Regression.

Later that night, Twilight laid on her new pillow. Bandaged wrapped around her head as she thought of Rainbow's last adult words. She didn't even know the extent of her regression or how old the now filly was but something was just keeping her from sleeping. She decided to sit up and pretty much stay awake till dawn, thinking about her regressed friend.

Morning came and Dr Stable came into the room to see his patient wide awake, but with bags under her eyes. It was clear to him that she hadn't slept the night before. Twilight looked at him for a moment before uttering four words. ''Let me see her.''

''Her?'' He asked, though it was a obvious question.

''Rainbow.....how is she?''

''...Well, she just woke up and well, we'll let you see for yourself. Come along.''

He ushered her over and the mare followed him, concerned written on her now pale features. What did he mean by 'you'll see for yourself'. It better not mean anything bad. All she knew was that Rainbow had been regressed physically but she was expecting what she saw when she walked into a room marked 'Filly beds'.

She saw the rainbow maned filly playing patty cakes with another filly, who was slightly older and a unicorn. ''Pat-ta-cake, pat-ta-cake, bawer's stalwion. Bake me a cake as fast as woo can. Pat it and shape it and mark it with "B", and bake it in the oven for baby and me. Pat-ta-cake, pat-ta-cake, baker's man. Bake me a cake as fast as you can; roww it up, roww it up; and thwow it in a pan! Pat-ta-cake, pat-ta-cake, baker's stallion.''

Twilight was shocked at the amount of times the mare-turned-filly used baby talk. Had she been regressed to the state of a very young filly but with the body of a 8 year old? She couldn't believe her magic had not own regressed Rainbow's physically age but also her mental age, it was unbelievable. The mare looked down and muttered, under her breath. ''I'm sorry...Dashie....''

''You see now, Princess. She's looks like a normal 8 year old and acts like one too. But her mental state of being, for her speech and even to a extend her walking capability is very limited. If I was to guess it, I would say her mental age would be about 2 years old which would explain why she can speak nearly perfectly but with her errors.''

Twilight frowned. ''Can I go speak to her?''

''Sure, but have yet to find out if she's lost her memories as well.'' said Dr Stable, as the mare walked forward.

Twilight looked down at her rainbow maned friend, who just looked up at her with curious eyes. ''Hey, Rainbow. I'm your friend, Twilight. Is this your new friend?''

Twilight, however, wasn't expecting the reply she got. Rainbow replied with. ''Yeah. Wainwoo's friend, Mommy.''

The other filly frowned a little, she had heard some of the filly's foalish speeches but it still was awkward. She decided to introduce herself to Rainbow's 'mother'. ''....Um, so your Rainbow's mom....Am I right?....''

''Um...that's a long story, but you might as well introduce yourself...''

''Okay, I'm Love May....'' said the small unicorn filly.

''Hello, Love. Thanks for befriending Rainbow, I'm glad she has somepony here for her....'' said Twilight, with a smile before she muttered to herself. ''After what's she been through.''

''Mommy, mommy! When do wee goo howe?'' said Rainbow, butting into the conversation with her babyish words.

''Soon, sweetie...'' mumbled Twilight, trying to keeping herself calm about the filly calling her 'mommy'. ''Dr Stable, when is visiting hour? I want to know when my friends can come.''

''Hmm, in about a hour but I can make a exception because it's a unusually case and they'll be curious.''

''It's alright, I want to be alone with Rainbow for a bit. If they can, then tell them they can come through, but don't get them for no reason. I'd rather stick to the law involving visiting hours.''

''As you wish, princess.''

''Prinwess?'' asked Rainbow. ''Mommy's prinwess?''

''That's right, Dashie. I'm a princess.'' said Twilight, with a smile.

''Mommy, where pa-ma?''

''Pa-ma....'' muttered Twilight, hating to think that Rainbow's mind had chosen at random who her 'father' was. But the 'ma' bit confused her, a mare? She thought back to the previous night, now she pretty much knew. ''I believe she'll be here soon, sweetie. Take a nap for a bit. Love, can you go back to your own bed and wait for your parents.''

''Okay.'' said the unicorn filly, as she wondered off.

''...But I wanna see pa-ma...'' cried Rainbow.

''Shh, you will. How about you dream about her until visiting hour?''

''...Okay, mommy.'' said Rainbow, sadly as she curled up in her blanket.

Twilight sighed and tucked the small filly in. The filly giggled a little and then waited for something. Twilight blushed a little and kissed her 'daughter's' forehead. ''Sleep tight, my little Dashie.''

The filly was soon fast asleep. Dr Stable came closer and whispered. ''I hate to interrupt this cute scene but I need to check on your wounds.''

''Sure....''

An hour passed and visiting hour started. Twilight was sitting next to the still sleeping filly Rainbow Dash, smiling a little as she waited for her friends to arrive. Glancing at the clock, she estimated out loud. ''Right about now...''

''DASHIE!'' came a shout, as the door burst open to reveal Pinkie Pie. The mare looked dishleved with her straight mane and tail and darker tones, but the happiness that spread in her voice made it seem that she was forcing herself to be happy when in fact she wasn't. Then again who could be happy when their best friend gets regressed. Twilight knew that first-hoof.

Rainbow and all the other fillies instantly woke up, crying. Twilight glared at Pinkie. ''Hospitals are meant to be quiet, you woke her up.'' She turned to Rainbow and hugged her gently, rocking the small filly back and forth. ''Shh, it's alright, sweetie. Big old Pinkie didn't mean to scare you, she just wanted to make you happy.''

''Happe?'' asked Rainbow.

The other members of the mane six walked in, frowning at Pinkie's entrance. Applejack was the first of them to speak. ''I'll calm down the foals, I know a thing or two to settle them.'' And with that said, she went off to calm them down.

Rarity was the second to speak as she walked closer to Twilight, who was still hugging Rainbow. ''Isn't she the cutest little darling? I still can't believe this happened until I saw her. Flutters told us all about the incident, Twilight. We were so worried when she said that you had been bleeding and Rainbow had been regressed in age.''

''....She's telling the truth....'' mumbled Fluttershy, who came over and rubbed Rainbow's prismatic mane. However, none of them was expecting Rainbow's next sudden outburst.

''Pa-ma, woo came!'' cried Rainbow, as she hugged Fluttershy, who was shocked. ''Pa-ma, woo okay?''

''Yeah...I'm fine, sweetie....'' mumbled Fluttershy, as she tried her best to calm down and actually managed to keep calmer then Twilight, who was freaking. The pair then awkwardly looked at each other for answers. ''...Let me guess, she's calling you 'mommy'....right?''

''Yep...''

Rarity, Pinkie and Applejack, who had just calm down the youngest of the foals, looked at them with confusion. Pinkie was the one to ask to question. ''But...isn't Rainbow a 8 year old filly, why is she talking like a foal and why is she referring to Twily and Flutters as her parents?''

''Pinkie...um...she's may look 8 but she has the estimated mind of a 2 year old. As for why she refers to me and Fluttershy as her parents, I have a idea. As for why she calls me mommy, I was the first figure she saw that wasn't a doctor or another filly and so she thought that I was her parent. As for Fluttershy being her pa-ma, as she calls it, probably because Fluttershy was her fillyhood friend, remember? She had nopony in her fillyhood other then Fluttershy and so it's easier for her to remember Fluttershy over the other fillies at flight camp.''

The others nodded. Twilight, herself, even joined in as she looked down at the filly, that continued to sit in Fluttershy's hooves. She couldn't help but think about what was going to happen now. It was so confusing. She looked at Fluttershy for a moment, the pair blushed upon realizing they were Rainbow's parents, so to the small filly's mind they were meant to be in love. It just made the thing ten times more awkward then it already was.