Quite Contrary

Celestia lay gazing with unblinking eyes at the wide blue sky, streaked with wispy clouds from horizon to horizon. Mary still quivered from a few feet away as she rode out her aftershocks, struggling to even stay upright, but she forced herself to observe the Princess closely, trying to guess what was going through that labyrinthine mind in the wake of such a messy orgasm.

The doctor wondered if there was any comparison in Celestia’s long life to what they were going through right now. A thousand years meant a lot of weird moments, yet there was — thankfully — only one Twilight, and only one Sun Princess. The universe was capricious and unpredictable, and Mary liked to believe that that was what was so cool about it, making life worth living. There was always some crazy new shit to experience, even if you lived a thousand, a million, a billion lifetimes.

Celestia spied a seagull, wheeling over the waves in its search for a meal, and she tracked its flight as it passed across the disc of the noonday sun, directly staring into the blazing light without so much as squinting. The gull banked and swept low, diving to the sea in a flash before rising again with a silvery, flapping morsel in its beak.

The successful hunter alighted on a salt-infused sculpture, one of many spread across the white sands, and its talons crunched holes in the delicate butterfly wings that made up this particular crystalline formation. The thin membranes were so detailed that Mary thought they might flutter away at any moment, across the roaring waves toward an unknown land.

The gull flapped its own enormous span once, twice, and then settled into swallowing its dinner, heedless of the damage to Twilight’s masterpiece under its webbed claws. But the magical icon took care of itself, regenerating with a swirl of glittering sodium drawn from the deepest depths of the Atlantic. Mary watched this happen along with Celestia, and the doctor understood instantly that nothing less than alicorn might could stop the glyphs’ deadly processes.

And possibly, not even that. But it was no use considering the worst case scenario.

Celestia’s head rested upon Twilight’s lap, and her mane of riotous color soaked up the rich cunt juices pooling underneath them like a used mop. Twilight let out a soft grunt, and a thick pulse of cream bubbled from her blown-out gash, splashing upon the Princess’ unresisting face and dripping off her cheek, adding to the inch-high lake of juices mingling with the sea water below the tired creatures.

A meaty schlick…schlick…schlick sound could be heard over the roar of the surf, slow and steady. Twilight’s hoof caressed what she could reach of Celestia’s three feet of majestic cock, slathered in the two ponies’ pearly ejaculate and already stiffening from the new stimulation. She stared with curious intensity at the mighty organ and its oversized balls, audibly sloshing with new vigor, but it was not a look of wonder, or envy, or disgust. It was the look of someone playing with a new toy, giving it a thorough once-over to ensure everything was in working order. She had claimed that mighty prick for her own, and now she enjoyed the fruits of her conquest, with little regard to its former owner.

Celestia’s quarter-sized pisshole yawned wide, and her nuts heaved as gobbets of come from the bottom of her ballsack pumped out of the opening, thick as clotted cream, pouring in sluggish rivers down the mottled length and covering Twilight’s stroking hoof with leftover mess. Instead of reacting with anger at this befouling of her person, however, the young alicorn brought the digit to her mouth, thoroughly licking it clean with a small, pink tongue before returning it to Celestia’s fleshy fountain, allowing it to be coated with yet another layer of warm spooge.

Far from her earlier revulsion, Twilight now seemed to enjoy the feel of Celestia’s sticky come on her fur, and the taste on her lips…and why shouldn’t she? It was hers, after all. Every drop that would ever percolate through those inexhaustible royal jewels belonged to the young alicorn as of this moment, to be savored or discarded at her whim. And there was no reason to waste such a delectable offering…not when it had been freely given by such a fervent penitent.

As proof of her submission, Celestia turned her head to the side and unrolled her slimy tongue, laving it around the edges of Twilight’s ruined pussy before going in deeper, slurping up as much cunt juice from those reddened depths as she could draw into her throat. Twilight hissed, grasping the pure white horn in her lap as she used the Princess like a sex toy, humping herself into that graceful muzzle and pressing it so deep into her slimy gash that Celesta began to sputter and choke. But the older alicorn did not pull away, meekly allowing herself to be used and moaning in contentment at the rough treatment.

Did Twilight even care that Celestia was enjoying the feel of the hoof stamping upon her face? What if she began to? How far would the young legend have to go before punishment led to real anguish, instead of masochistic pleasure? The potential answers to those questions made Mary shudder. Now that some of that excruciating sexual tension built up over centuries had been expended, the post-nut clarity from such a release was the biggest threat to the doctor’s continued existence yet. Mary had to keep Twilight off balance and soaking in sin so she could buy enough time to think of an actual solution to this shitshow.

“If we can’t kill you, maybe we can just wait for you to die of dehydration,” Mary said, planting her hands on her hips as she tried to project more confidence than she felt. “Are your cunt and her balls connected to a magical come dimension, or something? I can have some Dasani brought in, if you need it.”

Twilight lazily turned toward Mary, dragging Celestia’s head to her fat, pulsing clit and spreading her thighs wide, shamelessly enjoying her slave’s devotion as she regarded the doctor. “Mmm…goodness…goodness. That was s-something, wasn’t it? It’s so fascinating, the way eroticism is tied to circumstance. I’ve had other ponies eat my c-cunny before, but the sight of Celestia’s face buried in my pooch simply drives me insane.”

Celestia made a burbling sound against the young alicorn’s slick cunt flaps. It sounded like happiness to Mary, but she wasn’t quite sure. Twilight playfully rubbed the Princess’ come-covered nose anyway, and Celestia quieted down, settling into the natural worship of her new fizzy grape-flavored goddess.

“I would imagine, at times, the sense of satisfaction I’d have when I finally shackled you,” Twilight sighed, “but this is exceeding my wildest f-fantasies.”

Mary gave Twilight a searching look. “Is that cute little stutter for real, or just your attempt at manipulation? ‘Cause I kinda feel like I’m being underestimated here. Might be bold coming from me, but I don’t particularly enjoy getting fucked around.”

The corners of Twilight’s lips twitched into an approving smile, but the humor in her lidded eyes was that of a witch, and she ceased her petting of Celestia’s busy snout. She slowly rose from the soiled beach, letting the Princess’ head fall from her lap to the filthy swamp with a splash. Celestia scarcely reacted to being so carelessly tossed aside, only rolling onto her stomach and rooting in the muck like a naked mole rat, existing only for whatever stimuli she could find. She was soon encrusted in alicorn scum as her hips rose and fell, screwing a hole in the sand in an instinctual search for pure sensation.

Twilight never gave a single glance backward as she approached Mary, leaving her slave to her own bestial pleasures as the crunching of her hooves sounded loudly in Mary’s ears. The word adorable kept flashing in the doctor’s mind as the purple pony, with her pint-sized horn and stubby legs, came closer. Was that by design? Mary gave herself a mental smack in the face as she glanced at the salty glyphs floating nearby, remembering that this was not a cute woodland creature who would be her friend forever, if they could only talk through their differences like rational individuals. Twilight was an alien in every sense of the word, though one with the advantage of hundreds of years of human observation. And she was at least as brilliant, as devious, and as broken as the Sun Princess.

“Who’s been underestimating who?” Twilight said, and she chuckled at Mary’s wide-eyed shock, as if the alicorn had been reading the doctor’s thoughts. “Not me, certainly. Anyone who can match Celestia’s hunger, and has earned her respect and confidence, is one to be wary of. I haven’t reached my current strength by taking my enemies lightly. And make no mistake, Dr. Parvotti. I do consider you an enemy.”

Mary stood still, only turning her head as Twilight rubbed against her body like a panther, even arching her back as she circled the human, teasing the tanned skin with a gentle touch of a wingtip here, and a bump of a flank there, and a sensual caress of a striped tail wherever she could reach. The heady musk of Twilight’s perpetually randy cunt filled Mary’s nostrils, and the doctor began to pant as she radiated with fresh heat. She had to force herself not to reach out to stroke the soft, shining fur that surrounded her with carnal promise, and she gave a low growl at the knowing quirk in Twilight’s lips as she fought to keep control over her own lust.

“You make her want it,” Twilight purred as her nose nuzzled between Mary’s thick ass cheeks, blowing a cool breath of air against the winking hole within and making Mary bite off an involuntary groan. “You make her embrace the leviathan. You could have been a mediating force for Celestia’s mad passions, leavening her desires into something less…destructive. Instead, you encourage any perverted thought that enters her screwed-up head, pushing her into ever more extremes of debauchery. The next time Celestia makes a ruin out of someone’s unsuspecting womb, I hope you feel at least somewhat responsible.” She chuckled, giving the twitching brown asshole a long, slow lick, which sent a bolt of lightning up Mary’s spine. “But you probably won’t, will you?”

“I can’t make the Princess of the Sun Upon the Golden Throne of Canterlot do a goddamn thing,” Mary said through gritted teeth as she endured Twilight’s goading. “That’s all on her. I’m just along for the ride, enjoying the view. Celestia’s sins, whatever they might be, are not my fucking fault.” She reached behind herself and pried her cheeks open, exposing her dark hole and hairy, dripping cunt to the humid ocean air. “That said, I’ll confess to the fuckin’ Zodiac Murders if you keep doing what you’re doing. The way you use that tongue says you’re not as inexperienced as you come across, and I’m not talking about your rancid attitude.”

Twilight’s hooves replaced human hands on that big, soft rump as she accepted the doctor’s offer. The young alicorn started from the front as she went between Mary’s legs, dragging her mischievous pink taster across Mary’s gushing cunt, running it around the straining, throbbing clit and drawing lazy circles, producing a stifled groan before moving backwards and laving the sensitive taint between Mary’s pussy and her rear entrance, getting closer and closer to…then, she stopped.

Twilight pulled back for a moment, admiring her handiwork as long ropes of spittle connected her lips and Mary’s inflamed privates. She seemed to be enjoying the human’s desperate attempts to keep from coming…and honestly, Mary was, too, but she’d be damned if she was going to give that uppity mare the satisfaction.

Twilight’s dark chuckle told Mary she wasn’t fooling anyone. She pulled the doctor’s meaty buttocks further apart, revealing the puffy orifice that was already quivering, opening and closing with every beat of Mary’s racing heart as it awaited its turn, so needy in its desire to be filled by something, anything. “It must be nice to have such…selective morality,” Twilight murmured as she slid the tip of one hoof into Mary’s twitching rear entrance, going just deep enough to make Mary grunt as she pushed her big ass backward for more. “It’s so easy to tell yourself you’re just a weak little human, caught up in the historic events of first contact. After all, Celestia is a creature from another dimension, strange and unfathomable. It isn’t as if she has her own thoughts, desires, fears and hangups, just like any other living being. Why bother trying to use your own judgment when you can just tag along with her schemes like a trained animal, even as you sink your own teeth and claws deeper into her neck every day?”

A loud moan came from Celestia’s direction, and Mary and Twilight both turned to see her massive, sun-spanned buttocks clapping against the sand, faster and faster until she abruptly stopped, and her whole huge body trembled in release. The sounds of spurting were clear and strong as the Princess gave a blissful whimper, emptying her balls deep into the ground.

Twilight chortled with unrestrained glee. “Behold, the otherworldly menace! Hide your glory holes, people of Earth!”

Mary wasn’t hearing anything she didn’t already know. She had few illusions about her strange relationship with Celestia, but she’d become so used to the narratives she’d prepared that the lies came easily to her lips.

She tried not to think too deeply about her own issues, concentrating on the problem currently rooting around in her anus, but the sight of the Princess wallowing in her own special blend of ecstasy and despair only served to fan her flames higher. That, as well as the delightful feeling of Twilight’s fur-covered digit in her hungry butthole, sent her careening down that slope toward oblivion, and Mary could no longer even pretend to keep her cool.

“You think you’re any better than her?” Mary gasped, holding onto herself as best she could as Twilight’s wriggling tongue did the hoof one better in pleasuring her winking asshole. The tiny muscle seemed to be everywhere at once, tracing random nerve bundles outside and in, keeping the doctor on edge constantly as her body tried and failed to anticipate where the sensations would come from next. “You’re…trailing your slimy cooze all over the beach, you…dumb fucking candy-coated mule. God…she really wrecked that pussy all the way through, didn’t she? Made you into a freak, just like her.” Mary gave a low chuckle that turned into a sharp laughing cry as Twilight dug deeper into her booty. “Ahah!…nnn…but you can’t cook a meal without the ingredients. I’m thinking she just woke up something inside you, something you were born with. I’m sure it sucks to find out you were always a dirty little size queen, but you gotta face the truth sometime. Personally, I think Celestia did you a solid.”

“You do like poking bears, don’t you, Dr. Parvotti?” Twilight sounded annoyingly unfazed. “One of these days, you’re going to overstep your bounds and get eaten alive.” The young alicorn opened her jaw so wide it creaked with strain, and she covered Mary’s asshole with her muzzle before shoving her tongue as deep into the spasming channel as she could reach, greedily sampling the musty flavors of that well-used anus. She hummed from deep within her barrel, and the doctor fought the wild urge to jerk her hips, covering her drooling pussy with one hand in a fruitless attempt to hold back the tide and receiving a splash of cunt juice in her palm for her trouble. Twilight’s throaty vibrations traveled through her body into Mary’s core as that questing wet muscle worked its way into the human’s furthest reaches.

“Sometimes…slurp…when I’m alone with my darkest, most terrible thoughts…mmm…I fear letting Celestia ravage me might have been for the best. We’re all products of our experiences after all…mph, oh my, you are delectable. Her assault shook the rust off me, making me what I am today.”

That certainly was one way to deal. “You’re rationalizing, Grape-Nuts, and you know it. Hell yeah, get all the way in there. Eat the booty like a steak. Show me what I’ve been missing.”

“I can’t deny your diagnosis,” Twilight said with surprising charity as she practiced a few new tricks. “Trauma is a weird thing. I may not be able to see my own blind spots…mmm, yes, you liked that move…but I can see the shapes they leave in my mind. Still…nnn…if I hadn’t endured what I’d gone through that day, I wouldn’t have had the distinct pleasure of seeing the look on that creature’s face as I took everything from her. It’s a feeling I didn’t know I was missing…and now…slurp…now, I can’t live without it.”

Twilight had a faraway look, and her tone became unusually pensive as she plunged her hoof into Mary’s well lubricated ass without preamble, burying it up to the wrist and making the doctor scream with delicious agony. “I’m sick now, Dr. Parvotti. Maybe I always was, but after Celestia, I definitely am. Don’t you ever tell me my retribution isn’t justified. I could do so much worse, instead of just taking dominion over her and everything she owns, but she needs to at least live with the consequences of her actions.” She gave a small laugh as she turned her hoof clockwise, then counterclockwise in Mary’s rectum while moving in and out, enjoying the crushing pressure against her digit as the doctor took her medicine without the assistance of body shaping magic. “Claiming you is one of those consequences, I’m afraid, but I think you’ll find me to be a reasonable mistress. Mostly.”

Twilight’s thrusting went deeper, and yet deeper, making a naughty squishing sound in Mary’s asshole, and the doctor grunted with complete abandon as she spread herself, not even trying to hide her noises of delight as she was hoofed raw. Mary could feel the contractions starting up in her core, and she was sure Twilight could sense the same, but her pride wouldn’t let her go out without a fight. “Thought I told you before,” Mary hissed as Twilight’s other hoof went to her overheated cunt, teasing around the outside and smearing hot cream around her throbbing clit, “I’m not your fucking action figure. You’re gonna have to make do with one less hopelessly devoted slave, ‘cause I ain’t the one, hon.”

Twilight abruptly yanked her arm out of Mary’s colon with a sucking pop. The doctor’s asshole gaped wide enough to admit a Golden Delicious, and the angry red interior pulsed and clenched, desperately seeking out a big, thick whatever to fill it again, but the young alicorn took a step backward and sat on her haunches, patiently waiting for Mary’s attention like a schoolteacher dealing with a rowdy student.

Mary took a moment to recover with her eyes closed, bent over with her hands on her spread knees, and she took a series of deep, shuddering breaths, tamping down her approaching orgasm before rounding on Twilight with an annoyed glower. “Goddamn it! The hell, now you’re mad I won’t play ball on your terms? What happened to ‘using my own judgment’? If you want a fuckbuddy, just say so, but I get the feeling the two of us have some misaligned expectations about what that means.”

Twilight didn’t actually look mad…just annoyed and somewhat put out, as if Mary was being painfully obtuse. “Stand on one foot,” she said quietly.

Mary guffawed as if she’d heard a bad joke, but the laughter died on her lips as Twilight locked eyes with her. “What is this? Are you fucking with me, or…”

Twilight said nothing as she stared the doctor down. She did not explain herself, and she did not repeat her instruction. She merely waited with the graceful conviction of a sovereign, knowing that her order would be obeyed without question. It was a certainty that Mary suspected had been tested and reinforced time and again. Had Twilight been told ‘no’ even once in the past few decades? The doctor doubted as much.

Mary considered the consequences of insubordination. They had agreed to follow the legend’s directions, but silly shit like this was not what she had envisioned. If the doctor followed her instincts and told Twilight to eat a dick, would the young alicorn take it personally?

The stony look on Twilight’s face told Mary that yes, she would take being told to eat a dick very personally indeed. They couldn’t afford the risk, and they both knew it.

Mary sighed in acquiescence, though her expression made her objection clear, for whatever that was worth. She raised her right knee as she crossed her arms in childish defiance, relying on her equestrian-trained balance to keep herself upright. “You happy?”

Twilight’s countenance did not change in the slightest. “Moo like a cow.”

Mary’s sole started toward the ground again as she let out an exasperated snarl. “Look, bitch-“

“I did not grant you permission to lower your foot.”

The doctor’s heel leapt up as if the sand was made of lava, and she wobbled as she spread her arms, swearing at her own reflexive obedience. Mary definitely wasn’t having fun anymore. “Moo,” she said sullenly.

Twilight raised her eyebrow a millimeter, and Mary’s anger deepened. “What’s the point of this? What do you want me to do?” She instantly felt foolish for asking the question, as Twilight’s objective was painfully obvious, but she couldn’t help being pissed at the young alicorn who sat at perfect ease, awaiting the fulfillment of her command.

Mary's huff was teenager-worthy as she stood there on one leg like an idiot, but there was nothing for it. “MooOOO!” The sound was right out of her memories of the family farm, loud and lowing.

Twilight nodded, satisfied. Mary half expected patronizing applause. “Very good. Be at ease.”

Being at ease was the farthest thing from Mary’s mind, but she obeyed, stamping her foot on the ground with more force than she intended. Twilight rose to her hooves, and she got right up in the human’s sour face, drinking in her indignation like a fine Malbec. “You most certainly are my action figure, Dr. Parvotti. I can pose you like a doll, or dress you up in cute outfits if I so desire. I can also pull you apart at the joints. Do you understand what I’m saying?”

A forceful ocean spray splashed against Mary’s legs, strangely chilly despite the noonday heat, and she felt goosebumps rise on her olive skin. The doctor swallowed hard, her throat suddenly seized by an unusual force, but it wasn’t the power of magic that kept her silent. It was something much more primal, more dangerous, reaching into her spinal column and running clammy fingers along the edges. Twilight’s clear and present threat was reflected in her eyes, dark as a shark’s, and Mary had no counter.

Twilight gave a barely there smile, reading Mary’s reactions as they flowed across her body. “Good. That will save us a lot of aggravation. Now, then. I think it’s time to claim my prize.” She ran a hoof under Mary’s left breast, feeling the heft of it before brushing the digit across the front, and the nipple turned stone-hard immediately, despite the doctor’s unease.

Twilight chuckled at the response. “Someone has a one-track mind. I’m starting to understand Celestia’s attraction.” Her hoof went lower, tracing the curve of Mary’s hip before squeezing one of those chunky buttocks. “That’s fine, though. It’ll make breaking you all the more satisfying.”

Mary wet her lips, feeling the constriction on her vocal cords lessening. She seethed at how her cowardice had been put on full display, silently vowing to pay back the humiliation. With interest. “If…if Celestia couldn’t break me,” Mary said with increasing confidence, “I think you’re gonna be disappointed. You’re welcome to try, though.” She brazenly grasped Twilight’s wandering hoof and moved it to her inflamed twat, already moistening with fresh cream. “Us humans have tricks of our own. If you don’t watch yourself, you might just end up begging me to let you come. Fair warning.”

Twilight glanced at Mary’s hand on her furred digit with a skeptical look before returning her gaze. “Your misplaced self-assurance is noted. I still don’t think you quite understand what you’ve gotten yourself into, but you’re going to learn. Right now.”

Mary barely saw the blur of motion from Twilight’s other front hoof before she found her legs tripped out from underneath her, and she fell hard to the wet sand, landing on her rear with a surprised grunt. The doctor herself had a first kyū judo brown belt, so she recognized a takedown when one was done to her, but the speed and power of Twilight’s attack was still shocking.

A slick of fear bubbled to the surface of Mary’s awareness, but she let her anger roil it away, instead forcing herself to meet Twilight’s action with sultry defiance. “Nice move. Did Celestia teach you that, or did you squeeze in some MMA training while you were away? Wanna practice some mount positions?”

Twilight glared down at the fallen human. “I must admit, I never expected anyone to be so…enthusiastic about being taken against their will. You do realize what this is, don’t you?”

Mary shrugged. “If rape is inevitable, might as well lay back and enjoy it. Then again, the struggle adds a little spice, right? But I’m sure you know all about that.”

“More than many.” Twilight began to circle the human, examining her like a prized steer fresh from auction. Mary couldn’t read her expression well enough to figure out if she dug what she saw. “I’m sure you’re familiar with the literature on abuse, Dr. Parvotti. It’s a cycle. The sins of the parent — or the mentor — are passed down to the next generation, and it starts all over again. I’m no different, and I’m afraid you’re next in line. I wouldn’t worry too much, though.” Her eyes flicked to the forest of sigils along the coast. “The cycle ends with me, one way or another. I promise you that.”

Mary knew a lie when she heard it, and this one was screaming from the rooftops. Celestia had had more than a millennium to come to grips with her monstrous libido, and she still failed in the end. If Twilight thought she would do any better as a newly-ascended alicorn with ultimate power, sparing both ponykind and humanity her madness by some miracle, she was either deluded, or crazy, or both. This would only be the beginning.

Quite simply, things would probably get very bad if Twilight had her way, and they were running out of time.

Mary looked past the young alicorn at Celestia, sitting on the ground a few yards behind. Her thick thighs were spread, and she was stroking her massive pink cock using both hooves while staring at Twilight’s messy cunt with a glassy expression, as if the smell of her ex-student’s juices was a drug all its own. Her hips slowly hunched up and down, and the occasional spurts of precome fired into the air and fell on her snowy head like salty rain.

Correction. Mary was running out of time. Celestia’s had already run out. Hard mode it was, then.

Twilight stopped directly in front of Mary’s supine form. “Open your legs. Show me what I have to work with.”

Now, this was more like it. Mary spread her legs wide, but she also raised her hips, demonstrating her natural flexibility as she brought her ankles to her ears, leaving her knees bent akimbo. Her cunt naturally unfurled like a wet flower, and a drizzle of thick cream pulsed from deep inside and trickled down the crack of her ass, leaving a slimy trail that dripped into her clenching brown hole before overflowing onto the sands below.

Mary worked her Kegels, making her twat pulse and throb while more rivulets of mouth-watering juices bubbled from her depths. It wasn’t exactly equine winking, not really, but she figured she got her point across well enough.

The doctor thrilled to Twilight’s eyes on her sloppy gash, and she rolled her hips in a slow fucking motion, leaving nothing to the imagination. “How often do you get a taste of human pussy? I get the feeling it’s been a while. Well…no need to stand on ceremony. It’s yours, isn’t it? Take what you want.”

Twilight took a step closer. Her little button nose twitched as she breathed in Mary’s musk, and she made a strange, small sound. There was a loud splat as a waterfall of cream spilled from her cunny, making a puddle between her rear hooves. “Your…vagina is exquisite, Dr. Parvotti. I’ve never seen such a hungry looking orifice without looking in a mirror.”

Mary rolled her eyes. “Pussy. Poo-say. Come on, just once. You won’t burst into flames, I’m pretty sure.”

“You can’t guarantee that.”

“No. No, I guess I can’t,” Mary conceded. “Look, if you’re ready to sling cock, then step right up. But, uh…seems to me like you’re missing some crucial equipment. Gonna need to magic up Big Jenny and the Twins before we can start rocking and rolling. And you better make it good, ‘cause the stuff I’m used to is fucking fire.”

“I don’t need a penis to make you see stars,” Twilight said as she licked a drop of her own soda-flavored juice off a hoof with her devilish tongue, “but there’s a certain brutal symbolism in doing it this way that I rather like.” She turned to Celestia as she clopped her hooves together twice quickly. “You. Beast. I know you’ve been listening. Make yourself useful for once. Natural size is fine — I don’t want to completely destroy her. Not yet.”

Celestia stared blearily back at her mistress as she fondled her royal meat slab, now sticky with drying come and wet sand yet still thick and diamond hard, while her balls rumbled as if she’d been edging for days. At first, Mary thought she hadn’t processed the order, and for a terrifying moment the doctor wondered if she was finally so far gone she’d lost her powers of reason altogether. Then the Princess gave a timid nod, and her majestic horn began to glow with a soft, white light.

Twilight grunted, wincing at the extreme sensation of magical manipulation, and she spread her rear legs wider to relieve the sudden pressure in her crotch. Her sensitive clit, already the size of a cherry tomato, began to throb with mystic energy, growing bigger and bigger with each pulse until it was the size and shape of a horsecock the width of a soda can, over a foot long and colored a bright mottled violet, with black spots. It was crowned with a flare that could cover Mary’s palm, already drooling fat globs of precome from the tip, and the doctor could see an indigo sack with nuts like softballs between Twilight’s thighs. No sign of the young alicorn’s dripping cunny could be found.

Twilight’s eyes were squeezed shut tightly, and she groaned as the unfamiliar feelings swept through her. “Oh. Wow. Wow. So this is what it’s like. I didn’t think it would be so…nnn…intense.” She opened her eyes again, and she admired her new piece as she ran her hooves along the soft surface, letting out a shuddering sigh as her balls lurched, spewing a line of white onto the sand between Mary’s raised thighs. “Ohhhh, g-goodness!”

Twilight had never given herself a prick before. The realization sent a spasm of pleasure into Mary’s cunt, and she couldn’t keep a goofball grin off her face. She’d been racking her brains trying to figure out what kind of leverage she could use against the legend, but she never considered that Twilight might be new to the thrusting, penetrating power of cock. It was a slight advantage, but if this was still a negotiation, she had to hold onto whatever edge she could.

Although…the doctor couldn’t help looking askance at Twilight’s new tackle. “Mmm. That’s not bad, I guess, but I have to admit you’re kinda letting me down.” She used a hand to mark a line high up between B-cup tits shining with perspiration and bodily fluids. “I’m used to a little more meat on that bone, if you catch my meaning. Gotta be this tall to ride, Clyde.”

“Thanks for the reminder to have you fitted for a bit and bridle. In any case, I’ve got enough to feed the needy, I assure you.” Twilight got into a bow-legged crouch over Mary’s frothy cunt as she lined up the head of her new cock. At first touch, the tempting hole twitched and anointed the young alicorn’s broad tip with a libation of juice that tickled Mary’s channel as it streamed out in a rush. “I wasn’t going to b-bother with lube anyway,” Twilight said as she showed her teeth. “Nnn…so soft. P-prepare yourself, Dr. Parvotti. This isn’t going to go the way you expect, and I want to see your f-face when comprehension sets in.”

There was that queer verbal tic again, although Mary wasn’t sure if it was an affectation this time around. Twilight’s glassy eyes and slack mouth were frighteningly similar to Celestia’s when the Princess was running on pure instinct, and the doctor tried to figure out if that was a good or bad thing as the stress on her lower lips steadily increased. “Yeah, I don’t think you get it. I’ll have to have Luna send you a copy of our first night. I thought I was gonna AAAHHH! Shit, wait wait wait wait wait, what the fuck!?”

Twilight put her hooves on Mary’s raised ankles, holding the struggling human steady as her flat tip popped into the doctor’s constricting gash. The legend groaned loudly, deeply, raising her voice to the sky as she forced another inch into that clinging hole. “NNNNHH! I told you, d-didn’t I? Body shaping magic isn’t really my area of expertise. Ohhh, goodness….goodness, I can’t…too wet! Too hot! I won’t stop, Doctor! I refuse! No, don’t run from it…you don’t have to like it, just t-take it all! Nnngh, so…so good!”

Mary reached down with both hands, grasping Twilight’s thick shaft in a desperate attempt to slow its advance, but the sizzling length slipped through her palms as it sank further into her protesting cunt. There was some pain, yes, but it was mostly an unfamiliar sense of fullness, a weird pressure that she had never experienced in her trysts with Celestia. The doctor watched with wide, teary eyes as a lump under her skin slowly traveled up her stomach, and each tiny movement Twilight made as she settled into her assault made Mary want to scream.

Sometimes, the absence of something was just as conspicuous as its presence. For the first time, Mary truly understood what Celesta’s magic had done to her. Most porn stars couldn’t take a foot of fat horsecock without hazard pay, and though the doctor had been fairly experienced before meeting the Princess, a prick like this would have had her questioning her life choices.

Unfortunately, she no longer had a choice in the matter. The throbbing meat bludgeoned Mary’s insides as it tunneled deeper, resisting all her body’s efforts to reject the invader. Twilight’s “average” cock made the doctor into a sputtering mess as it gouged her out, just as the young alicorn predicted.

Twilight yelped as her prick was crushed by Mary’s clenching orgasm, feeling the contractions travel up and down the third of her length already embedded into the sticky hole. A spray of girlcome doused her torso as the doctor shook uncontrollably, and she let out a lusty, chuckling moan at Mary’s bodily submission.

“Don’t worry, Dr. Parvotti,” Twilight breathed as Mary’s core clenched again and again on her raging spire. “You’ll like being a size queen. I’m going to turn your tight little c-cunny into a ruined hole just like mine, so that every time you lay with a lesser being, you’ll mourn in a secret voice only I can hear.” The alicorn moaned as she pulled back, then in again, flexing her pert butt as she started to fuck herself into a frenzy. “Take it all, there’s a good pony. Show me your tears. Let me hear you wail my name as you come all over me. Nnnghhh…more…I need more! Say it! Empress Twilight! Say my name, damn you!”

Mary couldn’t have spoken more than a gurgle at that moment, to say nothing of bestowing titles. She gurgled anyway at the hammering in her tightness as Twilight laid into her hard and fast, claiming her cunt like a conqueror, and the doctor became more and more alarmed even as a series of rolling contractions rattled her overwhelmed mind.

The young legend was not going to stop until she crammed every glistening, purple inch of cockmeat into the belly underneath her, and that was going to be a highly difficult proposition at best with Mary’s all too human anatomy. Cervical penetration as a concept had always sent the doctor soaring, but if she didn’t end this soon, the reality of Twilight’s uncontrolled passion without the protection of Celestia’s shaping magic was going to bring her plummeting back to earth. Hard.

Mary struggled to hold onto her rationality as she groped for a way to escape, while Twilight drew closer and closer to her unprotected womb with each manic thrust. The only way out was forward, as far as she could tell — if she could make the alicorn come, that would probably be enough of a shock to the system to keep Twilight from destroying her. A gambit began to form in her overstimulated brain…risky, but she had to try.

“What would Cadance say…if she could see you now?” Mary grunted, forcing out the words as Twilight wrecked her insides. “I think she’d be…jealous. Did you ever have…sleepovers? Just you and your foal sitter…alone in your room, with your parents…right down the hall? Hm? I bet it was always…her idea, wasn’t it?”

Twilight’s rampage almost stopped entirely as a light of shocked recognition lit her face. “How…how did you k-know that?”

Evidently, they didn’t teach cold reading in Princess school. The doctor plunged forward while the element of surprise was in her favor.

“Cady?” Mary whimpered in a small voice, making herself sound as meek and vulnerable as possible while staring up at Twilight with big, watery eyes. “What are you doing, Cady? I told you I don’t like this, it feels icky. You’re…you’re gonna break me, Cady. Where’s Mommy and Daddy? Mommy! Daddy! Help mMMMMPH!”

Twilight’s hoof muffled Mary’s cries as the alicorn re-doubled her efforts, slamming into the human with a sudden bone-rattling force. “Shhh…you gotta…you gotta stay quiet, Twi. You don’t wanna wake up your parents. It’s late, and they’ll get mad. I…I’ll get you some ice cream tomorrow, like I did last time, ‘kay? Please let me do this…super duper promise this’ll be it, Twi, I swear…yeah, good pony. Settle down and take it, that’s it. It’ll feel good soon, I know it will, just…think of the ice cream, Twi. Nnnnfff…I love you so fucking much, you know that, don’t you? Why did your little body have to be so sweet? Oh, Twi…”

Mary was glad “Twi” couldn’t see her wicked smile. This was a weird kind of inverted role-play that the alicorn had slipped into, but the doctor was positive that every word and mannerism was perfectly captured from memory. Cadance had certainly left her mark on that receptive mind.

The poor filly never stood a chance. First, her foal sitter, then her mentor…just a nightmare of trust issues. Mary didn’t know if it was an alicorn thing, or if Twilight simply gave off “molest me” vibes, but the cycle had started long before Celestia, and it wouldn’t end with her, either. There was a time when Mary would have bemoaned the cruelties of fate, but she knew better now. It wasn’t fate that led Twilight to this point…simply desperate lust, fumbling in the darkness of a young pony’s bedroom.

But…hadn’t Celestia torn Twilight’s virginity from her on that sweet-scented day? What could this mean?

Before she could fully ponder the question, Twilight removed her hoof from Mary’s face. The human took a single shuddering breath, and then her lips were consumed by a purple alicorn muzzle as it forced them open, filling her mouth with a searching alien tongue while swapping hot spittle that dripped down her reddened cheeks.

Twilight pulled back, at the same time biting Mary’s plump lower lip in a way that was anything but playful, and a string of saliva connected the two as the young alicorn gazed at the doctor with a look of fresh esteem. She lowered her equine snout to Mary’s ear, speaking in a whisper thick with exertion.

“That was very good. You caught me off guard, Dr. Parvotti, and that hasn’t happened in a long time. What’s your next play? Or was that it? If so…” Twilight used a hoof to adjust Mary’s pelvis to the proper angle before digging her rear legs into the sand and bearing down sharply, causing Mary to yelp in confused pain and pleasure as that mottled prick slammed into her deepest self. “Knock, knock.”

Twilight gave another quick jab of her hips, and Mary’s eyes squeezed shut as she barked a broken moan. The doctor could feel the moisture in the corners of her eyes, and that galled her, but there was a new fire in her belly that fueled her resolve: those tears would be her only concession. She didn’t give a shit if Twilight turned her ovaries into scrambled eggs — now that she knew that the legend had her own particular vulnerabilities, there was hope. Even now, with Twilight at her most forbidden gate, she knew she still had an out.

Mary opened her watery eyes as she peered past Twilight’s panting face against her neck…at Celestia, who was rearing up like a stallion behind them both. Her massive frame cast a chilling shadow against the sun, with her fat, thick-as-a-thigh Princess cock pointing to the heavens in a blind search for penetration.

The distraction had been a success, and Celestia was through with being left out of all the fun. A jet of precome spurted from her flat tip, landing with a splat upon Mary and Twilight’s straining bodies, although the unsuspecting legend ignored the deluge, too far gone in her own scramble for release. For Mary, however, that mighty tower of flesh represented salvation.

The doctor still had two holes free. If Celestia sank her prick into one of them, the Princess’ instinctive magic would change Mary’s body, protecting her from Twilight’s ransacking of her womb. However, the young alicorn also had convenient orifices. In Celestia’s addled state, there was no telling what she would do.

And to Mary’s great shock, she realized that this uncertainty was one of the hottest things she’d ever experienced in her life. The thought of Celestia sinking her big, fat fucking Princess cock Mariana Trench-deep into this crazy mare’s tight pucker almost made Mary come on the spot.

She desperately wanted to have a front-row seat to Twilight’s anal destruction. It would be another lesson the young alicorn would never forget, even as she broke Mary’s cunt wide open. The truth of her own ambivalence shook the doctor almost as much as Twilight’s driving hips against her own.

She’d always known, but now it was clear: Mary was pretty fucked up, too.

The doctor decided that she would leave it all up to chance as Celestia approached, snorting hot breath in her incorrigible zeal and wielding her cock like a weapon in her hooves. Mary caught the Princess’ gaze, mentally begging her lover to take her pleasure in whatever manner she saw fit.

“Do it,” Mary muttered, and Twilight chuckled, thinking the human was simply putting up a brave front. “You want to break something, I can tell. Agghh, fuck…come on, you freak. Put on a show. Do it!”

Mary’s words barely carried over the wind, but Celestia seemed to respond, tilting her head as she re-focused her attention on the writhing buffet of flesh laid out in front of her. She pointed her monstrous prick downward, aiming it directly at the jostling junction between Mary and Twilight’s bodies, and the doctor held her breath as she felt the stress build on her suddenly too-small anal ring. It occurred to her at that moment that Celestia’s mind might be so screwed up she’d tear Mary apart with her royal bludgeon, forgetting about any magical protection in her rush for release. She shuddered at the thought, but they were all well past the point of no return.

Fuck it, then. There were worse ways to go.

Celestia’s horn gave off a weak glow, and Mary grunted, feeling jets of precome splash against her winking taint. She recognized the strange sensation of body shaping, reveling in the cool wash of comfort mixed with extreme pleasure as she welcomed the Princess into her asshole like a prodigal daughter. Twilight showed a startled expression as she abruptly sensed Mary’s hole stretching in a way that no human’s should have been able to, and she craned her head to glare daggers at the alicorn behind her, mindlessly forcing her way deeper into the doctor’s sticky rectum.

“You dare?” Twilight roared with pure indignation as her stubby horn blazed with power. “You presume to bring that disgusting pillar of flesh near your mistress’ holy vagina, you cretin? You would even use magic when I expressly forbade it? I should strike you dead for such sins!” Celestia’s big body levitated, pulling backward until the tip of her cock slipped out of Mary’s ass with a pop, and then the Princess was spinning wildly through the air toward the open ocean while Mary watched the arc of her flight with a dumbfounded look.

Mary tracked Celestia until she hit the warm afternoon waters at least a kilometer from shore with an enormous splash, right in the path of a massive wave that had not been there a second ago. It rolled over the spot where she landed like a blue-green train, and the next moment, she was gone.

The doctor wanted to cry out, but she forced herself to believe in Celestia’s preternatural toughness. She had her own problems to worry about as Twilight turned to face her again — the young legend’s face was wroth as she slammed herself into Mary, wrenching open the human’s cervix a little more with each thrust.

“What did you think would happen?” Twilight hissed as that final barrier began to give way. “Did you think Celestia would save you? She’s a shell, hollowed out, emptied of everything except whatever I want to fill her with…and believe me, I have a lot to give. What I’m doing to you, I’m going to do to her…over, and over, and over again. Mmm…I can feel you fluttering in there. Is that fear, or lust? If you’re still alive after all this, I suppose I can appoint you my official semen cleaner. I’m sure there’ll be plenty to…NNNGH!”

And Celestia said Mary talked too much. In her righteous fury, Twilight hadn’t noticed the doctor’s expert manipulation of her internal muscles against the prick that was now well buried inside that stretched-out womb. The Princess’ magic was still working, allowing Mary to use all her dirty tricks to massage a grape-flavored gift from those purple balls, rippling her core in ways that would make a belly dancer hang up her bells. Between the natural tightness of Mary’s cunt and the crushing pressure of her cervix around the head, Twilight’s inexperienced cock hadn’t a chance.

“No…I won’t…I can still…nnn…no! No, no, no!”

But it was pointless to hold back the inevitable. Twilight gave one last bone-crushing slam against Mary’s upturned hips, then the doctor felt those grapefruit-sized nuts tense up, pulling against the base of the legend’s horsecock before they began to pulse with an uncontrollable rhythm. Twilight’s howl was a mixture of disbelief, anger and ecstasy as her prick throbbed, firing shot after shot of thick come deep inside the human beneath her — though it wasn’t a patch on Celestia’s legendary loads, the young alicorn produced much more than a human’s, or even a normal horse’s emissions.

Mary watched as her belly swelled with the deluge, until it looked like she’d swallowed a beach ball. She felt chilled to the bone, as if the magical fluid inside her was right out of a deep freeze, and she marveled at how different the sensation was from Celestia’s blazing heat. The doctor bit her lip as she felt the backsplash pulse from around the tight seal of her cunt, trying not to let her eyes wander to where the Princess had been thrown. If Twilight’s fearsome expression was anything to go by, Mary was going to need to focus her attention on what was right in front of her.

Twilight stumbled backward, groaning as her softening prick slipped from Mary’s soiled gash. With a flash of light, the magicked prick vanished, revealing the young alicorn’s blown-out cunny once again, still twitching and trembling with orgasm. Twilight’s knees buckled, but she did not fall to the sand, only letting the waves of pleasure roll over her where she stood.

“You…are a devious one, Dr. Parvotti,” Twilight gasped. “Now. Tell me why I shouldn’t murder you and everyone you love. Celestia disobeyed me. You know the penalty for that, don’t you?”

Mary licked her cracked lips. “You’re the one who drove her out of her mind. I can’t control her, and it looks like neither can you. Did you want her to kill me?” The doctor put a hand to her full belly. “Did you want to kill me?”

Twilight hesitated, and Mary could read the indecision in her expression before it settled into resignation. “No. I suppose I didn’t.”

Mary couldn’t help letting out a sigh of relief.

Twilight glowered down at the human. “I do now, however. Take a few more deep breaths, Dr. Parvotti. The atmosphere gets a little thin up there.”

Before Mary could guess what that meant, she felt her body growing lighter. Her butt left the sand, along with the rest of her as it floated into the air, rising higher and higher, faster and faster, until she was falling into the sky, her arms and legs flailing uselessly. For a precious moment, she could see the tiny figure of Twilight staring up at her from the dwindling island, then the young alicorn shrank into a speck, while the curvature of the planet stretched out into a full, horrifying panorama.