Fluttershy's twin sister

Just a normal day in ponyville.

"oh where's Angel?" sighed Fluttershy. all day she had been feeding and caring for her animals. 2 had gotten sick overnight so there was extra work to take in. "Angel!?" Fluttershy called, looking for her pet bunny. suddenly there was a small squeak coming from the couch. Fluttershy flew over and eyed under it. there was Angel. "There you are Angel! its time for your lunch" said Fluttershy. Angel frowned and stormed into the kitchen. before fluttershy could turn around, there was a knock at the door. "i wonder who that could be" she thought, trotting over.

Fluttershy opened the door and saw Cheesesticks the Mailpony. she was surprised. normally he would just put her letters in the letterbox. "oh hello Cheesesticks" fluttershy beamed. "hey Miss shy! sorry to bother you, i just got an important letter from canterlot for you heheh" Cheesesticks grinned. "from canterlot?" fluttershy replied. "yea! don't know who it's from though, here you go!" answered Cheesesticks, giving fluttershy a light pink envelope with a decorative border that looked quite expensive. "oh thank you" she smiled, walking inside and closing the door behind her. 

Fluttershy was really confused and shocked. she had never gotten a letter from canterlot before, she hadn't even seen an envelope like this! she turned it around in her hoof but to her surprise there was no writing on it except for her address. at first she was scared to open it but after some long thinking she teared it open slowly and took out a sheet of paper. on it was a short amount of writing.

what the letter says:

Dear Fluttershy,

it is my dearest pleasure to invite you to my house to speak for a few days. you may be thinking that you don't even know me, but i know you and that is all you need to know. my address is 32 Rosegolden street near the canterlot castles. please come at once or i will need to come to you.

sincerely, Misty.

by the time fluttershy read it all she was shaking. "who is this? how do they know me?! will they come to me?!" her mind was whizzing and her first decision was to go to twilight sparkle's castle and ask for a meeting with all her friends.

AT TWILIGHT's CASTLE:

"thank you all for coming" fluttershy said, looking over at her friends sitting in their own thrones. "what did you want to talk about darling? it must be urgent because you wanted us all here in a hurry" rarity asked. "yea! i was practicing my flying for the upcoming wonderbolts show!" rainbow dash protested. "Rainbow! ain't need ta' act so rude to poor flutters over here, she's probably got sometin' inportant ta say!" applejack scolded. "oh y-you don't have to stay, g-go practise for your show .. its fine" fluttershy whispered. "fine i'll stay .. for fluttershy" rainbow dash said. "now go on fluttershy, sorry we're all interrupting you" coaxed twilight. "I'M NOT INTERRUPTING!" pinkie pie blurted out, her face stuffed with cupcake batter and icing. "Let the girl speak Pinkie, and don't talk whilst you're eating" rarity snorted, flicking a speck of cupcake off her shoulder. fluttershy started to speak again until spike burst into the room suddenly. everyone jumped in surprise causing rarity to mess up a scarf she was knitting. "Spike! you can't just come in here so loudly!" twilight ranted. "exactly spike, now my scarf i was knitting is ruined!" rarity wailed. "oh no sorry rarity! let me help you! spike gasped, rushing over to help his beloved pony crush. "girls lets talk no-" fluttershy was interrupted again by applejack's loud voice. "Why would ya even be knittin' a scarf at a meetin?!" she retorted. they were suddenly surprised with loud snoring. everyone turned over to rainbow dash to see her slumped over sleeping on her throne. "oh great now she's sleeping!" rarity remarked. "let's all quiet down now" said twilight. but she was barely heard over rainbow dash's snoring. fluttershy was trying desperately to speak but everypony was hollering and arguing. enough was enough. fluttershy leaped up and yelled "LET ME SPEAK!" everypony went quiet and stared at fluttershy. she blushed and sat back down in her throne. "a-anyway, i wanted you all here so i could talk about this letter i got...