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Corruption of the Slimes

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Written by Arian Mabe (Amethyst Mare)

Commissioned by anonymous

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A continuation of Becoming the Slime Queen.

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"Oh, Fluttershy, you really shouldn't have done that for us."

Rarity smiled, relaxing on the sofa while Fluttershy hovered, though her friend did look quite different to how she used to. That wasn't all that strange when it came to ponies, after all, for there were always bits and bobs of magic floating about to change their form and shape, however they pleased, but Fluttershy... Rarity shook her head, her smile tightening. A lady's figure was not a subject that one broached lightly and even Rarity was not quite sure how to play it off as she worried about Fluttershy's larger hips, how there seemed to be more "down there", to put it politely, though that just wasn't polite to mention at all! Even her breasts were larger too, dominating her figure, though those were, by far, the most normal part of her changes that Rarity could pick out of the mix.

"It's no trouble at all, Rarity, I wanted to do it."

The item in question sat on the coffee table before them, although Fluttershy had not yet touched her coffee, leaving it to cool. It was not Rarity's fault, after all, that she didn't know that Fluttershy would no longer need or want to drink coffee when other things drove her onward. The taste of food and drink no longer would hold much appeal and meaning to her, not while she had the slime dominating her, the essence of the slime queen herself turning her into the slime queen in pony form.

Of course, Rarity was not to know that and fudged and faffed, waving her hand delicately, striving to find a way, oh, any way, that she could bring up Fluttershy's changes that would not be seen as uncouth. However, the brightly wrapped gift that Fluttershy had brought, box-shaped, of course, offered a distraction as they talked, resting on the small table by the door of Rarity's tastefully designed living room.

Living there with her sister Sweetie Belle, who had long ago grown out of being the little filly that Rarity adored, the sisters had found a life for themselves in the growing town of ponies, though they still enjoyed visiting their parents from time to time, as many did. The thing was, despite the passing of time, Sweetie Belle's curiosity had not depleted in the slightest or tempered as she peeked around the door.

She suppressed a giggle but she had nothing to fear as Rarity was so wrapped up in conversation with Fluttershy that she didn't notice Sweetie taking the box. One moment everything was normal and the next Sweetie's pale-coated hands flashed out, snatching it up and whipping back around the door frame, out of sight.

The pony bounded up the stairs with her heart in her mouth, for the tag on the parcel had her name on it and, really, who was going to tell her that it was rude to open it. Of course, she would have to go back to thank Fluttershy for the gift at the end of it, but she was too excited to have a present and to open one, something that didn't usually happen except for birthdays and Hearth's Warming Eve. It was a delight to enjoy and she tucked her curly purple and pink mane back behind her twitching ears, not able to keep the grin from her face as much as her tail twitched back and forth through the seat of her jean-shorts.

"What... Come on..."

Sweetie Belle pursed her lips, trying to slide her finger under the ribbon sealing the gift shut, though it seemed to have been stuck down with something, although she couldn't see any tape. She wasn't going to open it fully, sneaking it back before the two slightly older ponies realised that it was gone, so she had to take extra care. Fun and games were all well and good as long as she didn't get caught and the gift would have to be immaculate when she put it back on the table.

She grumbled under her breath, trying to work it free, but it was the lid that popped open, cracking a little, though it was too dark inside (of course) to see what was there. It was hollow but for something heavy that lay on the bottom of the box, however, the ribbon keeping the lid mostly in place as she flopped back on the bed, holding it up, trying to see. If she tilted it just right so that the light fell into the slit...

But it was not her interest that entered the pink and blue box but a slime that erupted forth, a wriggling, slithering serpent that lunged for her with the intent of a creature with a single purpose in life. Gleaming in a deep, royal blue, the slime made not a single sound as it came for her, easily squirming through the gap in the box, Sweetie Belle gasping, hands flying up, box tumbling to the floor.

She grabbed for it, holding back a shriek in her shuddering chest, yet the pounding of her heart could not be quelled so easily as the strange substance slipped through her fingers, like living jelly. It squirmed and writhed and lunged for her all the more determinedly, landing on her chest, a little of the top curve of her breasts exposed by the low-cut shirt she was wearing, not expecting to have to be dressed for the outside world that day. She had not expected visitors, much less one that was so interested in her, and she broke out in a cold, dripping sweat as she grabbed for the slime-serpent all over again, holding in her squeals as much as her throat ached.

"Sweetie Belle - we're going out for a bit!"

Rarity called up the stairs, Sweetie Belle left alone with the slime, slithering over her breasts and dripping through her fingers, though it still held its shape, which was something at least. If it made a mess, they'd find out all the more swiftly that she'd taken the box without them seeing, even if it had been for her. Sweetie Belle cursed under her breath, dimly aware of shouting something that sounded normal back at Rarity, the house to herself while the slime wriggled between her breasts.

She couldn't let Rarity know what had happened, what was happening, even as the writhing slime-serpent jostled her off the bed, landing on the carpet with a thump that should have resounded through the whole house. But there was no one left there to hear her as she shrieked, the slime rushing down her front, making a long tentacle-like shape down between her breasts. It but a moment, it had somehow managed to worm its way into her underwear, revealing to it that she was just like the other ponies in Ponyville in that she possessed both male and female genitalia, making her a hermaphrodite just like Fluttershy and Rarity.

"What are you - help me!"

There was no time for her to work out what the slime wanted as she tried with all her might to get it out again, scraping at her clothes and tugging even as the slime wriggled about in her underwear, pressing up to her soft length in the strangest of ways. Squealing and screaming, she fought to get her trousers off along with her rather demure panties (well, it wasn't as if she was expecting to impress anyone with them that night so pink hearts and stars it was for her) the slime revealed.

Alas, that in itself was her undoing as it coiled around her nuts, cradling her balls as if they were a treasure to be adored, even if it was not only them that the slime-serpent sought. Sweetie Belle gasped as it swirled and wrapped itself around her cock, longer and more flexible than she had realised when it had been in the box. Yet she didn't have time to work out how to get it off her genitals as it reared back like a snake and shot down her cock, forcing itself into the slit at the time to burrow deep.

Time slowed, Sweetie Belle's eyes practically bulging out of her skull in a way that could have been comical under less dire circumstances. The slime wormed its way down her shaft, the thickness of her length easily swelling to accommodate it as it penetrated a hole that she had never before considered using in such a way. Breath caught in her throat, opening and closing her mouth several times over before her voice, or some broken semblance of it, was returned to her. Slime oozed around the head of her cock as it squelched noisily and lewdly into her like some sex act, as if she was in the throes of passion, but there was nothing passionate about how it penetrated her.

Slick and practically drooling with slimy enjoyment, knowing that its purpose was being completed at that very moment, the slime penetrated her shaft deeply, forcing its way through until it found her balls, pooling into them, despite the end of it remaining outside. That didn't matter though as it wriggled and squirmed, finding itself trapped and yet exactly where it needed to be. The hold that it had found squeezed around it as if trying to push it out but the slime wasn't going anyway as it writhed, building up to the crescendo of all that it had been sent there to do.

Her shriek was the only thing rooting her in the moment, heart pounding with frantic fear, clinging to the serpent as it sent something into her. It was so thick that it made her cock bulge but there was not a moment in which to marvel at the fact that it did not make her length ache in the slightest, despite it forcing open a hole that was never meant to be penetrated by something so large. The blue slime-serpent wriggled back and forth as if to make itself more comfortable but only it knew what its purpose was, how it was going to transform Sweetie Belle into something that even she could never have imagined.

Sweetie Belle's hands closed around the base of the slime-serpent, clinging to it resolutely, fingers digging into the surface. Fortunately for her, she had enough grip for the slippery, slimy surface to not render her attempts futile, though the slime was already in position and she may as well have given up right there and then, for her fate was sealed.

Sweetie Belle gasped and squirmed, twisting her head back and forth.

"Mmmmph... Oh..."

Those sounds didn't seem quite right coming from her lips but she no longer felt as if she had any control over her body as she tried with all her might to wrench the slime back out. Something poured into her, pumped forth, yet she could not tell what, her balls aching, growing before her very eyes.

What was happening to her? She wanted to touch her balls, to see just what was changing, what was being forced into her, but she didn't dare let go of the slime-serpent, even though her efforts were futile. For the slime was one of the slime queen's very own creations, designed entirely to create more and more slimes just like itself, filling her nuts and cock with them, bloating them up and out, more and more and more...

She squealed but the slimes were already multiplying, the blue slime that had started it all the main instigator, spilling forth more and more as they grew from its body, pouring forth in an unstoppable horde and flood. There was nowhere for them to go but deep up into Sweetie Belle's balls, forcing them to inflate, skin stretching and straining to take every last one of the slimes that pumped them up so drastically and dramatically. As much as her hands came down on her nuts, one still gripping the slime furtively, she could not squash them down, terror coursing through her as her mane clung to the back of her neck with sweat.

"No..." Her breath came shortly and sharply, clawing at her throat. "No, no, no, no, nonononono_no_!"

But she couldn't do anything, watching on in horror, a passive player in her own life. Her balls churned and swelled, though the bloat of them was not smooth in the slightest as the many, many slimes pumped them up. She could see them clearly through the skin of her sack, how they wriggled against and over one another, though the size of them could not be determined. Although she did not have that much time to think, they felt as if they were all different sizes, give or take, digging down deep and bringing with them a tenacious burst of pleasure too.

Oh, it was that pleasure that made the whole thing far more confusing than it needed to be, a little more slipping in as her grip weakened, holding on for all that she thought she had to do. Her balls hung down heavily to the ground, the size of melons, shocking in how they spilt forth, the weight of them such that she doubted that she would even be able to stand. Sweetie made a disgusted sound in the back of her throat, though she had far more important things to think about rather than being grossed out.

Slime... Yes, they were slimy, she decided, though not even the tight grip of her digging, prying fingers could withdraw the slime from her dick, the length standing up as if it was hard but she couldn't even tell if it was at that moment or not. Nothing made sense and her body was no longer her own, no longer under her control as she gasped and shuddered, breasts heaving in a roll of breath that did nothing to ease the tightness in her lungs. Her muscles contracted, tightening where they tried to protect her, not knowing that nothing in the world could protect her from the wrath of the slimes as they burrowed in deep.

Her balls bloated, swelling as the slime-tentacles wriggled within her, seeming to plump and grow as they feasted on something. It was hard to say, at least in her case, just what they were doing to her body as she whimpered and groaned, glancing desperately at the door, even though no one was there or coming to rescue her. She could not have possibly been expected to know how slime-infection worked, how it was focused entirely on her nuts and all that it could take from them, letting them swell larger and larger and larger, churning and rippling with bubbling slime.

"Oh... Oh, no..."

She shuddered and trembled, head tipping back, wriggling so that she was against the side of the bed, although that was a faux sense of support. There was nothing that could support her as the serpent pumped its load deep inside her nuts, her cock swollen and bulging, though at least that was constant. The churning pulse of her balls was something that claimed her mind even then, the roughness of the old carpet under her bare backside hardly a sensation, even then, that her mind could drift to.

Pump.

She licked her lips, turning her head quickly from one side to the other.

Pump.

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It didn't help.

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Pump.

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The slime-serpent wriggled deeper, the mare losing her grip a little more on it as her legs spread.

Pump.

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How much more could she take as her nuts swelled, as large as footballs and swiftly growing, at least to her eyes? Everything was heightened and, trembling, she brushed her balls with the fingertips of her free hand, holding on tightly to the slime-serpent with the other, though she should have known that there was no sense in resisting. As it corrupted her, infesting her nuts with slime, the rippling, bubbling surface of her nuts bloated out more and more, tense and unyielding as her body was forced to accommodate far more than it was ever supposed to.

That was far from the end of it, however, as she nipped at her lip, tucked her head down to her chest, tried to think of something else, anything else, something that could take her away from the moment at hand. Yet the pleasure was far, far too great for even her to ignore, her cock throbbing as if she had both hands wrapped around it and was pumping furiously. She had been a moderate size before but the slime-serpent was already set on making changes to her body, inflating her shaft a little more, even then, to make it a more fitting size for depositing its slime down. After all, her cock would have to ultimately match her balls when it was good and done with her, the length large enough and thick enough, the girth swollen, to be able to spread the new slime in her nuts further than ever before.

She tried not to feel it, she really did, grasping and clutching at the bed sheets and dragging them halfway off her pretty, pink bed. But there was nothing she could do, helplessness washing over her in tangent with pleasure, ecstasy prodding and probing at the back of her mind. It begged to be let in and Sweetie Belle whimpered, shaking her head over and over, even though it was inevitable.

You're going to give in anyway.

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The pony could not have said whether that thought was her own or not but she could barely understand it, panting and huffing, cheeks puffed out comically with breath. Yet not breathing fully and evenly was not going to save her from the insistence of the slime-serpents as she groaned deep in the back of her throat, losing control as a little more of the slime slid into her cock, her fingers digging into it deeply.

Her horn glowed, sparking out flutters of blue magic, orgasm pulling at her mind more and more urgently. Yet, still, she didn't want to give in to it, the ecstasy that was coming whether she wanted it to or not. Snorting, she wrenched her head back, squeezing the slime-serpent more vehemently, even trying to drag it out even though a part of her mind knew and understood fully that there was no point, no sense, in that.

And, when orgasm came it was the most blissful of them all, her shriek echoing through the empty house that she could no longer decide whether she was thankful for or not. If someone was there, maybe they could have stopped the corruption, but it was all lost and done, the slime-serpent wriggling a little deeper still, only a fingers width remaining outside Sweetie Belle's cock. The pony whimpered and moaned but was entirely unaware of just what was happening to her as the slimes slurped up her seed, devouring it as swiftly as her body was able to produce it, taking all the nutrition and sustenance that they needed from that part of her body. It was, after all, just what they were designed for.

The mare's head fell back shakily against the bed, shorts and underwear tangled somewhere around her ankles, just above her feet, though she was too far gone to even think about pausing to remove them completely. All there was for Sweetie was pleasure, wave after wave of it swamping her, drowning her, sweeping her up and away in a tidal wave. Her reality was left behind, the world that she knew and love, knowing only pleasure - the pleasure that the slimes gave her as her nuts throbbed and ached, churning with a delirious load of slime.

The slimes relished in it, even the one within her cock, the instigator of it all, squirming delighting, relishing in all that it could do and would do to the pony that would become its host. She would lose all sense of herself, in time, dedicating her life and body to the slime's cause, the cause of the Slime Queen who would lead them forth. That was all that the slime knew and it squirmed within her nuts, having wriggled down the majority of her cock, her fingers finally losing their grip on it as it slid fully into her nuts.

Sweetie knew nothing of that, tipping to the side and slumping to the carpet as her hips rocked demandingly, hands on her cock. She pumped and stroked her own length as if her life depended on it, knowing nothing else. Oh, it was there, she knew it was, the pleasure that she had to take, if only she could reach out and grab it for her own. After the first climax, all she wanted was another one and another one, the slimes working their influence on her, changing her as they pleased. The size of her cock remained inflated, thicker and meatier, after that first orgasm but there were so many more to come that Sweetie was surely a fool of a mare to think that, maybe, that was all there was to it.

No... No, there was so much more, orgasm after orgasm fighting and striving so very desperately to flow forth, although the slime plugged up her cock so perfectly that it had nowhere at all to go. It was forced to be devoured by the slimes, the wriggling, fattening serpents, eating it all up so that they could grow, their power developing, taking over both her body and her mind without the pony even knowing. It was more than she could have imagined, more than she could have ever wanted, but it was beyond anything that Sweetie had thought was possible, ejaculating seemingly nothing all over again. Her lips were parted without any sound coming out, throat dry and raspy, yet she simply could not stop bucking and thrusting her hips, rocking and humping and grinding as if her life depended on it. Who knew, maybe it did?

She just had to keep thrusting, she thought through a haze of sweltering pleasure. If she did that, kept doing that, everything would be okay, everything would come right. She knew it would, dreamed it would, pushing on more and more, a moan on her lips, however faint it was. There was so much for her there as her balls ached and tingled strangely, every sensation new to her. Her hands flattened over her nuts, feeling how they rose into wriggling lumps with the slimes inside slipping and slithering over one another, intent on their mission, even if she did not know what that was. They wanted her, wanted to use her, and there wasn't a damn thing she could do about it as her cock ached and pulsed.

How many times had she cum? Her head swam. Sweetie didn't even know whether it counted or not if no seed came out, whether that was an orgasm or not, but it was hardly as if that mattered anymore. Nothing mattered except for the slimes, her mind fogging over as if she was sinking, though she was quite in place on the floor of her bedroom. Even her sense of where she was in the world slipped away, bit by bit, the pony hardly able to retain any kind of grasp on her own reality, for it was not as if her life was to be her own anymore.

The slimes squirmed, twisting and curling through her nuts with obvious relish and delight. They didn't' care for the pony they were taking over, only that her body would prove to be a suitable host of them. Out and out, her nuts were forced to swell, skin tightening, straining, while the slimes altered her body so that it was just a little bit more flexible, allowing the stretch. They could do anything to her, anything at all, and there was no limit that the slimes could not pass in their quest for debauchery, wickedness that, of course, was all in the service of the slime queen.

Her balls inflated to the size of fully-inflated beach balls, what she had once played with on the beach with Rarity in her younger days, though they were no longer living anywhere near the ocean. It was a dim memory, although a good one, and Sweetie clung to it as she whimpered, her nuts slopping and squelching lewdly as the sheer volume of slime within them weighed them down. They could not help but rest on the carpet between her thighs, her feet kicked out wide, and the pony moaned, head rolling from one shoulder to the other, her need unparalleled.

More...

She pumped her cock, both hands around it, not even realising what she was doing, that she was succumbing to the worst and the very best of the slimes. Her nuts were squashy under the brush of her hands and yet she could not find it in herself to care as wave after pulsating wave hit her, swamping her, drowning her. The waters closed above her head and the whirlpool sucked her down, though it was not her destiny to ever again break the surface of the water in any way that could bring life and air back into her lungs.

No, she belonged to the slimes. And that was just the way of it, how it would be for the rest of her life.

Her balls were not yet down as her nuts inflated, blowing up more and more, each orgasm, one running into the next, forcing them larger, bigger, rounder. As they grew, their shape evened out a little and Sweetie whimpered, pausing in groping and pumping her shaft to run her hands over them, feeling how smooth they were, though it was quite as if something was trembling inside: the slimes. They produced their own slime too as they wriggled and squirmed, though that slime was not sentient like the slimes and merely served to cushion them within her nuts while they slurped up her seed as if it was the finest treat of all. To them, dancing back and forth, their bodies teasing over one another, it truly was.

The main slime, the blue one that had instigated it all, observed all, adding more slime-serpents where needed, though they were mostly self-sufficient by that point. What they were born to do was imprinted into them as they devoured more and more semen, her body forced to produce it overtime, all so that they could feed and lust over her all the more, abusing and using their host for their own purposes. As if they could ever have been any other way...

Eventually, however, there was no more cum to give and everything that she was forced to produce by the slimes in a heaving, gasping, dry orgasm came without a drop of seed. The blue slime plugged up her cock nicely so that not even a drop of seminal fluid could escape either, leaving everything for the slimes, even though Sweetie did not know that they were still forcing her body to produce seed. It was that too, in part, that plumped up her balls even more, inflating before her eyes, until they were double the size of those plastic beach balls that had brought such fun before. They wobbled and she moaned as she brushed her fingers over them, the skin strained taut as her nuts bulged.

"Oh..."

Time passed but Sweetie Belle was hardly aware of it as she let everything happen, her world narrowing to that of pleasure. Of course, she could not have said that there was any pain to be taken at all for the slimes were not in the business of causing it, yet there was a strain to be had too in being forced to climax so many times, over and over again. To say the least, her body was not designed for it and the slimes reinforced that in her, her muscle and stamina where needed, allowing her to brace, rock and grind, all for their pleasure and intent. For there was still more to come and they didn't want to work with a host that had passed out from pleasure, even though they could have.

Her shaft pumped up nicely, though she didn't even have the strength left to bring her hands to it, flat out on the ground, moaning out loud. Sweetie felt as if she was wriggling but that was truly hard to tell when her body ached so much, when there was so much going on all at once. She groaned and twisted her head back, trying to work out the kinks in her neck, but her mane was stuck so firmly to the back of her neck, soaked in sweat, that even that movement alone seemed like it was too much for her.

"Sweetie Belle! We're home!"

Who was that? She didn't even remember or recognise the voice, not when things were spinning dizzily around her, twisting and turning in such a way that it was hard to place anything, let alone herself. She parted her lips but no sound came out, unaware of how much time had passed, the wobbling and juddering rise of her nuts commanding her attention. Her shaft bulged faintly as if something inside was still straining to be free, although that was not something that, even then, she had any control over. She knew well enough by then that her body was no longer her own.

In her mind, there was only the slime.

"Sweetie? Is something wrong?"

She didn't react as her sister trotted lightly up the stairs, although her ears pricked to catch the sound, following the tread of her sister through the house. It was strange to hear everything as if she was hearing it through a vat of slime, everything dulled and muted except for the things that were drawn into stark sensuality. Her nuts ached, the slimes squishing and sloshing about within with a low, wet sound, Sweetie Belle's breath hitching as she tried to roll onto her side and failed. She was stuck there, her heavy nuts pinning her in place, waiting on her sister to burst into her bedroom.

"Sweetie, what is - oh my goodness!"

That was as close as Rarity would get to swearing though the shriek that assaulted Sweetie Belle's ears a moment later did have her pinning them back in an involuntary reaction. Some things could not be helped even as her sister lunged for her, propping up her torso, though there was not much that Rarity could do for her either. Following Rarity into the bedroom, Fluttershy the slime queen, affected a look of concern, hands clasped before her chest.

"Oh no..." She breathed, eyes as wide as she could make them without letting her glee show. "What could have happened? Sweetie Belle? Sweetie Belle, can you hear me?"

Sweetie Belle could not hear them, however, or if she could she did not have the capacity of speech in that moment, panting lightly, her tongue pushing out very softly over her bottom lip. She would have normally have breathed through her nostrils, hating other ponies that had their lower jaws hanging slack to gulp in air while going about their daily business, though it was not her place, not really, to judge on that count. Not anymore as she took in what air she could, whimpering and moaning, another orgasm wracking her.

Her cock twitched and flexed, nuts still growing, rising so far that they almost blocked out Sweetie Belle from the right angle, though the ponies there had not a clue what to do about it. Before their eyes as Rarity squealed, her cock throbbed up larger and larger, the slimes fixating on it as they pumped it full, forcing it to grow until it drooled blue slime and was more than large enough to engulf a fully-grown stallion inside. It twitched and pulsed visibly as if it was about to let loose with another orgasm right there and then but Rarity was not about to let her sister be there alone, tightening her grip on her sister's shoulders even as Sweetie Belle's head rolled back against her.

"Sweetie Belle, come on, darling," Rarity said, doing her best to speak slowly and calmly, despite how her heart pounded, palms sweating. "Something's gone terribly wrong but it's all going to be okay, dear, we've just got to get you to the doctor... Or maybe it would be better if we got Twilight here first. What do you think, Fluttershy? Fluttershy, this is no time to stare - we've got to help her!"

Yet not even Rarity could completely keep her cool under such circumstances, stomping and shrieking at Fluttershy even as their friend held back. They could not have known that Fluttershy was the slime queen and not a pony, any longer, to be trusted, one who had turned against them in the cause of the slimes, taking over herself. But Rarity soon would know, even if they would no longer care once the slimes had fully corrupted them.

"Oh..."

Fluttershy strove to act like herself, though it was difficult with such glee in her heart, flapping her hands and coming in closer, helping Sweetie sit up a little more. The pony's cock jutted straight out ahead of her, taller than even she was while standing, and it was all Fluttershy could do to keep her giggles in check. That would have been unlike the real Fluttershy, the one that had come before the slimes.

Sweetie's urethra seemed to throb right there and then as she groaned, feeling their hands on her but not understanding what was happening, what they were doing to her or even trying to do. The pony's head lolled back against her sister's shoulder but Fluttershy was there, holding her hands, squeezing them lightly, rubbing her thumbs soothingly over the back of them. It was all she could do, after all, to help Sweetie Belle through the moment and into something better still.

Sweetie, however, could not relax, no matter how soothing Fluttershy's tone was, her voice washing gently over her. Her balls ached, constantly shifting and moving with the creatures inside, and panic gripped her even as Fluttershy spoke softly, tightening her grip on Sweetie's forearm.

"Now, Sweetie, I know this is a strange thing but it's going to be okay, do you understand? I think your sister can help you, then we can get you safe. Nod if you understand me, Sweetie."

Nodding faintly, Sweetie Belle struggled to open her eyes, another orgasm wracking her while her hips could not even thrust and jerk.

"That's good, don't worry now, we've got you."

"What do you mean I'm going to help her? What do you need me to do?"

Rarity gulped, tying her purple hair back in a tousle of curls as if she expected to be doing something pretty extreme, though she could not have anticipated just what Fluttershy had in mind for her, not even then. Fluttershy pressed her fingers to her lips, covering her smile while she feigned being in thought, giving a small, decisive nod.

"Rarity, we can help her but we have to get that _thing_out of her first!"

Fluttershy's tone was so urgent that Rarity was caught up in it, her expression resolute, a muscle jumping erratically at the corner of her jaw. Anything, yes, anything, she would do absolutely anything for the sake of her sister, always her sister.

"What - what? What do you need me to do?"

Fluttershy pursed her lips.

"It's strange... But it'll help, I'm sure. You'll be better able to take this creature than her, then I can inspect it when it's out of Sweetie Belle here. Put the tip of your shaft against hers."

"What?"

There was nothing quite like a Rarity shriek as she gaped and gasped like a fish out of water (not her best look, to be fair), but Fluttershy already had her hands up, staving off questions.

"No, no - wait! I mean, it'll bait it, get it to come out, thinking that there's another host or something. I don't know, Rarity, I've never dealt with a creature like this before!"

"You mean there's really something in there?"

Fluttershy shrugged with her best feigned helplessness.

"Can't you see it? It's squirming all over the place like a snake."

And Rarity could too, even though she had not wanted to believe it. Who would have wanted to believe that there was something alive inside their sister?

"When you do that, maybe it'll think it has another target and we can catch it when it comes out!"

That sealed the deal for Rarity and she tried not to think of her decency and dignity as she wriggled down her skirt, for she didn't want the cloth getting in the way or, heaven forbid, dirtied doing what she had to do. It was a lovely skirt, one that she wanted to wear again, though it still brought a hint of colour to her cheeks to be nude or near enough nude in front of Fluttershy. No matter though, not when it was her sister's wellbeing at stake, for she would do anything to help that.

Her underwear slipped down, something tasteful but perhaps not what she would have wanted to show off to Fluttershy with the seductive cut across her buttocks, but she did not remove them. They were her last vestige of privacy as she nodded to Fluttershy to hold Sweetie up, soothing her while Rarity did the need.

"I really hope this works..."

Tentatively, Rarity took her shaft in one hand, waving it near Sweetie's cock, equal amounts of embarrassment and silliness coursing through her. It was weird, what she was doing, standing there as if she thought that she could help her sister by flaunting her shaft about. Just what did she actually think she was doing? It didn't make sense, none of it, but just as that realisation teased through her mind, the slime-serpents struck.

It happened too quickly to stop, the slime-serpents pouring forth in many shades of blue, appearing like a wave as they flowed forth for her cock - for her! Rarity shrieked and lunged back but Fluttershy was there ready, shoving her between her shoulder blades and driving her shaft straight up into Sweetie Belle's oversized one, the huge length of cock easily taking Rarity's far more moderate one. Something slick and clingy oozed around her shaft from the inside as Rarity gasped, the blue plethora of slime-serpents that she'd thought she was there to coax out having stopped, yet she could feel them cramming up against her cock, wriggling and squirming wetly. Rarity shuddered. And now they wanted to get into her! Her shaft and balls! What in Celestia's name had the world come to?

"Fluttershy!" She shrieked, flailing, still trying to do all she could to avoid bumping Sweetie's cock, for that was too much sisterly closeness for her! "Help me! What are you doing just standing there? For Celestia's sake, help me!"

But Fluttershy was not there to help her when she needed it the most, smirking as she stepped back, for Rarity would not know what had happened soon enough or at the very least would not see Fluttershy as the enemy. How on earth, after all, could Fluttershy be the enemy when she was the slime queen?

"Don't worry, Rarity," Fluttershy said softly, wings flapping a little, cooling and stirring up the air in the room. "It'll all be better soon, I promise. The slimes are coming! Everything's going to be alright, for everyone! The slimes need a home too!"

Rarity blinked at her, not comprehending her words, but it was too late for any of that as she was forced to half-hug her sister's cock to her body, feet kicking out as her underwear slid down more and more, straining above her knees as if she had a resistance band in place. If things had not been so dire, it could have almost have been funny, Rarity humping and grinding inadvertently as she sought to free herself, breath catching in her throat.

"Oh... Oh... It's..."

The words would not come but nobody cared whether they did or not, for everything was still yet to happen without Rarity's consent. It was coming as the slimes poured forth, wriggling and squirming in pure delight, finding her urethra and bearing in, forcing her passage to open up around them. Rarity shuddered but her sister was the more vocal of the two of them as her nuts trembled and practically vibrated, a mountain of balls heaving and shuddering as if they were well and truly about to blow.

"Oh... Oh, Rarity! Rarity, help me!"

No crying out would change her fate as much as she wanted another one, squealing and kicking out weakly, the weight of her colossal nuts holding her in place. Her cock was trapped and stuck around her sister's shaft, leaving her nowhere to go, and Sweetie's breasts seemed to grow heavier still in that moment. There was not much time for her attention, however, to divert from her headily aching nuts, how they pulsed and trembled, the skin of them rippling derisively as the slime-serpents went wild. They were restless, pushing on and out, shifting and rumbling, every last one of them seeking something more. But what?

She could only tell just what that was as the strangest sensation of something moving coursed through her and she howled out something that may or may not have been broken, she simply could not tell. Sweetie Belle's nuts heaved and jerked as the slime-serpents violently poured forth, knowing only where they were going and perhaps not entirely how to get there. They juddered and "punched" up through the skin of her nuts, striving for freedom, yet it was merely the freedom to affect another host that they sought, pouring down her shaft, funnelled there.

But that host was Rarity, a pony who had never wanted, much less consented to such an act, whimpering and howling as pleasure erupted through her, her sister's cock wrapped around hers. The insides of her ears heated up as she thought that her sister was climaxing too but that was by the by in the grand scheme of things as the slimes rushed from Sweetie's cock and straight up into hers. Her narrow urethra and tunnel down into her nuts offered them absolutely no resistance at all as they swam and wriggled, seeking out one thing and one thing alone, pushing on and on, knowing only one goal. Rarity's cock plumped up quickly to accommodate the rush of slimes as more than one at a time shot down her cock, every one seeking out her own nuts, a moan on her lips that was not entirely of dismay.

"Oh... Ohhh..."

Rarity shook her head, trying to ease the heat from her cheeks even though it was to no avail. There was no getting out of something like that as they pulsed forth, her shaft aching to accommodate them, the strain and the stretch of her cum-tube something that she had never considered. Sure, she'd seen a little strange porn online from time to time when she was just a little bit more on the lonely side but not even that was something that she had ever actually considered doing to herself.

It was strange but there was pleasure to be had there too as the slimes squirmed their way straight down into her nuts, bloating them up more and more, just as they had done to Sweetie Belle in the first place, presumably. Alas, things falling into place then was too late and Rarity clung to all she could, even her sister's oversized dick, striving to find what it was that would root her there, make her feel as if she was more present in the moment than, even then, she actually was.

Not that she wanted to feel everything, she thought vaguely, gallons of slimes pouring into her, the slime-serpents wriggling in two or three or more at a time, not patient at all. No... But maybe if she could think a little more clearly she could get out of the situation she was in, everything playing out before her eyes as if she was a passive player in her own life. It could have been a cheesy horror flick but, if it was, Rarity wanted no part in it, arching back with all her strength and letting out a long, low groan.

Any efforts, however, were well and truly in vain as the slimes thickened within her, Rarity freezing, shoulders stiff, a sense of paralysis coursing through her. There was nothing she could do, nothing at all, only look on in horror as her nuts plumped up more and more, just like Sweetie's had been. Her nuts did not deflate all that much in size, though there was a little less lumpiness to them as the slime-serpents evacuated the space of her balls in one go, leaving them filled with slime and churning.

Sweetie Belle was barely with herself, vaguely aware of holding Rarity's hand and clutching it tightly, though she could not have told just whose fingers were digging into whose hand. It was all wrapped up together and they could not separate when they were joined in the most intimate of fashions, need coursing through with every pump of Sweetie Belle's cock. The slimes pouring forth gave her the sense that she was ejaculating, the strain in her nuts easing just a little, though there was still something sloshing around in there, something that she would only find later.

It could have mattered that things were not as they were but all Sweetie could do was grind weakly and moan, orgasmic pleasure swamping her, dragging her down into debauchery from where there was no return. Dry-cumming was by the by, pleasure escalating, each climax of hers sending another glob of slime-serpents into her sister, slithering and wriggling down to her nuts, from one to the other. They had to go there for there was nowhere else to go as they pumped up her testicles as if they were, quite literally, attached to a hose, liberally inflated as her body was simply used and no more than that.

More and more... They quickly reached the beach ball size of Sweetie Belle's, as hers softened a little more, but Sweetie's were still even larger than Rarity's balls. there was still so very much to go and there was only one way for her load to be spent and that was for it to be devoured by the still-growing and multiplying slimes. Of course, her body would not relinquish every last one of them even as they reproduced, so many of them that they could have infected a whole herd of ponies, let alone simply Sweetie Belle and Rarity. Sweetie squealed and kicked out as more and more slimes left her, Rarity's balls inflating, the slimes wriggling and squirming all over, the surface of her nuts lumpy and uneven.

They weren't shy about hiding but the slimes wanted to wriggle deeper still into Rarity, pushing against the lining of her nuts where it was possible to meld through into the rest of her body - without harming the host, of course. They wormed their way up, deeper and deeper into her body, Rarity rocking and groaning, doing absolutely everything and everything she possibly could in the moment to make it easier for herself. Her paralysis faded but all she could think of was the slimes, how her hands twitched, trying to push her cock out of Sweetie Belle's, even though, of course, that was an utterly futile endeavour. Ponies were still apt to futile endeavours, however, at the point at which their need rose so greatly, fear twisting through with spine-chilling accuracy.

She whimpered and rolled her head from one shoulder to the other and back again, arching her back, straining with all her might to push away, her nuts bulging more and more. Every little thing that the slime-serpents did within her balls was felt in stark contrast to everything else happening, the beads of sweat trickling down her coat, making her shiver, torn between conflicting emotions. There was pleasure, yes, that much was true, and her body tried to orgasm even then, though Rarity could not be sure whether it was a true orgasm or not.

Not much at all was sure anyway, not to her.

Rarity moaned, letting it all out, eyes opening to see Fluttershy standing there, over her, seeming all the more dominant and imposing than she ever had been before. There was no question as to who was in control of the situation, although Rarity could not have said just how all of it had happened, grunting and whimpering, helpless as her nuts inflated, growing to match Sweetie's perfectly, each one larger than at least two beach balls put together and still churning. They were huge and duly so to hold all the slimes that Fluttershy wanted her to, her friend standing there with her hands clasped as if she could not believe just how well her plan was going.

It was her first foray as the slime queen and she flapped her wings delightedly, drinking it all in as the slime within her body churned and wriggled, wanting to be part of it all too. But that would come soon, very soon, she was sure of it, knowing that the slimes were only trying to live and have a life too for themselves. There was nothing in them that could be construed as bad, she was sure of it, but she had been living as the slime queen for so long that she was, in a way, learning to be more and more sympathetic to their cause, as much as that may not have made sense to her before. She was, after all, still a pony as well as the slime queen, though she had her subjects, so very many of them, to look after and provide for that she could not afford her attention to be elsewhere, not even then.

"Give in to it," she whispered, licking her lips deliriously as Rarity's stomach bloated, the slimes working their way deeper and deeper, infesting her entire body. "My little ones... Oh, you're doing such a good job."

It was up for debate as to whether she was talking to the slimes or Rarity and Sweetie Belle right then and there but, frankly, it didn't matter. They were there and in it for the long haul whether they liked it or not. Her body was there to be used and Rarity's shirt pushed up and up and up as her belly blew out, a smooth round of it only interrupted by the squirming tentacles of slime wriggling and pushing back and forth constantly. Of course, they had to go deep in order to do the work of the slime queen, although the ones in Sweetie Belle were trying to do the work at the same time.

More and more, they felt the slimes work their way deeper, Rarity's stomach heavy and dragging her down, the sheer weight of the slimes within her demanding that she pay attention to them. Although she was up on her feet, crouched there awkwardly, there was no burn in her thighs as the slimes wiped that away from her, a whimper coursing through, an ache and a twinge. She had to cum, had to cum so badly, though her tits were next to inflate, the slimes wriggling higher and higher, watching in horror as even her sister's body expanded before her, heavy and slick. But where were all the slimes coming from? Weren't they all coming from Sweetie's balls?

The slimes had an ulterior motive, however, reproducing and leaving non-sentient slime behind to work away while they expanded, working on a new host, though that was something that the ponies in question would only come to learn later. They didn't need to know as Rarity's breasts sagged down lower and lower, swelling with the nipples too growing fatter and thicker, better-suited for the cause of the slimes, her body a toy to simply be used as they willed. She was, after all, no better than drone-mind and a host at that moment, even if she did not know it yet. Rarity and Sweetie Belle would never need to know that.

Finally, Sweetie Belle shuddered and gasped, having dry-cum so many times that she'd lost sense of herself, squirming back, the slimy grip around Rarity's cock, within her shaft, releasing slowly in a lewd, wet slurp. The last of the slimes, the ones that had hung back, lingering in their preferred host body, poured and splattered all over her sister as Rarity gave a broken shriek and fell back to the ground on her backside. Rarity's hands could not even come up in time to ward off the slimes, however, splattering all over her tits and sliding down her stomach, the round of it providing them with the perfect landing ground.

Sweetie Belle's nuts were devoid of seed as all of it had been devoured by the slimes, their strength growing, the skin of her sack lighter and sagging, drooping where they no longer had something to bulge them out. The wet wriggle of slimes pouring forth were not to be dissuaded, however, as her nuts instantly started to fill up again, inflating the skin that had drooped, her body primed once again to be the perfect host body at all costs. All Sweetie Belle, however, knew was that the sensation made her want to cum again and again, ecstasy clawing at her mind, begging her to submit to it.

Sweetie Belle whimpered, her grasp on reality dropping, exhaustion claiming her. She could barely hold herself up as Rarity's hands slowly tried to wipe the slime and wriggling tentacles of living slime from her breasts and the rest of her body but there was nothing she could do. Even as Sweetie Belle slumped back, on the edge of passing out but dimly still within the realm of reality, Rarity could not help herself, begging and coaxing the pleasure within her forth as she groped and massaged her balls, trying to grasp the slime within but not to get them out of her. Oh no... No, she couldn't think of that, not then, only the pleasure that coursed through, her hips rocking and grinding, orgasm prying at the back of her mind so resolutely, demandingly, that she simply had to give in to it.

Fluttershy giggled.

"You'll be a brand new slime-hive," Fluttershy intoned softly, though there was a glint in her eye that Rarity did not like either. "You'll do so well... Isn't this better than shopping and looking at dresses all day?"

Rarity didn't know the answer to that and neither did she care as she moaned out her orgasm, the slime-serpents within her spilling forth and wriggling all over Sweetie's body too, the two of them covered in the multiplied blue serpents, leaving a slick layer of ooze all over the two of them. The slimes were not idle, finding any orifice that they could, sliding down their throats and wriggling into their ears, up nostrils and even into their nipples too, seeking out any hole. Anything would do as they sought out their purpose, driving deep, Rarity cumming all over again while all that was ejaculated from her cock, of course, was the slime-serpents. The slimes, after all, would need the cum that she produced, so the more orgasms her new hive-pony could give them the better there.

The slimes wriggled and Fluttershy watched on with pleasure as her slimes, the slimes of the slime queen, squirmed, infiltrating their minds. Oh, she knew how they worked but Rarity did not and much less the half-unconscious Sweetie Belle as they squealed and screamed, the slimes working their way around their brains, infesting them, controlling them. All Sweetie Belle knew that it felt like her "mind" was being pushed further and further back, becoming a spectator to what controlled her body, feeling everything but controlling nothing.

Rarity fought back through her scream, cum and slime trickling down her tits, a slick layer across her belly. Even as her shaft bloated up, though it was not as large as Sweetie's, still noticeable, she rolled onto her stomach, striving to crawl, arms aching, the slimes dragging her down, holding her back. Ultimately, however, she could not help but succumb to it, pupils dilating, breathing slowing and evening as the slimes, finally, took over completely and utterly.

More orgasms rolled forth as every last one of the slime-serpents that had been unleashed found a hole, whether that was between their legs, their mounts or down their cocks, infiltrating every last corner of their bodies. Their purpose was to infest and infest they did even as Rarity climaxed again, spilling forth cum and even more slimes over her sister, no longer even seeing her as her sister. That part of her mind was lost to her, though it could, in time, return, depending on how loyal she was to the slime queen.

Sweetie was hardly present in her reality, however, whimpering faintly, though a softly serene expression came over her muzzle, knowing that things were okay, yes, they were quite alright. Her hands tried to stroke and jack off her cock but it was too large for her to do that as her tits spilt out heavily to either side of her body, the slimes filling those too, lips parted in a breathy moan.

Everything was alright, she was sure of it.

For all that mattered from that moment on were the slimes.

*

Several days later, Rarity, Fluttershy and Sweetie Belle laughed and chatted amongst one another in Rarity's living room once more, wrapping presents. Into each box, which was meticulously wrapped, went a slime-serpent, squirming and wriggling fresh, though the bodies that had produced the slime-serpents had, for the time being, returned to a more normal state. Rarity and Sweetie Belle, however, were more curvaceous than they had been before with their breasts rising more dominantly out against the front of their shirts, buttons straining a little to contain them. They were not as large as Fluttershy but their balls too had grown, their shafts more difficult to hide, though a skirt or a dress would, at least, help with some of that issue, if not all of it. They would be able to return to their slime-slut forms at the drop of a hat, of course.

"There are so many presents here," Sweetie murmured, her eyes alight and her body feeling lighter than ever, even though her shape had changed. "Oh, these are going to make our friends so happy! Are we going to deliver them all today?"

"Yes, they are, Sweetie!"

Rarity was in a similar state to her as she wrapped another present with a shiny, purple ribbon that complemented her hair, a smile on her face. It was not that she didn't understand what she was doing in packing up slimes for their friends but that the slimes had gotten into her mind, twisting and curling, influencing her so that she simply did not see it as a bad thing. Why wouldn't all of their friends and so many more other ponies too want the presents that they had for them? They were the very best kind of presents, after all, everyone would love them.

Yet what they did not realise as it was simply a part of them was that the slimes would go forth and spread their influence far and wide under the direction of the slime queen, Fluttershy smiling as the packages stacked up, all ready to be delivered. Her body was thicker and stronger than that of the others but that was the way of it as the slime queen, though they did have a particularly beatific, bimbo-like look on both of their faces. They didn't understand the enormity of it all, the slimes having infested their minds, and, still, they did not know how they would soon, truly, understand the cause of the slimes, sympathising with them even without their influence.

Fluttershy's grin widened.

That would come in time. But soon.

Very soon.