this is a magic mirror who show flutterbat to fluttershy! flutterbat ask to eat! she say can’t hold for long! fluttershy tell her to hold a little long for she need to brush her mane befor to see applejack for pay apple! her friends know of this and she need hold flutterbat on control! but some time let her out her body or more say change place! fluttershy and flutterbat mose live like this for the rest of ther life! fluttershy see her as a little sister who need to learn the world! the first time she get out her friend get fear and try to save her but dont know fluttershy got two soul! her steer is for flutterbat! is discord tell her this but is luna and celestia tell her she got two soul right form twilght! twilight tell all her friends for fluttershy and is take a little time to be ok with it! applejack make some apple ready for fluttershy! her friends learn if flutterbat or fluttershy, the other one will die too! Fluttershy can’t survive if her soul sister die! luna first were she in the dream of fluttershy she form two dream in her! were she tell this to her sister, celestia be not surpire of this! luna ask her and celestia tell 100 years were luna be seal! she meet a real vampire pony but this vampire dont drink blood and she hate be a vampire! she want be a pegasus! to her be a pegasus is be freedom! but her father is the mose powerfull vampire and is him who turn luna to nightmare moon for make etenel night but fail! celestia fight all vampire and kill them but she get capture! the vampire lord prepare a spell to turn celestia as the same evil! but the vampire celestia meet first tell her she the vampire princess but she hate be vampire and she be a real pony! she free celestia for one reason, to make her a pony! celestia tell her this will hard but inpossible but is possible she become one with other pony! vampire princess say she dont care! all she want is never drink blood! celestia ask why she hate to be vampire! and if some vampire pony want be free to? she tell no! all of them are pure evil and are bloody killer! she tell her here is kill or be killed! this live is hell! the reason is her mother is a pegasus and she kind and lovely and she got a big sister and she pegasus but her father kill them right to her eyes to show what is a vampire! and he force her to drink the blood of her big sister and her mother! celestia be sad for her! she ask celestia to kill all vampires all of them! celestia do it and but she not the princess vampire and tell her she her a live for make reborn! and is take 900 years to see if celestia not fail her! luna ask what is the name of this poor vampire? celestia tell her* her name is FLUTTERBAT for the vampire lord family! and she fluttershy little sister on her first live! luna be shock to know one the six element breaner be the dauther of a vampire in her first live! celestia tell her the first live of flutershy be kill with not only with her mother but with her friends and thos friends are the same to day! luna be more shock! celestia tell thos pony if be a life she can save you lulu! and all of them be kill the same day you become nightmare moon! this new be the more shock for luna! celestia tell her the vampire lord fond what the girls be kill them form make you never be save! but thanks flutterbat she fond a way to make sure you be save! this why i give the chance to be with her little with and her friends ones more! but is to bad i fail to give a pony body! but i hope to food this one day! celestia show the original body of flutterbat seal in crystal! this shock luna to see this and ask if she? celestia say no! she only the key to reborn her to the next body life but i want to give her a real but the vampire curse is very hard to become pure! were you are born vampire is inpossible to be pure! but reborn in a pony body is possible! i will try to give a body every time she die! discord try to create a body but vampire pony are inmute to chaos magic! but not alicorn magic! but if try the element or the crystal heart this will bad for her! her body will be destroy and her soul will be seal forever! so i use this way form this! plus i make her drink my blood first! luna be very shock! celestia tell is very save and no need be worry for it! this the only way to fond a way give the perfect reborn! is take 9 try to got this! later twilight and her friends learn the true of flutterbat and the her self! this be very shock but more for fluttershy to know this and is take a weak to she flutterbat ave the litter sister of her! now she very a happy! twilight learn her spell she use onthe vampire fruit bat is only wake up flutterbat! if twilight never use it flutterbat will not reborn and she reborn on the next 100 years later! twilight want fond a way give the next and real live for her! not only as a princess but as a friend! celestia and luna smile! discord too help the best he can! but with his magic he can create a temprery body for her but is only for a month! so every 2 month fluttershy and flutterbat can fly togeter on night sky as sisters and flutterbat can now see the sun with no fear to die be it! and every friends of fluttershy help her to make flutterbat happy but the problemen is for the apples! she to be watch it or she will all of it! flutterbat love black dress make by rarity! flutterbat love the animal too but mosely bats or bunny! but she dont like snike! she love race with rainbow dash! she love party of pinkie pie but call pinkie by her born name! pinkie is ok with it! she love learn with twilight! she love the tea party with discord and she say he funny! this make discord smile! flutterbat dont like trixie or starlight! for personel reason! only twilight and fluttershy know! but flutterbat try to like them but like her big sis say* baby step!* is take one years for pony ville to like flutterbat! but not all pony like her! but the bat pony like her! one of her friend is a bat pony and she a royal maid of twilight! bot do a lot togeter! and this make fluttershy happy to see her happy! but somepony is in love with fluttershy and flutterbat! first he think he can’t take bot! but fond bot live in the same body! he become a bit confuse! but flash sentry tell him all the true! this pony dont care the past of them he want make them a happy! and he take 1 years to fluttershy and flutterbat be in love with him!(lucky guy got two mare!)him is a half-bat and half-pegasus! and his name is night cloud! and he a royal guard and work for luna first and now for twilight! and 2 years later of twilight and flash be married and got a baby alicorn! night cloud ask fluttershy and flutterbat to be his mares! this night flutershy be one body with her sister and learn be ask to married make her happy but she cry for two pony! one of the eyes of fluttershe is now red for flutterbat and is lerf! bot cry for this! and luna make stallion and mares! one years later she got two baby! one is a bat pony boy and one is a pegasus girl!

@Background Pony #796D  
The idea was Fluttershy seeing what she had become and worrying about it coming out again.
 
It’s been done a lot with Luna/Nightmare Moon, (and there’s some incredible art of that), but not so much with Fluttershy/Flutterbat.

I thought vampires couldn’t see themselves in mirrors.