Rarity continued to gaze intently at Twilight as the young Alicorn strode about her shop alternatively stretching this leg or that and at intervals raising her front half by putting her fore hooves up on a countertop or table. The more she watched Twilight the more enamored with her good friend’s amazing diapered figure in action she became. It was as though the young princess had been born for diapers. Of course all foals started out life in them but only a select few could keep on growing into adults all the while being able to look every bit as cute in them. And here just about the best example she could have hoped for has waltzed right into her place of business!

Eventually the pressure of Rarity’s hoof rubbing up and down over the smooth white plastic and heavily soaked padding between her back legs became strong enough to register to her conscious mind. With a slight sense of regret she lowered her hoof and motioned Twilight over.

"Thank you for that lovely demonstration Twilight! I think I’ve gotten a good enough idea of where to start.” Come, come, Rarity motioned for Twilight to follow her into a different back room separate from the fitting room.

“As I believe I mentioned before the diapers you have on now are a wonderful place to start. If we are lucky all that will be required is to reuse the basic pattern but with your exact measurements and a new color/design scheme and I should be able to start producing the first examples for you to try on! This is so exciting Twilight! Why, perhaps I might even be able to begin producing a ‘Princess’ line of diapers for select customers and- ahem, well, with your permission of course Twilight”, ended Rarity a bit sheepish from her over enthusiasm.

“No, that does sounds like fun, but one thing at a time. I’m still getting used to the idea that you know I like diapers, I’m not sure how I’d feel about too many more ponies figuring out the same thing quite yet.”

“Yes, of course Twilight, my customer’s privacy is of the utmost importance! I wouldn’t still be in business today if I couldn’t maintain confidentiality.”

“Here we go Twilight.” Rarity said when they got to Rarity’s work desk, which was covered in various types of fabric and patterns in various states of assembly towards their ultimate destination as parts of dresses and other outfits. There were also a number of catalogues and notebooks full of sketches of Rarity’s own design piled here and there. However the catalogue that Rarity pulled out from a small draw near the bottom of a nearby desk was not associated with any of the obvious categories of publications. It was also not as large and possessing of a flashy front cover as many. In fact it had no cover image at all, simply a small black lettered title of ‘Absorbent Undergarments’ was printed on a light blue background.

“This little book here is of my own publication I’m proud to say, and has a certain circulation among certain ponies of similar interests across Equestria.”

Twilight stared at it eagerly as Rarity placed it in front of the Alicorn and opened it to the first page of listed items. The book was essentially a diaper catalogue but calling it that alone would be an injustice. There were dozens of carefully drawn overall similar yet slightly different diaper outline patterns to choose from but each one had a carefully compiled list of dozens of suggested additions and modifications to the point where thousands of possibilities could be dreamed up through mixing and matching. Some of the concepts included diapers that could be made with the wearer’s cutie mark printed on the side. A pony could have any image they wanted printed anywhere they wanted really. There were options for custom decorative accessories one of which was the very silver chain around the waste of the diaper she was currently in. You could get a diaper that had the plastic around the waste cut to form belt loops and of course there was a listing of moisture proof plastic belts that could be ordered. It was possible to order a diaper that only had a standard plastic covering on the outside or the plastic could come partially around into the inside of the diaper such as the on the one Twilight was currently in. There was even an option for a diaper that was completely covered in plastic inside and outside, though the practicality of that was questionable. Regardless, the lists went on. Rarity was quite proud of her work in this booklet She had had great fun putting it together.

“Wow Rarity! This is amazing! Gushed Twilight. I had no idea there were so many options! Who makes this book and where can I get my own?”

“Oh its just one of thoes compilations sourced from various places…” Said Rarity skirting around the issue. “I am certain I should be able to get my hooves on another copy soon and I will be sure to immediately bring it to you.”

Rarity wasn’t quite ready to explain to Twilight that she was so heavily involved in the production of boutique diapers distributed across the country.

“Thank you! I’d love that if you could do it.” Twilight said turning back to the catalogue.

As Twilight re-immersed herself in the contents of the listings mumbling mental notes to herself as she read, she made a slight fidgeting motion and lowered her tail slightly. These motions would have passed by unnoticed to the average pony but to Rarity’s eye, trained on years of dealing with Sweetie Belle in diapers they spoke quite clearly about what Twilight must be feeling.

Twilight must be needing to use the bathroom again and this time not just to wet! Thought Rarity. As it happened Rarity had been dealing with a growing pressure in her backside for some time now but had been resisting the temptation as she wanted to wait for the most opportune moment. It appeared that such a moment had arrived. Rarity wanted to make Twilight feel as comfortable and free to do as she wished in her diapers around her and Rarity had decided that the best way to do so would be to lead by example.

“Here Twilight, I don't want you to feel rushed.” Rarity said dragging over a chair with her magic. “Have a seat and take your time. I need to organize a few things in the fitting room before opening tomorrow. I’ll be back in a few minutes to check on you.”

“Ok, thanks Rarity.” Twilight said distractedly while settling herself onto the provided chair, diaper giving off a faint crinkling sound as Twilight’s weight settled down onto it.

Rarity Smiled at the violet alicorn, give that mare a book and she’ll forget the rest if the world exists. It really was an endearing trait.

Now, thought Rarity, to go through with my plan. Rarity left Twilight in deep thought over her new wealth of options and hurried back across the showroom to the fitting room where they had started. Rarity closed and locked the door upon entering despite the fact that she felt she might well not hear from Twilight for over an hour if left alone. However Rarity was simply a cautious mare and didn't want to worry about the chance of interruptions that would upset the delicate timing of her plans.

First though Rarity couldn’t help but go over to the nearest mirror leaning against the far wall and admire herself in the diaper a bit. She was pleased to see that despite being well used and moved about in for a little while there was absolutely no sign of the padding coming apart or of the diaper becoming looser in any way. She really did love how she looked with the extra thick slightly discolored bulk of the wet diaper being put on display so proudly. Her waist chain glinted softly in the light from the single ceiling bulb, as it was dark outside now with the Sun having set an hour ago. It had been a strange series of fortuitous events that had led her down the path towards loving diapers but she couldn’t be happier that it had turned out in the way it did. It added a great spark of excitement in her professional life that she felt she would probably be lacking otherwise.

The period of self admiration had to come to an end though, Rarity wasn’t sure how much time she had to waste and the sooner she could get back to Twilight the better. Well, Rarity, she thought to herself I don't think there will be much going back for you if you do this but we’re in so deep already…might as well. And anyway if nothing else it will at least feel good.

So with a deep breath of commitment she relaxed her muscles and did what nopony with even passing knowledge of Rarity would think she would ever do. Rarity began to mess her already soaked diaper.

Due to having held it in for so long it all rather came out in a rush. Rarity was quite glad of this really, she hated having to strain or push. Such behavior was so un-lady like after all. Rarity moaned quietly as the unusually large quantity of slick squishy poop spread out over her private regions and up below her tail. The thickness and tightness prevented the diaper from obviously bulging out the way a cheap diaper would have under the same circumstances.

It was all over in a matter of seconds but it didn't take long to make a huge change in how the diaper felt. Now a thick spreading pile of hot messy poop overshadowed the warm wetness caressing her between the legs and around her back and hips. Its presence seemed to distract from all her other feelings.

As good as it felt however there was one simple option available that could make it much better. Rarity picked out a spot on the floor covered by a soft rubber mat normally used to protect the finish from stools and mannequins and the like being dragged about. Rarity stepped over to her chosen location and gently lowered herself down directly onto the seat of her diaper. The feeling of the hot mass of poop immediately spreading in all directions within her diaper was simply divine. The majority of it went all over the back of the diaper though the base of her tail limited this upward migration. A good amount though quickly squished its way forward coating her privates in its slick warm embrace. Rarity couldn’t resist squealing just a bit at this wonderful sensation. Immediately she pressed a hoof into the center of her diaper squishing the mess in even more thoroughly. Rarity could never quite get over her surprise that something so disgusting could feel so wonderful at the same time. A bit more quick rocking around on her backside making sure the sticky mass was coating as much of her rear and crotch as she could manage in a limited amount of time finished up her clandestine fitting room activities. It was now time to return to Twilight and hope and pray that her timing and ability to read a pony’s emotions were still accurate.

Rarity’s walk back to where Twilight was still engrossed in her newfound book of options was short but wonderful. With each step she took the goopy mess coating her from tail dock to halfway between her privates and navel alternately pulled away from or squished into her normally immaculately cared for soft white fur. The sensations constantly changing depending on how her stride stretched the plastic of her diaper. One of the best things about being in a very high quality diaper was that as filthy as she was the same well designed leak guards and general tightness of the fastening tapes nearly entirely prevented any smell from getting out. Of course no diaper can be perfect in such regards and if she stood in place for long enough she would surely begin to smell herself. As long as she moved around now and again however things should be fine. Anyway if all went to plan she wouldn’t have to hide her deed for long.

Upon entering the workroom Rarity was immediately encouraged to see Twilight squirming around a bit on her seat though she persisted in looking through the listing of available diapers and associated options.

“So!” Rarity called from near the doorway. “What have you come up with?”

This time Twilight did look up from her research.

“Oh, I think I’ve settled on some options but I want your opinion on some others.”

“Really?” Rarity said walking over closer to Twilight. “What are you interested in?”

“I’d really love to go over these with you but um…” Twilight trailed off

“But what?” Rarity asked, although she was already sure of the answer.

“Well, I need to use the bathroom again-“ Twilight started.

“Twilight dear, I thought we already had this discussion, you are welcome to use your diaper whenever and wherever you want to.”

“I know, but this time I uh, I have to do more than just pee.” Twilight said her ears folding back in embarrassment.

Bingo! Though Rarity.

“Twilight, Twilight… just how strict of a mare do you think I am?”

Rarity now walked all the way around the chair to stand in front of Twilight. Without saying a word Rarity turned so her left side was facing Twilight whereupon she lifted her back left leg in such a way that Twilight should be easily able to see the brown stain that ought to be visible behind the leak guard. Twilight’s initial expression of confusion lingered long enough that Rarity nearly gave up and told Twilight outright but just before the moment got awkward enough for such direct measures Twilights expression changed to one of surprise and even perhaps a bit of shock.

“Rarity! You- you’re messy! Twilight exclaimed.

Satisfied with Twilight’s reaction Rarity lowered her leg and turned around to walk to where Twilight was sitting where she proceeded to plop herself down nearly on top of Twilight in the same chair. They were so close now that their sides were touching.

“Yes, Twilight I am. Very messy in fact.” Rarity said in a comforting voice.

“Its what diapers are for after all, and I see no reason why you should have to resist your body’s urges when I don’t.”

“But Rarity I-“ Twilight started looking first at Rarity’s swollen diaper and then up at her face.

“I don’t understand, this isn’t like you Rarity”

“Twilight.” Rarity said in a soothing tone despite feeling rather nervous on the inside.

“I am behaving more in line with my personality than you seem to think. I’m not the only pony in Equestria who for business or personal reasons puts on an air of propriety and respectability while out in public, but who, when by themselves in private or with close friends, such as yourself, let their mane down so to speak in a major way. It can be hard trying to look and act perfect all the time and so when ponies like myself find a way to unwind we usually do so in a rather spectacular manner. I only wish you could have known about this side of me sooner so it would not come as quite a surprise.”

“And besides,” Rarity said lightening up. “You are an Alicorn Princess of Equestria! Perhaps not yet in full possession of the regal bearing a thousand years of steady rule brings but don't you think the average pony would be just as shocked if not more so to learn that you of all ponies liked to wear and use diapers as you do?"

“Well I- when you put it that way… I’m sorry Rarity I guess I never took the time to really learn what it must be like to be in your position, I know I sure get tired of all the Canterlot aristocracy thinking I need to act a certain way. It must be just as bad for you, your business success rides on your image after all.”

“I’m sorry I reacted the way I did, it’s just all a bit much to learn in one night. Perceptions are not easily changed I guess."

“No need to apologize dear, I suppose I’m somewhat to blame, after all I didn't exactly give you much warning about revealing my inner secrets did I!” Rarity laughed.

Rarity could see that Twilight was coming back to her usual happy self but with that came a return of a certain feeling which Rarity could surmise by the way Twilight glanced down at her pee swollen diaper and back up at Rarity.

“Um, so its really alright if I uh, go?” Twilight asked.

For a response Rarity leaned back in the chair and spread her legs exposing the slowly growing brown stains around the leg openings of her diaper. She then gave Twilight a pointed look as if to say ‘If I’m willing to do this myself do you really think I would be bothered if you did it?’

“Right then, Twilight said standing up. The Alicorn didn’t bother really going anywhere she simply stood there in place, spread her legs, hiked up her tail up, and with an audible exhale let her inhibitions and anal muscle control go.

The results were immediate and impressive, Twilights diaper slightly but rapidly expanded in back in much the same way that Rarity’s had only a bit more so. Rarity was transfixed by the sight of the heavily breathing Alicorn thoroughly mess her beautiful diapers. Flur would be so pleased to know a princess was enjoying the same diapers I made for her Rarity thought.

As Twilight brought a hoof around back to prod at the even more expanded rear of her diaper Rarity found herself sliding around in her mess by moving her butt about in small circles. A process guaranteed to coat almost any part of her under the diaper not yet already slathered in slick brown poop. As Rarity saw twilight looking at her she smiled at the other pony.

“Well, Twilight aren't you going to sit back down, I’m sure you would like to, why don't you try right there on the floor where you’re standing.” Rarity couldn’t quite manage to suppress a slight grin as she said these words. There was no way by now that even a pony like Twilight who was sometimes slow to grasp the details of social situations could not believe that Rarity didn't know exactly what Twilight wanted to do in her diapers and why.

With a hesitant grin of her own Twilight carefully lowered herself closer to the floor until with a sigh of pleasure Twilight came down on the huge mass in her diaper with her full weight. Rarity, a pony experienced in noting the finer details in things didn't fail to notice how Twilight had come down on the seat of her diaper while leaning quite a ways back. Doing so was a guaranteed way of making sure that most of the mess would be forced between her legs and right over her marehood as she sat up straight. Rarity wouldn’t be surprised if Twilight wound up with as much or more of her mess in the front of her diaper as in the back area below her tail.

This thought combined with her own slick mess coating about everything under her diaper and her constant motion nearly sent her over the edge right then and there. Fortunately she managed to calm herself down before things got really out of hoof and she made a fool of herself.

After an extended period of rocking back and forth in her beautifully designed and now thoroughly used diapers Twilight stood back up on all fours with a slight grunt and a rather silly smile on her face which spoke of a pony who had finally been able to do what she had secretly hoped for but never seriously considered would happen. Rarity couldn’t help but watch the front of Twilights diaper and try to determine for herself just how much poop was contained there. She knew Twilight’s mess must be coating just about every square inch of soft fur to be found under the diaper after all the rolling around Twilight had done in it but she wished she could determine specifics.

“Well Twilight, you certainty must be satisfied after that performance! Come, sit next to me and show me what you’ve decided on for your own diaper set.” Rarity considered herself fortunate to have had the foresight to have brought over a chair that had plastic-based cushions just in case.

“Oh of course, that.” Twilight said sheepishly.

Twilight came over and with an admirable lack of hesitation sat herself right down next to Rarity. The chair, while wide, was not necessarily designed for two ponies at once so Rarity found herself right up next to Twilight, shoulder fur brushing and diapered hips rubbing together. Rarity floated the design book over from where it had been temporarily forgotten on an end table and opened it up to the first page.

“And so? What were you thinking? Asked Rarity.

“I, I was thinking you know, what are diapers all about? They’re about comfort right, not just the way that they feel when tight around your back side and hips like they are hugging you but also the comfort of knowing that you can just go in them when you need to and you don't have to bother having to go to or find a bathroom. Its like they are your friends who are always there for you when you need them. And so I thought about who represented comfort to me the most when I was a filly. Well aside from my parents of course.”

“Hmm, let me guess” put in Rarity. “Princess Celestia, perhaps”

“R-right, that's- yes, Celestia was always there whenever I needed- well anything really, but especially in my studies. She was of course my teacher first, but more than that if I wanted extra practice on a spell or needed a study partner or I wanted something from the rare books archive she was always there for me. Plus on more than a few occasions she would let me use her private sitting room to study in. I loved it in there; it was so peaceful with a fire going on cold winter nights. And sometimes Celestia would come over and lay down next to me and we would, um, cuddle together."

“Anyway,” Twilight hurried on before Rarity could interject any questions hunting for juicy details about Twilights life as a filly in the Canterlot palace itself. “I just thought it would be somehow… fitting to wear a diaper designed with Princess Celestia in mind… That's not too weird right? You don’t think Celestia would be mad do you Rarity? Twilight asked with concern in her voice.

“Haha, oh Twilight, what you said is so touching, no I don’t think its weird and more than that I think Celestia would be honored and a bit amused that you thought so fondly of her that you would want to wear things based on her.” Rarity said putting a foreleg around Twilight’s waist and pressing her hoof into the side of Twilight diaper. She didn’t bother to remove her leg after the initial squeeze though.

“Why amused?” Twilight asked.

“Ah never mind I said that.” Rarity said quickly. “Just know that I’m positive there’s nothing wrong with what you want. So what specific qualities do you want the diaper to have?”

“Right, well, I was thinking that the diaper should mostly be white or perhaps a very pale pink like Celestia’s coat and maybe some gold trim, though not too much, around the top and leak guards.

“What a splendid idea.” Said Rarity beginning to rub her hoof around in circles along the smooth plastic of Twilight’s diapered hip right near where the Alicorn’s cutie mark poked out from under the diaper.

“Oh, and I thought it would be nice if the diaper tapes were colored based on Celestia’s mane, like the bottom two would be green and the top two would be blue or something like that” And also perhaps a colored line sketch of Celestia on the front, nothing too, um, over the top, but something subtle and elegant!”

“Twilight dear! That sounds simply gorgeous, I can’t wait to get working on it! Rarity’s hoof was now rubbing up and down the back of Twilight’s diaper and making circles around the base of her tail.

“Was there anything else you wanted to add?” Asked Rarity.

“I, uh, do like the interior plastic lining on the ones I’m wearing now, it makes it more slick, I guess is the right word, its easier to slide around in when um-“

“When your messy.” Rarity finished for Twilight.

“Yes, then” added Twilight. Now moving herself around a bit more in her diapers. Rarity took this opportunity to move her leg back around to her side of Twilight and began rubbing down along Twilight’s diaper between it and the inside of her leg.

“And just make sure the padding is packed in as well as it is in this diaper, that's probably the most important thing. Um, in the end”

“Of course, of course, oh, I’m sorry dear, was I distracting you, should I stop? Rarity asked her hoof now gliding up and down the front of Twilight’s bulging poopy diaper.

“Ah, no… no its, its fine” Twilight said spreading her legs open just a bit wider allowing Rarity’s hoof more freedom.

Having gotten verbal permission Rarity began to press her hoof deeper into the soaked padding overlying a deep layer of squishy poop coating everything between Twilight’s legs. The sensation of having another pony’s hoof press her squishy waste deeper into her marehood made her moan with pleasure.

“Wow Rarity, that feels-“ Twilight was abruptly cutoff as Rarity leaned over and kissed her full on the lips. Rarity could immediately tell from the way that Twilight hesitated and stiffened up slightly that Twilight was afraid that Rarity was interested in more than simply another mutual pleasuring session, which had occurred occasionally in the past though without diapers being a factor. Rarity could understand Twilight’s position. It would be a bit awkward for the Princess of Friendship to suddenly be in a committed relationship with a good friend to the exclusion of all her other friends. And as a general rule in pony society it was frowned on for an Alicorn, however rare they were. (Historically around one in one hundred million or so on average Rarity had read.) To go about getting into serious relationships with ponies that would not live even a twentieth as long (or less). Rarity immediately made it a point to correct this potential misunderstanding before it could disrupt her plans for the evening.

“Don’t worry dear Twilight.” Said Rarity releasing the Alicorn from her kiss.

“It’s not my intention to try and have you as mine, besides I don't think we would really get along that well over time.” I just want to do my best to make you feel like the Princess you are for tonight.” Rarity said while putting on her most disarming smile.

Thankfully Twilight visibly relaxed at this and as a very encouraging sign without a word leaned in and kissed Rarity back. This time neither pony saw reason to immediately break apart. It didn't take long for hooves to find sensitive diapered areas and between the kissing growing more passionate and the rubbing and pressing becoming more forceful the situation became rather heated.

“I would suggest,” panted Rarity finally pulling away from Twilight “that we move to a more comfortable location. I think that we will soon find this chair to be rather… limiting.”

“Yes I agree, um, more space.” Twilight said rising out of her sitting position. At first she looked around a bit confused.

“Where…?”

Rarity pointed a hoof up toward the celling with a look that said ‘where else?’

“Oh right! There!” “There sounds good!”

To Rarity’s surprise Twilight took the lead out to the stairs that led up to the small apartment which took up the second floor of the boutique. Rarity shook her head in amusement as she followed the unpredictable mare up the stairs.

The opportunity to watch Twilight go up two flights of stairs in a well-used diaper was not lost on Rarity. She spent the unfortunately brief trip nearly transfixed watching the shiny violet plastic of the diaper stretch in various exciting ways over the thick bulk of the soaked padding which itself was pulled tightly over a very messy but wonderfully toned muscular butt. Twilight’s butt, an Alicorn’s butt, one of the finest butts in Equestria and not only was it encased by a dirty diaper but it was hers for the night. Rarity also couldn’t help but pride herself on her efforts in having these diapers created. Even after a complete soaking, a huge messing, and a while spent being squished around in, the diaper had held onto its initial shape almost perfectly. A standard diaper would be noticeably sagging by now and the padding would probably be falling apart. No sign of either was to be found here. Only the slight discoloration and bulging out of the padding hidden under the outer plastic and the faint smell of a well-used diaper reached Rarity as being indicators that Twilight had gone in the thing at all. It really was something to make the fashion oriented pony feel pride for.

At the top of the stairs Twilight paused waiting for Rarity to catch up.

“In here darling.” Rarity said passing by Twilight and pushing open the door to her bedroom. The room itself was not particularly spacious as there was significantly less floor area for the second level than on the first. However Rarity had managed to squeeze in a four-poster canopy bed with purple drapes to match her mane color not to mention a sizable dresser. There was a small side table on the far side of the bed upon which sat a single lamp that provided all the illumination in the room. Between the soft lighting and the plush bed it really was a cozy little space. At least this was the impression she hoped her frequent ‘guests’ had of it.

“It actually has been a little while since I was up here hasn’t it Rarity." Noted Twilight.

“Indeed it has.” Rarity replied, “Though I don't think much has changed. It's a huge pain to move around this heavy furniture after all. Trying to lift that bed gives me a headache.”

“Why, Twilight, am I discussing furniture under these circumstances? You must think me crazy. Here on the bed you go.” As Twilight worked to get up on the bed Rarity pulled the finely made red and white comforter off and neatly folded it over on the dresser. This revealed that the bed mattress was covered in a thick clear plastic protector sheet that was pulled tightly over the sides and corners. It squeaked softly as Twilight moved around on it trying to make herself comfortable.

“Though that,” Rarity said pointing a hoof at the plastic sheet “I believe is a new addition from your perspective. Originally I bought it for Sweetie Belle so that I could put it on the bed when she spent the night here with me but I have since discovered that I find it very convenient for my own proposes. I would never forgive myself if I ever did anything to ruin that mattress!”

“So um, how do you want me to uh…position myself for whatever it is…” Twilight asked awkwardly.

“Twilight you really have no idea how adorable you are when you’re nervous like that do you.” Laughed Rarity climbing up onto the bed herself. “Just lay back, relax, and let me do the work.”

Twilight, her face feeling a bit hot from embarrassment lay back into the soft pillows with her back legs spread out in front of her revealing the fullness of the diaper between thoes legs. The diaper’s outer plastic covering was pulled tight by the urine filled padding underneath presenting a slick smooth surface which reflected the dim light from the room’s only lamp. The printed image of the Canterlot supermodel Flur stood out proudly on the front as if personally endorsing the diaper and its messy contents. Rarity watched Twilight shift around in her diaper a bit more, no doubt enjoying how her mess squished and oozed around her butt and between her legs with every little movement.

Well if we’re going to do this might as well start now. Thought Rarity

“So what-“ Started Twilight.

“Shhhh…” whispered Rarity. “Just enjoy yourself princess, no need for explanations.” As Twilight looked on intently Rarity bent down and kissed the front of her diaper and just for added measure licked it as well. It was worth it as this unexpected action got a giggle out of Twilight. Good thought Rarity that means the poor girl is relaxing, now hopefully we will be able to get somewhere. Rarity sat up straight again but now she pressed her hoof firmly into the front of the diaper. Not just a rub as before but a hard press. This elicited a sharp intake of breath from Twilight. Not quite a gasp but Rarity would take what she could get.

“Feels wonderful doesn’t it, Twilight” Asked Rarity somewhat rhetorically considering the obvious answer. As she continued her firm presses. The fact that each press left a temporary indentation in the plastic and padding spoke volumes about just how much mess there really was in Twilights Diaper.

At this point though it wasn’t just Twilight’s diaper that Rarity was paying attention to. Though she had never fully stopped being aware of her own soaked and completely filthy diaper now she was suddenly much more aware of it. How its tightness firmly pressed the poop into her fur so she could feel the damp slickness all over her sensitive skin. How every time she moved she could feel the thick goo squish its way up into every fold and crevice of her sensitive marehood. Her clitoris felt like it was on fire buried as it was in a thick coating of her own beautiful bodily waste.

Rarity tried her best to concentrate on her activities with Twilight, it really wouldn’t do for her to cum now. Though if she were any judge Twilight was closer to the edge than she herself was. The Alicorn was pressing her diapered crotch into Rarity’s hoof harder each time and was beginning to grunt or moan with every thrust of her hips. Twilight was close and Rarity knew just how to give her the satisfaction she disserved. At the same time that Rarity forced her hoof into the front of Twilight’s diaper as hard as she could she leaned forward and wrapped her tongue and lips around Twilight’s horn.

Her reaction was every bit as satisfying as Rarity was hoping for. With a sort of strangled cry Twilight bucked her hips hard into Rarity’s hoof several times while her horn glowed softly and created a tingling sensation in Rarity’s mouth. After a few more weaker pelvic thrusts and a shudder Twilight fell back onto the pillows breathing hard.

“Oh Rarity, that… was wonderful…thank you…” Twilight said between gulps of air. “I guess…I needed that.”

“Don’t think we are through just yet my dear.” Rarity said running a hoof up and down through Twilight’s soft belly fur. “The best is still to come!”