Chapter 1

“What?” Twilight gasped, eyes wide. “You can’t be serious. You want a… a what?”

“Did the Great and Powerful Trixie fucking stutter?” Trixie tossed off her wide-brimmed magician’s cap and let it fly into the crowd. “I want a Magic Duel!’”

“Now, hold on a minute,” Applejack said, shoving her way in between the two unicorns. Twilight took a step back, sighing in relief. Applejack probably wasn’t a serious match for a unicorn as powerful as Trixie, but it never hurt to have six feet of farm-mare muscle standing by her. Against Trixie’s five-foot-two frame, she looked positively imposing. “You got some nerve to come to our town demanding some kinda spell-slingin’ shoot-out with Twilight. What gives you the right?”

Trixie grinned. No verbal response, not even so much as a dismissive noise. Just an infuriatingly smug grin.

Applejack’s eyes narrowed dangerously. “Ain’t even gonna try and defend yourself? Or do y’all just wanna get your sorry ass thrown outta Ponyville?” She punctuated her threat with a good solid jab, square in the centre of Trixie’s chest from an angry index finger, sending the smaller mare stumbling backwards a few steps. Trixie grunted, letting out a muffled ‘oof’, but kept right on grinning.

There was a brief gleam of light from Trixie’s chest. Twilight frowned.

“Right, that’s it. Hup!” Applejack effortlessly hefted Trixie onto her shoulder in a fireman’s carry. “Y’all ain’t welcome here, least not if you’re gonna be stirring up trouble.”

There was another gleam. “Applejack, wait.”

She paused, holding the still-grinning Trixie over her shoulder. “What’s up, Twilight?”

Twilight’s frown deepened. “She’s got something there on her neck.” Not that she wouldn’t have been happy to see Trixie booted out of Ponyville, but something about this didn’t feel entirely right. “Trixie, what are you up to?”

“Why, nothing at all!” Trixie said, mock-scandalized at the accusation. She held up a silver amulet, studded with a single fire-red ruby. “This is just a simple gewgaw, a decoration for my stage outfit. All I want is a very fair, very square, Magic Duel!” She chuckled to herself, as if she’d just said something funny. “And I always get what I want. Now unhand me, ruffian.”

For a moment, Applejack didn’t seem sure what to do. She looked back to Twilight. “Uh…?”

Twilight shrugged. Well, if that was all Trixie wanted… And it wasn’t like she couldn’t magic herself out of Applejack’s grip any time she wanted to, anyway. “Okay, Applejack, you can put her down. No need to get physical.”

“Gotcha.” Applejack set Trixie down gingerly, coughing to herself. A hint of red spread across her cheeks. “Sorry to have, um, gotten so rough with ya. Got a mite carried away, is all.”

“No trouble whatsoever,” Trixie said, brushing the dust from her cloak. “You can make it up to me by stepping aside. Trixie has business to deal with.” Applejack grunted her disapproval, but reluctantly backed off. “Thank you, Jackanapple. Really, Sparkle, you should put more effort into training your pets.”

Twilight suppressed an indignant comeback. “What are the terms, Trixie?”

“The contest is a simple test of raw magical power and of endurance. We take turns casting spells on each other, back and forth. No other restrictions. You can use whatever means you deem necessary to win.” She bowed, a wild and exaggerated gesture. “I’m sure you can guess this, but first to cry uncle loses. That, or being completely incapacitated. Whichever comes first.”

Twilight scoffed. “No deal.” She crossed her arms. “I’m not going to agree to a duel with rules that encourage cheating. Especially against you, Trixie.”

Trixie clasped her chest with another exaggerated gesture. “Why, Twilight, I am shocked and offended that you would accuse me of resorting to underhanded tricks to claim my just victory. But very well, if it will put your mind at ease; I, The Great and Powerful Trixie, will limit myself solely to basic magic. No outside help, just me as I am.” She bowed, again, in the same manner as before. “You are still allowed to use whatever means you deem necessary to best me, but I am limited to normal spells and whatever magical power I can muster.”

Twilight remained hesitant. Trixie was clearly up to something. “Why? What exactly do you want out of this, Trixie?”

Trixie’s grin widened, turning from smug to sinister. “Simple, dear Twilight. The winner takes all the magic–”

“Of the loser?” Twilight recoiled. “You can’t be serious.”

“Oh? Is the great Twilight Sparkle afraid that she might lose this competition in spite of the massive handicap that Trixie has given herself? I seem to recall you thoroughly demonstrating how greatly you outclass me the last time we met.” It was her turn to scoff. “I wouldn’t have pegged a pony capable of effortlessly lifting an Ursa Minor and transporting it several miles out of town as such a coward.”

Twilight bit her lip, keenly aware of all her friends’ eyes on her. She was supposed to be Ponyville’s resident expert on magic. How embarrassing would it be for her – for the whole town’s – reputation if she backed down from a con artist like Trixie? Princess Celestia would be disappointed, beyond disappointed, to hear that her student was a coward.

And what were the odds she would lose, anyway? She didn’t want to brag, but she did know her way around a spellbook. Better, at least, than a unicorn who exercised her mouth more than she exercised her horn. The rules Trixie had set down seemed awfully, suspiciously favorable, but what kind of trick could she possibly pull with those handicaps? Twilight wracked her brain, trying to find a loophole in Trixie’s wording, but nothing came to mind. Maybe Trixie really was so arrogant that she thought she could win like that.

“Alright, Trixie,” she conceded. “I’ll accept, but I want to put one more condition on our Duel: If I win, you won’t show your ugly face around Ponyville ever again.”

“Well, that hardly seems fair,” Trixie said, sounding hardly bothered at all. “But if you insist. Let it never be said that Trixie isn’t as generous as she is Great and Powerful. In fact, I think I’ll allow you the first move.”

Yet another suspiciously generous move on Trixie’s part. Twilight looked her up and down, searching once more for the trick. Besides that gaudy new amulet – probably plastic – she looked the same arrogant blowhard as ever. Even for a stage performer, Trixie was pushing the limits on public decency. She had hardly more than a silver-purple bra on beneath that ridiculous sequined cape, complemented by what had to be a thong. Showing off her body like some two-bit harlot...

As if she had a body to show off in the first place! Trixie’s figure was nothing special. Almost waifish, really. Thin, nigh-bony hips and hardly any chest to speak of. If not for the cape, it would be obvious she was just barely filling out that eyesore she called an outfit. Twilight nodded knowingly. That’s all Trixie was, when you got down to it: a show-off. All flash and no substance.

Still, she didn’t want to be hasty. She’d start off with something small, to test the waters. Maybe Trixie had cast some sort of reflective spell on herself, or some other devious trap. Twilight was a prudent strategist, and the first and best move in any game was to collect more information. A simple force beam would do. She lit her horn and fired off a pencil-thin beam of magic, striking Trixie square in the gut.

“Arrghh!” Trixie screamed, stumbling backward a half-second later. The amulet on her neck seemed to glow as she did so, probably reflecting the light off the spell. “What pain! What agony! Trixie wonders whether she may ever recover!”

Twilight huffed, once again suppressing an indignant comeback. Whatever. At least now she knew that Trixie didn’t have any secret magical defenses. That was all the information she needed from her first turn. “Your move, Trixie.”

“Hmph, no sense of drama.” Trixie once again dusted her shoulders off lightly. “No flair. So dull, Sparkle. Here, let me show you how to put on a real show.” She threw her cape back, the garment fluttering dramatically in the wind, and her horn lit up with a pinkish aura. “Behold!” Her exclamation was punctuated by a series of bright, pyrotechnic flashes, culminating in an explosion of colorful smoke and a dramatic fanfare of trumpets from nowhere.

Trixie’s horn dimmed, and she closed her eyes. “Your move, Sparkle.”

“...What?”

“Well, I cast a spell, didn’t I? That was my turn.” She once again smirked smugly. “Consider it a prelude to the biggest show on earth. Your move, Sparkle.”

Twilight coughed, waving the smoke away as it dissipated. What kind of game did Trixie think she was playing here? How could she be so confident that she’d deliberately waste her first turn? A vague sense of unease settled over her as she met Trixie’s violet eyes. She looked so calm, so self-assured. What was she hiding...?

She shook her head. Didn’t matter. Trixie was still going to lose. She lit her horn again, readying something that would be sure to wipe the smirk off Trixie’s face. A simple force beam would be foal’s play compared to Starswirl’s Disruptive Pulse. “Let’s see how you like this!” The magic buzzed, concentrating in her horn before shooting out as a brilliant burst of energy. It lanced through the air at just below the speed of light, striking Trixie in the chest. Direct hit!

“Oh!” Trixie gasped, her knees buckling slightly beneath her. Her amulet entirely undamaged, despite taking a Disruptive Pulse head-on. In fact, it seemed to be glowing brighter than ever. “You know, I do think I felt that one,” she purred, slipping a hand beneath her overstressed bra, fingers caressing a dark blue nipple. “And it felt fucking good. Are you sure you aren’t trying to seduce me, Sparkle?”

“I… What?” Twilight could only stare as Trixie continued fondling herself. In broad daylight. For all to see. Suddenly her face felt hot, her own nipples hardening beneath her blouse. Goodness, had she thought Trixie was barely filling out that outfit before? It looked now like it could hardly contain her. Was she…? No! She shook her head. “Snap out of it!” It was just a natural biological reaction. Trixie was simply an attractive mare. Of course an exhibition like that would arouse something in her. Probably every stallion in the crowd was popping a boner just watching that. It didn’t mean anything. “M-make your move, already, Trixie!”

Trixie smirked sultrily, licking her lips and giving Twilight a smouldering look. “So impatient, Sparkle. Are you not enjoying my little show?” Her free hand gently rubbed her exposed navel in small circles, before descending to softly caress her inner thigh. “Mmmm, like I said earlier. No sense of drama. Don’t tell me you’re not enjoying this.” Her ministrations on her breast picked up in intensity, and her other hand wandered toward its real target. Fingers traced teasing paths around her swollen cunt, fat blue lips just barely concealed by the glorified dental floss of her thong. Twilight blushed, putting a concentrated effort into staring away. It was definitely several sizes too small for Trixie, strings digging so deep into her supple hips it couldn’t possibly be comfortable.

Trixie moaned, a soft ‘ah’ as her fingers firmly pushed against a dark, glistening spot on the front of her bottom. “Or perhaps you’re angry at Trixie for not inviting you to join in?” She removed her hand from below the belt, holding it out to Twilight. Her fingers shone in the light, dripping with sexual fluids. “Care for a taste, Sparkle?” Twilight’s face flushed, and she darted her head to the side. “I’ll take that as a no. Tch, a prude as well. You’re no fun, Twilight~”

“J-just make your move, Trixie!”

“There’s nothing in the rules that says I have to cast a spell every turn, Sparkle. I’m far more interested in finishing off my little bit of fun.”

“... So you’re forfeiting your turn?”

“To put it bluntly?” Trixie said, magically unclasping her cape. “Yes. Why don’t you take your turn and see if you can get me off before I do, since you’re clearly not taking this contest very seriously? If you were, you would have obliterated me by now.”

Twilight gritted her teeth, a vein pulsing in her temple. Just who did Trixie think she was? Even if she was ‘Great and Powerful,’ even if she had just taken Starswirl’s Disruptive Pulse and gotten off from it? It wasn’t that hot! “Okay, Trixie,” she grumbled. “Fine. You want to get serious? Let’s get serious.”

She closed her eyes, flipping mentally through a cavalcade of spells that could really ruin a pony’s day. She’d held back a little bit last round, just a little. She hadn’t wanted to kill Trixie at first, but now she was having second thoughts. Whether she’d done something to herself or she had some freakish masochistic streak, it was clear that normal spells wouldn’t cut it against Trixie. Instead she’d need to pull out something big. Something like… a Ray of Solar Annihilation! Princess Celestia had taught her that one personally.

Twilight grinned as she focused a tremendous amount of magic at the tip of her horn. The Ray of Solar Annihilation was a special kind of magic beam, designed to be channeled continuously for a solid minute. It was the only transmutation spell one hundred percent guaranteed to turn a target into a smoldering crater, and Trixie was about to regret forcing her to use it. “Say your prayers, Trixie.”

She shut her eyes as the beam reached critical magical mass, scorching the air around her and only gaining in strength as it flew toward its target. Twilight winced slightly as her horn buzzed with feedback, a sign that the Ray had found a victim. Beads of sweat formed on her forehead as she channeled the raw, unbridled magic needed to sustain such a monstrous spell. In only seconds it chewed through all she had to give it, and then some. She could almost feel parts of herself being used to power it, her body seeming less and less substantial, as though she was pouring her own essence into destroying Trixie. But it was a necessary sacrifice. The Ray of Solar Annihilation was the only spell she had that could possibly destroy a pony as devious, as cunning, as Great and Powerful as Trixie.

The spell shorted forty seconds later. Twilight fell to the ground panting, body drenched with sweat. A cloud of dust had settled over the air, obscuring whatever had to be left of Trixie. “That’s…” She gasped for air – even her lungs felt exhausted. “...That’s the end. It has to be.”

“Oh, dear, is it? I wouldn’t have guessed.”

Twilight’s breath caught in the back of her throat. She was imagining things. Clearly, after Trixie had somehow shrugged off the Disruptive Pulse, and after putting so much of herself into the Ray, she was hallucinating a worst case scenario.

“I’m beginning to think that taking your magic when this is all over won’t really be worth it. Not if that’s the most you can muster.”

That had to be it. Even if Trixie could legitimately shrug off a Disruptive Pulse, nothing could take a Ray of Solar Annihilation at point blank range and not be reduced to atoms, let alone come out alive.

There was a gleam of light from within the still impenetrably thick cloud, illuminating only the shadow of… something. It couldn’t have been Trixie. It was some nine, ten feet tall, and that was far too big to be Trixie. It was the wreckage of a house, or some kind of bear even. But it couldn’t have been Trixie. Trixie was many things. Powerful, beautiful, magnificent, but she was certainly not ten feet tall, last Twilight had checked. “Come on, Sparkle. Get up. It’s far too early for this to end. I’ve hardly even doubled in size, yet.”

The shadow moved. Slowly, deliberately, it got closer and closer and closer, until it emerged from the dust.

Twilight’s jaw dropped.

The first thing to jump out at her, somewhat understandably, was that Trixie was, in fact, ten feet tall. Possibly more. She towered over Twilight. Even as Twilight slowly brought herself back to her hooves, she barely came up to Trixie’s navel. The next thing she noticed was that what little clothing Trixie had been wearing was completely gone. Well, mostly - somehow, that gaudy trinket had survived intact. Twilight couldn’t quite figure out from her angle of view exactly how it was staying on, but it was definitely there. Everything else was gone with no more than a few tattered shreds dangling off of her – though whether incinerated by the ray or shredded by Trixie’s swelling figure, there was no way to tell. Her breasts were bigger, too. Proportionally speaking, they had gone up a few sizes. They had been large before, but now they were each around the size of her head, and cast the shadow to match.

“Well, I suppose it can’t be helped,” Trixie rumbled, her face barely visible over the shelf of her expansive rack. Her tits wobbled as she laughed, bouncing and jiggling like the world’s biggest water balloons. “I’ll just have to use my turn teaching you the proper way to end a show. You see, Sparkle, you can’t have an ending...” A force pushed down on Twilight’s head like an invisible hand, her knees bowed ever so slightly until she stood face-to-cunt with Trixie’s crotch. “...without a climax.”

Twilight squeaked, struggling weakly to push her head back, but she was much too exhausted and Trixie’s magic was much too powerful for her to fight. She gagged, lungs desperate for a breath that wasn’t hot and humid, or reeking of Trixie’s arousal. Cerulean blue lips, swollen with need, undulated wetly, waiting almost expectantly for Twilight’s tongue. “T-Trixie,” she stammered as her breathing slowed, her body acclimating to the atmosphere of a massive, horny showmare.

“Trixie…” Oh, Celestia, she was so big now. So sensual, so overpowering. It was almost primal, in a way. The law of the jungle. If an animal as huge and desirable as Trixie wanted something, didn’t she deserve it? Wasn’t it her right, as the obvious alpha mare, to be served and serviced by those beneath her…? She bit her lip, sucking in a line of drool. Wait, what was she thinking? Trixie was the enemy! Some no-talent hack whose only goal in life was soaking up attention. How could she ever be desirable to anyone? “Y-you can’t be serious!”

“Very serious.” Twilight couldn’t actually see Trixie’s stunning face, but she could certainly imagine the grin on it. And she could definitely smell how much Trixie was enjoying this. “I think we both know who the winner of this Magic Duel is going to be, Sparkle. You’re always going on about helping other ponies. Why not help Trixie savor her victory lap?”

Twilight’s mind raced wildly. She wanted this. And she knew that she shouldn’t be wanting this, but that didn’t stop her from wanting it anyway - wanting it more. Why was she struggling? Why wasn’t she struggling more? Her mind was pulled in two different directions, both by her desire to have Trixie and by her rational thoughts loudly telling her that this was wrong.

What ultimately tipped the scales, though, was the lingering thought of the consequences of failure; at first she hadn’t put much stock in it, but seeing what Trixie had become brought back memories of the rules Trixie had laid out; the loser would forfeit her magical power forever.

“You – you used a spell! That means it’s my turn!”

The pressure holding Twilight in place vanished, causing her to fall backwards. Trixie grinned. “And here I thought you were just going to roll over and give up, Sparkle. Maybe this will be interesting after all.” She pushed her already oversized chest outward, a fat, pillowy tit cupped in each palm, practically inviting Twilight to aim a spell downlane. “You’re right. It’s your turn. Go on, Twilight Sparkle. Hit me with your best shot.”

And there was the problem. Twilight had already hit Trixie with her best shot, and it had done nothing. If anything, it had done less than nothing; it had left Trixie stronger and bigger and sexier than before. She had no ideas left beyond stalling for time, and she could only do that for so long.

“Foul! I call foul!” It was Rainbow Dash in the sky, her shouting breaking Twilight out of her lustful funk. “You totally cheated!”

“Cheated!” Trixie laughed. “Why, I’ve never seen such a vindictive audience! It seems Trixie can hardly breathe without being accused of cheating somehow.” Her horn glowed, magic wrapping around Dash’s wings and dragging her down to eye-level. At Trixie’s height, it wasn’t that long a way down. “Tell me, then: how have I cheated?”

“Ain’t it obvious?” Rainbow Dash snarled, seemingly unintimidated by the ten foot tall unicorn. “You’ve been casting some kind of growy spell on yourself every time Twilight takes a turn! I’m no expert, but there’s no way in Tartarus that’s any kind of ‘normal magic.’”

“Well, it’s clear you’re no expert,” Trixie said, releasing Dash’s wings. “A simple scanning spell would show that Trixie has cast nothing but the most basic magic, and only on her turn.” She grinned, shooting Dash a sly wink. “If you really must know why I’m so big, though, why don’t you ask your friend? It was her spells that made Trixie grow so big and…” A moan as she tweaked an engorged nipple. “...voluptuous.”

“What?” Twilight gasped. “I… but… but…” She was so confused and exhausted now that she could hardly put together a proper retort. It couldn’t be true. This whole time she’d cast nothing but spells meant to put Trixie in her place. Her proper place, as the biggest, most beautiful mare in… Her eyes widened as she caught herself. Could it be true? Could she have somehow, subconsciously, cast spells not to harm Trixie, but to empower her? How else could she explain her sudden, overpowering infatuation? That secret desire to give in and submit? Maybe, just maybe, she really had wanted this.

“Mmm…” Trixie groaned, hands increasingly busy exploring her massive form. “Well, it hardly matters to me if Sparkle wants to improve upon perfection, but it doesn’t look like she’s in any shape to take her turn this round.” Her horn flashed. Dash vanished into thin air, reappearing a second later between Twilight and the amazonian Trixie. “You talk awful big, for a talentless little pegasus, so why don’t you take Sparkle’s turn for her? The rules do allow her to use any means necessary.”

“Oh, what’s that? You wanna lose?” Rainbow Dash grinned, and Twilight groaned internally. If she didn’t know Dash quite as well as she did, she would be begging her to stop - Trixie clearly wanted this. There was something wrong, even if she couldn’t put her finger on it, but regardless of it was, playing along with the duel clearly wasn’t working.

But she knew Dash plenty well. Well enough to know that there was no chance that anything she could say would deter her friend from making a stupid decision. Still, she tried, her throat barely managing to rasp out a weak “Rainbow, no…”

“Alright, you asked for it.” In a rainbow blur, Dash zipped through the sky, gathering clouds together into a singly fluffy mass. As she stuffed more and more clouds into the pile, the whole mass darkened until it was nearly black, sparking ominously with electricity. “One big-ass lightning bolt to the face, coming right up!”

“Bring it on, shrimp.” Dash’s fur bristled at Trixie’s taunt, and Twilight suppressed a groan. “Maybe The Great and Powerful Trixie will actually notice your efforts.”

Dash shook with barely contained rage. “Fine! I wasn’t gonna do it, but if you want to eat a zapping, I’ll deliver.” She zoomed upward until she was barely visible against the clear blue sky. “Your order in thirty milliseconds or less!”

A blink of the eye later, she’d slammed into the stormcloud, and everything burst into light and sound. A thunderclap shook the whole town as the lightning bolt struck Trixie, blindingly bright. A direct hit. Twilight winced, not daring to look. A direct hit. Oh no.

And there Trixie stood, at the center of a ring of ash, a grin slowly spreading across her face. “Ooh,” she moaned, licking her lips in anticipation. “That was good.” This time, Trixie surged, one hand clutching a blossoming tit, the other sinking knuckles-deep into her soaking netherlips. Far from humbling her, Dash’s lightning bolt had only further provoked Trixie’s growth, stacking inch after inch of beautiful blue unicorn onto her already imposing figure.

“Mmm…” Trixie’s fingers quickened as her growth slowed, her gleaming-wet pussy dripping like a leaky faucet. She switched hands, savoring her own taste with a slow lick across her fingers. “My compliments to the chef,” she purred. Trixie turned her eyes upward, to where Rainbow Dash was watching transfixed. “Well? Get Trixie another!”

Dash’s face lit up red. “What? B-but… But I…”

“Another!” Trixie rumbled, horn aglow. The magic forced Dash into an about-face, giving her a light pat on the rump to speed her along. “And that’s an order, pet.”

“Y-yes, ma’am!” Dash squeaked, giving a shaky salute. “W-whatever you say, ma’am!” Her wings snapped to their full length, rigid and quivering. An innate respect for authority, twisted into obedience before an utterly dominant Trixie. She took off in a flash. “You want another, you’ll get another.”

“What on earth is goin’ on in that mare’s head?” Applejack said, half to herself. She scratched her head, bewildered. “This ain’t like her.”

“I don’t know, darling,” Rarity said, rolling her eyes in an exaggerated motion. “Hers is the hardest head in Ponyville. I can see her reacting to a plan failing by trying the same thing again only bigger.”

“Only bigger,” Applejack murmured, licking her lips. “Wouldn’t want that to happen now, would we?”

“No,” Rarity replied, her dainty hand trailing down her midriff to the hem of her skirt. “We certainly wouldn’t.”

Rainbow Dash was a blur, canvassing the sky above Ponyville in a wild, seemingly random fashion. Every cloud in the sky, she gathered into the town square. And then, when that proved inadequate, she expanded her search to include the sky above the Everfree. The clouds there were bigger, dark and angry and wild, black as night and heavy with rain, and - more importantly - with lightning.

But it still wasn’t enough. The rainbow blur darted into the weather patrol’s offices and emerged lugging an absolutely massive box. “What we have here,” she said, voice straining with effort, “is Ponyville’s cloud supply for the next three months.” She dropped the crate, a resounding THUMP echoing through the town square. Rainbow Dash lifted off again, hovering over the cloud crate. A crazed grin was plastered on her flushed face, and one of her hands was inside her shorts, massaging a conspicuous dark spot. “You want more? How’s this for more?”

With that, she kicked the box, hard, and the top burst off, unleashing a seemingly endless torrent of cloudmass. Dash blurred again into a colorful streak, funnelling the clouds into the center of the square. The air crackled with static as ever more energy condensed itself into Dash’s supercloud. The gathered ponies squirmed uncomfortably, all of them wary of the building storm overhead – except one. Trixie stood alone just beneath it, her arms outstretched, inching bigger just by feeding off the ambient power. Her face was frozen in pure bliss, thick blue nipples standing longer than Twilight’s thumb and hard enough to cut diamond. Her low, rumbling moans reverberated throughout the whole town, and even with all that power, her eyes were locked expectantly on the cloud, eagerly awaiting her next growth spurt. Twilight had already made her the greatest, most powerful pony in Ponyville. Now all she needed was Rainbow Dash to crown her as a proper goddess.

Twilight took a step backwards. “Oh. Um. Oh dear,” she muttered. Looking around, everypony’s eyes were glazed over, staring mindlessly at Trixie. Fluttershy fidgeted, her face flushed bright red and her tongue lolling out lazily. Applejack had one hand shoved under her dirty white tank top, and the other into her jeans. Rarity stood, arms rigidly by her sides, her horn glowing dark blue, pulsing in time with sensual moans. “This is, uh...”

“Wheee!” Pinkie Pie tore off her blouse and skirt with one swift motion, leaving her completely nude. “C’mon, Dashie, hurry up!”

Twilight stopped, turned, and ran. She ran as fast as her legs would take her, fighting her body’s every impulse to stay and watch Trixie become truly all-powerful. A voice in her head, mad with lust, screamed at her to turn around, to pour even more of her magic into Trixie. Her new duty in life was to fuel the Great and Powerful Trixie’s next mind-blowing orgasm, feeding her mistress more and more and more and more and- Twilight shook her head in a vain attempt to clear the lustful fog that enveloped it, and continued running. Her basic, most primal instinct to survive was shouting to get as far away from Trixie as she could. And even further than that, if possible.

She’d made it all the way to the outskirts of Ponyville when the mother of all thunderclaps burst in town center. Windows shattered, the ground shook, and even as far away as she was Twilight felt rattled to her core. Then followed Trixie’s screams of pleasure, almost as loud and growing even louder. It wasn’t long before Twilight could see Trixie’s silvery mane peeking over the rooftops, followed by her gorgeous, goddesslike face. Even in orgasm she looked positively radiant, hands pawing madly at tits approaching house-size, desperate to squeeze every last drop of satisfaction from her climax. “More!” she shouted, and then again, louder; “MORE!”

“There, uh, isn’t any more, ma’am.” Rainbow Dash sheepishly scratched the back of her head, perched atop a roof to speak with her new mistress face-to-face. “That was every cloud in the greater Ponyville area. I’d have to go all the way to Hoofington at the closest to get more. And that’d take too lo- lo- looooooooong,” Rainbow Dash’s speech trailed off into a lewd moan as she fell forward onto her knees, and then backwards onto her ass, legs spread wide and hands furiously working her dripping pussy.

“Mmm, so what you’re saying is that you’re ending your turn?” Trixie purred. Dash didn’t respond, her mind lost to lust as she relentlessly fingered herself. “Gooooooood. I’ve got all this new power to play with,” she cooed, gently rubbing the amulet. It had grown with her, and was now embedded into her flesh, nestled right above her titanic cleavage. “And where’s the fun in not giving it a test run? Mmmm, watch in awe, Ponyville. It’s time for the Great and Divine Trixie to really show off.”

Her horn ignited, enveloping her body in a dark red aura. Her hands caressed her body, starting with the swell of her stupendous rack, lingering on her powerful abdomen, and finally settling at the plump mound of flesh just above her cunt. And they brought the aura with it, condensing and intensifying the glow until it was an almost blinding light centred right where her hands were massaging. “Mnggggg, that feels good, but it’s not enough. A disappointing use of a turn, for now.” She sighed, a grin forming on her lips. “But how shall Twilight Sparkle spend hers? It doesn’t seem that she’s here right now, so I suppose it falls to me to choose a volunteer in her absence. You.” She pointed into the crowd, the amassed ponies parting to reveal a terrified Fluttershy. “Here. Now,” she commanded, pointing at the glow.

“Oh. Um, yes, m-mistress Trixie. R-right away.” She nervously took off, hovering her way to her goddess’s crotch. “Um, what do you-”

“Clothes off.”

“Oh,” Fluttershy breathed. “Yes, Mistress.” She reached down to the hem of her sweater, pulling it up and over her head to unleash her own sizable tits. Next was her skirt, eased carefully off her flaring hips, followed by her stained panties. Her face burned with embarrassment as she hovered in the air, nude in front of every pony in Ponyville. Oh, yes, it was shameful to show off her big, naked body, but it was wonderful at the same time. She’d never really believed those ponies who’d said she had the best figure in Ponyville, and now standing next to her goddess, they could finally see just how much bigger, more luscious, Trixie really was. And she, of all the ponies who could have been chosen, had been called on to service Trixie. The thought of that alone made her positively gush, robbing her of her breath. “What an honor.”

Trixie stared approvingly, licking her lips as her vision bored into Fluttershy. “Yes, you’ll do. Now,” she pointed at the glow. “Pleasure me. Now.”

Fluttershy trembled with anticipation as she flitted closer toward Trixie’s pulsating folds, the hot, humid atmosphere of her mistress’ arousal filling her lungs, shoving every other thought out of her head. She resisted the urge to moan, to give into simple primal lust and pleasure herself to Trixie’s overwhelming presence. Her goddess had given her a job, and her sole obligation was to complete it. Pleasure for herself was nice, but pleasure for Trixie was heaven itself. She took gentle landing on Trixie’s glowing mound, giggling to herself as the magic ran through her like its own gentle massage. How wonderful! And this was only the barest hint of Trixie’s power. Her eyes widened as her mind raced with possibilities, dreaming of all the things her goddess could do now.

“You don’t have to wonder, pet,” Trixie purred above her. “Here, have a taste.”

Fluttershy groaned as the magic raced up to her breasts, engulfing her sizeable rack in Trixie’s scarlet aura. Meanwhile, something thrummed up from the warm blue flesh beneath her hooves. Tremors hinting at what was to come. She groaned as her chest ballooned outward. Tits that had always put her friends to silent, seething shame doubled in size, then doubled again, just in time to meet the leviathan cock rising between Trixie’s legs. It throbbed powerfully between her tits, sending all kinds of good vibrations through her ever-so-sensitive mounds. And at the base of her jiggling, bean-bag-sized breasts, she could feel Trixie’s heavy balls pushing her upward, gurgling and churning as they filled with a lake’s worth of thick seed.

“Mmm, oh,” Trixie moaned, tracing a finger proudly around the flared head of her new equipment. Droplets of musky precum, the size of Fluttershy herself, were already running down her shaft, baptizing her pet in the warmest and stickiest way possible. “Very good. But still not enough.” She pointed absently to a few earth ponies in the crowd. The farmer pony Applejack, and a few of her inbred cousins no doubt. “You, you, and you,” she murmured, even her faintest whisper loud and clear to the tiny ponies below. “Assist her.”

She groaned again as a trio of ponies attended to her burgeoning balls, kneading, sloshing, and worshipping them as if they were all that mattered in life. “Not bad,” she sighed, her amulet aglow as the earth ponies’ strength flowed into her, pumping her with still more size, even more divine appeal. It was a wonder that they weren’t creaming themselves at the mere sight of her, but just a little more magic, and they would be. “Keep at it.”

Her baser needs seen to by her loving servants, Trixie had time to let her attentions wander. Oh, this was her town now! More and more hers with every shove and caress from her earth pony attendants. A warm glob of pre welled from her newly-grown cock as she imagined herself even bigger, looming over Canterlot itself. A true goddess to reign over all Equestria. Backwater hicks made acceptable pets, but oh how much sweeter it would be when Celestia herself was a slave to her desires, barely even the size of her own nipple.

And speaking of Celestia, where was that student of hers? Twilight Sparkle seemed to have scampered off somewhere, like a mouse afraid of the big, bad pussycat. It didn’t matter to her at this point - she’d more than assured herself victory in their little magic duel - but she wanted to rub it in more. She wanted to see Twilight, once so high and mighty, falling over herself to surrender and worship her. Gushing with praise for the Great and Divine Trixie… not to mention something a little stickier.

“How shall I find her, though?” Trixie mused, reclining back into a little house. “A searching spell? No, too easy. A challenge? Not again.” A shudder ran through her body as her swelling balls overtook her tiny servants, all the earth ponies’ strength only barely enough to hold up her titanic sacks of seed. “Oh, of course,” she chuckled, beckoning to some more ponies to help - and contribute their magic to her in the process. All she had to do was wait and grow, and soon enough there would be no place in Equestria for Twilight to hide.

Chapter 2

Twilight couldn’t help but feel frantic. If she couldn’t find some sort of counter to whatever it was Trixie had done to herself, then, well, she didn’t feel comfortable considering the worst case scenario. This whole situation was already a worst case scenario, she mused. She could faintly hear low rumbling noises in the distance, and tried very hard not to acknowledge that they were the sounds of Trixie getting bigger and bigger and bigger and bigger.

She gave herself a light smack, enough to shake her mind from that train of thought. As much as she didn’t really want to shake her mind from that train of thought, she was lucid enough to realize that the fact that she really wanted to return to Ponyville and get back to work was a very bad sign. The fact that she thought of pumping more and more magic into Trixie, making her bigger and stronger and more impossibly beautiful than she already was, as work was probably an even worse sign. Her face flushed as she turned back to the task at hand, thoughts of Trixie stubbornly lingering in the back of her mind as she surveyed her hideout.

The Everfree Castle wasn’t exactly the most comfortable place. Anything that wasn’t cold, hard stone had long since rotted away in the thousand years since it had been abandoned in favour of Canterlot. There were some sundry remains here and there - damp carpets, tattered tapestries, and of course the library. It had nothing on the Great Canterlot Library, but it would have to do. Canterlot was a day’s journey away by train, two on hoof - and she’d have to walk if she wanted to make it. Trixie could grow faster than that, and who knew how much bigger Trixie would get herself in that time? The last Twilight had seen of her, she had already started to dwarf the buildings of Ponyville.

In two days, she could very well dwarf all of Equestria.

And that would be just terrible.

Another light smack. Now wasn’t the time to get distracted. As reluctant as she was, allowing Trixie to get any bigger wasn’t an option. She squirmed. Right now she didn’t have much in the way of options. She could make the journey to Canterlot - the Great Canterlot Library almost certainly had the information she needed to put a stop to Trixie, or at least figure out what was going on - but Trixie could very well have conquered the world by the time she got there (which would be oh so terrible focus dammit). Perhaps Zecora knew something about what was going on, and could make some kind of alchemical shrinking potion. But if Twilight was susceptible to whatever mind control magic Trixie was using to encourage people to make her bigger, so was Zecora. For all she knew, Zecora was already brewing up a cauldron full of growth potion in the just crusade to please the Great and Divine Trixie no stop that.

Or she could hope that there was some information in the meagre library left in the Everfree Castle. She grabbed a moldering book off the shelf, Magic and It’s Effects written in faded lettering across its spine. “Well…” She scanned the shelves, praying to find something better without an obvious typo in the title, but none of the other books looked any better. Dictionaries, entomology textbooks, and pop-up childrens’ books. At the least the one she was holding now seemed vaguely related to her problem.

“If I have to,” she sighed, taking Magic and It’s Effects over to a desk. A few not-too-shabby pillows, a couple of the more useless books for support, and she’d managed to make her own comfortable study spot. She opened up the curtains on a nearby window, hoping to get some extra reading light, and immediately realized her mistake. The window looked out in the direction of Ponyville, and the increasingly enormous mare dominating its horizon. She bit her lip, briefly transfixed by her view of the beyond-massive Trixie, now stroking a dark blue shaft the size of Ponyville’s clock tower. Tiny pinpricks of light struck Trixie’s chest as unicorns poured their magic into her, swarms of pegasi buzzing eagerly around her hill-sized tits.

“I should close that window,” Twilight muttered, struggling to tear her gaze away from the spectacle. A hand ran down beneath her skirt, teasing her swollen pussy through her soaked-through panties. She sighed. “I should… Should really... “ No. She shook her head, finally looking away. The window had to stay open. She needed the light, and it would be good to keep an eye - or maybe both of them - on her enemy’s progress. At some point, she simply had to trust in her own self-control.

Hopefully that wasn’t her libido talking. She sat down, wiggled herself into the cushions to get comfy, and began reading. Eyes, trained for years to drink in text and soak up knowledge, scanned over the pages. This was it. This was her element. If she couldn’t beat Trixie by slinging spells, she could certainly do it by studying. The first chapter was useless, a beginning tutorial on spells to clean bathtubs. The second chapter was much better, discussing magic sponges that drank in magic and grew in proportion to their intake. Aha! She grinned, eagerly flipping pages. This sounded promising.

“Oh yes, mmm, more…” A blush spread across her face as Trixie’s moans rumbled through the castle. Her eyes wandered briefly up from the page, daring another glance at the goddess through the window before snapping back to the text. She was so big now that there was really no escaping her. If you couldn’t see Trixie – yet – you would certainly hear her, the quakes of her arousal rippling outward across Equestria. And it wouldn’t be long before Trixie herself followed. Twilight shuddered as she imagined Trixie growing big enough to reach the castle in a single step, her over-ripe sack dwarfing the whole structure, cum streaming in thick rivers down her shaft and leaking through the roof. It wouldn’t matter where she ran to escape Trixie then. A single pre-orgasmic spurt would be more than enough to flood the whole castle. Eventually, and sooner rather than later, Trixie’d be too big to ever dream of stopping.

Which, she thought as she slapped herself again, was why she had to hurry. Her hand hovered over her damp panties, quivering slightly as she read the chapter in more detail.

“What,” she read aloud in an attempt to drown out Trixie’s distant moaning, “exactly, is a magic sponge? Despite the name, it has nothing to do with cleaning! At least not directly. A magical sponge is an object that, for whatever reason, absorbs ambient magic. Typically, the object will increase in size as magic is absorbed.” Nothing directly relevant, but Twilight wasn’t going to let that deter her. She began to skim, and skim, and skim, and nothing came up. Dejected, Twilight flipped back to the beginning of the book, hoping to find something useful in the table of contents.

“Chapter one, Introduction to Bathroom Magic, no. Chapter two, Magic Sponges and Their Many Uses, no. Chapter three, Basic Spelling, probably useless. Chapter four, How to Defuse Any Magical Bomb, no. Chapter five, Advanced Bathroom Magic, no. Chapter six, A Presentation of Prestidigitation, no. Chapter seven, Bullshit Fetishy Artefacts?” It couldn’t be that easy, could it? She flipped through the pages, stopping when she reached chapter seven.

And there, right on the first page, was the necklace Trixie had been wearing. “The Alicorn Amulet is a powerful sexual artefact that can have many effects, all of them titillating.” Ugh. It read like something out of a really poorly scripted porno. Twilight frowned and kept reading, trying to ignore the fact that Trixie’s moans were getting louder. More intense. Her breathing quickened as each moan made the air around her vibrate. The air around her was heating up – from either her own arousal… or Trixie’s. Either way, she was running out of time.

“Okay, so the Alicorn Amulet. Powerful magical conduit, deeply ingrained in the fabric of reality… Was originally designed to help its creator cheat in a magical duel! Yes, there we go! Useful information, finally!” Twilight grinned, her hand drifting back to her crotch. Everything was clicking into place. The Amulet magically enforced the rules of a magical duel. More specifically, it enforced the specific letter of the rules, as laid out before the duel officially began. The original creator of the amulet had worded the terms of the duel creatively to give himself an advantage, but that didn’t feel like Trixie’s plan, especially going over what she remembered of the terms of the duel.

“I’m allowed to use whatever means I deem necessary,” Twilight repeated, recalling Trixie’s words, “but she’s limited to normal spells and whatever… magical power… she can muster.” Her eyes snapped open. Of course! Trixie had not only exploited the Amulet’s power to enforce the rules, she was also twisting its rule-enforcing powers to use it as an exceptionally strong magical conduit. Channeling, directing, and amplifying all magic used in the Duel straight into her own body! No wonder! The more magic she, or anyone acting on her behalf, used, the more Trixie would grow, taking that magic to use as her own! And, presumably, that also extended to the mental effects Trixie had on other ponies. And, now that Twilight knew how Trixie was doing it, she could stop it.

Twilight closed her eyes and lit her horn for a few moments, before she felt a weight lifting off of her shoulders, taking her unnatural urge to worship Trixie, to feed her magic, to make her bigger – all of it was gone, leaving only the lingering arousal. “That’s the mind control dealt with, at least. Doesn’t stop Trixie, but at least I can think clearly now.” Well, more clearly – Twilight was still very, very horny, but now she could satisfy that with a quickie instead of feeding Trixie even more magic.

Hopefully her arousal hadn’t caused her to miss anything obvious, but already she was starting to piece together Trixie’s plan. More magic, more growth, more worship. Infinitely, for as long as the Magic Duel went on. If Twilight never lost, Trixie could always just appoint substitutes to feed her instead, tapping new sources of magic to boost her to ever greater heights. And because of the wording of the rules, anyone could be her substitute. Not just her friends, not just the whole town of Ponville, but any and every pony in Equestria. Including the princesses.

She shivered. If this Duel went on much longer, there was a very good chance that Trixie would become a genuine goddess. “But how do I stop her?” She buried her head in her hands. Knowing all of this was fine and good, but none of it presented a solution. There wasn’t a source of magical power in the world that wouldn’t just make Trixie bigger. Even if she surrendered – always a possibility, she supposed – Equestria would still be facing a pony nearly as large as a mountain.

“Ooh…” A colossal moan shook the castle. Scratch that. Equestria would be facing a Trixie exactly as large as a mountain.

And yet, that would still be better than an infinitely powerful Trixie, swollen with all the magic in Equestria put together. If she could put a stop to it all, or even just delay Trixie slightly, by giving up her own magic… wasn’t it her duty to do that? There was no choice, really. The rules of the duel were too restrictive, too simple. Even if she could somehow face Trixie fairly now, without powering her up, it wouldn’t matter. Trixie’s most basic spells were still several orders of magnitude more powerful than anything she could muster. Truly, it was hopeless. There was no weapon she could use, no secret spell strong enough, not even a loophole in the rules that would allow her to–

Wait. She mentally ran over Trixie’s wordings again, recalling exactly the rules set for the Duel. Rules that would be enforced, to the letter, by the Alicorn Amulet. A grin spread slowly over her face. “Yes,” she whispered, looking out the window and gazing at the massive blue unicorn beyond. “I think that would work.”

“Hm. I wonder if I could give a little bit of my magic to somepony else,” she mused. “I mean, it’s mine. I won it, I can do what I want with it, right?” She focused on the pink dot, smiling as new fantasies began to take shape. “And being a goddess on my own would get lonely after a while. I’m sure there’ll be enough space for five more...”

Chapter 3

Trixie lounged. A smaller, more insignificant pony might have said that she loomed, her immense form dwarfing Ponyville’s tallest structure, straining even the limits of the mountain she was reclining on… but in the eyes of Great and Divine Trixie, she simply lounged. She stretched languidly, yawning. “Mmmm, becoming a Goddess is surprisingly tiring work. But it’s my turn, and I choose to use my turn to take...” another yawn, “...a nice little break. Mmm, yes, a little lower.”

“Yes, mistress,” came a chorus of voices from between her legs. A half-dozen pegasi – no other ponies could reach at that point – shifted down a few more feet, licking and stroking just beneath the shelf of her medial ring. Below them, a crowd of earth ponies, busy with the full-time task of massaging her house-sized balls. Ample streams of thick Trixie juices rolled in from above, supplemented by Fluttershy’s leaking milk factories. The goddess had long since outgrown the need for her pet’s tits, but she still enjoyed the soft, pleasing warmth they provided.

“Aaaah…” The mountain rumbled worriedly beneath her as the unicorns blasted her with another shot of magic. The amulet, nestled cozily between her truly massive breasts, glowed softly as it converted everything into even more size, still more magic for Trixie’s vast reserves. “A good use of a turn, Twilight,” she chuckled as Ponyville shrank ever smaller beneath her gaze. Soon enough, she realized, she’d be able to straddle the whole village. The thought turned her on almost as much as the whole village’s efforts to please her, a shiver of excitement running through her spine. “Keep it up, and you may beat me yet.”

She did wonder idly where Twilight had gone, exactly. Spending a turn on a simple scanning spell would have confirmed it easily, but she almost preferred the mystique of it. Imagining Twilight fleeing worriedly to the ends of Equestria, doubtlessly aware that soon Trixie would be bigger than Equestria, and far more beautiful, too. Perhaps Twilight had already given into her lusts, moaning Trixie’s name as her mind filled with fantasies of her greater, more powerful nemesis. That would be delicious. She bit her lip, worshippers shouting in surprise as fresh rivers of precum ran down her shaft. The temptation to go find her, to lord her new size and power over an antlike Twilight, was powerful. But she resisted. It would be all the sweeter when Twilight returned willingly, begging to feed her, desperate for the opportunity to further her goddess’ pleasure.

And anyway, it was her turn. “I suppose I could just forfeit again, but where’s the fun in that, now? Hm, but if I don’t want to forfeit, and I don’t want to find Twilight, whatever shall I do?” She placed a finger to her lips in an exaggerated motion. “How about you, pets? Do any of you have any ideas?” The only response was a faint moaning from the enormous mass of titflesh that Fluttershy had become. “An excellent suggestion, Slutterby! Giving Twilight’s friends a taste of my new power would be deliciously personal. But who to start with? I’ve already made you my Royal Titfucker. Perhaps I should reward the Rainbow one for that storm earlier. It was, mmm, quite delicious.” She licked her lips. “And she should be punished for her failure to create an even bigger storm.” She snapped her fingers, the booming sound echoing for miles. “You heard me, pet! To me, now!”

After a few moments, Rainbow Dash erratically fluttered her way to her mistress’ face. Her wings were rigid, shaking slightly with arousal, along with the rest of her body. Every other pony in town was also deeply under Trixie’s spell, but stubborn, single-minded Dash had it worst of all. The definition of everything awesome in her mind had been hardwired straight to her mountain-sized mistress, and even the slightest hint of praise from Trixie’s lips was good now for another orgasm. “Y-yes, ma’am?” she breathed shakily, soaked in everything from sweat to her own juices. “You called?”

“What do you think, pet?” Trixie purred. “Should I reward you? Or punish you?”

Rainbow Dash groaned in response, eyes rolling into the back of her head as she came just from the sound of Trixie’s voice. She gurgled slightly, tongue lolling out of her mouth as she twitched. “Ghaaaaaa fuuuuuuck yesssssssss~”

Trixie sighed. “That wasn’t a yes or no question, pet. I suppose that means you want me to punish you, hm? Willfully disobeying your mistress in order to provoke me? Is that it, pet?”

“Ye-hesssss! Punish me! Reward me! Change me! Make me huge or give me a cock or huge tits like Fluttershy or turn me into an enormous fucking dildo and use me to pleasure yourself! Turn me into a dog so I can be your bitch in heat! Fill me so full of your cum that I fuckin’ pop! Use me! Abuse me! I don’t care! I’m your fucking plaything!”

“Well!” Trixie’s horn glowed a scarlet red, a grin spreading across her face. “Since you asked so politely, pet, I suppose I do have a few gifts I can bestow upon you…” The magic concentrated at the tip of her finger, more than enough to suffuse Dash’s whole body with her divine power. The finger advanced slowly toward her, Dash’s eyes following it like a dog’s would a steak. Oh, yes, she wanted this. Twilight was a nice friend and everything, but only Trixie could give her the stuff of her fantasies.

“Not so fast, Trixie!” At first Trixie didn’t seem to have heard, so huge that a single pony’s voice down near her hooves could barely reach her ears. Then she yelped as a ray of purple magic shot up into her chest, the force of it almost enough to jiggle her tits. It didn’t hurt at all, of course, but it was strong magic. Easily enough to send her a dozen feet up. “Oh, yes,” she groaned, the spell fizzling at her fingertips. “Who was that? Step forward, pet. Trixie wants to reward that one.”

Her eyes glanced off a disappointed Rainbow Dash, down to the crowd fervently worshipping her. There, standing just slightly apart from her devoted pets, was a rather defiant-looking Twilight Sparkle. “Aha!” Trixie laughed. “Twilight! How good of you to come back and finish our duel. The Great and Divine Trixie had almost thought you were afraid of her great magical prowess, or perhaps too awed by her radiant beauty to show your plain face. Are you ready to surrender, then?”

“Not just yet.”

Twilight’s face wore an oddly disconcerting smile. Something about it made Trixie pause. At her size now, Twilight should have been falling over herself to give up. A glint of lust still shone in her eyes, true, but… not for her. Absently she rubbed the Alicorn Amulet, as if checking to make sure it was still there. Whatever Twilight was doing now, it didn’t make sense.

Still, no matter. Twilight was a flea now. Less than a flea to her. In fact, it was better this way. Twilight could remain defiant to the very end, her confidence draining with every new spell she fed Trixie. Perhaps she was even going to try using the Elements of Harmony! The most powerful source of magic in all Equestria. Trixie nearly came just thinking that. If she was merely big now, a blast from the Elements was bound to make her titanic!

“From what I can tell,” Twilight said, “it’s my turn now. But before I take it, I just want to ask you a single question, Trixie.”

“Oh?” Trixie cocked her head. It didn’t matter what Twilight asked. Even if she already suspected something about the Amulet’s powers, it wouldn’t help her now. “And what’s that, Sparkle?”

“What would I call my father’s brother?”

“Your father’s… brother?” Trixie had to stifle a laugh – best not to deafen the little pets. Still, what a stupid question! Twilight could have asked her anything, anything at all, and she chose this joke? No wonder she was back for another round! Only an idiot would even think of asking something like that. “Well, I’d think even you could guess that one, Sparkle,” Trixie said confidently. “Uncle!”

Twilight’s grin was wide enough to split her face. “Yes, Trixie,” she said, nodding. “That’s exactly right.”

Too late Trixie realized what had happened. Her eyes widened, a window-shattering squeal escaped her throat. The Alicorn Amulet felt searingly hot against her skin, glowing ever brighter as it concentrated all her stolen magic within itself. “Loser is the first to cry uncle!” she gasped. “No, stop! I’ve been tricked!”

But there was no stopping the Amulet now. In a blinding flash of light, visible for miles around, the Alicorn Amulet shot out a rainbow beam. A blast of magic containing nearly all the magic Ponyville had to offer; its target: Twilight Sparkle.

It felt good. REALLY good. Like she was being filled with… something. Something warm and soft and big. So very big. So very full. Bigger and fuller and bigger and fuller and bigger and fuller and BIGGER and FULLER and – Twilight gasped as her sensible white blouse was the first part of her outfit to go, the fabric shredding against a wave of purple titflesh. Her breasts were, after all, much larger than Trixie’s had been before she started growing, so it only made sense that she would reach that point sooner. Trixie stammered incoherent excuses, begging no one in particular to please, please, just let her win. She was supposed to win, dammit! Twilight tuned her out, focusing instead on the pleasure of her own growth. She grunted as she felt her panties snap, and then her pants following suit, unable to contain her massive form. Massive and growing. She only dimly registered the actual process, too lost in the sensation of it, the raw pleasure of growing bigger and bigger and bigger.

She was vaguely aware of Trixie, slowly returning to her normal size slightly faster than Twilight was growing. Of her friends, now free from Trixie’s mental manipulations. Of a very flustered Fluttershy. And a somehow even more flustered Rainbow Dash – “Okay, no one heard that stuff I said to Trixie, right? About being a bitch in heat and stuff? Right? Because I didn’t actually say anything about being a bitch in heat to Trixie and anyone who says otherwise is fucking lying to you.” Applejack was standing at Trixie’s hooves, a furiously blushing Rarity right beside her, the two ponies hurling very loud and angry words of general abuse at the shrinking unicorn’s diminishing ballsack. And Pinkie Pie was-

“Hey, Twilight! I’m just gonna ride your shoulder while you get bigger, ‘kay? Awesome!”

Pinkie Pie was being Pinkie Pie. Twilight ignored her (she was somewhat used to that at this point) and basked in the warm feeling of all of Trixie’s magic flowing into her. Suffusing her being. It felt… nice, really. Like a full-body massage, her nipples hardening deliciously as her sensitive breasts blew up bigger, fuller. A hand wandered down to her fat, dark purple lips, finally ready to satisfy her own burning arousal. Sure, she was putting on a show for the whole town, but she needed this. Having resisted the lust-inducing effects of Trixie’s magic for so long, she deserved it. And with her body rapidly approaching the size of Ponyville itself, nobody was going to argue that.

Twilight groaned as she finally reached Trixie’s old height, sitting just a little taller than a mountain… and kept growing. Just as Trixie’s magic seemed to have gone dry, a thousand smaller pools opened up to her, fueling her growth even further. “Huh?” she looked around. “Shouldn’t… shouldn’t I have stopped?”

“Why would you, silly?” Pinkie Pie laughed in her ear. “Don’t you remember the rules?”

“Um…” She tried to recall the exact terms of the Magic Duel. All the costs of losing, and the prizes for winning. “Winner takes all the magic,” she said, smiling serenely. At the time she’d thought that meant taking only Trixie’s magic, but with the Alicorn Amulet enforcing the rules precisely, it really did mean all the magic. All the magic in Ponyville? All the magic in Equestria? In the world? She didn’t know, but she wasn’t about to complain. It was hers now. All hers.

“Ah!” She gasped as the second wave kicked in properly, big enough now to totally encircle Ponyville with her legs. Her fingers worked faster and faster, the merest dribblings of her arousal easily enough to fill bathtubs to the tiny ponies down below. And still she grew. All eyes were on her now, every pony giving her the same adoring, lustful looks they’d given Trixie. The same worshipful gaze Trixie was giving her now. Along with the magic, she must have taken whatever power Trixie had held over other ponies, only she was that much bigger, and therefore it was that much stronger.

The realization dawned slowly in her eyes: now she was a goddess… and not some paltry, play-divine figure like Trixie. No, with all the magic at her fingertips now, reality itself would soon be her own personal bitch.

“Ooooh, Twilight…” Pinkie moaned, still perched on her shoulder, hands madly groping her bubblegum pink breasts. “You’re so… huge! And so hot!”

She wasn’t about to argue with that, nor with the ponies trying to pleasure her any way they could. Earth ponies and unicorns scaled the immense wall of her thighs, licking and humping all the Twilight they could. Pegasi buzzed around her like a swarm of flies, doing all they could to further her arousal. She giggled as she thought she saw Rainbow Dash hugging the erect nub of her nipple, a pleasant tingle running through her chest. It was so little, so inconsequential to her, but from any normal pony’s perspective, there was easily more nipple than there was Rainbow Dash. And that was fantastically hot.

Twilight pulled herself slowly to a standing position, awed by just how tiny everything was beneath her. Ponyville was only barely too big for her to cross in a single step, and a second later not even that big, as she shot higher and higher into the air. She looked slyly back toward the mountain Trixie had once used as a backrest. Almost as big as she’d been before the second growth spurt, and now… “I hope nobody minds if I just put this to a better use,” she said chuckling, big enough to place a hoof on both sides of the mountain. “I mean, I did save the town.”

Size was rapidly becoming less of a problem as Twilight eased herself down on the mountain, gushing enough to coat the summit in her copious juices. Lips parted easily as the top slid inside, a cornucopia of textures assaulting her senses, her cunt convulsing around the solid stone peak. She squealed gleefully as she pulled back up, waiting to grow even bigger, then dropped back down, claiming still more of the mountain as her own. None of what she was feeling physically could match the pure ecstasy that came with knowing she could fuck a whole mountain. More than fuck a mountain, she realized as she thrust further and further down, taking more and more and more into herself. It was like a race to see which would come first; the point where the mountain was no longer big enough to satisfy her, or her orgasm.

“Bigger…” she muttered through the haze of arousal. The tip of the mountain had become the top quarter, and was quickly approaching an entire third. “Bigger,” she grunted as she took fully half of the mountain into herself. But it still wasn’t enough. “Bigger!” She slammed her hips down, the force of her thrusting comparable to an earthquake. Now that she was big enough to take an entire mountain to the hilt, she came to the realization that the position she was doing so from was somewhat awkward, so as she lifted herself up, she reached down and casually snapped it off of the ground at the base, like a twig, before flopping onto her back to more efficiently thrust it into her body. “Bigger!” But it was only a few moments before it was too small for her to properly use. Only four more good thrusts and it slipped from her fingers, lost to the moist depths of her sex. She frowned slightly, before a mischievous grin slowly spread across her face. Here she was, with all this brand new magic to play with, with more and more and more suffusing her very being every second. Why was she disappointed that the mountain she was using as a dildo had been eaten by her vagina? She was Twilight Sparkle, dammit, surely she was more creative than that.

And besides, she was a fucking goddess. Her horn was enveloped in a blinding aura, a multitude of swirling colors, the colors of all of the magic in Ponyville and more, soon to be all of the magic in Equestria, and then beyond even that. “BigerrrrRRRRRRRR!” she screamed as the aura enveloped her whole body, and she began to change. Muscles rippled and tensed beneath her skin as soft, bookwormy fat melting into a properly divine figure. She idly flexed an arm, revealing a bicep that made even the tallest mountain look like a pathetic anthill. She cried out in a mixture of ecstasy and agony as wings erupted from her back, her new wingspan putting entire continents to shame. After all, if she was going to be a goddess, why not look the part?

Twilight sighed as the last pools of magic in Equestria finally ran dry, her growth topping out at just over double the size of Equestria itself. It would do for now, she supposed. There was still more magic to be had, still plenty of fuel to power even more growth… but she could leave it for now. It was all hers by right, and she could claim it whenever she wished. For now, she had more pressing concerns. Namely, her need to finally get off.

“Thanks for the idea, Trixie,” Twilight rumbled, groaning as eyes glowed with a pure white light. Mile upon mile of dark cockflesh spilled from between her legs, fed by a pair of hefty, purple-furred balls. She bit her lip, recalling her fantasies from just hours before, when she’d been under Trixie’s spell. How she’d nearly orgasmed to the idea of Trixie’s cock utterly dwarfing the Two Sisters’ Castle. Goodness, how things had changed. Had Trixie been even twice that big, she’d still have been overshadowed by her own throbbing stallionhood. No, not even that. Trixie would hardly have been the size of one of her own fuzzy testicles, churning and sloshing with a literal ocean of cum.

There was hardly anything large enough for her to fuck properly, but at her size she supposed it hardly mattered. The planet itself qualified as a plaything to her now, its lesser inhabitants – members of the cult of Twilight, she supposed – easily protected with only a fraction of her tremendous magical power. Twilight let herself fall to the ground, the earth cracking and crumbling with the impact of her impossible weight. She giggled as warm, gooey magma surged up to cradle her. To any other pony, deadly hot, but to the planet’s goddess, almost relaxing. After a minute of lounging, soaking in the realization of her new power, her thoughts quickly turned to something else warm and gooey. Already her monolothic cock had soaked itself in her arousal, the dark, pulsing rod slick with a sheen of pre. She wrapped a hand (or tried to!) around it, the other hand gently squeezing Mount Tit, and started on a slow, rhythmic stroke.

“Oooh yes!” If there were any windows left in the world, that moan had just shattered them. Her hands picked up speed, giving herself into the pleasure with alarming intensity. The former inhabitants of Equestria, teleported far away by her magic, could only watch as their goddess put their homeland to good use. Even then, the ground tremored beneath their hooves as Twilight’s hips thrust upward with rabid, animalistic need. Errant droplets of precum, flung high into the sky, crashed back to the earth like meteors, creating new lakes wherever they landed. The scholarly parts of Twilight’s brain relished the idea that, by the time she was done, Equestria would need a new map.

She groaned, deep and guttural, as she felt her balls churn and rumble, reverberating deep into the very core of the earth. Fuck Equestria, she was going to rearrange the entire fucking world with the sheer force of her raw, unbridled lust. If she wanted to, she could fuck the entire planet straight into oblivion and the mere thought alone was so fucking hot. The pace of her stroking and thrusting picked up as she lit her horn, the blinding white aura of her divine magic enveloping her breasts so that her other hand could join its twin in more effectively stroking the towering monolith of her cockflesh.

Faster and faster she pumped, her heartbeat quickening as she felt her climax rapidly approaching. Idly, through the haze of impending orgasm, she leaned down and gave her cock a tentative lick, sending an electric surge of pleasure down her spine. “Fuuuuuuuuuck,” she moaned breathily as she felt an almost burning sensation at the base of her shaft, like fire and electricity and sex. “I guess...” she groaned, her breathing quick and shallow and growing quicker and shallower with each passing second, “...I guess this means that the magic duel has - ngggggggggh no not yet - haaaaas cuuuuuuuuuuming!”

Twilight’s pun was interrupted by an explosion of pleasure, the burning heat moving up her shaft before erupting into an orgasm that put most actual volcanoes to shame. The flow of cum was so staggeringly massive that there wasn’t a measurement of volume that could accurately describe the amount that surged forth from her cock, carving an arc through the air before thoroughly coating all of Equestria – and then some – in her beyond copious fluids. Ocean after glorious ocean of cum, with more and more coming. The oceans themselves slowly disappearing beneath a tide of creamy white. Her hips locked in place at the peak of her thrust, arms rigidly steadying herself on the ground while her cock flailed wildly like a hose turned up to the highest setting from the sheer force of spunk, spewing her payload everywhere, more and more and more until everything – everything – was coated in a thick layer of sperm, and then another few spurts for good measure.

And then, just when she thought she was winding down, the flow picked up again. A seemingly inexhaustible supply of cum, slowly petering down until it almost seemed to be over only to burst back to full force again, over and over, seemingly without end.

After what felt like months, Twilight finally started to come down. A few more weak thrusts and some tiny trickles (that still could easily fill a lake) and she was finally spent. Mostly. Her cock was still achingly hard and ready to go at any time she felt like releasing some stress. Being a goddess was tiring work, after all. Certainly that orgasm had taken a lot out of her.

“... Has cum to an end. There,” she finished, panting slowly as she basked in the afterglow. “Ha! Worth it.” Slowly, she pushed herself into a sitting position, cum flowing in to fill the space that her upper body had vacated as she languidly stretched. Idly, she licked her lips. “Mmmm, I taste goooood,” she groaned, bringing a cum-soaked finger to her mouth and eagerly sucking it dry. A salty, savory, creamy sort of taste. She swirled it around in her mouth like a sommelier savoring a fine wine before flopping back down, spreading herself as far as she could while she contemplated her next move.

This was what they meant when they said somepony was spoiled for choice, she idly mused. She had so much magic that she could do anything she wanted, with a limitless supply available to her should she ever feel like having more. Regardless, she had all the time in the world to come up with what to do next with her newfound divinity. She would sleep on it for now.

Dimly, she registered the almost invisible speck of pink still on her shoulder.