Frazzle has spent a lot of time being Rarity’s toilet slave… and that isn’t about to end any time soon. In fact, Rarity wants to really seal the deal, make it permanent… which means she’s going to have to legally make sure Frazzle is no longer even considered a normal pony~ And of course, she’ll make sure her toilet slave gets plenty of use today~

Hello, pony toilets~! This story is the third and final chapter of the Rarity’s New Toilet Slave series - check out the first two chapters on my page! This story includes themes of dehumanization, and lots of dirty stuff - be sure to read the “This story contains” section below so you know what to expect! <3

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This story contains: FxF, toilet play, scat, shit-eating, piss-drinking, farting, branding, dehumanization, degradation, humiliation

Word count: 8423

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	“Mmph… mmm…” Frazzle the toilet slave moaned and groaned as she swallowed and swallowed, heap after heap of hot, slimy, thick shit shoveled into her mouth and forced down her throat. Outside the bathroom, Rarity’s friends had gathered for a sleepover, and it had already been going for a while; Frazzle had serviced Rainbow Dash, Applejack, Fluttershy, and even Pinkie Pie had already taken their turns with the living chamber pot, and not a single one of them had spared any mercy for the poor toilet. Her lips dripped with liquidy brown, her hair matted and covered in shit from being used to wipe, her mouth coated with waste, her belly aching painfully from the inability to digest so many logs of pure pony excrement. It didn’t help that she hadn’t gotten a single chance to chew it - even Fluttershy had demanded that she swallow every one of the pegasus’ surprisingly large logs whole.

	However, the fatigue was not as bad as it might have been in the past. Frazzle had acted as a toilet slave for multiple months now - she was used to this. It was her life; she had nothing else to do but be a toilet. Even her cutie mark reflected that now. Naturally, she’d grown to be amazing at it - her ability to act as a toilet was better than any other toilet pony in all of Equestria. She could swallow loads that were heavier than her whole body; she could handle the smell of the worst farts for hours without fainting. And she’d really learned to love every moment. There was nothing that made her as happy as fulfilling her duty, doing the thing she was born to do - being a toilet and a toy. 

	Still, though, no matter how many times she experienced it, she always had a special place in her heart for Rarity’s waste. 

	Frazzle’s tail swung back and forth as she sat on the tile floor, eyes closed, mouth open as wide as it could be, her head forced against the back wall by Rarity’s ass, the fashionista’s puckered, dirty tail hole sitting finely between the toilet slave’s lips. Every single day, multiple times a day, she was given the honor of being Rarity’s toilet slave, and every single time, it made her feel like she was experiencing a piece of heaven. She lived for this. Only moments after getting into position, the dressmaker began to shit, wasting no time saying a thing to the toilet slave. 

	Frazzle eagerly ran her tongue across the first wide log slowly slipping through Rarity’s asshole, tasting the slimy, bitter, sour coating, letting the entire hunk of chocolate slowly and gracefully exit the beautiful pony’s beautiful behind. The sounds of Rarity’s quiet, unladylike grunts and groans, as hushed as she could make them, were music to Frazzle’s ears. Normally, Rarity wouldn’t bother to hold them back - she only cared to make a good impression on real ponies, and Frazzle was just an object. The chamber pot loved it that way, loved being an object, with a simple purpose of pleasing and serving real ponies who really deserved it, unlike her. A loud glurk exited her throat as she gulped down the first log, lump traveling down her throat, adding to her mucked-up digestive system. 

	“Urgh…” Rarity waved a hoof in front of her face as the terrible smell of her own shit wafted up to her nose. “Be careful today, chamber pot - Twilight has been really excited to use you, and knowing her, I wouldn’t expect her to be, exactly, laid-back in how she does it. I’ve seen some of the things she’s into.” 

	Frazzle didn’t respond - toilets weren’t supposed to talk, though it wasn’t like she could, with the fourth log of Rarity’s load being shoved down her gullet. She practically choked on it as she gulped, over and over; somehow, it was still rare to find anyone who made it quite so hard for her to be a toilet as Rarity. “Lick.” The unicorn’s demand was immediately met; Frazzle didn’t hesitate to run her tongue across her mistress’ wonderful tail hole, licking up every bit of liquidy shit that had been left behind by the ridiculous load, careful to clean it thoroughly enough that she wouldn’t be facing punishment for leaving any behind. 

	Once she was done, Rarity grabbed a bit of toilet paper with her magic, wiped it through her ass, and checked - not a bit of brown in sight. She showed no happiness and gave no praise to her toilet slave - this was just to be expected. She shoved the toilet paper in Frazzle’s mouth, and the chamber pot quickly swallowed it down, even though that was even more difficult than swallowing some logs of shit. 

	Without a moment of warning, Rarity forced her ass against Frazzle’s face once again, shoving her into the back wall with a loud THUD, hard enough that the toilet felt her head spinning and aching. That was only made worse by the sudden release of the unicorn’s putrid fart, right against her nose, the fart cushion quickly inhaling the almost visible haze of murky-brown shit air right into her body, filling her lungs and stomach, feeling her head go light and her stomach churn as the toxins seeped into her flesh. No amount of sniffing Rarity’s farts could ever make her body immune to their sickly effects. She took it as a gift to be graced with such ailment. 

	Rarity went to leave, horn glowing as her magic grasped the handle, but before she exited, she turned with a smile. “Oh, toilet slave, I do hope you’ve been enjoying having your diary here. Just keep being a good toilet, and I’ll have no reason to punish you by turning those pages to toilet paper~ Though, I doubt that’ll be an issue anymore - I can hardly imagine you acting out or failing to serve well, now that you’ve been so thoroughly broken and brainwashed~” Without another word, the beautiful mare exited, her body feeling much lighter and emptier now that she’d shit out so much. 

	As soon as she was gone, Frazzle smiled, happily grabbing her diary and quill, dipping it into the small inkwell on the toilet’s tank before adding to the pages her newest memories, including the dump Rarity had just taken. The journal was beaten and used, half the pages having been ripped out - clearly, it was used for something else before it became Frazzle’s - but still, she loved it. She was eager to write everything she thought of. She kept a detailed log of every time she was used, and who had used her, and what their shit was like, how they treated her, what they did to her. She loved to look and be reminded of how often she was used now - it was even common for some ponies to come to Rarity’s boutique purely to use the toilet pony, and often, they’d use her for even more perverse sexual acts than simple shit eating. Her mistress didn’t even seem to mind that stallions and mares alike would relentlessly fuck her without a thought for her own pleasure. 

	She placed the journal back, having added a small new entry about Rarity’s use of her, along with saying how happy she was that she had the pleasure of being used by almost every pony Rarity called a close friend. Just one more left… she placed the journal on the floor, behind the toilet, mostly hidden from view. Her owner didn’t want other ponies to see any signs that Frazzle was at all sentient or sapient - she was only an object. 

	Meanwhile, Twilight Sparkle had been hearing numerous stories about how fun it was to use the toilet pony in Rarity’s bathroom. The only reason she hadn’t yet was just because she’d not needed to. Now, though… well, she was feeling quite full, and she’d managed to hold it in the whole day just for this. A few minutes after Rarity had come back, the princess stood. “I’m going to go use the bathroom - I’ll be right back!”

	“Have fun~ Don’t be merciful to it, now~” Rarity said, chuckling.

	“Don’t worry, I won’t~” Twilight walked towards the bathroom door, magic grasping the handle. “We used to have toilet ponies at my magic school, too - it was Celestia’s highest form of punishment for anyone who was old enough for it~ I was always sure to use them whenever I could~” 

	“Really? I never would have guessed!” Rarity responded, surprised. 

	“I may not seem like it… but I really like this kind of stuff~ I think I picked it up from Celestia. Anyways, you ponies have fun - I might be a while~” 

	“Enjoy yourself~” Rarity waved to the violet mare as she walked into the bathroom and closed the door behind her. 

	Immediately upon entering, Twilight could smell the leftover scent from Rarity’s usage - she’d always noticed that her unicorn friend tended to leave behind a fairly nasty smell after leaving a bathroom. That simple fact made her blush. Still, it seemed the chamber pot had done a pretty good job of containing it - it wasn’t as strong as usual.

	Frazzle looked to the new entrant; she could hardly contain her joy at the realization that she was about to be used by Twilight Sparkle herself! A real princess and alicorn, using her as a toilet like she deserved - it was so exciting! She managed to keep an expressionless face, however - toilets weren’t supposed to have emotions, after all. Though, her tail wagging still showed her enthusiasm, and the alicorn quickly noticed. 

	Twilight chuckled at the clear excitement. She considered teasing her… but she didn’t really want to talk to the toilet more than she needed to. “Open up,” she said, her voice neutral, as though giving a command to an electronic device. Frazzle immediately opened her mouth, just as requested, and eagerly awaited whatever Twilight had in store. 

	Recently, the princess had been learning to control her bladder by holding it for long periods of time, something Celestia had taught her to do. In fact, she’d been doing it all day… meaning it was the perfect time for her to have a little release with this chamber pot. She grasped Frazzle in her magic - she wasn’t interested in using her in this sitting position, no, she preferred something a little more… degrading. Without warning, Frazzle suddenly found her body being lifted into the air, spun around, and slammed to the ground, on her back, the air knocked from her lungs with the incredible force of the maneuver. She panted, the world spinning ever so slightly, as she watched Twilight’s body stand over top of her, the beautiful slit on the princess pony clearly wet and horny as she prepared to use the toilet. 

	“Ahhh~” Twilight let out a pleasant sigh of relief as she suddenly released a rapid of piss, a trickle going right into Frazzle’s mouth. It pittered gently off her tongue and quickly filled her maw, her senses still disoriented; she quickly went to start swallowing on reflex, her time as a toilet having trained her well to know what to do when the immensely bitter, steaming golden liquid was deposited inside of her. She gulped down mouthful after mouthful of the vile urine; Twilight’s bladder seemed to be almost endless - she just kept peeing and peeing for almost a full minute, having spared not a single drop for the living toilet, making sure the particular taste and smell of her personal piss would be burned into Frazzle’s mind. 

	And of course, as soon as the stream was finally done, like a boulder in a temple, Twilight’s ass fell right onto Frazzle’s face. Her cheeks buried the toilet pony, forcing her into complete darkness, pressing down on her head with so much force that she felt like she was being flattened against the dirty tile. The unicorn had been careful to have proper aim - her tail hole was firmly forced into the toilet’s maw, and already, Frazzle could hear the sound of shit slicking through her system. The shit eater only knew her next meal was coming from the feeling of something soft and slippery on her tongue. 

	Twilight’s shit was like chocolate left out in the sun, with just enough consistency on the outside. It kept its shape only barely as it left her ass, staying as a full log only for a few inches, eventually losing its shape and melting into a mess of slimy waste for the toilet to slurp up. Frazzle felt it melting on her tongue, coating her insides, dripping onto her teeth and rolling down her lips; she gulped a mouthful, her body shivering in response to the abhorrent, sick, bitter taste. The next log soon rolled in, acting just like the last… except, it was significantly hotter, so hot that it burned her mouth, like she was forcing down a cup of steaming coffee right after it was brewed. She cringed and squirmed from the pain, but she couldn’t move or express the issue - Twilight was holding her down way too well with her fat ass. 

	The princess’ horn was glowing with the familiar purple light from her powerful spells; a radiant aura surrounded her behind. She smirked, loving the squirms, rubbing her clit with her hooves as she watched the clear signs of pain and disgust from the toilet slave. There was a reason toilet ponies at the magic school tended to shiver whenever they saw her entering the bathroom - she loved to use her magic to heat up her shit so much that it would be scalding, and with the way she sat on their faces, the toilets she used wouldn’t be able to complain. 

	Frazzle’s mouth was practically on fire; she made a gulp much harder than her normal ones. This time, the normal pain of swallowing shit mixed with the immense pain of the heat, making the gulp significantly more unpleasant and difficult, her stomach turning with misery as her head spun. This was definitely going to leave scars, she just knew it; she could feel the heat travelling down her throat. Still, another log came out, and another, and another, now faster and with more force. She felt them melt on her tongue, she swallowed the chunky stew down, log after log. Twilight had obviously made sure to feed herself well that day - she shat out enough to clog a toilet twice her size. 

	Finally, Twilight finished, leaving Frazzle to slurp up the last little bit of leftover residue dripping from the unicorn’s asshole. Steam rose from the alicorn’s behind; it was covered in leftover, liquidy shit from what had obviously been a very climactic use of the toilet. However, she didn’t go to make Frazzle clean her off - not yet, at least. Her reason for that was simple: she’d noticed something, something tucked behind the porcelain toilet (which she was surprised to see that Rarity still had). Her horn glowed as she pulled Frazzle’s journal out, her eyes widening in excitement. “Ooo, what’s this~?” She said, not bothering to turn to see the toilet pony’s reaction. 

	Frazzle let out an almost inaudible gasp of surprise as she saw Twilight find the diary; she’d really hoped that would be private, something only her and maybe Rarity would ever read! But she wasn’t allowed to talk back, or really talk at all, to those who were using her - not unless she had a very good reason, and she knew this probably wasn’t one of those. Her mistress would punish her harshly for even asking Twilight not to read the journal. 

	The princess’ ass went right back onto the chamber pot’s face as she began to read, out loud, the entries. “Dear diary… today, Applejack and Fluttershy both came back to use me again…” Frazzle’s face lit up in a hot red blush as she listened to her secrets being so easily indulged in. As Twilight read, she relaxed her lower body; she let a few logs of shit come out without warning, falling right into Frazzle’s mouth and forcing her to swallow them as she lay there, along with frequent, noxious farts, all going right into her nostrils with gas so humid it made Frazzle sweat, the sound so loud and deep it made her ears ring. 

	“Wow, this is so interesting!” Twilight said, her usual nerdy book-loving side coming out in full force as she read through the private information. She paid no mind to how Frazzle felt about this - after all, why would she care about a toilet’s feelings? “Though… hmm, well, it could be written a lot better. It seems like you use a lot of unnecessary words and run-on sentences… let’s see.” She floated the quill over, dipping it in ink, and she suddenly began to scribble in the journal, crossing out words and replacing them with annotations, changing some pages to be entirely unrecognizable. She turned, moving herself and spreading her legs so that Frazzle could see with the asshole still placed in her mouth, letting the toilet get a clear view as to how Twilight was “improving” her diary. 

	“Change this here… take out this… hmm, honestly, this whole page is pretty bad.” She magically ripped out a page, standing and using it to wipe her ass; Frazzle could tell it was full of writing, but Twilight seemed to have no problem treating it like worthless toilet paper. She casually dropped the shit-covered diary entry into the toilet. “Honestly, you should really rewrite a whole lot of this - it’s all pretty bad. But I suppose you can’t expect much better from a toilet.” She ripped out even more pages as she spoke, casually using each one to clean her filthy ass, wiping liquid shit from her hole and making the writing Frazzle had been so happy about completely illegible. Every one went right into the toilet, further making sure it would be impossible to understand. “Hmm… honestly, if I was giving you a more thorough grading, I’d probably just throw this whole thing in the toilet, but I won’t be that mean.” She reached a hoof to the toilet’s handle and flushed; Frazzle flinched as she listened to the sound of numerous sheets of her writing crumpled and swirled, being swallowed by the drain just like they were toilet paper.

	Twilight grabbed the quill. “Here, I’ll give you a little example of how you should be doing this~ Dear diary…” She proceeded to begin writing herself, releasing more spurts of gas, even waving her hoof in front of her face a few times from how disgusting they were, although she was shameless about making Frazzle inhale every single one. Her gas was toxic like Rarity’s was, but in a different way - it was spicy and hot, smelling and feeling like a hot summer day, sweaty and odorous. She could feel the heat beating into her, giving her heatstroke as she was forced to endure it, her vision growing hazy as her mind grew weak; she managed to stay conscious, but only barely.

	“And… all done!” Twilight closed the diary; she’d filled multiple pages, all on Frazzle’s behalf. “It should be much better now. You can use my entry as a reference for your future writing. I’ll make sure to come back and check on it again, and flush anything that isn’t up to a good standard.” She stood and floated the book back to its place behind the toilet. “No need to thank me.” 

	Frazzle quietly whined; shit was dripping down her chin, leftover from the princess’ incessant use, and her senses were all mixed up and distorted, mangled by the combination of the hot shit, gas, and slamming of her head against the tile. 

	Just as it seemed Twilight was satisfied, walking to the door, her belly suddenly grumbled. She quickly backtracked, turning right back to the toilet and suddenly holding her ass over top of Frazzle’s face. “Hold on, I’m not feeling too good all of the sudden… just let me shit out a little bit more!” 

	The toilet had no time to prepare herself, no time to open her mouth, and Twilight wasn’t even aiming correctly. Shit quickly poured from her ass, her body shaking with relief, her hole left burning by the sudden release of the sickly waste; it splattered all over Frazzle’s face, a mix of liquid and more solid logs, piled up on her head in a matter of seconds, all of it so hot it left burns on her cheeks. It pooled up on the ground below her; Twilight snickered, turning her pussy towards it and pissing right on top of the pile, making the whole mess significantly worse in the process without even a touch of remorse or care for the toilet pony underneath it. “Good luck cleaning all that up, chamber pot~” The alicorn grabbed Frazzle’s tail and used it to wipe her ass clean before heading out. 

	As Frazzle squirmed, quickly trying to get all the heavy shit off her head so she could stand and be released from the torturous mound, she heard the sound of the door shutting nearby, Twilight leaving her alone to deal with the insurmountable mess. It was not so difficult to get out from under it, but the toilet pony’s face was covered in brown, her fur matted and stained, and all those streaks were still burning. She quickly dunked her head into the toilet and flushed, giving herself a swirlie just to clean herself off, leaving her face dripping wet with dirty toilet water; hopefully Rarity would be ok with that. She turned back to the huge pile Twilight had left right on the ground, and she sighed. Rarity might’ve been ok with Frazzle giving herself a swirlie to clean her face off… but she definitely wasn’t going to be ok with that kind of a mess. 

	She breathed in, breathed out… and lowered her head, cringing and shaking as she swallowed down the logs lying on the floor. The tile was incredibly dirty, maybe not as dirty as a log of shit, but still, plenty dirty, enough to gross Frazzle out. She scrunched up her eyes as she licked the brown streaks until they were gone, careful to make sure every bit of the floor was as clean and spotless as she could muster, including slurping up all the floor-piss, which had turned to a darker, shittier shade due to being mixed with the solid waste. It took her more than fifteen minutes to finish the task, and she felt absolutely horrible afterward… but at least she was done. 

She laid down and let her body try to handle the immense amount of shit she’d digested today. She felt miserable, sick, and bloated. However, at least she’d fulfilled her duty as a toilet pony. She smiled to herself, still happy about that fact; she’d been an amazing toilet that day, she knew it, and she was proud of herself. Her tail wagged; she hoped Rarity might be generous enough to give her some sort of reward.

Unfortunately for her… she was far from done. 

Twilight walked out of the bathroom, looking refreshed and excited. “That was so fun, Rarity - your chamber pot did a great job~ Though, I did leave it with a pretty big mess. I hope you don’t mind.”

“Not at all - the more training, the better! Come on over and join us, we were just thinking about getting something to eat, and maybe disposing of that meal using the toilet pony~”

“Actually, if it’s ok with you, I want to write a letter to Princess Celestia about this real quick. She loves this sort of thing - she’d be really happy to hear about it.”

	“What an honor! Go ahead, then.” 

	“Alright!” Twilight exclaimed. “I’ll be back soon!”

	The unicorn left, heading back to her castle, and quickly began to write. It was a simple, short letter, informing the princess of Rarity’s new living chamber pot, and how fun it was to use, and how it’d been doing its service for months now. Her quill flew across the parchment paper; her excitement was clear. She was thankful for magic in this moment, especially since it left her with a free hoof to rub her clit as she wrote. 

	Once she was done writing and… cleaning up, she took the scroll to Spike, telling him to send it off to Canterlot, and making sure he wasn’t going to take a peek at it; she watched him ignite it as usual, and, satisfied, she returned to her friends.

	However, unbeknownst to Twilight, Celestia wasn’t simply going to read the letter and file it away, add it to her collection of all the letters she’d received from her precious student and eventual successor.

	Celestia happened to be resting when she received the letter - it was a bit of a holiday that day; the day court was closed, giving her a very rare chance for relaxation. Upon receiving the scroll, she was happy to read it immediately. 

	“Rarity’s boutique… chamber pot… toilet pony… oh, how fun~” Celestia chuckled mischeviously to herself, her tail swaying with amusement, her slit getting wet to the touch as she thought about what was going on in Ponyville. “Well, I do have some time off… I can hardly imagine a better way to use it~”

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	Twilight Sparkle, Rarity, and the other four members of the friend group returned from dinner at a nearby restaurant, all full, their digestive systems already working through their meals to prepare them to be deposited into Frazzle’s own digestive system. However, as soon as they’d all sat down and begun chatting over tea, a visitor arrived. 

	There was a light, polite knock on the door to the Carousel Boutique. “Oh, one moment - probably a customer.” Rarity stood and walked toward the entrance. “I’m sorry, but I’m afraid we’re closed today - I’ll be open again tomorrow at my usual-”

	She opened the door and immediately stopped talking, replacing her words with a surprised gasp. “P-princess Celestia!?” She said, astounded by the sudden presence of Canterlot royalty. “W-what are you doing here in Ponyville? Is everything alright?”

	“Don’t worry, Rarity, everything is fine. No great threats to pony kind today. My real reason for coming is that I received a letter from Twilight, informing me of… well, your new furniture, I suppose. I heard you have quite the chamber pot, and I was quite hoping you might let me try it out myself.” The princess smiled as she spoke; she towered over Rarity, her hair waving naturally in non-existent wind, held up by her magic. “But, if I need to return when your establishment is open, I understand - I wouldn’t want to impede. I only came because this is a rare day where I don’t have much work to do.” 

	“Oh, of course you can use my chamber pot! I would never deny such a request from you, Princess Celestia - it would be an honor for Canterlot royalty to make use of my humble toilet slave~” Rarity smiled deviously. “It can always use more training, and I have to imagine a body like yours could really give it a challenge unlike anything its faced before~”

	Celestia chuckled; her own expression turned lightly devious. “I think I’d have to agree with you there, Rarity. I’m usually hesitant to admit this fact, but I have a bit of a reputation among the staff at my castle - I tend to clog every toilet I use. We’ve even had to replace some due to the strain being so heavy that the plumbing breaks. Thankfully, I have my own personal toilet pony - they are much more reliable than normal toilets, as long as they’re trained well~” 

	“Well, I do hope that mine lives up to your expectations~” Rarity showed the princess to the bathroom. “I trust you know what to do?”

	“Of course. I’ll make sure to be a more challenging user than any who have come before me~” 

	“Then enjoy~”

	“Thank you~” Celestia entered the bathroom, quickly shutting it behind her, smiling eagerly as she came upon the sad sight of the toilet slave. 

	Frazzle’s jaw nearly dropped to the ground. Was that… Princess Celestia!? She could hardly believe her eyes. One of the princesses of Equestria, the alicorn who made the sun rise and fall every morning and night, the highest royal figure known to ponykind, was now standing right in front of her. She worried momentarily that, perhaps Celestia had misunderstood the situation, and was there to “rescue” Frazzle… however, that worry was soon proven pointless. 

	The way Celestia looked at Frazzle was even more demeaning, objectifying, and degrading than Twilight or Rarity. The royal alicorn simply looked the chamber pot up and down with a fairly neutral expression; she said nothing, made no gestures, just examined her. In that moment, Frazzle realized something: Celestia did not see a citizen of Equestria. She did not see one of her subjects. She did not see a living pony. 

	She just saw a toilet.

	Celestia didn’t say a word as she walked towards Frazzle, turning her posterior to the chamber pot. It was all the toilet could do to open her maw before she found the royal posterior placed on top of her. Unlike all the ponies before her, Celestia had an extremely large body - it was simply the mark of a fully-matured alicorn. Of course, this added quite a lot of weight to her body… weight that a normal pony could not handle without a great amount of training.

	Frazzle immediately strained under the great weight of this particular user. Celestia did nothing to hold herself up - she sat right down on top of Frazzle’s head, putting her full weight down, sitting as though she were sitting on any normal chair or toilet. The chamber pot could barely hold for a second; she crumpled under that weight almost immediately, her legs splayed out on the floor, her head smushed against the tile, flattened under Celestia’s thick, enormous ass. 

	Celestia sighed; saying nothing, still, she just stood and wrapped her magic around the toilet, thinking to herself that she probably couldn’t expect any toilet slaves except for hers to be able to handle her weight, realistically. She forced Frazzle into a sitting position, back to how she’d been when Celestia entered, and she kept her there, frozen, unable to move a thing besides her head. However, as she went to sit, she alleviated the magic a good bit, just enough that she was only barely supporting Frazzle, giving her just enough help to guarantee that this chamber pot would be able to withstand the weight of the princess… even if it was going to be immensely difficult.

	The toilet once again opened her mouth as the user went to sit; she felt the same weight resting upon her again, but instead of collapsing, the magic kept her up. However, it was a horrible strain - she shook under the weight of the princess, her muscles aching and begging her to give up and let her body collapse, but the magic prevented her from doing so. It was like she was holding up a barbell that was far too heavy for her, but she couldn’t put it down, no matter how hard she tried. Her body was overcome with pain, even her bones screaming out in weakness and displeasure. 

	Normally, Celestia wouldn’t have cared one bit how much pain her toilet was or wasn’t in, but admittedly, this time, she found that seeing the clear strain on the object beneath her was oddly amusing. She chuckled as she watched the shivering hooves on the ground. Poor, poor toilet - it was in for a very long night. Time to stop holding back the main show.

	The royal figure began to push, her body full from eating so many sweets and large meals to sustain her greater body; she always produced wicked amounts of waste, with logs that were legendary among those who had the rare pleasure of witnessing them. Frazzle could see it coming out, the hole just a centimeter from her mouth, only barely not going directly in; she shivered in fear. It was gigantic. She’d considered Rarity’s logs to be especially big and impressive, but this one was on another level. It was textured like a cobblestone walkway, as wide as a pony’s leg, maybe even wider, almost double the size of what Rarity had.

	The toilet did her best to stretch her lips even wider, but it wasn’t enough; she simply couldn’t fit such an insane log into her maw. Celestia was looking back and observing; she let out another sigh before using her magic to force the toilet’s jaw open much further. It was incredibly painful, so painful that Frazzle wanted to groan in pain, her eyes watering up, but she could produce no sound, as soon, that log was entering her mouth.

	Her cheeks bulged out with the size of the shit; the taste was vile, more bitter and sour than anything that had come before, and nice and steamy, too. The worst part, though, was that it kept its consistency well. It wasn’t necessarily hard, but it was incredibly solid; it would take a good bit of chewing to make it so a normal pony could comfortably swallow it. However, that was not an option for Frazzle - the log was creeping along slowly, sure, but even that was too fast of a pace for her to chew it. Before she could even consider putting her teeth into motion as the waste slid across her tongue, streaking every fleshy surface of her inner mouth, she felt it nearing her throat.

	Celestia stopped helping to keep Frazzle’s mouth open; it was unnecessary now. Celestia’s logs were going to stay at this size, and they’d be frequent - there would be little to no gap between them. As long as they kept going in, the toilet’s maw would stay forced open just to fit what was already between her lips. The royal figure smirked as she watched tears fall from Frazzle’s eyes, listening to the sound of a wet, hard, heavy GLURK as the chamber pot managed to swallow down the first foot-long log. 

	It was an insane task to even begin to swallow it, but once it was actually in her throat, it was much worse. Her neck visibly bulged; she felt it cutting off her ability to breathe, choking her, as she gulped and gulped, trying so hard to slowly force it down, inch by inch. She barely managed to get it in before reaching the point where she’d be fainting from suffocation. However, the next was soon on its way; the toilet used her nose to breathe in the best she could as her throat neared restriction yet again. 

	Meanwhile, Celestia couldn’t help but touch herself a little as she watched and felt it all happen. She knew exactly what she was doing by coming to this new toilet slave and using them on a day like this - she was cruel when it came to this type of thing, and she loved it that way. She’d turned simple toilet pony wannabes into full-on 24/7 chamber pots with only a few loads to break them down. Honestly, she was impressed to see the pony she was currently using even managing to take down a single log of hers, but Frazzle was doing a surprisingly good job. She was clearly well-trained, even if she couldn’t comfortably handle Celestia’s shit.

	Though, really, there was not a toilet pony in the world who could comfortably swallow a log like this. 

	The princess settled in for a long wait time; she knew how her loads were. Not only were the logs massive, but so was the quantity - she’d have at least fifteen more, just like this one, before she was even nearly empty. It would be a great test of endurance - could Frazzle handle that? In truth, it was hardly a test at all - the toilet pony had no choice. She couldn’t move, couldn’t protest, couldn’t get away from this - Celestia already had her wrapped in magic. She was going to be the royal figure’s toilet, like it or not. 

	Though, even if she could, the toilet pony would not have turned down this task - she wanted to prove that her cutie mark meant something, and she wasn’t going to falter to the royal figure. As she worked to gulp and glurk every log, fighting for her life, the princess casually floated her diary over and read through it for some entertainment. She chuckled to herself, recognizing her student’s work - she’d clearly enjoyed herself. 

	After more than 20 minutes of shit-eating, Celestia finally found herself to be somewhat empty; she shoved out the last log, one final, smaller bit of shit to send chasing down the massive load, and her ass was done. Frazzle gulped down what remained and breathed a heavy sigh of relief. Her body had been disturbed in a more invasive and extreme way with this load of shit than anything that had ever come before - even having her holes and mouth filled with the cocks of stallions or magically-produced shafts of mares didn’t quite compare to the feeling of all that shit being pumped inside of her. She felt sluggish, more full than she’d ever been before, like she could collapse at any moment… if Celestia wasn’t still holding her up. 

	“Hmm, done already?” Celestia spoke, talking more to herself than to the toilet. “That won’t do - I’ve hardly had my fun yet~”

	Frazzle gulped. This wasn’t going to be good. 

	“Oh, right, of course~” Celestia kept her ass in Frazzle’s face. “I almost forgot. Clean me.” 

	The toilet pony quickly went to work. This was more her speed, something she’d learned to handle many times before… or so she thought.

	Her tongue licked the velvety, soft, smooth puckered lips of Princess Celestia’s donut-like ass, tracing the curves and contours, slathering every inch of flesh with saliva as she made it as clean as she could. It really was like chocolate icing on a donut, coated, fresh and slimy; she was sure to lick every inch up and swallow it all down, even though it was so chunky and disgusting. She went over it multiple times, careful not to disappoint royalty, and she gave the insides the slightest bit of a cleaning, too - she didn’t go too deep, knowing that was entirely unnecessary, but she cleaned about half an inch of the inner flesh. That part was covered in a much higher density of waste, but she was still sure to be thorough, even though the taste was enough to bring her back to the days when she’d first started, when that bitterness was enough to make her want to vomit. 

	Eventually, she went back out to the cheeks, touched up everything that hadn’t yet been cleaned off the white fur; she tasted a great amount of sweat and body odor, but she powered through it - it wasn’t nearly as bad as licking the inner flesh. Upon completion, she sat back, pridefully but silently being pleased with her work. 

	But, much to her dismay, Celestia simply chuckled and shook her head. “That’s not nearly enough, toilet slave - you need to go much deeper to really clean a pony out~” Frazzle felt a sense of dread as she felt the hot, sun-like magic of Celestia wrap around the back of her head. She stared at the large, puckered hole; it was terrifying to think what was deeper inside of it. “Take a deep breath, and do it quickly - royalty like myself doesn’t like to wait, especially not for a simple toilet~”

	Frazzle didn’t know what the user meant, but she still followed the instructions, taking a deep breath, feeling fear in her stomach… as her head was shoved forward, her snout suddenly forced deep inside Celestia’s asshole, so deep that not an inch of it could be seen from the outside. The toilet had never been given such treatment; her immediate reaction was to pull back out, but Celestia’s magic prevented such a thing, holding her firmly in place. The smell of the inner ass was almost worse than anything Frazzle had ever smelled before, only trumped by the farts of some of the other ponies she’d served, but this was an entirely different kind of gross - it smelled wet, like a swamp, and the smell was the pure smell of shit, not just gas. Even worse, she could tell that the hole was full of shit - it was not just stuck to the walls, or staining the flesh, no, there was a clear buildup of soft shit still waiting to be released, shit that Celestia had seemingly held back or that had simply gotten stuck inside her ass and wasn’t important enough to fully push out this time. 

	“Well~? It certainly doesn’t feel like you’re cleaning back there~ Be a good toilet and lick everything up, swallow all the shit down, and try not to take too long~” Celestia chuckled; she didn’t like talking to toilets, but if she had to do it, she certainly wasn’t going to be nice about it. 

	Frazzle shivered once again; this was one of the worst things she’d ever had to do by far… but her pride as a toilet pony was too high for her to refuse the challenge. She steeled her resolve and stuck her tongue out of her lips. 

	Licking all of the flesh clean was going to be a miserable experience, but to truly clean it… well, she needed to get rid of the source first. It was hard to open her mouth at all with her snout so squeezed, but she did it as much as she could, and, like she was shoveling mulch or dirt, she stuck her tongue into the pile of soft, gooey shit and pulled a chunk into her mouth. She didn’t swallow; at this point, she was so used to forcing huge logs down her throat that she knew she could go faster by just getting big mouthfuls and swallowing those. She continued to shovel shit into her mouth, little by little, the taste on her tongue just as bad as it was the first time with each entry. She had no idea how much there was, no idea how much she had left; she swallowed her first mouthful, and even after that, it felt like nothing had changed. 

Even discouraged, she continued, and three mouthfuls later, she was down to only the last little bit, laying on the flesh. She pulled it all in, forced it up and into her lips with her tongue, and… GULP… down it went. She let out a shaky breath; it was expressly hard to breathe in there, but not impossible. There was just the tiniest amount of air getting in from the outside. Even then, it was in such short supply that she felt her body getting weak from lack of oxygen. She pushed on, determined not to faint through the process of cleaning out Celestia’s insides. 

Next, she licked every bit of the flesh clean. They were significantly more covered in shit than the simple little bit she’d licked earlier on - it was laid on as thick as icing on a cake. It was a mix of slimy and chunky, like ice cream filled with squishy toppings. Still, she kept going, and going, and going, working her way from the inside to the out; Celestia eased her magic up, letting Frazzle slowly inch out as she made progress, leaving the flesh as spotless as the inside of an asshole could possibly be. Perhaps that wasn’t very spotless at all, but it was all she could do.

	And, as the pony popped out of the rear end, huffing and panting for fresh air, finally done with the colossal task, she looked to Celestia… and was met with an approving smile… and a sudden, extremely brassy fart, with a heavy rush of humid air blown right in her face. Frazzle felt her head being knocked back by the force of the gas exiting Celestia’s hole, the toilet’s hair waving in the breeze created as though she were facing an industrial fan; the smell was just as terrible as she could’ve expected, but after delving into the princess’ ass, it was hard to phase her with something like that. 

	“Well done, toilet slave,” Celestia said. Toilets weren’t really meant to be praised, but still, it was important to give them at least a little positive reinforcement for their hard work so they knew when they were doing well. It would probably be one of the last times Frazzle would ever hear positive words directed at her. “Let me give you a little reward.”

	Frazzle tilted her head, curious as to what sort of reward Princess Celestia could possibly offer her. At this point, anything physical was practically worthless to her - it would only serve as fodder for Rarity or Rarity’s friends to bully the toilet… which, admittedly, she might find herself enjoying. What could it be?

	Frazzle’s body flew up and spun around in the air, suddenly flung up in Celestia’s magic; she held the familiar brand belonging to Rarity in her sun aura. Her magic quickly fired up the iron, turning it from cold and dull to red-hot in only seconds, making it far hotter than it’d ever been before when a brand was applied to the toilet. Along with the two marks already present on her cheeks, the alicorn added one more, on the right, a little higher than the other one… and she pressed it in as hard as she could, for as long as she could.

	The chamber pot’s eyes widened; she shoved her hooves into her mouth to muffle a scream from the immense pain of the horrible burn. By the time Celestia was done, she’d left a charred, black mark, burning away tons of fur and digging deep into Frazzle’s skin, even a little into her flesh, to leave that permanent brand. Satisfied, the princess dipped the brand into the toilet to cool it off, and placed it back where it belonged.

	And, finished with her business, Celestia placed the toilet down and quickly headed for the door, pushing on the handle and walking back outside, as refreshed as she’d ever been. Though, as she exited, a thought occurred to her. She smiled and turned back to the door. “Rarity, would you mind if I made a little… modification to your bathroom? I think you’ll find that it suits your needs well~”

	“Oh, go ahead, Princess Celestia!” Rarity responded, curious about what the royal figure was talking about, and trusting of her. 

	Celestia closed her eyes and concentrated on a specific spell; soon, magic shot from her horn, going right to the toilet slave, covering Frazzle, and spreading out along the floor, the walls, and the ceiling of the bathroom. It covered every surface with golden light, right up until it reached the doorway. Instead of leaking out any further, it created a solid square in the air, filling the door frame perfectly… and then, it all faded away at once. 

	The alicorn opened her eyes and smirked. “I’ve just made it so that your chamber pot won’t ever be able to leave your bathroom, no matter what~ Anyone else can go in, of course, but it won’t be coming out. Let me show you what I mean~” Celestia levitated Frazzle into the air and pulled her toward the doorway. However, where she would’ve normally crossed right out into the other room, she was smushed against an invisible wall of solid force. “There you have it - permanently trapped inside the bathroom, where any good toilet truly belongs~ But of course, this has no effect on any one else - you can come and go as you please~” Celestia put her ass up to the barrier, showing she could easily go inside, while simultaneously forcing Frazzle’s head against her cheeks and farting on the toilet pony’s face. 

	“Oh, wow! I love it!” Rarity said, grinning excitedly. “It’s just the perfect final touch to really cement it as a toilet~ Taking away even the freedom to leave, or go anywhere it likes, keeping it imprisoned forever… this is simply marvelous! Thank you, Princess!”

	“Of course, Rarity. I’m sure you won’t mind if I return here to make use of your chamber pot any time in the future?”

	“No, no, not at all!” 

	“Splendid. Then, I will be taking my leave - you ponies enjoy yourselves~” 

	“Oh, we certainly will~” Rarity said, giggling sinisterly; her and her friends were all waiting with full guts, all in need of some use of their toilet. Frazzle shivered as she watched the group approach. She really was not going to be getting a break tonight… or ever, for that matter. 

So began an eternity of toilet slave for Frazzle Rock, a pony turned inanimate object… who loved every moment.

—-------------

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