Celestia never talks about sex. Not like this anyway. What's got into her? And what's got into me?”

She gave herself another once over in the mirror. After a pause, she noticed a pressure growing in her crotch, rubbed it timidly, and winced with pleasure.

“Hm. Maybe I should go over there. Wouldn't want to miss out on the fun. Dammit, there you go again. Get a hold of yourself. Spike, I'm going to see Celestia to sort this mess out. Are you coming or not?”

“Nah, I need to get rid of this stupid boner you gave me.”

“Well, do it in the bathroom. And don't make a mess!”

“I can't make any promises but I'll try.”

Spike plodded off to the bathroom steadying his four feet of dick with both hands. His huge shoulders meant he had to walk through the doorway sideways, holding his length up against his chest. He smiled uneasily at Twilight as he slipped through and closed the door. She just rolled her eyes and made her way out of the bedroom.

If he makes a mess I'm not cleaning it up! Sigh... if only I had the time to ride his big, long...

She shook her head, trying to clear he mind and focus on more pressing matters.

“I can't waste any more time. See you later Spike!”

She closed the door behind her and moved briskly down the stairs, sending her assets into another jiggling fit.

Meanwhile, Spike was having difficulties ensuring he wouldn't make a mess. He was trying to force his rock-hard pole down so his load would go into the toilet bowl, but it was difficult and quite uncomfortable to keep it down at such an angle. He gave up trying to force it downwards, and it sprang back up, flicking pre over his head and onto the tiles behind him.
"Darn, that won't work. Hm."

Scratching his chin, he surveyed the bathroom. By this point, all the stimulation had brought him very close to the edge. Veins the size of shoelaces snaked across his length, while the angry purple head flared and gently pulsated. Every few seconds a drop of pre would leak from the tip and drip on the floor. He looked down at the *plip* noise.

"Note to self, wipe that up before Twi gets back."

He stepped into the bath tub, dropped himself down and squeezed into a seated position, his length stretching up in front of him. He firmly grasped it with both hands, then tugged the shower curtain across. He looked up at the ceiling.

"I know I'm gonna have to clean that later."

He began to slide his large hands along his slick meat, spreading the pre running down its underside. He reveled in the deep, throbbing pleasure that resonated up and down its entirety, his heart rate increasing as he gradually picked up the pace. The soft skin displaced in his grip while the harder spongy center resisted, the friction sending electric tingles of pleasure deep into his being. Like a musical note, each long stroke up or down had a palpable signature that lingered in his member as he gratified himself.

With his left hand, he reached down and cupped one of his huge balls, squeezing it gently and savouring its fullness, finding satisfaction in its immensity.

Already on edge, it wasn't long before he was on the threshold of a mind-numbing orgasm. He began to visualise Twilight's voluptuous form in his mind's eye.

"Oh fuck yes... that big fat ass... unf..."

He imagined himself pounding Twilight's big booty, the soft, velvety flesh rolling in his grip as he forcefully rocked his hips and fucked her senseless.

"Yes... yes..."

His cock head quivered and blossomed ever so slightly as his watermelon-sized nuts clenched, getting ready to send a super-sized load rocketing up his manhood.

"Nnnhhhh..."

He gritted his teeth, tightly closed his eyes and involuntarily bucked his hips as the first rope of jizz spurted audibly from his slit, splattering loudly against the ceiling and raining down over him. Over and over, thick spurts of viscous fluid fountained upward and splashed back down as Spike sucked in deep breaths and groaned, flexing the muscles in his crotch with each salvo.

After half a minute the ceiling above him was painted thoroughly white with several layers of cream, while more splashed against the shower curtain and rolled down into the tub. His midriff looked snowed under as cum dripped down and coated his skin.

The intense orgasm lasted almost a minute, the ropes receding into little spurts like a cherub fountain spitting water. Finally, a few globs oozed from the head and pooled between his legs, joining the rest of the load that had already gathered there. Physically drained, his head fell back and he sighed deeply.

"Fuck, I needed that."

Meanwhile, Twilight had arrived in Canterlot. Fortunately, everything so far had gone smoothly. Her journey to the train station had been uneventful, with only a handful of people glancing at her. Those who thought they had recognised Twilight assumed she was simply a lookalike of Celestia's student on closer inspection. The face seemed strikingly similar, but the body was way off.

Unfortunately, Canterlot was much busier. Twilight was also much more well-known here; the Princess often mingled at parties and events, and she had brought her student along to many high-profile social gatherings.

Everywhere she went, she had at least a dozen pair of eyes helping her along. She followed the gaze of one group she passed, and noticed how their eyes were fixed on her chest as she approached, then moved down to her butt as she passed. It was as if they were in a trance, she could almost feel the eyes following her ass down the street.

It's hard to miss, I guess. What's the matter with these people? Have they never seen big boobs or a big butt before?

But when she caught her reflection out of the corner of her eye in a shop window, she realised why they'd been staring. Her clothes were giving up!

“Oh crap!”

A tear, half a dozen inches long, had slowly been forming between her breasts, the action of just walking and making them bob up and down exerting enough force on the top to rip it open. The fact that she wasn't wearing a bra didn't help; half a foot of pale, bulging cleavage was on full display for any passerby. She looked over her shoulder, and sure enough, there were problems with her lower half too. Held up solely by the curve of her substantial ass, her leggings had been shaken out of place by her butt's wobbling and jiggling, and had slipped downward, now resting on the widest part of her hips. Thankfully they weren't loose enough to fall all the way down, but for the past few hundred yards the top half of her over-sized bubble butt had been hanging out for all to see.

She quickly tugged up the leggings, the soft mass of her butt cheeks bouncing up inside the material before settling back into place with a little jiggle.

I need to get out of here before the entire town turns out to see me...

Glancing around herself, and holding the tear in her top together with one hand, she broke into a brisk walk, sending her ass into yet another fit of jiggling.

“Ahh... my dear Celestia, that was simply divine. It's almost as if you've been practising.”

Discord laid back, arms behind his head on the pillow, grinning smugly. His enormous dick gradually softened, the head coming to rest next to his face. He could change the size of his body parts at will to a certain degree, but Celestia's supercharged milk had taken that ability up a notch or two. She sat on the bed next to him.

“I haven't, honestly! It just seems to come naturally when I'm with you. I don't know about you, but I could go for another round. Maybe two.”

She laid herself on top of Discord, sandwiching his immense cock between her gigantic breasts. He had just managed to squeeze it into Celestia's tight snatch last time, but after another few mouthfuls of the royal bosom nectar there was no way it would fit in again, even with Celestia's own growth spurts. He reached around, grabbed two handfuls of her bountiful ass cheeks and squeezed, making Celestia moan aloud.

Her mind was hazy. Somewhere in her mind there so many questions; so little made sense, but the desire to have sex, to be impregnated, to breed pushed aside everything else. Discord, on the other hand, had complete clarity of thought, and knew what he was doing. He was using Celestia to fulfill what he saw as his greatest scheme yet.

He had tried so many times to bring about a new age of Chaos, but each and every time he had been foiled. But now, his will would be irresistible. Celestia was all but incapacitated, a slave to desire. All he had to do was fill her with his seed, and within hours thousands of his Chaotic offspring would go forth from her womb, spreading anarchy wherever they went. With the powers of their Father combined with the magical might of Celestia, they would be all but unstoppable. For all this to be possible, he actually had to impregnate her. The anti-impregnation spell she had cast on herself earlier before she got it on with Spike still lingered, but if Discord could fill her with enough semen in one enormous orgasm, even the Sun Princess' magic would be overcome. But first, he had to be big enough to achieve that orgasm, and she had to be big enough to fit him.

He was brought back down to Earth from his scheming by a grinding motion along the underside of his length.

Okay, maybe just one more round before I get to work. If anyone deserves a little satisfaction it's me.

Celestia had taken a few handfuls of pre from Discord's basketball-sized cock head that had been leaking like a faucet non-stop and lathered it along his dick, then had begun to slide herself up and down it, grinding her pussy along it and finding the large veins particularly stimulating against her nether regions.

“I appreciate the enthusiasm, my dear, but it falls a little short of proper penetration, wouldn't you say?”

Celestia looked up and raised an eyebrow.

“And just how do you plan on achieving that? The head on your friend here is bigger than the head on your shoulders.”

“Don't fret, I have something in mind. But you'll have to wait and see. For now, I'd greatly appreciate it if you could help alleviate my pent-up lust, I'm not sure I can do it alone...”

Celestia stood up and moved aside as Discord's monolithic mega-dick rose like dough in an oven, standing up like a tree trunk until it was a solid six feet tall, and as thick as a ten-gallon bucket is wide. Celestia looked up, mouth agape, as she absentmindedly fondled herself.

“Wow. Okay. If doing that will get this thing inside me, I'll happily oblige.”

She sat her enormous booty down on Discord's chest, and he wasted no time in groping and caressing the ocean of flesh covering his upper body. After her latest growth spurt, brought on by Discord's two or three loads, her ass was too big for words, it had to be seen to be believed. If he had ten pairs of hands, Discord still wouldn't come close to covering the pair of monster butt cheeks.

Celestia wrapped her legs around the giant shaft, her thick thighs spreading out across its surface, then she pulled her breasts apart and pushed them back together with Discord's cock in between. She began to steadily push her over-inflated fun bags up and down, stimulating the enormous dick between her cleavage. The flow of pre began to increase, rolling down the side and soaking the bed sheets. Celestia too began to leak, cream flowing freely from her rosy, apple-sized nipples and running down the underside of her seemingly never-ending bosom.

She couldn't resist to taste her own milk once more. She grabbed one heavy udder in both hands, folded it upward, and enclosed her mouth around as much of the giant teat as she could. She bit and sucked at the same time, her tit letting loose a rope of cream that spurted against the back of her throat. She reflexively tensed from the sudden sensation, her legs tightening around the base of Discord's huge shaft.

“Ohhh... hnnngg... naughty Princess.”

He slapped her fat ass, sending a ripple across its surface. Celestia uttered a cute little whimper before returning to caressing the mighty meat log with her breasts.

“I, ungh, think you're almost there, your highness. I feel something building.”

Indeed, his pumpkin-sized balls were convulsing and churning, desperate to unleash the gallons of cum that filled them to the brim. It was only a matter of time before the dam broke.

The beast flexed and pulsated, the weighty testes bloating and stretching, and the slit opened wide as it could to make way for the onslaught of cream.

Celestia redoubled her efforts, using her over-abundance of thigh and breast meat to engulf as much as the supersized phallus as she could, rolling her massive melons over it, along it, and around it while her quivering nipples sprayed milk across the bed. With one final compression of her thighs around the base, the huge, taut balls beneath her billowed and clenched and the bowling ball-sized cock head above her flared. Discord planted his hands on her wide hips and gritted his teeth.

"Nghhfffffuck, here it comes!"

He screwed his eyes shut while Celestia looked up expectantly, arms wrapped around the girth of the immense, taut bulk.

With a loud SHOOOM the monster erupted, a flood of spooge blasting from the tip and easily reaching the ceiling before splattering against it. Gallons of thick, hot jizz spurted out in one long stream, a bead of sweat rolling down Discord's contorted face, the sensation of pure unbridled bliss overcame him as his enormous, backed-up nuts emptied themselves of their impossibly large load.

After 15 seconds the first load ebbed. But before he could catch his breath, his fat nuts clenched again, and a second even more powerful jet of spunk pumped up and out of his giant dick, followed by another loud splatter above. Jizz was spraying off the ceiling and coating everything. By the time Discord had finished, Celestia's bedroom looked like a winter wonderland, but with a layer of pearly-white jism instead of snow.

The last few dregs of cum oozed from the shiny head and coated Celestia's hands, still clasped against the shaft.

“Wow.”

She started to lick her hands clean, and almost immediately felt a stirring inside herself.

“That's an experience I won't forget in a hurry. And it couldn't have happened without you, Tia. Thank you.”

She unwrapped herself from the softening shaft and put her feet down on the floor, which was covered by a pool of jizz an inch deep.

“I'm glad you enjoyed yourself, but I haven't forgotten what you said. I'm intrigued to see how you're going to get that thing inside me.”

Discord's softening cock flagged and collapsed against him. He wrapped an arm around it, swung to the side and planted his feet on the floor, up to his ankles in his own seed.

“Look around, my dear. There's enough of my essence here to make you quite staggeringly large, if you so desired.”

He picked up what was an empty glass from the bedside table, now half-filled with a portion of his fluids, and offered it to the Princess. She took it and brought it up to her mouth before tilting her head back and raising the glass. The salty tang hit her, the flavour bitter but not altogether unpleasant. She swallowed and enjoyed the sensation of the warm, creamy fluid sliding down her throat, then tilted her head forward and licked her lips.

“Mm, not bad.”

“You'd better get used to it because you're going to be drinking a whole lot of it.”

“Don't worry, by the time I'm done I think you'll be too small for me, not the other way around.”

Discord grinned lasciviously and waded over to the door, his comically large member resting over his shoulder like a rolled-up carpet.

“Hehe, we'll see about that.”

Celestia looked over her shoulder at Discord, who opened the door sending a wave of spunk out onto the corridor.

“Where do you think you're going?”

“All in good time, Celestia. You just occupy yourself here, and I'll be back before you know it.”

Once again, a niggling part of her mind wanted her to question all of this, wondering if Discord's intentions weren't as innocent as they seemed. But a much larger part of her mind (and growing larger all the time) overpowered reason and reassured her that they were both here to just have a great time.

“You'd better hurry, there'll be no room for you in here soon.”

She followed the outline of her hourglass figure with her hands and reveled in the warm, fuzzy feeling at her core. She could feel that she was going to be huge, and couldn't wait.

“Quite.”

He closed the door again and Celestia heard his footsteps fade.

“Time to get big. Well, bigger.”

She knelt down and leaned forward, her huge udders flattening against the hardwood floor. The feeling of her apple-sized nipples being pressed down by her own weight against a solid floor was almost orgasmic in itself, and she was certain that she had already added some of her own milk to the lake of cum from the stimulation. Some of Discord's load had flowed out through the doorway but there was still enough to make her much, much bigger.

That little part of her mind was whispering again, telling her that laying in a puddle of spunk and gulping it down wasn't the done thing, especially for royalty. But the rest of her brain flattened that thought with a metaphysical mallet, and she began filling her cheeks to bursting with great mouthfuls of seed before swallowing it down. Mouthful after mouthful, and there was still so much more.

“No, not there... no... nope... not here either... uhh...”

Discord was in Celestia's private study rapidly sifting through shelves of bottles, vials and jars in the search for something he'd been meaning to get his hands on for a long time. Just as he was about to give up and search the basement, his eyes fell upon what he was looking for.

“At last! Here it is.”

He gently but firmly grasped the heavy vial with both hands. It was cone-shaped with a large, round base tapering up into a narrow neck. The contents were quite unremarkable as far as potions go; a dull blue liquid. On a piece of paper attached to the glass was Zecora's message to Celestia, reminding her what this potion was and what it did.

With one sip enlarge your hips and rear,
Expand your chest and make curves appear,
Or, if taken by the other gender,
Enhance their muscles and augment their member.
But heed my words, do not goof:
Too much and you'll grow through the roof!

“Yes... perfect.”

A small sip of the potent liquid would add a cup size to a female drinker or a few of inches of length onto the penis of a male, but Discord had his hands on a whole litre.

“With this, I'll easily blast my way through that damnable spell and fill her with my essence. She'll give birth to an army of offspring that'll act and think just like me, and we will be unstoppable!”

He paused, and lowered his raised arms back down to his sides.

“Okay, enough of that. Back upstairs we go...”

By the time Discord had left the study, potion in hand, Celestia had gulped down just over two gallons of the hyper-potent semen. After another half a dozen mouthfuls she lifted her head up from the floor, stood up, and flopped onto the bed. She felt incredibly satisfied, as if she'd just eaten a large meal, and rested her hands on her swollen midriff.

“Damn, that was good.”

The buzzing sensation in her core was growing more powerful. She couldn't help but smile at the familiar feeling.

“Ooh, here we go.”

This time, her hips were the first thing to change. They developed rapidly, curving outward and widening to an incredible size; 'childbearing hips' would be an understatement. Not wanting to be left behind, her ass started to gain mass, thickening and pushing outward, slowly raising her off the bed as it became almost completely hemi-spherical, a bubble butt of truly epic proportions. By now her stomach sat higher than her head as her giant posterior rounded out and extended away from her back. She would have sat higher up if her meaty ass wasn't so soft and pliable, spreading out across the bed cover and racing her hips to the edges of the mattress. Her juicy thunder thighs packed on more meat too, pushing against each other almost down to her knees

Her stomach growled noisily as her body continued to process the seed. Next was her chest; the large teats billowed and quivered as they surged out, taking up whatever room was available on her chest and then spilling down her sides. She held her hands out and giggled as the enormous twins rose up to meet them, forcing them aside and continuing their expansion. By now, her nipples were now out of reach, sitting high atop yoga ball-sized mountains of supple, pristine orbs that sloshed and gurgled with their rapidly increasing payload of royal cream.

“My, my... you two are eager aren't you?”

As if in response, her mammaries seemed to redouble their rate of growth. Her entire body began to radiate warmth as it steadily enlarged. Before long, her feet were dangling off the end of the king-sized bed, and then resting firmly on the floor. She pushed her giant tits together and they squished against each other. Already under a lot of pressure, her melon-sized nipples gaped open, twin jets of warm, creamy milk fountaining upward and splashing against her lower body. Tongue out and panting, she gave herself up to the crescendo of bliss and writhed around as her huge boobs vomited great doses of milk up and out. The wooden floor, still stained with cum, was soaked once again as Celestia's cream pooled on top of it.

The bed was rapidly becoming a sofa as Celestia grew taller, wider and bulkier. Her hips were wider than the 80-inch expanse of the bed, and the pillows would barely cover a nipple. The springs inside the mattress began to warp and flatten under her immense bulk.

Despite its great weight and strength, the solid wooden bed frame began to fracture as Celestia approached a thousand pounds.

“Just a little more... mmm...”

She clenched her fists and strained, bringing on another surge of growth. The frame cracked in two and she fell to the floor, the impact jostling her breasts and sending streamers of milk in all directions.

“Ooh yes, I could get used to this...”

She stretched out her arms and found she could touch both walls. As her growth spurt slowly wound down, her feet pushed against the far wall and she had to tilt her head forward a little to avoid the ceiling. Her gargantuan boobs filled her lap, and the remains of the matress had all but disappeared between her immense ass cheeks.

“Fuck, I need to cum.”

She couldn't see her nether regions hidden behind her massive chest but she could certainly feel where it was. Her large clit throbbed angrily as if demanding attention, and she was all too happy to oblige.

“I'm sure you do, but that may have to wait for a while.”

She looked down between her legs and there was Discord, gazing up at her and holding a vial that seemed oddly familiar.

“Goodness, you have been busy.”

She spread her huge legs, presenting her gaping love tunnel to Discord, glistening with her juices.

“You bet. And I'm ready for you now.”

Discord nonchalantly placed the vial carefully on the floor and strolled nonchalantly forward, leaning against one of Celestia's legs and sinking into the soft abundance of thigh flesh.

“Not quite, your Highness. But getting closer all the time.”

With that, he leaned forward and firmly grasped Celestia's basketball-sized clit in both hands. She groaned loudly and reflexively slammed her fist down, shaking the walls.

“Gotta cum... so bad...”

“Patience, Celestia. Patience. Now, let's begin.”

He moved back to where he had left the vial and lifted it up.

“I think I'll need a little more than you since you've got a head start.”

Without hesitation he twisted out the stopper, raised the vial to his lips and began to drink, stopping when roughly a third remained. Then he lowered it and wiped his mouth with the back of his hand.

“Hm. Sweet, tangy. Perhaps a hint of blueberry. Your turn, Princess.”

“What is it?”

“Don't worry, you'll soon find out. And I don't think you'll be disappointed.”

Intrigued and excited, she took the vial from Discord, holding it between her thumb and forefinger. Despite drinking only a third as much as him, drinking the potion when already twenty feet tall like Celestia currently was, the effect would be markedly larger than for Discord.

“Must dash, I'll meet you outside.”

“But how am I supposed to get out? My foot is the same size as the doorway!”

“Patience!”

He broke into a jog and headed for the front door.

Must get outside before it starts or I'll be stuck in here...

Back upstairs, Celestia was feeling a little woozy.

“What in Equestria is happening to me?”

Very soon, she'd have an answer.

“Darn, I swear I took the right turning. I've been here enough times.”

Twilight looked around, trying to see the spires of the royal castle. By now she had resorted to holding up her leggings with her hand indefinitely as they refused to stay up over her ass.

“Ah! Finally!”

Just above the roof of a house at the end of the street was a very tall spire. She started jogging toward it, booty meat jostling in her leggings and her tits slapping against her stomach. As she made her way down an alley between the row of houses, she felt the hint of a tremor beneath her feet. Emerging on the other side, stretching out above and to each side, was the castle in all its splendour. But what caught her attention was the enormous figure in front of it, and getting more enormous as she watched it.

Her jog turned into a walk before she came to a halt and stared.

“...Discord?”

He was grunting and groaning as he expanded in all directions. His left hand was massaging the underside of a rock-hard penis the size of a locomotive, while his right was up in a flex, a bicep the size of a car extending from his thick arm. Dangling in front of his thighs, thick with brawn, was an impossibly huge ball sack big enough to crush a house. And still he grew, far too absorbed in his growth to notice Twilight behind him.

As she came close, he moaned with wild abandon as he surged once more. His feet widened and lengthened, cracking the ground beneath him. She could hear his taut balls gurgle and growl as they flooded with gallons upon gallons of seed, only a few feet from the ground as they finished expanding. But her eyes were drawn back up to his monolithic tower of power, which must have been 25 feet long, just about a quarter of his entire height. A constant stream of pre was gushing from the throbbing head and splattering on the ground at his feet.

“Mmm... yes... seems like I've finished my ascension just in time to enjoy hers.”

Twilight frowned. Who did he mean? Suddenly one of the windows of the castle began to crack, then shattered completely, frame and all, as a huge foot plowed through it accompanied by an effeminate moan in a voice all-too familiar to Twilight.

Oh no...

Beside the window, another huge foot blasted through the wall sending a cascade of dust and debris onto the ground below. With a loud crack, Celestia's head forced its way out of the roof, followed by her shoulders. As her feet touched the ground, she was essentially using the first floor of the castle as a seat. She began to stand, easily pushing aside the walls and roof. The tops of her immense breasts forced their way out, and her super-wide hips ploughed through the rest of the debris. She stepped forward and wiggled her hips to clear off the mess, each giant breast jiggling and wobbling, Twilight's eyes were glued to the 6-foot wide nipples dribbling droplets of milk. Looking over her shoulder, she brushed off the debris that had gathered on the shelf of her enormous ass. Discord hungrily eyed every inch of her gigantic, voluptuous body.

“Oh yes. That size certainly suits you.”

Evidently he liked what he saw, as Twilight was surprised to see his erect shaft tense up even more, the pre gushing from the tip of his giant dick increasing in volume.

Celestia laughed and moved close to him, engulfing his huge shaft in her equally huge tits.

“I could say the same about you.”

He drew her in close and brought her full, soft lips to his own. Their tongues danced as Discord brought his hands down her back and onto her gigantic ass cheeks, groping and squeezing as his hands sunk into the abundance of warm flesh. After a while, thoroughly enjoying himself but determined to push on, he broke the kiss.

“I'm glad you approve. Why don't we get started?”

“With pleasure.”

She turned and bent forward, resting her hands against the roof of the castle. Twilight was stunned by the enormity of her posterior; there was big, and there was BIG. Each cheek could easily seat a hundred people. It was so wide and full that even on her giant body it looked way oversize. The action of turning alone displayed how soft and supple the acres of flesh were, her cheeks rippling and bouncing off each other.

Wasting no time, Discord pushed his cock downward and with both hands guided it towards the massive, sopping cunt on display between Celestia's full thighs. It was a tight fit, but thanks to her huge size and how well-lubricated they both were, foot after foot disappeared into her dipping folds. Her heartbeat increased and the pitch of her moan raised as more of the thick pillar filled her passage. Discord was getting worked up too, the feeling of his immense member being packed into her tight, warm pussy driving him crazy. He drew back, hands firmly pressed against the expansive hips in front of him, and prepared to thrust as hard as he could. But he could swear he heard a voice behind him...

“Discord! DISCORD! What IS this?”

He turned around looked down. Celestia was too absorbed in the mind-blowing sensations inside her to care about her surroundings. All she knew was this was the horniest she had ever been in her life, and that the gigantic cock stuffed deep inside her might just be enough to satisfy the carnal desire gnawing at her being.

“Well well, if it isn't your student, Princess. I'm afraid you're too late, Twilight. The party has already started and we're almost at the big finish. But I'm glad you're here to witness the dawn of a new age of Chaos. Your teacher here is about to be pumped full of tons of my seed, enough for thousands of unstoppable minions that will do my bidding so I don't have to. And there's not a thing you can do to stop it! Nffgh!”

He groaned as an impatient Celestia pushed her hips back, the thick slab of meat spreading her open.

“See? Even she can't wait!”

He responded by thrusting forward as hard as he could, ramming his cock as deep into her as he could as she writhed under him, wailing incoherently. He drew back and thrust again, his giant balls slapping against her thick thighs and sloshing with seed.

Oh gods, what am I going to do?

Closing her eyes and concentrating, she could detect a flicker of magic inside Celestia's womb. There was still a lingering source of magical power, a remnant of the anti-impregnation spell she had cast on herself earlier that day.

That won't be enough to stop the load inside those balls. I'll have to do something.

She gingerly snuck up beneath the sweating, moaning couple locked together above her. A mixture of their juices was oozing down and splashing at their feet, nearly landing on Twilight's head.

As Discord re-positioned himself for a deeper thrust, Twilight stretched up and placed both palms against his warm, billowing sack. Despite his immensity, his scrotum was still sensitive and he detected her touch.

“Oo, I knew you'd come around, Twilight. Enjoying yourself down there?”

She focused, a bead of sweat rolling down her brow as she concentrated with all her might. Despite her prudeness, in her limitless curiosity and fascination with magic of any kind she had indeed learnt a number of sex-related spells. She knew the male equivalent of the anti-impregnation spell, and was able to build onto Celestia's magic with her own, forming an ethereal influence that would, in combination with what was left inside the Princess, would be just enough to prevent the impending tsunami of seed from making her pregnant.

But that alone wouldn't be enough. Discord, not one to give up on a scheme, would keep trying until the barrier wore down. She had to remove his power and take away any chance of this plot from ever coming to fruition.

I'm not sure there's a spell for what I have in mind... I'll have to improvise.

With effort, she was able to trace the influence of the potion Discord had ingested to make himself bigger still coursing through his veins. If she could force that magical essence into his testes and make him expel it, his next orgasm would cut him down to size.

Ngh, almost there.

With one final effort her unorthodox spell fired up through her palms and into Discord. He looked down.

“I appreciate the enthusiasm, my dear, but I don't think you're helping. Shall we try another position, Princess?”

All she could do was mutter incoherently as Discord's thick, long length slid out of her saturated snatch. Irritated at the interruption, she begrudgingly stood up straight and turned back around, juices running down her legs.

Discord laid out on the ground in front of the castle, his towering cock mimicking the castle spire above. Celestia wasted no time in positioning herself above it, and Discord steadied it between his hands. Slowly, she bent her legs and lowered herself onto the monstrous dick.

“Ohhhh shit... yessss...”

Yards of thick, hard-as-steel flesh forced her pussy lips apart as she forced herself down onto it. She felt a pressure in her loins and her muscles clamped onto the meat missile, sweating and straining as she forced it deeper and deeper. Discord could only grit his teeth and snarl as his cock was forced into the tight, hot passage

“Fuck! Yes!”

At last, she was sat on top of Discord's legs, the entire length inside her. She squirmed and wriggled at the feeling of being so incredibly full. With the shortest of pauses, she rose up then SLAMMED back down, her insides stretching and reshaping to cater for every square inch of the cock's immense bulk. She tensed each time she slammed against the base, milking the pre-spurting length and convulsing unintentionally each time it refilled her tight cunt. Another thrust, and another. But still she wanted more.

Discord began to thrust up each time she came down, holding onto her hips and burying himself as deep as he could in the Princess. They both began to speed up as the climax approached, grunting and groaning as Discord's fat pillar pounded Celestia's confines over and over again.

Celestia came first, screaming at the top of her lungs as she felt a knot tie in her core and went over the edge. Twilight covered her ears as the giantess cried with abandon, her pleasure peaking and her muscles clamping down as hard as they could around the shaft. She panted and shuddered as she rode out the orgasm, Discord's thrusts becoming irregular as his own climax approached.

“Here... it... COMES! NNGH!”

He roared as his cock twitched and the head flared. His balls drew in and clenched as they sent their huge load upward, the gush of thick, hot spooge blasting from his tip and flooding deep inside Celestia. More and more of the creamy jizz spurted out in one long jet as he hosed down her insides with his seed.

His balls relaxed briefly then clenched again, a second flood of cream flowing into the Princess and blowing out her stomach. Blast after blast, jet after jet, and still he came. The feeling was incredible, but something wasn't right.

Am I... nff... getting... uhhnn.... smaller?

He was. With each thick rope of jizz exploding into Celestia he got a little smaller.

“N-n-oooo... nn....”

He tried to stop cumming, but his body had taken control. Gallons of jizz kept flowing out as his gigantic balls emptied themselves.

Smaller and smaller Discord shrank, until Twilight couldn't see him underneath the still-huge Celestia.

With one final spurt, Discord's member fell limp, back to its original size. As had the rest of him, for that matter.

“Ungh... curse you, Twilight. I was so close.”

“But not close enough, Discord.”

With barely an ounce of strength left, all Discord could do was follow the guards into the castle and down into its deepest cell. Twilight had made him shoot out all his extra strength, and then some. She turned to Celestia and shouted up to her.

“Uh, Princess? Are you okay?”

She sat back, her giant ass spreading out and nearly plowing into her student.

“Oh, I could be worse. I quite enjoyed all that.”

“Yeah... I could tell. What do we do now? I don't know how to shrink you.”

“I think I do. But I'm still feeling a little horny. Could you give me a hand? Maybe two?”

She laid back facing Twilight and spread her legs, revealing her engorged, throbbing clit and sopping tunnel.

Well, I'd better do as she says. Don't want her to crush me.

She began to walk forward into the canyon between the enormous thighs rising up either side of her.

“Thank you, Twilight. You really are my most faithful student.”