Rainbow's Foalish Fantasy

What the... Twilight thought as she stared at Rainbow. No... there's no way she's a foal now... Not wanting to believe her eyes, Twilight shook her head and looked back down. A foal-sized Rainbow stared back up at her, tears brimming in her eyes. "Dashi... er, Rainbow, I... I..." She trailed off, at a loss for words. "You're a foal!" Twilight said, mentally hitting herself for stating the blatantly obvious.

"Mama! What's wong wif me?" Dashie cried out as she crawled towards Twilight, the oversized diaper making it hard to move. Latching onto one of Twilight's forelegs, she finally let the tears fall as she felt Twilight pull her close with a wing.

"There there, Dashie, Mama's here..." Twilight said softly, rubbing Dashie's back. As the foal cried into her shoulder, she bit her lip, trying to figure out how to rectify this most peculiar of situations. She wasn't sure what had caused Dashie to regress several years back to her foalhood, and in her groggy state of mind, she wasn't going to be able to figure anything out without getting a couple cups of coffee in her first. Maybe the magic was too powerful for Dashie's body to handle? Ugh... how could this have even happened?

Wondering if she still had her crotchboobs, she looked down and was surprised to find them still there. Her book had said that they would shrink back to their normal size overnight, but that obviously wasn't the case here. Twilight touched her left one with a hoof and hissed in pain; they were really sore and felt full. She knew that their plan was to keep Dashie in diapers till around noon today just to make sure that she wouldn't have any accidents due to her being incontinent, but she was starting to rethink that plan given their current situation. She didn't want to come off as selfish, but there was no getting around this; either she had to let Dashie breastfeed from her again or she was going to have to find some other way to relieve the pressure. On top of that, the diapers that Rainbow had brought over weren't going to fit her anymore; she'd have to use the ones that Spike wore when he was still young.

"Dashie? Mama has to go and get something, okay?" she asked softly, brushing Dashie's mane out of her face. Twilight wiped the tears from her foal's eyes, only to have Dashie latch on to her tighter. "I'm not going anywhere, Dashie..." Twilight cooed reassuringly. "Here, why don't you come with and help Mama out, hm?" Gently prying Dashie's legs from her own, she levitated her onto her back and grabbed Mr. Bunny Wabbit for her to snuggle with. Feeling the oversized diaper smush against her back, Twilight trotted across the room to the cupboards and pulled open the bottom drawer, searching for what she hoped she still had.

"Aha!" she said with a smile as she pulled out a package of foal-sized diapers. "I knew I didn't throw these away!" Pulling out the opened package, Twilight was glad to find that there was about half of the package remaining. "Alright, Dashie, let's get you in a diaper that actually fits you!"

She trotted over to the changing table, using her wings to keep Dashie from sliding off of her back. Twilight levitated Spike's old diapers over and pulled one out of the package, then looked over her shoulder to see Dashie clutching Mr. Bunny Wabbit to her chest. "Ready to get changed?" Twilight asked. When Dashie nodded back, Twilight lit her horn and gently grabbed her with her magic. "And up we go!" she said as she picked her up, laying her on her back on the changing table right next to the fresh diaper.

Twilight went to work, untaping the used diaper from her foal. Even though she had no idea what they were going to do to fix this situation, she knew she had to change Dashie into a better fitting diaper first. They wouldn't want her to have any accidents, after all. Lifting Dashie's hind legs, she pulled the used diaper out from under her and tossed it into the diaper pail. As she heard Dashie let out a few soft sniffles, she glanced up at her and made a funny face, hoping to get a smile from her distraught foal. It took a few seconds, but she made Dashie giggle all the same, making her smile back.

After her small giggle fit subsided and as she watched in rapt attention, Twilight wiped her nether regions clean with a wet wipe, eliciting another giggle from her. Twilight shot her a playful glare and unfolded the new diaper, chuckling when Dashie hid her head behind Mr. Bunny Wabbit. Without wasting a moment, she lifted Dashie's hind legs again, threaded her tail through the hole in the back, and slid the new diaper under her, giving her privates a good powdering to ensure she wouldn't get a diaper rash. She gently let her legs fall back down, used her magic to swiftly pull the front part up between her legs, and then taped it all together.

"There! All done!" Twilight said cheerily, giving Dashie's diaper a few pats. Now is the time to talk with her... to try and figure things out... a voice inside her mind spoke, breaking her from the cute moment. Twilight bit her lip and nodded to herself, then picked Dashie up and brought the two of them over to where all of the cushions lay. She found a particularly comfy one and lay down on her side, taking care to not sit on her still-sensitive crotchboobs. If she thought they felt full a few minutes ago, they felt really full now, making her consider to actually let Dashie breastfeed from her again. She suspected that her breast milk had something to do with Rainbow's change, so she decided to hold off on letting Dashie drink from her. Though right before she opened her mouth to ask if Dashie knew anything about how she was now a foal, she heard a loud grumble come from the foal's stomach.

"Aw, is my wittle Dashie hungwy?" Twilight asked in a foalish voice, giving Dashie a gentle nuzzle on her nose. "I have some foal food if you want some!" Dashie nodded back silently, never letting go of Mr. Bunny Wabbit. Twilight saw her flank wiggle in excitement, the diaper taped securely to her bottom making all sorts of crinkly noises. Using her magic, Twilight pulled a box near the stairs over to them and pulled the top open to reveal its contents.

Jar after jar of foal food lined the smallish box. Twilight had gotten all sorts of flavors, but she'd figured that Dashie would like the apple kind the best, so that was the one that she had stocked up on the most. Picking up the right jar, she used her magic to unscrew the cap and grabbed a plastic spoon from the box. Once she's had her fill, we'll talk about this and figure it all out... Twilight thought to herself as she pulled Dashie up against her side, holding her close with a wing. She was still waking up, so before she really started thinking about solutions to their problem, she just wanted to get the basics out of the way and play along with Dashie's fantasy for just a little bit more. Besides, what could go wrong?

Dipping the spoon inside the small jar of foal food, Twilight brought the spoon down to Dashie's mouth and said, "Open up, Dashie! Here comes the choo-choo train!" Dashie opened her mouth like a good foal and wrapped her lips around the spoon, then swallowed the sweet-tasting mush. She snuggled closer to Twilight and opened her mouth just like a baby bird would, silently asking for more. Twilight smiled and dipped the spoon back in the jar, then kept repeating the process until the jar was empty.

"There we go..." Twilight cooed as Dashie licked the spoon clean. She set both it and the empty jar aside, and just as she was about to stand up to go make some coffee for herself, she heard Dashie's stomach grumble again. Twilight was sure that Dashie couldn't be hungry anymore; the jar of foal food was definitely big enough to fill her stomach. Wondering what could be wrong, she leaned down and patted Dashie's back. "Hey, you feel okay?" she asked.

Dashie closed her eyes and shook her head, letting out a small whimper. Her stomach felt really unsettled, and before she knew what was happening, she felt the food she just ate come back up her throat. Surprised, she opened her eyes and tried to fight it back down, but it was to no avail. Not even a moment later, she threw up, her vomit getting all over the cushions they were on.

"Dashie! Aw... there, there..." Twilight said softly, rubbing Dashie's back with a reassuring wing. This is bad... really bad. If Dashie can't eat foal food, then it's probably safe to assume that she won't be able to eat real food... Twilight thought, biting her lower lip. If my breast milk is the only stuff that she can keep down, then... oh boy. If she keeps drinking from me, she's going to remain incontinent! She watched Dashie dry heave a couple of times before she settled back down against her side, tears streaming down her face. Well, I guess this can just be a short term solution...

"Feel better?" Twilight asked, using her magic to clean up her foal's vomit. Dashie nodded back silently as she used a hoof to wipe the tears from her eyes. "You want some of my milk instead? I'm sure it'll make your sick wittle tummy feel all better! Here, let me help you..." Twilight shifted and lay on her right side, stretching herself out. She lifted her left hind leg, presenting her bountiful orbs to her foal. She felt Dashie turn around and crawl closer to her orbs, then a moment later, she felt a small pair of lips latch onto one of her teats. Dashie started sucking, slowly but surely drinking her milk. As Dashie drank away, Twilight sighed happily, for the painful pressure she was feeling in her crotchboobs was starting to dissipate. A few minutes passed before Dashie switched to her other teat, taking about the same amount of time to drain that one.

When she was done, Dashie sat back and smacked her lips, her tummy full with her mama's warm milk. Thankfully, she didn't throw that up, proving that the only thing that she could consume was Twilight's milk, a fact that both worried her and sent shivers of excitement down her spine. Only really young foals were supposed to have breast milk, but she knew she wasn't that young. She'd have to be only a month or two old for that, but she was at least a year or two old, based on her size.

After letting Dashie have her fill, they had both gone upstairs so that Twilight could make her coffee. Once she had a nice hot mug of it in her grasp, she sat down at the kitchen table, placing her foal right in front of her on the table.

"Okay Dashie, the way I see it, there's only one way to determine if you're really a foal, and not just foal-sized," Twilight said after taking a few sips from her mug. "I'm going to cast the spell to reveal your cutie mark, and if it doesn't come back, then you are truly a foal." When Dashie nodded back in understanding, Twilight closed her eyes, lit her horn, and cast the spell. Unsure of what she should expect, when the spell was complete, she opened her eyes and looked at Dashie's flank.

Her flank was still blank.

"Huh... well, I guess that proves that," Twilight said, letting her shoulders slump as she thought. Taking another sip from her mug, she started coming up with solutions. "So listen, Dashie, we need to figure out what to do here, alright?" Dashie nodded back. "Okay, the way I see it, we have a couple of options here... One, you stay here with me while I try to reverse what happened to you, but that could take weeks, maybe even a month or two! I can't risk performing an age spell on you, mainly because I don't want to interfere with whatever magic has made you into a foal. I'll naturally take care of you as if you were my own of course, but most of my time would be spent researching. All of our friends and probably most of the ponies in town would find out sooner or later that you like this sort of thing, and I'm sure you wouldn't want everypony to find out, right? Or there's another option..." she trailed off as she pondered whether or not to bring it up.

"Oh what, mama?" Dashie asked, cocking her head to the side.

"Or... we could go on a little vacation, just the two of us. I know Princess Celestia said that I could come back anytime that I want if I wanted to have a little time off, so she's always kept my old tower ready for whenever I may need it. If we go, Princess Celestia would be able to help me turn you back into a mare a lot quicker than if I tried to do it on my own, and I think that'd be better for just her to know than the entire town knowing about our little secret, you know?" she asked, wondering which option Dashie would choose. "I'd be able to buy you all sorts of foalish things while we're up there, including diapers that actually fit you, cute little outfits that we can dress you up in, stuff like that. We'd be able to spend a lot more time together, and we can do all sorts of fun things a mother and her foal would do that we wouldn't be able to do here in Ponyville." Twilight finished off her coffee. "So... what do you think?"

"Dat one, dat one!" Dashie cried out. "I wanna go to Canterwot!" Truth be told, she thought it would be a wonderful idea to go up to a city where not a whole lot of ponies would recognize her. And on top of that, she was more than excited to hear that Twilight was going to take care of her in every way, just like if she was her own foal. That idea alone sent another shiver of excitement down her spine, making her jump up and down out of giddiness. In her excitement, she suddenly felt her diaper grow warm, making her pause. She looked down as she felt her diaper swell up in between her legs, the thick diaper pushing her hind legs further apart ever so slightly. "Uh... mama?" she asked sheepishly, pointing towards her diaper with a hoof.

"Aw, did my wittle Dashie have a wittle accident?" Twilight asked, giving her foal a small, loving nuzzle on her cheek. Dashie nodded back and reached towards her, letting off a soft whimper. "Come, let's get you changed, then we can make plans for our little vacation!"