Instincts of a Mother

by The Abyss

Rating: mature
Tags: Slice of Life, Twilight Sparkle, My Little Pony: Friendship is Magic, Rainbow Dash, Romance
Length: 10313

After asking Twilight to help her live out her fantasy of being a foal, Rainbow discovers that things went terribly wrong the next morning. Now, stuck as a foal, she has to depend on her marefriend-turned-mother until they can change her back.

After confiding in Twilight that she’d love to live out her fantasy of being an adult foal for a night, Rainbow wakes up the next morning to find things went terribly wrong. Instead of waking up as an adult, Rainbow woke up as a foal. Since Twilight doesn’t have the proper books that deal with unraveling the complex spells that she used last night, they decide to travel up to Canterlot in the hopes that Princess Celestia can help them.

Little does Rainbow Dash know that in order to become an adult again, she has to take a big leap of faith.

Contains: Motherly Twilight, a foal-sized Rainbow Dash, breastfeeding, and light usage of diapers

Published 2015-11-23 03:20:02 UTC
Last updated 2017-01-03 14:17:29 UTC

Chapter 1

Dashie didn’t want to get up. She was all snuggled up against Twilight’s belly and her head was tucked into the crook of her elbow. Twilight’s wing was draped over her back, and she was small enough that it covered most of her body. She was wondrously warm, and Twilight’s soft feathers had kept her content throughout the night. Even though the bedroom was rather chilly, Twilight’s warmth had been more than enough for her. She sighed and nuzzled Twilight’s belly as her stomach grumbled loudly.

Flicking her ears back, Dashie took a deep breath and let it out slowly, smiling as Twilight’s familiar and comforting flowery scent filled her nostrils. In such an unfamiliar environment, it sure felt nice to wake up next to somepony you trusted with your life. She had a bit of a headache, but it was just a minor one.

Dashie’s stomach grumbled again. She whined softly, knowing that she would have to give up Twilight’s warmth if she wanted to sate her hunger.

Another gurgle from her stomach helped her make up her mind.

Sticking close to Twilight’s belly, Dashie pushed Twilight’s wing off of her and sat up, the thick padding between her legs pushing them apart. After wiping her eyes, Dashie turned around and slid down towards Twilight’s engorged breasts. Still feeling rather tired, Dashie wrapped her lips around the bottom nipple and started sucking. No milk came out at first, making Dashie suck harder. A few spurts came out, then a little more, and a little more after that.

It’s kinda weird how I can’t eat solid food... Dashie thought as she felt her diaper warm up. I can’t even keep foal food down, either... She looked at the changing table as she sated her hunger, eyeing the diapers that Celestia had bought for her. Even though the room was still dark, the sun’s rays started to seep through the bottom of the curtains, giving her just enough light to recognize the design on the plastic packaging. Oddly enough, even though Dashie knew those were the best of the best diapers for foals, she found that she couldn’t read the label.

Going through the motions of suckling on Twilight’s teat soothed Dashie and purged the coldness from her coat, warming her up from the inside. Dashie smiled and laid her head on the breast that she had just drained, using it as a makeshift pillow for the moment. It was almost as soft as a cloud, but it had one trait that Dashie really loved: it was warm. While clouds were warmed by the sun, she knew from experience that only the top layer was moderately warm, and that everything under that was cold. Twilight’s breasts radiated heat, and Dashie couldn’t get enough of it.

She wiggled her head into Twilight’s cleavage, giggling as she wiggled her head in between both breasts. Dashie nuzzled the breast that she hadn’t sucked from, then sat up. She placed her front hooves on the lower breast and pushed herself up, then wrapped her lips around Twilight’s teat. Like before, the flow of milk wasn’t strong at first, but she knew the drill.

Twilight groaned as she woke up from Dashie’s actions. The pressure in her breasts was very minimal, and she smiled when she realized that Dashie was getting her fill. I wonder if this is what it feels like to be a mother, to be woken up by a hungry foal every morning... A soft blush tinted her cheeks as she looked down at Dashie, missing her soft pillow. She lifted her right hind leg and set it behind her other leg, giving Dashie a little extra breathing room.

Flicking her tail around her foal, Twilight patted the back of Dashie’s diaper and felt that she needed a change. “Good morning, little one...” she said softly. Dashie stopped sucking on her teat and looked up at her, a bit of milk drooling out of the corner of her mouth. Twilight giggled softly as she lit her horn to clean it off. Figuring that Dashie got her fill, Twilight leaned down and nuzzled the top of her head, right in between her ears. She heard Dashie hum happily as she nuzzled her back.

“Sleep well?” Twilight asked. Dashie nodded, then slid back under Twilight’s wing, snuggling up against her side just like before. “Oh, you wanna sleep some more?” She felt Dashie nod. “Hehe, okay then... We can sleep in for another hour or so.”

Just as she was about to lay her head back down on the pillow, she heard a soft knocking come from downstairs. She figured that it was just a guard or one of the maids, so she made sure her bedroom door was locked with a quick spell, then she closed her eyes again.

Somepony knocked again, this time much harder.

“Fine... fine, I’m coming...” Twilight grumbled. She folded her wing back to her side and stood up, stretching her legs and wings. She let loose a small yawn and hopped off of the bed. “I’ll be back in a minute or two, Dashie. I just want to see who’s at the door, okay?” She looked over her shoulder and saw Dashie giving her the biggest puppy dog eyes ever. “Oh, I’ll only be gone a couple of minutes!” She laid a kiss on the tip of Dashie’s muzzle. “And I’ll be sure to change you when I get back, okay?” She wrapped the blanket around Dashie and tucked it in around her.

Hearing the pony downstairs knock again, this time much faster than before, Twilight rolled her eyes and trotted downstairs. “Who in their right mind would come here so early in the morning?” She looked at the clock beside the door and saw it was a few minutes before seven. After running a hoof through her mane a few times to try to get rid of her bedhead, Twilight opened the door.

“Princess Luna?” Twilight cocked her head to the side as Luna walked inside, several shopping bags held up in her magical grasp.

“Why, a good morning to you to, Twilight Sparkle!” Princess Luna looked all over the place. “‘Tia told me everything last night! So, where is she? I’ve got so many outfits that it’s gonna take all day to go through!”

Twilight took a step back in surprise. Her ears flicked forward as she closed the door. “And I’m guessing that’s why you came so early?”

“Well...” Princess Luna blushed and giggled. “Celestia made it clear that I was to let the two of you sleep through the night before I came to see you. The moment she told me that you were here with a foal of your own, I simply had to see them!” Her tone abruptly changed from one of utmost excitement to one of hesitation. “To be perfectly honest, Twilight, I...” Luna bit her lip and rubbed her foreleg sheepishly. “I had thought our friendship was strong enough for you to confide in me that you had found a stallion. I was very surprised to hear that you gave birth to a foal of your own, especially knowing your, um... preferences.”

“Uh... yeah, about that...” Twilight chuckled and scratched the back of her head. “I didn’t exactly have a foal, I kind of... you know.... transformed my marefriend into a foal because she asked me too,” she said, speaking as quickly as she could. Twilight blushed madly, a nervous giggle escaping her. She found it particularly hard to meet Luna’s gaze.

Luna paused and placed her bags down between them. “Pray tell, what do you mean?” She cocked her head to the side and flicked her ears up to face Twilight.

“Uh... well, you know my marefriend is Rainbow Dash, right?” Twilight asked slowly. Luna nodded. “She wanted to be treated like a foal for just one night, and... things went kind of wrong.”

“I... I don’t understand, Twilight.”

Twilight sighed, knowing she was going to have to show Luna Dashie sooner or later. “Just follow me and you’ll see what I mean.” Twilight lit her horn and grabbed Luna’s bags for her, then led her upstairs. “Oh, and I call her Dashie now. Dashie is a name more fitting for a foal, and it’s what she wanted to be called when... well, you know.” Twilight gently opened the door and poked her head inside to find Dashie fast asleep on the bed, curled up into a ball. “Shhh... I think she fell asleep again.”

Luna nodded, then pushed the door open the rest of the way with a hoof. As soon as she saw Dashie curled up on the bed, her face lit up like a Hearthswarming tree. She squeed and pranced her way to the bed, and when she reached it she pranced in place with a large smile on her face. “Oh my gosh, Twilight, she’s soooooooo cute!”

At that, Dashie woke up and looked up at Luna with bleary eyes. She squinted up at the Princess of the Night and cocked her head to the side. “Pwincess Woona? Dat you?”

Luna squealed in excitement like a schoolfilly that just got news that school was cancelled for the rest of the week. “She can speak? But she’s a foal! You must tell us everything!” Luna hopped onto the bed and settled down around Dashie.

“Alright, but she needs to get changed first,” Twilight said with a chuckle. She lit her horn and lifted Dashie from the bed. Luckily enough for them, Celestia had provided them a fully stocked changing table. Twilight gently set Dashie down on her back and undid the tapes on the used diaper. She lifted her up and slid the diaper out from under her, then tossed it in the nearby diaper bin.

“Hm... where to start, where to start...” Twilight muttered. She leaned down and grabbed a new package of diapers with her hooves. “Dashie wanted to have as real a situation as possible, so I did some research and found some spells that made things realistic for her. She’s a foal through and through, except for the part where her adult mind is still perfectly intact. That explains how she can speak.”

“But... she speaks like a foal.” Luna paused and rubbed her chin, then smiled. “Was that one of the spells you used on her?”

Twilight nodded. “Mhm.” She lifted the package of diapers up and used her magic to tear open the plastic, then pulled one out. It was noticeably thicker than the diapers she had bought for Dashie back in Ponyville and the plastic was much more crinkly. And to top it all off, it had cute little pictures of the Wonderbolts all over the front landing zone. Twilight chuckled to herself, wondering if Celestia had bought these ones on purpose.

Twilight wiped off Dashie’s privates with a few foal wipes, then disposed of them in the diaper bin. She sprinkled powder on Dashie’s privates, making sure she didn’t miss a spot. Next, she opened up the diaper and sprinkled in some extra foal powder on the interior, just to be extra sure. After that, Twilight lifted Dashie’s butt up into the air again and slid the new diaper under her rump. She threaded her tail through the hole in the back with a little bit of difficulty, then snuggly taped it all up.

“There we go, all better now!” Twilight blew a raspberry on Dashie’s stomach, making her filly laugh uncontrollably. Twilight felt Dashie try to push her head away, but she was much too weak to do anything about it. She let a few more seconds pass before she relented. As Twilight pulled back, Dashie playfully glared at her, then reached for her as she wiggled her hips.

“Alright, let’s go back to Luna and see what she brought you, hm? You like presents, don’t you?” Twilight asked as she placed Dashie on her back, right between her wings.

Dashie stood up on shaky legs, placed her front hooves on the back of Twilight’s head, and tried to get a good look at what Luna brought her. “Pwesents? What pwesents?”

Princess Luna held up a frilly pink onesie with white lace trimming. “We’re going to play dress-up!”

Dashie groaned and collapsed against the back of Twilight’s neck. Oh, come on! Anything but that!

Chapter 2

Dashie crossed her forelegs and glared at Twilight as she placed her right in front of Luna, hoping that she would see how unenthusiastic she was about playing dress-up. She huffed and flicked her tail around her rear as Twilight hopped up onto the bed, lying down across from them. Dashie tried to squeeze her hind legs together, but the thick diaper prevented her from getting anywhere close. She poked the front of the diaper, trying to gauge its thickness. Woah... this diaper is super thick! Dashie tried to squeeze her hind legs together again, and when she didn’t do any better this time, she stood up and took a couple of steps toward Twilight.

Dashie giggled as she found that she had to waddle just like a foal would. The diaper spread her hind legs so much that it prevented her from any form of regular walking. She nearly tripped over her own hooves a couple of times as she crossed the short distance to Twilight. It was such an effort to walk like that that Dashie decided to try crawling the rest of the way.

She crawled in between Twilight’s forelegs and turned around, then she leaned up against Twilight’s chest. Dashie curled her forelegs up and nuzzled Twilight’s neck, letting off a soft hum of happiness. She felt Twilight wrap her hooves around her padded rear, holding her close. Dashie laid her hind legs on top of Twilight’s hooves, then wiggled her hips as she felt Twilight’s warmth seep into her back.

I love you so much, Twilight... Dashie thought as she started to feel sleepy again. She sighed and closed her eyes. She snuggled up against Twilight’s breast and yawned obnoxiously loud, hoping that by falling asleep she’d be able to get out of trying on those awful-looking foal clothes. Dashie felt the diaper swell and warm between her legs as she relaxed. She cracked open an eye and saw the yellow wetness indicator strip change to a soft blue. I can’t believe that I’m actually fully incontinent... Dashie blushed, her ears flicking back. I didn’t even know I had to go... She grinned sheepishly and glanced up at Twilight.

“So which one shall we put on her first, hm?” Luna asked. She held up the same frilly pink onesie from before along with a blue one, holding them side by side.

Oh please, please, please not the pink one! Dashie thought.

“Hm... I think she’d look really cute in the blue one!” Twilight said with a soft giggle. “Though, to be honest... I’ve always thought that Dashie would look cute in pink.”

Luna giggled, though she tried to hide her smile with a hoof. “Yes, well, hot pink does go well with her coat color. Lift her up, and we’ll get this one on her in no time!”

Dashie groaned and let her legs go limp as she felt Twilight’s magic surround her. She never got used to the tingly feeling of Twilight’s magic and while she didn’t like to be levitated about like a filly’s doll, she trusted Twilight enough to know that she was perfectly safe in her magical grasp.

Twilight slowly lifted Dashie into the air, chuckling to herself as she watched Dashie act so depressed. Luna levitated the blue onesie up under Rainbow’s rear legs, undid the shoulder snaps, and started to lift the garment up. Dashie kicked the onesie with her rear hooves, but that did little to stop her inevitable dressing. She tried kicking some more, but Twilight’s magic wouldn’t let her. Dashie glared at Luna and huffed again, holding her hind legs up as far as she could.

Luna chuckled, then stopped trying to force the onesie on Dashie. “Aww, the wittle foal doesn’t wike the Wonderbolts onesie I got for her?”

Dashie’s ears perked up. “Wondabolts?” Luna held up the onesie for her, letting her see all of the lightning bolts and the Wonderbolts logo. “Hm.... okay den, but onwy because it’s cool!” She relaxed and let her hind legs go limp.

“Oh yes, it is very cool!” Luna exclaimed. She lowered the onesie back to Dashie’s hooves and pulled it up her legs. The buttoned crotch was pulled snugly up against her diaper, then she helped Dashie thread her forelegs through the openings, and finally snapped it shut. “And it makes you look really cute!” she added as she set Dashie back down on the bed.

“What do you say, Dashie?”

Dashie looked up at Luna and smiled sheepishly. “Tanks, Pwincess Woona.” She sat down and looked over at Twilight, a needy whine escaping past her lips. Woah! Where’d that come from?

Twilight got the hint. With a soft chuckle, she levitated her back up against her chest, holding her between her forelegs. “Aww, does Dashie wanna snuggle some more?”

Dashie giggled and blushed. She looked away from Twilight and nodded. “Can’t help it, Mama... you so soft... warm...” I weally love it when you hold me... She rolled onto her side and curled up into a ball, then pressed her back up against the side of Twilight’s leg. Dashie tried to fluff her wings, but found that the onesie didn’t have any openings for them. She bit her cheek as she took a few deep breaths, trying to not get agitated. Foals like me aren’t allowed to fly... Dashie reasoned with herself.

“And I think you’re the most adorable wittle filly ever.” Twilight kissed Dashie’s cheek. “You know why? Because you’re my filly!” Dashie smiled widely and nuzzled her leg. “But we did just get up. I promise we’ll snuggle some more later, okay?”

Dashie groaned. She rolled onto her back and crossed her forelegs, making it clear to her that she didn’t like that.

Twilight scratched her chin as she thought. “Alright, how about this? When we get back from breakfast, I’ll lay on my back and let you lay on my chest. I’ll wrap my wings around you, and then I’ll sing you a lullaby until you fall asleep.”

Dashie thought about it for a moment, then nodded with a smile as she sat up. That actually sounds... weally nice.

“Fantastic.” Twilight nuzzled Dashie again. “Ready to try on the next onesie? I think we should try on the pink one next!”

Dashie groaned and crossed her forelegs again, a sour expression slipping onto her face. She stuck out her bottom lip as she pouted. “Nah, Wondabolts one betta!”

“Oh, stop being such a foal.” Twilight said, making Luna giggle. She heard her stomach grumble. I sure could go for some breakfast soon. Twilight looked up at Luna. “Is it alright if we cut this short? I’m getting pretty hungry and I’d like to go out to an old cafe my family used to visit when I was younger.”

Luna yawned and blinked a few times. “That is fine by me. To be honest, I couldn’t sleep a wink yesterday when Celestia told me you were here with a foal of your own.”

Twilight nodded. “Why don’t you go and get some rest? I’ll bring Dashie up to the castle so we can continue playing dress-up later!”

“That sounds wonderful, Twilight.” Luna stood up and slid off of the bed. She cracked a warm, comforting smile then nuzzled Dashie. “I can’t get over just how adorable she is! I’m sure you two are going to have lots of fun.”

“Oh, I’m sure we will.”

Princess Luna trotted towards the bedroom door but stopped right before she was about to open it. “I almost forgot! I meant to tell you that my sister stayed up all through the night trying to find a solution to your problem. She wanted me to tell you that she is very close to finding a solution, and that you should stop by for dinner.” She glanced at Twilight’s breasts then looked away, her cheeks a soft, rosy pink. “Also... you might want to find yourself a bra. Trotting around town might cause some discomfort with breasts of that, um... size.”

“What, are they that big?” Twilight cocked her head to the side, feeling rather self-conscious about herself. She looked down at her breasts and lifted her right hind leg to get a better look. Okay, maybe I did make them a little bit bigger than normal...

“Well... they are slightly bigger than average, but nevertheless, a bra would do you wonders to help support them.”

“Alright, I’ll... I’ll look around for one and see what I can find.” Twilight lowered her leg. “Thanks for the suggestion.”

“You are quite welcome, Twilight. I shall get some rest now, and I look forward to the four of us having dinner tonight.” With that, Luna nodded at her and walked out of the room.

Twilight heard the front door close moments later. “So... you wanna try on the cute pink one, Dashie? It looks super cute, and it looks like it’ll keep you really warm!”

Dashie glared at her, then relented. She didn’t want to let Twilight down, and even though she would never be caught dead wearing anything pink in public, she knew that it would make Twilight happy if she tried on the other onesie. Besides, the sooner she gave in, the sooner they’d be able to wrap all of this up.

“Alwight...” Dashie let Twilight pull the onesie off of her. A small shiver ran down her back as the cold air quickly sapped what little warmth she had.

Twilight grabbed the pink onesie with her magic and undid the snaps on the crotch. This one was made of a thicker material, which meant that it was most likely made for the winter. She pulled the bottom of the onesie over Dashie’s head and used her magic to help Dashie put her forelegs through the right holes. She snapped the buttons over the crotch again and grinned slyly at Dashie.

Okay... This isn’t so bad. So long as we don’t go anywhere with this on... “You not gonna make me wear it outside, wight?”

Dashie pouted on Twilight’s back, a sour expression on her face as they trotted through the streets of Canterlot. In addition to the frilly white lace that decorated the crotch of the onesie, Twilight had tied a matching pink bow in her mane, centered right behind her ears. It was almost as big as her head, and she wanted nothing more than to take it all off. The only reason why she hadn’t done so already was because it was pretty cold outside and the onesie was doing a good job of keeping her all nice and warm.

“We’re almost there, Dashie!” Twilight said as she looked over her shoulder. “It’s just around the corner!” Her saddlebag was stocked with some extra diapers, foal powder, and a package of wipes, definitely enough to last them for their little trip. Her breasts felt like they were getting swollen again, and the muscles near her lower belly felt like they were straining to support the new weight. So that’s what Luna meant... Looks like a bra isn’t such a bad idea after all. I’ll just have to go and pick up a few after breakfast! Good thing Celestia left us a big bag of bits!

Twilight’s old favorite foalhood cafe came into sight. It was a small restaurant, tucked away between two bigger businesses. It had a few outdoor tables, but it was much too cold out to eat outside. Twilight pulled open the front door and found the place to be extremely busy. Waiters and waitresses darted all over the place, surprising Twilight. “This place sure is a lot busy than I remember,” she said, shooting a glance over her shoulder.

She spotted an empty table near the back of the restaurant on the right side, right next to a window overlooking the valley. “Perfect!” Twilight made her way towards the table, levitated Dashie off of her back, and placed her between her forelegs. “You warm enough down there, little one?” She laid a hoof around Dashie and rubbed her back, holding her close.

Dashie nodded up at her, a small smile on her face. She sat down and pressed her back up against Twilight’s chest. She pushed her rump between Twilight’s breasts by a few inches and yawned, still rather sleepy.

“Good morning, ma’am! My name is Sunny, and I’ll be your server today!” a gray earth pony said in a cheery voice. “What can I get you today?”

Twilight chuckled to herself. “I haven’t been here since I was a young filly, so... is there any chance you still have those double lemon doughnuts?”

“Yup! We sure do!”

“Perfect! I’ll take three of those. Oh, and a large glass of water, please.” Producing all of this milk for Dashie is making me thirsty...

The waitress took a minute to write that down on her notepad. “Alrighty then! Anything for the little one?”

“Oh, Dashie? No, she can only be breastfed at the moment.”

“Oh, um... okay! I’ll be right back with your order.”

Twilight looked through the window. It was starting to snow outside, and Twilight was glad that they were inside. The waitress came back a few moments later with a plate of doughnuts and the glass of water. “Thank you.”

“Not a problem, ma’am! If there’s anything you need, feel free to ask!” The bubbly mare trotted a few tables down and started talking to some more customers.

Twilight lit her horn and picked up the first doughnut. She scarfed it down to sate the pangs of hunger she felt in her stomach, then as she reached for the last one, movement from the front door caught her eye. She looked up just in time to see her parents walk inside.

Her heart stopped for a moment and her breath caught in her throat. She looked back down at her doughnuts, hoping her parents wouldn’t see her.

“Mama, what’s wong?” Dashie asked. She latched onto Twilight’s left foreleg and tugged it, trying to get her attention.

Twilight hid her face with a hoof and looked down at Dashie. “My parents are here!” she hissed.

Dashie’s ears fell flat on her head and her eyes went wide. “What do, Twiwight?” She whined softly and held onto Twilight’s leg as tightly as she could.

“I—”

“Hey, is that Twilight over there?” Twilight heard her father ask. She cringed, her mind going completely blank as she struggled to figure out what to do. She couldn’t teleport away, especially since she hadn’t paid yet. The newspapers would go nuts if they found out that she dined and dashed, and it would ruin her nice reputation.

“Yeah, I think it is! What’s she doing up here?” Twilight heard her mother exclaim. Dashie was hidden from their view for the moment, but that would change the moment that they walked up to her. She bit her lower lip as she heard them trot her way. Twilight knew that they knew that she was dating Rainbow Dash, and they knew exactly what she looked like.

“Twilight? Is that you?” Twilight heard her father ask.

Twilight turned around and smiled, her heart racing in her chest. She was acutely aware that Dashie was shivering in fright, trying to make herself as small as possible between her breasts. “Hey Mom, hey Dad! What brings you to the cafe?”

“Oh, ever since you and Shining moved out, we’ve come here nearly every morning for breakfast!” Night Light said as he and his wife sat down across from Twilight. “I, uh... woah.”

Twilight saw his eyes drift downward. She knew Dashie was sitting in plain view, and there was very little that she could do to hide her and her breasts from her parents. She had never planned for encountering her parents out in public, and she was at a complete loss of what to do. Her father blinked a few times, cocked his head to the side, and finally, his eyes went wide. He looked back up at her, confusion written all over his face. “Tw-Twilight—”

“Mom, Dad?” Twilight’s left ear twitched a couple of times. “Um, yeah, about Dashie... I can explain.”

Chapter 3

“So... long story short, a spell or two went wrong when Dashie and I were snuggling, and... now she’s the size of a foal.” Twilight took a sip of tea from her cup, then placed it back down on the living room coffee table. She was laying on her side on the sofa with Dashie nestled in between her forelegs, fast asleep. After a quick diaper change, Dashie had curled up into a ball, nuzzled Twilight’s leg a couple of times, then had promptly fell asleep. Twilight wasn’t sure how she was able to sleep, especially during this nerve-wracking situation, but she figured that she probably just needed to nap, like all little foals do.

Night Light nodded, sitting on another sofa across the coffee table. Twilight Velvet sat next to him, her side pressed up against his.

“So... you’re taking care of her like a real mother would?” Twilight Velvet asked with a soft smile. Her daughter nodded. “Well, I think that’s great of you. Little Dashie is lucky to have somepony love her like that.” Her gaze drifted down to where Dashie slept away, then to Twilight’s breasts that sat in plain view. “I remember raising you like it was yesterday. Shining always wanted to play with you whenever you took your late morning nap, but I always had to tell him to be patient,” she said with a giggle.

“How long has she been like this?” Night Light asked, his tone neutral.

Twilight thought for a moment. “Just a few days. Celestia has been looking for a cure, and I’m meeting her and Luna for dinner tonight. I think they might have found something, so... that’s nice.” She blushed lightly and glanced down at Dashie. “But if I was being perfectly honest, I...”

“What, dear?” Twilight Velvet asked.

Twilight bit her lip. “I... I kind of like being a mother. Taking care of something so precious makes me feel all... tingly inside.”

Twilight Velvet looked up at her husband who looked down at her. She smiled at him, then nuzzled his neck with a soft smile on her face. When he nuzzled her back, she said, “I know what you mean. Raising a foal is a lot of work, but it’s worth it in the end.” She looked back at Twilight, her smile faltering ever so slightly. “But with your choice in a lover...”

“I know, Mom,” Twilight said, her voice soft and with a hint of regret. “Two mares can’t make a foal, but...” She looked down at Dashie and laid a light kiss on her head. “Rainbow Dash is worth it. She’s everything I could ever dream for in a partner, and, well... I truly do love her.”

“Well, I’m very glad to hear that you’re happy,” Night Light said with a small smile. “You two look really cute together, even when Dashie is just a cute little foal.”

Twilight felt a little bit of relief flow through her. She relaxed and took another sip of her tea. “Thanks, Dad.”

Dashie stirred a little bit, then cracked an eye open. She stretched then licked her lips, wiggling her hips all the while. So wam... Me like this a wot... After a short yawn, she rolled over onto her back and rested her head on the side of Twilight’s leg. She blearily blinked a few times, then smiled when Twilight looked down at her. Dashie felt so content, so happy that her mommy was right there for her. “Wha time is?” she asked.

Twilight glanced at the grandfather clock. “It’s about three-ish. You were out for quite some time, little one!” She leaned down and nuzzled the tip of Dashie’s nose, eliciting a happy hum from her foal. “And in just a little bit, we’re gonna go to see Luna and Celestia to see if they’ve found a way to change you back!”

“Gweat...” Dashie yawned again. The cute pink onesie she was wearing had kept her all nice and warm throughout her nap, and even though she wanted to take another nap in her beautiful and sweet mother’s embrace, her body had other needs attending to.

Twilight heard Dashie’s stomach grumble. “My cute wittle foal hungwy?” she asked in a light sing-song voice. Dashie nodded up at her with a bashful smile on her face. “Alright then! Up we go!” She lit her horn, gently lifted Dashie up, and placed her near her swollen breasts. They had been sore for the past hour or so, but Dashie had looked so sweet and adorable that Twilight didn’t want to wake her up. She glanced up at her parents. “You... you don’t mind if I feed her now, do you? All she can eat or drink is my milk, so I don’t really have any other options.” And this couch is too comfy to get up from...

“Oh, it’s quite fine,” Twilight Velvet said with a wave of her hoof.

“Of course. I’ll be back with some more tea.” Night Light slipped off of the couch, then walked around the coffee table. He kissed Twilight’s forehead, then lovingly tousled her mane. “I’m so glad that we ran into you, Twilight.”

“Yeah, me too.” Twilight felt Dashie start to suck from her as her father walked into the kitchen. “So, Mom... Luna mentioned something about buying bras to help support my breasts. Do you know anything about them? Because I sure don’t.” Twilight giggled, her tone slightly nervous.

Twilight Velvet nodded. “I sure do! Why, do you need some? By the looks of it, I think you do.”

Twilight blushed a little. “Well, my breasts do get a little sore when I walk around sometimes, but only if feel like they’re about to burst. Good thing my little filly here is almost always hungry. Do you know of any good places to buy a couple of bras?”

“Mhm. Tell you what... Let’s let your father watch Dashie for the next couple of hours, and we can go out and find you a couple bras, my treat!”

Twilight looked down at Dashie. “I don’t know... what if she misses me?’

Dashie pulled her lips off of Twilight’s teat. A small line of warm milk slipped from her lips to drip down her cheek. “Twiwight, jus go! I fine here for a wittle while...”

“What about this one?” Twilight Velvet asked, holding up a hot pink bra with little blue rounded stars. “It’s in your size!”

“No thanks, I don’t really care for that design. I want something practical that’s comfortable, looks good, and works good. I’ll be wearing it out in public, too, so I don’t really want anything really flashy.”

“Hm... okay then. What about purple or pink? It’d match your mane colors!” Twilight Velvet held up two bras with her magic.

“What about a lighter purple? I’d like for it to blend into my coat, if they have one.” Twilight Sparkle looked around the small store but didn’t see any bras of the color she wanted.

“Yeah, I don’t really see anything that would match your coat... What about this one?” Twilight Velvet held up a light blue bra that almost nearly matched Dashie’s coat. “They have two of them!”

Twilight held them up with her magic as she looked at them. She ran her hoof inside the cups of the bra. Her eyes widened when she felt just how soft they were. “Okay, I’ll try these on! I think they look cute, and I’m sure Dashie would love to see them in her color.”

“I agree. Now, there’s a dressing room right back there.” Twilight Velvet pointed over her daughter’s shoulder towards the back of the store, just past the cashier. The pegasus behind the counter simply smiled and waved at them.

Twilight waved back, then walked towards her with the bras held in her magical grasp. “I can just walk right in, right?”

“Of course!” the light orange mare said. “Take as long as you need, m’kay?”

“Thanks,” Twilight said with a small smile. She picked the door on the right and stepped inside, then closed the door behind her. She laid one of the bras down on the small chair that sat in the corner, then undid the clasp on the other bra. Watching herself in the mirror, she levitated it down to her breasts, hoping that she wouldn’t leak into the fabric. If she didn’t want these bras for any reason, putting them back on the shelves with breast milk stains in them probably wouldn’t be the best of ideas.

Curious as to how the bra would feel supporting her breasts, she used her magic to lower it near her breasts. Using the mirror, she lifted the bra up and seated her breasts into the soft cups. She wiggled her rear to make sure her breasts were all the way inside the cups, then she lifted the ends up around her lower back and after several moments of difficulty, she was able to hook the two ends together.

Twilight released the bra from her magic and looked over her shoulder. The part of the bra with the clasps sat right where her barrel met her hind legs. She turned to look back in the mirror and blushed as her breasts swayed with her hips. The bra held her swollen orbs snugly, though it wasn’t tight at all. Nearly all of the pressure and strain was gone, replaced by a soft, cool comfort.

Twilight thought she looked adorable.

Deciding to keep it on, Twilight grabbed the other bra, made sure it was the same size as the one she was wearing, and stepped back out into the store. She closed the door behind her and looked up to find her mother waiting a few paces away.

“So? How’s it feel? Wonderful, right?” Twilight Velvet blushed as she looked down at Twilight’s bra. “I remember the first time I felt the wonders of buying a bra for nursing. If you didn’t know, those cups can also stretch a little bit to accommodate the size difference in between feedings. It’s not a huge change, but it helps out a lot.”

“Yeah, okay... It feels different wearing something like this, but not in a bad way.” Twilight swished her hips from side to side, letting her breasts swing from her motions. “It holds my breasts really well. Do you think I’ll only need two bras?”

Twilight Velvet thought for a few moments, rubbing her chin with a hoof. “Well... if you think you’re going to be a mother for the next few days, then two will be more than enough.” She ignored the look of utter confusion from the cashier. “But if you’re gonna be a mother for longer than that, well... you know where to come!” She used her magic to grab the bra that her daughter held in her magical grasp then placed it on the counter. “I’d like to buy this one plus the one she’s wearing, please! They’re both the same, so just ring up this one twice.” Twilight Velvet smiled as she pushed the bra on the counter towards the cashier.

“Alrighty then!” The cashier looked at the price tag, did a little bit of quick math in her head, then said, “That’ll be twenty four bits!”

“Okay...” Twilight Velvet pulled out her purse and counted out what she owed, using her magic to pull one bit out at a time. “Twenty-three, aaaand twenty-four!”

“Perfect! Would you like this other one bagged, ma’am?” the cashier asked.

Twilight Velvet looked at her daughter, silently asking what she wanted.

“Yes, I’d like a bag for the second one, please,” Twilight Sparkle said.

“Okay!” The mare placed the second bra inside a small pink bag, then laid it on the counter for them. “Have a nice day!”

“Thanks, you too!” Twilight Velvet replied with a cheery smile. She grabbed the bag and let her daughter grab it with her magic. “Shall we go back to the house and see what Dashie and your father are up to?”

It took them just over ten minutes to make their way back through the streets of Canterlot. They walked up the steps to the house, and with a quick spell, Twilight pushed the door open. All of the strain from her breasts was gone by now, and even though they were swollen and in need of being drained, they didn’t feel sore in the slightest. “Hello?” she asked, hoping that either one of them would answer so that she could pinpoint where they were in the house.

Nothing but silence met her ears.

She closed the door behind her, then cocked her ear towards the living room. She heard something, but she couldn’t figure out what it was. Placing her bag down by the front door, she trotted into the living room to find both Dashie and her father fast asleep. Night Light was laying on his back on the left sofa, gently holding Dashie as she slept curled up on his chest with his big forelegs.

“Awww...” Twilight Velvet cooed. “They just look so adorable!” As she stepped closer to her husband, she whispered, “Do you remember how he used to do this with you and Shining? Your big brother was always so jealous of you when you got to sleep with your father like this, but by then, he was too big for doing this.”

She paused, now standing beside Night Light. “Wake up, dear, we’re back...” she murmured. Twilight Velvet nuzzled her husband’s cheek until he woke up, then she placed a quick kiss on his cheek as he opened his eyes.

“Oh... hey, you’re back.” Night Light yawned, then gently shook Dashie awake. “Come on, little one, time to get up... your mommy’s back!”

Dashie groaned. Everything felt just right, and she was still exhausted from playing with Night Light. “Wive moar minutes...”

Twilight giggled, then used her magic to levitate Dashie off of Night Light’s chest. He mouthed a quick thank you at her, then slid out from under Dashie. Twilight then set her back down right where her father had just been laying so that her filly could stay all nice and warm.

“How long were you two out for?” Night Light asked as he lay down on the other couch.

“About a couple of hours. We had to go to more than one store because the first one didn’t have anything good. So because of that, we went to that nice one all the way across town, and they had exactly what she needed.” Twilight Velvet said as she lay down on the opposite side of the couch her husband was on.

Mimicking her parents, Twilight settled down around her filly and covered Dashie with a wing.

Dashie hummed in content and snuggled closer to Twilight. She didn’t even have to open her eyes to know it was her. She would know her mother’s sweet and comforting scent anywhere, and besides, Twilight was the only pony to have wings in the house, so that was obviously a dead giveaway. I wuv you, mommy... Dashie buried her muzzle into Twilight’s side, pressing it between her belly and the couch. Both were wonderfully soft, and Dashie wanted nothing more than to fall asleep again, just like this.

She had had so much fun playing tag with Night Light. Once she was tired from running all over the place, they had played hide and seek, but only on the first floor. Night Light had told her that he didn’t want her trying to climb up and down the stairs. Dashie felt like she could sleep for ages, and she had every intention to do so, but a tiny part of her mind reminded her that she and Twilight had to go see Princess Celestia to find out if she had found a cure for her present situation.

Even though she wouldn’t readily admit it, Dashie loved being Twilight’s foal.

Part of her wished things could stay like this forever.

Chapter 4

Twilight kept Dashie balanced on her back as they made their way up the stairway to Luna’s private dining hall. Since it was just going to be the four of them, there was no need to have their meeting in the big dining hall. Upon arriving at the castle, the guards at the front gate had recognized her instantly and had told her that the princesses were expecting her in Luna’s part of the castle.

Her adorable filly was back in the Wonderbolts onesie that Luna had been gracious enough to give them. Twilight wasn’t sure how long they’d be at dinner, so on the way back from her parents’ house, they had stopped off at their tower to replenish their supplies, mainly diapers. While there, Twilight had let Dashie pick which onesie she wanted to wear.

Twilight, panting softly, reached the top of the final set of stairs. “Dang... we should have just teleported there instead...” Twilight took a few moments to catch her breath, then began walking. As she neared the end of the short hallway, she smiled and nodded at the two guards who held open the double doors for them.

Celestia and Luna sat at the far end of the room on opposite sides of the table. Thin marble pillars ran on both sides of the room. Just past the table, up against the far wall, lay too many pillows for Twilight to count. As the doors shut behind her with a soft click, both Celestia and Luna looked up at them.

Dashie shimmied up Twilight’s neck, then wrapped her hind legs just under Twilight’s chin as she finally managed to poke her head over Twilight’s. She trusted Twilight more than anypony in the world, especially after all that she’d done for her, but part of her still liked to know exactly where they were going. She laid her head right between Twilight’s ears and stared ahead. Dashie blinked blearily and licked her lips. Twilight’s mane was so soft, and her warmth was gently lulling her back to sleep.

She smiled and closed her eyes, wanting nothing more than to fall asleep right then and there, but they were here to see if Celestia had found a way to turn her back into a real mare. Truth be told, she was going to miss being a foal. Actually being taken care of while in the body of a foal was the craziest thing she’d ever done, and she knew with one hundred percent certainty that her bond with Twilight had strengthened.

Dashie couldn’t wait to snuggle with her marefriend, as a mare, after all of this was over.

“Good evening, Twilight,” Celestia said with her usual soft smile.

“Good evening, Celestia.” Twilight sat down next to Luna and used her magic to place Dashie down on the table, who promptly curled up into a ball. Twilight smiled at that, then glanced between Luna and Celestia. Thick tension hung in the air. Luna wouldn’t meet her gaze, and Celestia’s eyes held an aura of worry that Twilight did not see often. She cocked her head and looked Celestia dead in the eyes. “I suppose there’s no beating around the bush. Did you find a solution to Dashie’s problem?”

“Na pwobwem...” Dashie mumbled with a flick of her tail.

Twilight giggled. “I’m sure you’re having fun, Dashie, but sooner or later, we’re gonna have to change you back to a mare.” She leaned forward and nuzzled her foal’s back, right in between her wings. “And to be perfectly honest... I want my marefriend back.”

Dashie perked up at that, for Twilight’s voice had changed from her usual calm tone to one of regret. Her ears flicked up and she lifted her head to look at Twilight. “Ah wuv woo, Twiwi. Ahways!” She pointed a tiny hoof at her and smiled hoping to reassure her, but Twilight’s expression softened only a little bit, not as much as she was hoping.

Twilight rubbed Dashie’s back with a hoof. “I love you too, Dashie, but I would love to have you as you again. I really don’t mind taking care of you, you know that, but I’m really hoping that Celestia has found a way to change you back.” Her eyes flicked up to Celestia’s again, then she stayed silent.

Several moments passed in an awkward silence, making Twilight’s worries grow. “Well?”

Celestia took a deep breath and let it out slowly. “I... found something, yes,” she said delicately, choosing her words carefully. “I discovered a way to let... Dashie change back, but I do not know if you will like it.” She bit her lip and cleared her throat. “You see, the spells you used somehow combined in a way that trying to undo one would unnecessarily strengthen the other spells. It is like trying to untie a knot of four strings. You pull on one end, and the knot tightens.”

“So...” Twilight trembled with uncertainty. “What do we have to do?”

“Like I said... you are not going to like this, but... In order for Dashie to become Rainbow Dash again, she has to let go.”

“Let go?” Twilight cocked her head to the side.

Celestia nodded. “You said that she still retains her adult mind, right?” Twilight nodded slowly. “Well, her foal mind cannot hold the mind of an adult. From my research, she is slowly losing her mind, or, to be more precise, she is losing her mind to that of a foal’s. Fighting to keep that adult mind is hurting her, and is keeping the spells from wearing off.” She looked at Dashie. “Are my assumptions correct, Dashie? Have you found some things harder to think?”

Dashie’s ears flicked back. Her head lowered, and if she was on the floor next to Twilight, she would have hidden behind Twilight’s legs. She bit her lip as tears formed in the corners of her eyes. After a few moments of silence, she nodded slowly.

“I thought so...” Celestia murmured. “Believe me when I say this, you two, for this is not a bad thing.”

“What?” Twilight scoffed. “How can that not be a bad thing?”

“Well, unlike the knot analogy I used a few moments ago, the spells you used on her will wear off in time. Depending on how much power you used in the creation of these spells, and depending on the time between each spell, it could be anywhere from a week to a few months. The spells you used on yourself, Twilight, should have worn off by now, or will wear off in a day or two. I am referring to, of course, the spell giving you functioning breasts with the addition of having your milk make Dashie incontinent.”

“Okay...” Twilight said slowly. “So we just have to wait for these spells to wear off? But what about Dashie turning into a foal? That was a side effect of all the spells I used, and since it wasn’t an actual spell, we’re still going to need a spell to return her to that of an adult.”

Celestia nodded, then took a sip from her teacup. “Yes, I was about to get to that. You remember when that showmare, Trixie, showed up looking for revenge, as you called it? I remember reading in your letter to me that she had used age-changing spells.” She pushed a folded piece of parchment across the table with her magic. “This is a variant of that spell that I crafted for you personally. It is meant for your eyes only, and I trust that you will not abuse it like Trixie did.” A sly glint twinkled in her eye.

Twilight used her own magic to stuff it into her saddlebags. “So what do we do now?”

“We wait. Like I said about your spells wearing off, the spell to give you breasts was supposed to have worn off by now, but I think that since they are still being used, your body has simply accepted it as normal. They will disappear when you stop breastfeeding Dashie, like they do with every other mother. I’m sure that the spell giving Dashie incontinence has faded off by now since its function has already been accomplished.”

“So, in order for Dashie to become a mare again, she has to give up her mind? Who she is?” Twilight’s ears flicked back and her shoulders slumped. “I don’t know if I can do that. I don’t know if she can do that...” Her gaze flicked to Dashie and found her trembling. “Aw... there, there, Dashie...” She lifted her up and cradled her in her forelegs. Dashie stared up at her as she snuggled up against her chest. “Everything’ll be alright... I promise...”

“You would make an excellent mother...” Luna murmured as she laid a wing over Twilight’s back.

“...I know.” Twilight smiled up at Luna, grateful for the comforting gesture. “But I would much rather have my marefriend back than be a mother.”

“That I can understand.” Luna tightened her grasp on Twilight with her wing, then folded it back to her side. “I am certain that Dashie will retain her memories through this ordeal, but will simply be unable to access them until she is an adult again.”

“I understand...” Twilight looked down at her foal. “So, what do you think of all that, Dashie?” she asked softly.

“Ah dunno...” Dashie squirmed and folded her forelegs up to her chest, letting her tail hang over the edge of Twilight’s legs.

“Is there really no other way?” Twilight asked, glancing up at Celestia.

Celestia shook her head. “I am sorry, but no, I was unable to find any other way. I am glad though, that I was able to determine for certain that the spells will wear off in time.”

“Yeah...” Twilight looked back at her foal. “So what do you think, Dashie? I don’t really see any other choice, so... do you wanna be my adorable foal for a wittle while? I know your mind is changing, so... you need to stop fighting it. The sooner you let go, the sooner you can become my beautiful and stunning Rainbow Dash again...”

Dashie didn’t even have to think about that. She had no problem being Twilight’s foal for a little while longer if it meant that she was going to be able to become a mare again after the spells faded, but she still felt a little scared of what it all entailed. She was never one to give up, but she knew in order to win, that was exactly what she had to do. “Kay...” she smiled nervously, let her ears flick back, and relaxed. Dashie closed her eyes and took a deep breath. “Wan snuggles...”

“You... want snuggles?” Twilight chuckled, then set her down between her legs. She used her magic to undo the bra, giving Dashie access to her breasts, then said, “Once we’ve both had our fill, we can snuggle as long as you want...”

Chapter 5

With Dashie asleep on her back, Twilight brought her back to their bedroom. With her breasts empty, her bra felt a little loose, but she knew that she’d be nearly bursting again by morning. Her sensitive nipples had leaked a little bit into the bra on the way back from dinner, only to be soaked up by the fabric. She was more than thankful that her mother had bought her something to manage her breasts, for she was sure that she would have leaked a trail of breast milk all the way back to her bedroom. The thought to get some kind of absorbent pads to place inside each cup crossed her mind, so she decided to think more on the subject later when she wasn’t so tired. As she closed the door behind her, she climbed up the steps, her breasts swaying from side to side with each step she took. Once she reached the top of the steps, she paused and checked her bra with a hoof. She felt the inside was still slightly damp, but the outside remained dry. “Huh, good to know when I go out in public next time...” she whispered to herself. “I wonder how much they’ll hold before they leak.” Looking back up, she walked across the room to her bed. “Hehe, maybe I should put a couple of Dashie’s diapers in there, just in case...”

She used her magic to set her adorable foal down on the bed, then grabbed a fresh diaper from the pack laying near her nightstand. She knew that the regular daytime diapers that she used wouldn’t hold up through the night, especially since Dashie had just drained her breasts, so she was grateful for some thicker, overnight diapers. They had a lot more padding, and were thicker because of it, so Twilight was reasonably certain that she wouldn’t have any problems with leaking during the night.

She unbuttoned the bottom of Dashie’s onesie, then tugged the loose fabric up, revealing a very-soaked diaper. Lighting her horn, she undid the tapes, pulled it off of her, then wiped her clean with some nearby foal wipes. Twilight tossed the used diaper and wipes in the trash, powdered her foal’s bottom, then taped her up in the overnight diaper, making sure it was nice and snug. After she redid the buttons on her onesie, Twilight used her magic to take off her bra with a sigh, setting it down next to the other one that still remained in the bag from the store. She climbed into bed, then used her magic to pull Dashie up against her chest.

Dashie woke up as soon as she felt Twilight lay a wing over her, leaving just her head exposed. As memories of what they talked about at dinner flew into her mind, she groggily pushed herself up with a hoof and sat on her haunches. She tried to close her hind legs, but found that she was unable to do so, for her new diaper was so thick that it would probably force her to waddle about like a real foal if she had to walk. Pushing that thought aside, Dashie licked her lips and looked up at Twilight, her ears flicking to lay flat on her head. “Tho...” Her eyebrows furrowing, she cleared her throat and concentrated really hard. “Sth—ugh! Sth... Sth... S-So...” A wide smile broke out on her face. “What do you wanna do?” she asked, speaking slowly as she struggled to speak normally.

Twilight shot her a gentle smile and tousled her mane. “Like the princesses said, you have to let go and become a real foal, through and through. I know that might seem scary, but you know I’ll always be here for you, no matter what, and I don’t care how long it takes for you to transform back to a real, full-grown mare. Besides, you are rather cute as an itty bitty foal.”

“Heh, tanks...” Dashie blushed and rubbed her foreleg with a hoof. “Stho... how wih it work?” she asked.

“Well... you have to stop talking and thinking like an adult, for starters,” Twilight said with a light giggle. “After that, I’m not really sure. I’d suggest to just act like a foal would, you know? Just do what feels natural, and don’t fight it. I don’t know how long the process will take, but I wouldn’t be surprised if you were still able to speak a little, though not with the mind of an adult, of course. We’ll just have to see, won’t we?”

“Ya!” Dashie’s ears perked up as she wrapped her tiny forelegs around Twilight’s neck.

Twilight laid a small kiss on her foal’s forehead as she snuck a glance at the clock. “Alright, time to get some sleep, okay? I put you in a thicker diaper tonight, just in case. I know you’re already incontinent, but I just wanted to make sure that you don’t leak, especially since we’re in my old bed.”

“Okay, Momma...” Dashie yawned as she slipped back down to Twilight’s side. She pulled Twilight’s wing over her, then snuggled back up into her grasp. Her right hind leg twitched as she felt her diaper grow a little warm, but she paid that no mind. With the diaper keeping her hind legs spread wide, she opted to sleep on her back, her head nestled in the crook of Twilight’s foreleg. She was used to sleeping on her side, but since she was so tired, she figured that she could just give sleeping on her back a shot. “I wuv you...” she whispered softly, letting her eyes drift shut. The warmth from Twilight’s body, combined with her soft wing and the onesie she was wearing, quickly lulled her to sleep with a little smile on her face.

As Dashie started to snore, Twilight used her magic to flick off the light and pull the covers up just enough to keep Dashie’s head exposed. As she laid her head down on the pillow, she wondered just how long it would take for Dashie’s transformation to become complete.