Momlestia comes to the rescue

Rainbow Dash was relaxing late one evening, resting in her bedroom. The Best Young Flyers Competition and its aftermath had taken a lot out of her. But suddenly the daredevil mare stood up, hearing a knock at the door. She was quite surprised, not expecting any visitors as she was rather tired from her performance. Still, she slowly opened the door and saw to her amazement Princess Celestia herself standing there, looking over her with a motherly smile on her face. “Hello Rainbow Dash.”

The blue coated mare stammered. “P-P-Princess Celestia?! W-what are you doing here?”

The princess held up a paper bag of what had to be fast food. “I just wanted to say congratulations for winning the Best Young Flyers Competition, so I thought I’d get you some dinner. I bet you haven't eaten all day since you were so nervous."

Rainbow Dash’s stomach growled as she sniffed the air and recognized the smell of hay burgers and hay fries. “Oh, well I am rather hungry...guess you can come inside and we'll eat the food together if you want.”

The princess followed Rainbow Dash into her house and sat down at Rainbow’s table across from her. The daredevil was surprised to see that her meal was a “foal’s meal” complete with a tofu burger, some slices of apples, and an apple juice box plus a toy inside (it was a figure of a pegasus with a black and silver striped mane and tail, a golden brown coat and dark gold eyes). She had this explorer’s outfit with a whip in her mouth, wings fully spread out and looking as if she was going to pounce on another pony. As she pressed the back of her and the mare’s eyes lit up and the wings flapped.

“I feel kind of silly having a foal’s meal, but at least the toy is cool.” Rainbow commented.

The princess explained. "Well it had the healthiest menu items. I think apple slices are much better than hay fries."

"Hey, I got nothing against apples! Besides, tofu burgers are the best!" Rainbow shouted as she dove into her meal.

Celestia sat across from the hungry pegasus and ate her tofu burger silently as she watched the daredevil snack away. She sipped her juice box like a foal and Celestia couldn’t help but laugh.

Rainbow blushed as she sat down afterward. “Thanks,” She then continued to finish her food and then turned to the princess of the sun. “Thanks for the meal...that foal's meal actually was perfect.

"I'm glad you enjoyed it." The princess of the sun responded with a blush on her cheeks. She noticed that as she took a napkin and with her magic she gently wiped Rainbow Dash’s face as the mare squirmed about. “Hey, stop that!”

“Aww, you're just so cute when you get pouty.” Celestia cooed as she wiped Rainbow’s face with a napkin.

Rainbow quickly grew flustered as she snapped. “Stop that! You’re not my mom!” She then flew up into the air and the mare squeaked as she felt the sudden urge to pee. She began to kick about shouting. “And now I need to pee!”

Before Rainbow could do anything, Celestia took the mare’s hoof and led her through the halls, the daredevil’s eyes went wide not really knowing what was going to happen next as she was led to the bathroom and onto the toilet as though she were a toddler.

The daredevil was completely baffled and squeaked. “What’s going on here?! I know where the bathroom in my own house is.”

The princess blushed and replied. “Sorry...I...well...my motherly instincts took over.”

Rainbow was going to ask what the princess meant, but the pegasus' face turned pink and she squeaked as she started tinkling into the toilet.

The princess then walked out of the bathroom and let Rainbow have her privacy and waited patiently as the self conscious daredevil slowly walked out.

Rainbow was quite curious about the princess’s odd behavior and asked. “So, I guess you know what happened to me right after the competition, like right after I flew off with the Wonderbolts?"

Princess Celestia was quite embarrassed as she responded. “Yes, I saw you had a bit of an accident after the Best Young Flyers Competition. You strained yourself quite hard to pull off that Sonic Rainboom, and it would seem now you’re starting to have accidents when you fly if you’re not careful.”

The brash mare got extremely nervous and shouted. “You didn’t tell anypony about it, right?! I’m so glad the Wonderbolts didn’t notice.”

“Of course not, I would never tell ponies such embarrassing secrets,” Celestia responded with a reassuring tone. The princess then looked down. "Though I must ask, you did go to the hospital to get checked out, right?"

Rainbow rolled her eyes, feeling patronized as she snapped. "Of course I did! Nurse Redheart looked over me. And the Rainboom did mess up my bladder control a bit, that's all. It’s only gonna be temporary, as long as I don’t do a Rainboom again."

Celestia turned her head feeling a bit ashamed of prying. "I apologize I was just concerned about you is all."

Rainbow sighed, brushing her mane back. “No, it’s fine, I get it. I need to take better care of myself so stuff like this doesn’t happen," The two mares then stood there in the hallway, unsure of what to say to each other before the embarrassed daredevil mumbled. "Ok..well...um...this is awkward…but what now? Like, how can I even do my job cloudbusting without making it rain pee on ponies? I would never live that kind of humiliation down."

Celestia couldn't help but giggle as she explained. “It's alright, Rainbow. I know this may sound weird, but I have something that just might help you with your… situation.”

She took out a bag and produced a package of pull-ups. They were Wonderbolt themed and were clearly made for adults given their size.

Rainbow stepped back and shouted. “What?! I'm not wearing those even if they’re styled after the Wonderbolts! I'm not a foal who can’t keep her bedsheets dry!”

Celestia bent down to Rainbow Dash’s level and explained. “I know, but look...these are pull-ups, not diapers. They’re quite thin, meaning you can also wear a flight suit so that way nopony would know you’re in padding, and you’ll be protected at the same time.”

Rainbow was stunned at how well Celestia thought this through as she responded. “It’s not a bad idea...though being in a pull-up...I’m still not sure. I’ve never worn clothing on the job before, it’s gonna look suspicious.”

“Well, at least try it on for me. At least you should wear one at night before bed until your issue can be fixed.” Celestia instructed before she took a pull-up out of the packaging and slowly unfurled it. She then pulled it over the mare’s rump, making sure the elastic padding was snug.

The daredevil walked around to break into her padding, admiring the little lightning bolts on the seat as she commented. “Wow, these aren’t that bad, actually. And they're not that foalish either.”

The princess of the sun watched and snickered. “Yeah...and do you want to see the new flight suit I got for you to go with them?”

“Yeah, that would be so awesome!” Rainbow cheered, getting excited. “If it looks cool enough nopony will think anything of me wearing it!”

The princess replied by lighting up her horn, showing Rainbow a bright blue flight suit with rainbow colored bolts. “I couldn't get you a Wonderbolt themed one, so I got this instead.”

Rainbow snickered as she dressed herself into the flight suit and struck some poses in a mirror as she gave a smirk. “Not bad! It's actually rather awesome looking,” She waddled about the hallway heading into her living room. She stood in front of a mirror admiring how she looked in it. When she couldn't see any trace of the padding around her rump, she chirped. “Wow, I can barely feel it, and the pull-up is completely invisible!"

The princess nodded. "That's right, I even enchanted them so they won't make any noise. They’re completely undetectable to the naked eye."

Rainbow squealed in delight, hugging Celestia around her neck while shouting! "Thank you! Now I don’t feel so bad about my issue."

The princess dawed at seeing how cute Rainbow was being, seeming to be interested in this foal treatment more and more, so the princess decided to ask the question she wanted to ask all evening. “Rainbow, how about I treat you like a toddler tonight, just for fun?”

Rainbow blushed and gulped, unsure of the request. She secretly felt rather interested in the idea. And when the princess had gone out of her way to give Rainbow some very useful items to cope with her embarrassing problem, Rainbow felt she owed the mare. So she bent her head down and whispered, “Ok, sure, just for tonight.”

The princess instantly scooped Rainbow Dash and held her close into a loving embrace as she sat down into a soft, plush chair. Rainbow snuggled into Celestia’s lap, feeling safe and warm in the princess’s embrace. Celestia then took out a story book labeled Daring Do’s Adventure Collection.

Rainbow took out the toy she got from her meal and whispered. “So this toy is from a book?”

Celestia nodded and continued. “That's right, she’s a great hero who hunts for ancient artifacts to keep them out of evil hooves.”

The mare’s eyes went wide as the princess began to read the adventures of Daring Do. The cyan coated mare got quite immersed in the story, and as such she didn’t notice as Celestia had a sippy cup full of cider plopped in her mouth. Rainbow suckled, drinking up cider almost non-stop and seemed completely engaged in the story until it stopped and she whined. “But I wanted to see it finish!”

Celestia dawed as she nuzzled her new charge. “You are so cute, but it’s very late. Tell you what, I'll leave the book here and you can read it whenever you want.”

"Ugh! I'm not a egghead!" Rainbow whined with a cute pout even though she planned on continuing reading the book when Celestia was gone.

"Oh stop, everypony loves books, even athletes like you. Now come on, it’s time for bed." The princess gave Rainbow's rump a light pat as she was led to the bathroom where Celestia brushed Rainbow's teeth just like a mother would with their foals. The daredevil endured the most embarrassing teeth brushing she’d had since leaving her parents.

Then the princess took off Rainbow's flight suit and pulled down her pull-ups making the mare's face turn red as she was plopped onto a blue plastic potty that seemed to have come out of nowhere. The princess took out a timer and cooed. "Now, you have to stay there for five minutes. If you have to do anything just do it."

Rainbow kicked about with her pull-ups now down to her hooves as she whined. "I'm not a bedwetter. Celestia! I know I said you can treat me like a toddler, but this is way too much!"

The princess, however, was in full mother mode and simply popped a pacifier into her charge’s mouth. "Now now, no whining. You stay there like a good little filly until you’re done."

Rainbow groaned but sat there, seeing that there was no way she was going to win an argument with a motherly crazed princess. She bobbed the pacifier up and down as Celestia then walked out of the bathroom and waited until she heard a tinkling hitting plastic. She then knocked on the door. "Rainbow, are you finished?"

"Yeah, I’m done!" The pegasus snapped.

Celestia cooed. "Ok, dump the contents in the big potty and then flush like a good little filly."

Rainbow grumbled but did as she was told, dumping her pee in the "big potty" and flushing it. She then waddled out the door after washing up, (with her pull-ups still between her hooves) and raised her front hooves as she proclaimed sarcastically. "Yay, I did it!"

The princess smirked as she lit her horn and Rainbow now squeaked as the pull-ups were pulled back over her rump.

"Hey! I told you I'm not a bed weter I don't need protection at night!" Rainbow whined anew.

Celestia just bent down to Rainbow Dash's level and cooed. "But you said I can treat you like a toddler, and toddlers can't know that for sure."

The pegasus rolled her eyes. At the very least though, nopony could see her, and the pull-ups did feel snug around her rump as she reluctantly followed Celestia.

As Rainbow entered her room she turned to see the princess posting a calendar with cute rainbows and smiling clouds printed on it near her bed. The princess then explained. “We're going to track your accidents while flying. It's Wonderbolt designed, so if you have an accident, post an angry Spitfire sticker with a lightning bolt. And if you have no accidents, place a happy Spitfire sticker with a rainbow arched over her."

Rainbow snickered seeing the silly stickers and wondering if Spitfire had to pose for pictures for them. She then paused and responded. "So...basically I can track my progress and see if I have less accidents over time?"

Celestia gave a nod. "That's right. And if you need help remembering to go potty, I got something for that too," She gave Rainbow a watch and explained. "With this you can set an alarm and every hour Spitfire will ask ‘Hey sport, you need to go?!’"

Rainbow’s cheeks flushed red. "I...I don't know...I mean, this is all so childish."

"Yes, but there's a reason these things exist,” Celestia cooed. “And you obviously don't want to be having accidents every time you fly, right?" The princess responded in a bit of a patronizing tone.

Rainbow gave a nod and responded. "No yo...you’re right...Nurse Redheart said this should go away soon as long as I train my bladder when to go."

The princess ruffled Rainbow's mane. "Don't be embarrassed, nopony will ever know about this except for those you trust." Rainbow felt a bit reassured as Celestia then placed her in bed, plopping a Spitfire and Soarin plush in both hooves and a pacifier with the Wonderbolt design printed on the mouth guard into Rainbow’s mouth and cooed. “Alright, do you need anything else?”

Rainbow shook her head, too embarrassed to say anything as it reminded her too much of how her parents had treated her when she was actually a toddler.

Then Twilight’s voice blared over a nearby baby monitor. “Hey, Princess Celestia, I uh... need a diaper change...”

Rainbow couldn't believe what she just heard and burst into laughter! Celestia just snickered as she picked up the baby monitor. “Ok, I’ll be right over to change your soggy pampers, Twilight. But first, do you want to talk to Rainbow Dash? I was just visiting her.”

The unicorn squeaked through the baby monitor, realizing she’d just unknowingly told Rainbow Dash she was wearing diapers and had had an accident!

Rainbow took the device from Celestia and whispered. “Twilight, you're actually wearing diapers?”

The mare sighed as she mumbled. “Y-yes. I’ve been... wetting the bed at night since we defeated Nightmare Moon. Apparently it’s a curse of some sort.”

Rainbow Dash did her best to stifle her chuckles before responding. “Ok, well...um to make you feel better, I started having accidents after I performed that Sonic Rainboom. Don't worry, I went to Nurse Redheart and she said the effect on my body was minimal, and as long as I train my bladder I'll be back to normal soon."

“Oh, wow! Is that why Celestia is over there to baby you?” Twilight responded, sounding quite surprised.

“She‘s not babying me, she’s toddlering me! I'm in pull-ups!” Rainbow snapped back.

Twilight and Celestia suddenly burst into laughter as Rainbow clamped up realizing how silly that was. Twilight then asked. “So..um...will you wear them to the gala?”

Rainbow paused, realizing this little problem would ruin any chances of impressing the Wonderbolts as she whispered. “I don’t think i’ll go…”

Twilight paused before responding. “You can still impress the Wonderbolts in pull-ups, just hide them under one of your flight suits and they’ll never know.”

Rainbow kicked about and whined. “But what about if I have an accident?!”

Celestia blushed as she turned around and whispered. “I can change you into new pull-ups if you want after you perform in front of them. It would be discreet and nopony would know."

Rainbow couldn't help but feel strangely relieved about Celestia wanting to change her. But the idea of her being in pull-ups at a party full of ponies plus her idols was way too much embarrassment for her to handle as she explained to Twilight. “But that’s still so embarrassing! I’ll be the only one at that whole party wearing padding.”

Twilight gulped as she explained. “Actually, most of our other friends and I have agreed to wear diapers to the gala.”

Rainbow blinked looking completely baffled and asked. “Wow, really?! Even Rarity?”

“Yeah! Can you believe it? Though I doubt she'll actually use hers.” Twilight snickered.

Rainbow burst into laughter as Celestia took the baby monitor and cooed, “Alright, Twilight, let Rainbow get some sleep. I'll be over to change your pampers in a bit. Don't get jealous just because I'm babying her first, or letting her use the potty. We can work on training your bladder soon.”

"Ok, Celestia, I'll be patient. And I'm not jealous! I could totally train myself, I just need to remember where the potty training books are kept!" Twilight snapped back before clicking her baby monitor off.

Celestia chuckled then turned to Rainbow and gave her a kiss on the forehead. “Goodnight Dashie. Don’t forget to set your alarm so you can go potty. Just be careful with the big potty, okay.” She then placed the package of adult sized pull-ups near Rainbow’s bedroom door before shutting the lights off and closing it slowly behnd her.

Rainbow Dash gasped seeing her room lit up with Wonderbolt glow in the dark stickers! It was amazing and it made her feel at.ease as she snuggled under her sheets and suckled on her pacifier, letting it bob up and down. She felt so relaxed after a long day of flying. Maybe she would ask Celestia to treat her like a toddler again some day.