An Evening to Herself

by FlatPancake

Rating: mature
Tags: Fetish, Rainbow Dash, Slice of Life, My Little Pony: Friendship is Magic
Length: 4501

Rainbow Dash puts a lot of effort into being seen as cool, heroic, and awesome. But when given an evening to herself, she likes to embrace her more youthful side.

Rainbow Dash puts a lot of effort into being seen as cool, heroic, and awesome. But when given an evening to herself, she likes to embrace her more youthful side.

Contains ABDL themes, diapers, and diaper usage.

Cover art by Asdfasfasda.

Published 2019-09-29 21:30:02 UTC
Last updated 2019-09-29 21:30:02 UTC

Inner Foal

Rainbow Dash had no plans.

The thought of that brought a smile to the mare’s face as she flew towards her cloud home. She had no plans for the night.

Wonderbolts practice had ended for the day, and the mare had the weekend off. She of course had some plans for tomorrow and the next day, but not for tonight. It wasn’t uncommon to have a night to herself, but that didn’t spoil the excitement of it any for her. It had been a couple weeks since the last time she was alone on a Friday night, and she planned to enjoy it.

The pegasus touched down on her doorstep, unlocked her front door, and waltzed in with a skip in her step. She wasted no time in making herself a quick daisy sandwich for dinner, throwing her plate in the sink, and cantered up her stairs. She came to a stop at a door at the end of the hall from her bedroom.

Rainbow Dash kept this room locked most of the time. In reality it was a second bedroom, but the pegasus pretended it was a storage closet to her visitors. She preferred to keep the room, the contents of it, and her activities in the room close to her chest. She chose to avoid thinking about what would happen to her reputation if anypony ever found out.

The mare slid her key into lock, twisted it, and opened the door. She felt a swell of excitement as she did so. The door opened to reveal a modestly colorful room. Overall it was not too different from her regular bedroom. There were Wonderbolts posters covering the sky-blue walls, and a small twin-sized bed sat in the corner, a Wonderbolt-themed blanket messily tossed over it in a clearly abandoned attempt to make the bed. A plain wardrobe stood along the wall, and a full-sized standing mirror hung opposite of it. Given some minor cleaning up, the room could easily be seen as a standard guest room.

However, Rainbow’s other additions to the space would definitely raise some eyebrows. Alongside the posters hung crude but colorful paintings that looked as if they were hoof-painted by a toddler. A chest lay to the right of the curtained window, held open slightly by the leg of a Power Ponies action figure that was overflowing from it. The bed and floor were overflowing with plush toys of all sorts, from stuffed animals that would make Fluttershy squeal to cute caricatured plushies of the Wonderbolts. Alongside the bed were removable bars, similar to what a toddler would use, that lay lowered on the ground and granted easy access to the unkempt bed. The room looked fit for a foal.

In fact, it was just like Rainbow Dash’s room when she was a foal. As far as she was concerned, whenever she was in this room, she still was one.

Rainbow Dash felt giddy as she trotted into the room, quickly making a bee-line for the nightstand besides the bed. She pulled the drawer open to reveal a small collection of colorful pacifiers. Some were solid colors matching the various colors in her mane. Others had patterns of clouds, pastel-colored animals, and even the cutie marks of the Wonderbolts (she was still eagerly waiting for one with her own on it). All of which were too large for a baby, but the perfect size for her. After giving it some thought, Rainbow reached in, grabbed a solid pink pacifier, and plopped it in her mouth without a second’s hesitation. She gave it a couple of suckles and smiled contently around the shield.

She turned her attention to a rectangular plastic package that rested on the cloud floor next to the bed. The word “Cloudies” was printed in letters the shape of clouds on the sides. The plastic had been peeled back, allowing her to view the white folded contents within. A row of white diapers were exposed to the open air, packed loosely as a number had already been removed from the package. Each one were printed with light-blue wetness indicators in the shape of clouds along the plastic front, and they had a more pronounced row of adorable and cartoony clouds with smiling faces on them spanning the top. These too were obviously too large for a baby or even an older foal, but they were the perfect fit for the poly-chromatic pegasus mare currently sucking on a pacifier. Alongside it was a cream-colored bottle of foal powder that she had neglected to replace the cap on during her last visit to the room.

With a wide smile on her face and another suckle of her binky, the mare pulled one of the diapers out of the package by her teeth, grabbed the bottle of powder with a hoof, and trotted over to the bed. With a happy leap, she splayed out her wings and flopped onto her back, sending a couple stray plushies flying out in other directions and a puff of powder into the air. She giggled, and then got to work unfolding her chosen garment before laying it out before her, plastic side down. She pulled the diaper underneath rear, using her hind legs to prop herself up slightly. Rainbow then grasped the bottle of foal powder and sprinkled a liberal amount over her waist and between her thighs, with little specs of the stuff reaching up to her belly button. The powder clung to her fur, turning it from blue to white.

Rainbow Dash felt herself smile again and let another foalish giggle past her lips as she took in the sweet smell of the talcum powder. She set the bottle down on the floor beside the bed and turned her attention to the diaper she lay atop of. Grabbing the far end with both hooves, the mare pulled the front of the diaper between her legs and over her waist. The plastic top came up just below her belly. With the care of somepony who had done this many more times than one would suspect, Rainbow Dash threaded her tail through the back and pulled the wings inward on each side so that the tapes landed firmly against the strip of happy little clouds. Feeling securely fastened, she prodded the sky-blue leg guards to be sure of a secure fit. Having confirmed her diaper changing ability, she brought her legs together a couple times. She relished in the delightful crinkling sound she heard each time the padding pushed together, which then forced her legs out again. Each crinkle was music to her ears.

She hopped off her bed and onto her hooves. She typically preferred walking when she was in baby mode as opposed to flying, both because of the size of the room and because she loved the babyish waddle that her diapers always induced. She waddled over to the standing mirror on the other side of the room and smiled at her reflection. Her pink pacifier bobbed in and out in her mouth, and the diaper fit perfectly around her bottom. She struck a pose which emphasized her padded rear, allowing her to see some of the clouds that adored the white plastic.

Rainbow Dash couldn’t help but think she looked cute. She liked feeling cute, though she would never admit it. It was an idea that she was only willing to entertain in the safety and privacy of her own home and on her own terms. Those terms were typically exclusive to her activities in this room. Nopony else had to know.

Yet as she looked at herself, Rainbow Dash couldn’t help but feel that the ensemble wasn’t quiet complete. “Hmm… shome’ting’s mishing,” she mused around her pacifier. Sure, she rocked the half-naked baby look, but a little more couldn’t hurt.

The foalish mare spread her wings and gave herself a little flap, eager to get to her wardrobe. She pulled the doors open and unveiled a variety of clothing, mostly consisting of adult-sized onesies and hoofed pajamas with the odd costume draped over a hanger. The wardrobe contained a set of drawers on the bottom, filled with socks, bibs, and other juvenile accessories.

While she normally would go straight for a Wonderbolt-themed onesie with snaps on the bottom, she wasn’t quite feeling like covering her diaper today. Instead she eyed the beige sweater in the corner of the wardrobe, a Hearth’s Warming present from her mother when she was a teenager. It was a rather plain sort of sweater, but it was cozy. It was also a little too big for her (her mother assumed Rainbow Dash would grow into it more than she actually did), which did wonders at making the mare feel smaller than she was. It wasn’t the cutest thing to look at, but for some reason it felt right for today. She reached up and pulled it off the hanger. She pulled her head through the top and her forelegs through the sleeves. Lastly, she threaded her wings through the holes in the back.

The pegasus glanced at herself in the mirror from across the room. She was still missing something. She turned back to her wardrobe and pulled open the top drawer. She shuffled through the contents, throwing some socks over her shoulder as she did so. Eventually she found a pair of thin, hot-pink socks that matched the color of her pacifier.

Rainbow Dash hummed to herself in contemplation, considering the color choice, then shrugged her shoulders with a smile. She picked up the socks in her mouth and waddled to the center of the room, where she promptly got onto her back. She raised her hind legs into the air and deftly threaded the pink socks over her hooves and up to her fetlocks until they were nice and comfy. Socks firmly fastened, she gave her hind legs a goofy wiggle in the air, prompting a crinkle of her diaper and another juvenile giggle out of the now cutely-dressed pegasus.

Rainbow Dash jumped back to her hooves and made her way back to the mirror. She posed again, this time feeling satisfied with the overgrown toddler that looked back. She gave her pink pacifier a couple suckles and stuck out her rear, giving her a good view of her white diaper and pretty pink stockings. Her beige sweater was the perfect amount of baggy. Her rose-colored eyes were wide and her smile peaked out behind her binky. She looked and felt adorable, like a little foal. It was almost enough to make her blush.

It was then that Rainbow Dash realized that she was thirsty, and she waddled her way over to a cloud cooler she kept handy near the toy chest. It was a small sort of contraption made of slightly condensed clouds that could keep whatever was inside of it chilled. It had a simple door that a pegasus pony could use to get to its contents, which were arrayed along two shelves of more heavily condensed cloud. It was a miniature version of a larger one she kept in her kitchen which she primarily had so she didn’t need to leave the safety and comfort of her playroom. It wasn’t large enough to hold much, but it was enough for Rainbow’s needs. Those needs in this case were a quartet of plastic baby bottles, each filled with her favorite drink from her filly days: fruit punch.

The mare pulled open the cloud door and took one of the bottles. The door closed behind her as she made her way back to the center of the room and laid down on her back. She let her pacifier fall to the floor and, kicking her blue and pink legs cutely in the air, she brought the bottle up above her and took hold of the amber nipple with her mouth. Sweet red juice trickled into her mouth as she cheerfully suckled, and she could almost feel the world wash away in the moment.

Rainbow dash continued to suckle the bottle as the liquid slowly and steadily drained from the it. Eventually her rear hooves settled down too, and she found herself completely relaxed. She kept a rhythm to it, closing her eyes and letting the bottle take away her thoughts as she drank. She lay like that for a few minutes until eventually she decided she was full. She pulled the mostly empty baby bottle away from her lips and let out a content sigh, then let the bottle drop to the floor. There was still a little fruit punch left, but the rubber nipple did it’s job well of keeping the fluid inside as it tumbled on its side.

She splayed her wings and legs out to the sides, choosing to stay on her back for the time being. She flopped one hoof around blindly until it landed on her discarded pacifier, and she promptly replaced it in her mouth and gave it a few content suckles. Everything was perfect, she thought. She felt cozy from her hooves to her diaper. She didn’t have to worry about seeming cool or awesome in this room; only being little. She felt comfortable, relaxed, and happy. She loved being a Wonderbolt, saving Equestria with her friends, and all the other adult things she did in her daily life. But Rainbow also loved being able to come home and throw that adulthood away for an evening and just be a foal. Just be a baby.

After a few minutes of simply laying there, the adult foal decided she wanted to play. In the corner of her eye she noticed one of her plushies resting on the floor where it had bounced off during her gracious flop on the bed. It was a Spitfire doll, one that Rainbow Dash had had since she was a kid. It was decked out in the signature Wonderbolts uniform, and the mare had always found it nice to cuddle with (though she would never clue her captain in on that). She rolled over onto her belly in it’s direction and promptly scooped it up with two hooves. Doll in hooves, she rolled over again and squeezed it tightly to her chest, kicking up her hind legs again in an infantile fashion. The mare giggled all the while.

“Hewwo, Spi’fiwew!” Rainbow babyishly babbled around her pacifier as she held the doll out towards the ceiling. “Do ‘ou wanna pway?”

The plushie Spitfire said nothing, because it was a plushie.

“Okay!” the pegasus replied to the imaginary affirmative. She stumbled to her hooves and held the doll up on one hoof. She then proceeded to quickly waddle in circles, keeping the doll held high and making wooshing noises with her mouth. Her wings flapped lightly along with her, never hard enough to produce any sort of lift. Her diaper crinkled behind her as she moved, adding to her joyous mood. She dipped and dived the mini Spitfire, even having her dodge obstacles such as her bed frame, toy chest, and curtains. Eventually she ran out of things to use as obstacles, so Dashie had the brilliant idea to make her own.

She set her captain down for a landing besides the toychest and lifted the lid. She brushed aside the varied action figures and foal’s playsets she had and even threw a few toys out of the box to make the search easier. When she came across a wooden pastel-colored building block, she made sure to set it aside in a building collection.

However, as her hooves were deep inside the toy chest in search of more blocks, she became distracted by a twinge in her gut. Rainbow Dash needed to use the potty. Luckily for the padded mare, she didn’t have to go anywhere to deal with it. The mare grinned, having been looking forward to this part. With a glimmer in her eye and a smile behind her pacifier guard, she let her bladder relax.

It took a moment to get the ball rolling as it always did for the normally potty-trained mare, but soon enough she felt a steady stream make its way into her diaper. She could hear a very light hissing sound that accompanied it, and she could feel her diaper get progressively heavier and warmer as it went on. The Cloudies she did their job phenomenally, absorbing everything that the mare had to throw at it. Rainbow Dash had a dopey smile on her face the whole time. It was always a uniquely liberating experience to wet herself, and she relished every moment of it.

Eventually her bladder emptied completely and Rainbow Dash was left with a warm, heavy, wet diaper that sagged very slightly from it’s weight. She squeezed her thighs together and took in the mixture of crinkle and squish that sounded from it. She giggled again.

“Uh, oh!” she babbled to herself, feeling cheerful about the “accident”. She decided that a change could wait. It was a decent soaking, but she had done worse. There was plenty of time to procrastinate and simply enjoy the feeling of a warm diaper. Besides, she wasn’t even sure if she was done with it yet, and she did not want to waste a perfectly good diaper. With that in mind, the infantile mare continued to dig through her toy chest in search of her pastel blocks, absently waving her rump around in the process.

Soon enough Rainbow Dash had a fair amount of blocks at her disposal. She plopped down on her haunches with a satisfying squish and quickly got about constructing a tower with them. She built the blocks up a whole six blocks high, then retrieved her Spitfire doll and resumed her sound effects as she flew the toy around her creation. The Spitfire toy multiple times came in for a crash landing, toppling the stack of blocks in a show of great plushie force and foalish giggles. Each time, Rainbow built the tower back up and let it crash down again. At one point she pretended she was Marezilla, laying waste to her block city herself with cute roars and a plush Wonderbolt coming to stop her.

Rainbow Dash lost track of time, so enraptured was she with her games. It took a while, but eventually the mare found herself getting bored of her blocks and brought her doll in for another landing; this time for good. She sat up, feeling her soggy diaper squish a little, and looked around, itching for something new to play with. She considered her wardrobe again, imagining the cute costumes inside that she certainly never wanted Rarity to know about. A game of dress-up wouldn’t be a bad idea, but she found herself hesitant to remove her cozy sweater.

Her gaze then drifted to the foalish paintings adoring the walls. They were all painted by her in this room with her hooves. The mare had found since she started doing this secret routine of hers that painting, while far from being a special talent, was something she enjoyed doing. She had tried it one time because the idea of getting her hooves covered in washable and non-toxic foal’s paint to make adorable scribbles had seemed like a great addition to her roleplay. She had been right, of course, but she didn’t expect to find it as alluring as it was after trying it the first time. She was no Ponet, but she found herself actually trying when she painted and some of her art she thought was actually halfway good for hoof-paintings. They still looked like a kid had drawn them, but she liked to think it fit the role well enough. There were hoof-paintings of the Wonderbolts, of her friends, and even some of her toys around the room. The mare had tried using a brush one time, but the experience just wasn’t the same when she wasn’t using her hooves like a preschooler.

Deciding that making a colorful mess sounded superb, Rainbow Dash waddled her way over to the chest of drawers that she kept her pacifier collection in. On the bottom shelf lay her supplies: a few tubes of foal-safe paint, consisting of most of her mane colors, a white pallet, and a few sheets of paper. She excitedly pulled the supplies out and set them on the floor.

In a moment Rainbow had a sheet of paper stretched out on the cloud floor and her pallet was covered in globs of different-colored paint. She laid down on her belly and kicked her hind legs up and down absently as she dipped her bare hoof into a glob of green and began drawing.

She continued to paint for a few minutes. She let herself get lost in her foalish art, and did her best to make the image look like a picture of herself. She let herself get covered in the paint, but it wasn’t an issue. The foal-safe paint was easily washable in case it got on her sweater, and it certainly wasn’t an issue for a cloud floor that could easily be patched and re-pressed. The diapered mare didn’t let herself worry about anything, and instead simply continued to create.

However, after about ten minutes, a pressure in Rainbow Dash’s tummy let itself be known. The mare grinned slyly and suckled her pacifier. It was a good thing she procrastinated on getting a change, she thought. Soon enough, the paint wouldn’t be the only thing messy about her.

Opting not to put it off any longer, Rainbow Dash stopped kicking her legs and instead propped her rear-end up on her pink-clad knees. Throwing out any misgivings about what she was about to do, Rainbow Dash let herself relax and gave a gentle push, suckling her pacifier all the while. She gave out a soft grunt, and the seat of her diaper steadily started to bulge outwards as it was slowly filled.

Rainbow Dash loved this part. There was a certain thrill to messing herself that surpassed simply wetting. It was the ultimate display of babyhood, proof that for the time being Rainbow Dash was nothing more than a little baby pegasus, who loved her diapers, her toys, her bottle, and her pacifier. She continued to push, the smile never leaving her face.

She felt her mess press against the rear of her diaper followed by a loose weight settling into it. The big baby shook her rear a little, feeling her load shift and make room for more. She took a breath and pushed some more, feeling the weight in her tummy smoothly transfer into her diaper. The diaper’s bulge gradually grew out until the mare was empty. She let out a deep, satisfied sigh, then gave her pacifier another round of content suckles. She gave her rear a bounce, feeling the weight of the diaper’s contents. She giggled.

“Uh, oh,” she cutely babbled. “I’s a stinky fiwwy!”

In reality, the mare hardly noticed the smell. She seldom cared these days, enjoying the act and the feeling of a full diaper more than she was bothered by it. Rainbow Dash jiggled her loaded diaper some more, feeling distinctly little all the while. It was a wonderful mess. She could still feel the warmth of her wetting radiate across her inner thighs, and the mass pressing against her backside only served to complete the experience. With a grin, she turned back to her painting, only occasionally giving her rear another playful bounce to remind her of the little baby she was.

She took her time with the remainder of her creation, feeling completely relaxed all the while. She even began humming a tune behind her pacifier, letting her now multicolored hooves take over. She thought very little during the exercise, simply taking in the bliss of the moment and the sensations surrounding her.

Twenty minutes later, she was done. Rainbow Dash shuffled to her hooves and carelessly plopped down onto her haunches. She couldn’t help but adopt another dopey grin and let out a soft moan as she felt her well-used diaper squish beneath her. The moment quickly passed, and she looked down at what she had made. Her hoof-painted masterpiece lay on the floor before her, depicting a rough and distinctly foalish image of Rainbow Dash in her Wonderbolt attire. It was amateur and not her best work, but the pegasus didn’t mind. It was just fun to draw, and it wasn’t like she had any intention of showing these off to anypony. Even so, she couldn’t help but be satisfied with her work. She would let it sit there overnight to dry, then tack it to her wall with her other pictures in the morning.

On that thought she realized that the sun had already set. She hadn’t even noticed that it had done so, so enraptured was she in her painting. It was still early in the evening, but Rainbow Dash still found herself letting out a yawn. She figured now was as good as anytime to go to bed. She was a baby, after all, and babies have early bedtimes.

The baby filly fetched a colorful towel from her painting drawer and wiped the wet paint from her hooves, leaving her fur still splotchy and discolored but otherwise dry. She could wash the rest out tomorrow. She considered going to her normal room to sleep, but thought against it. She’d stop being a baby in the morning. Maybe. Either way she wasn’t done being one yet, so she made her way towards the bed in the corner. Her waddle was made even worse by her now-full diaper, and it squished and squelched with every step. She eyed the package of diapers next to the bed and paused.

“Hmmm… I s’ould pwobwy change...” she ruminated aloud around her pacifier. The plus-sized toddler gave her rump another bounce, then reached a hoof between her thighs. It was still slightly warm, and the squish it gave when she touched it with her hoof hadn’t lost its appeal yet. She contemplated this long and hard for about two seconds before exclaiming “Naw!” and crawling into bed. Rainbow Dash didn’t feel like changing, and she had used enough foal powder that she didn’t worry too much about a rash. It could wait till the morning.

Instead she raised the bars on the side of the bed, turning it into a makeshift crib. She then tucked herself into the Wonderbolt-themed covers and lay her head against the downy pillow. She scooped up one of the many plushies strewn across the bed and cuddled it in her hooves. She suckled her pacifier again, and gave out a deep hum of contentment. She fell into a rhythm with her pacifier, just as she had her bottle, and only a few minutes later the big baby felt herself drift off to sleep.

It had been a good evening. It always was.