Chapter 1 - Adopted Starlight

Starlight arrived at the castle after playing in the snow with Rainbow Dash.

"Phew...that was fun." Starlight said. "I never knew a snowball fight could be so...fun..." She added.

"Yeah. And if you ask me, we both won." Rainbow Dash said, smiling.

"Huh?" Starlight was confused.

"It was good hanging out with you today. I'll admit, I've been nervous about this whole 'letting you hang with all of us' thing Twilight told you to do this winter, but I think I've gotten over it." Rainbow Dash said.

"Still hung up on all that past stuff huh? Look, I've apologized for it already. Like, seventy times over." Starlight said.

"More like seventy-five, but your right." Rainbow Dash said. "I think it's time for me to let bygones be bygones..." She said and put her hoof out. "Let's both be better friends from now on, deal?" Rainbow Dash said.

"Deal!" Starlight bumped hooves with Rainbow Dash before closing the door and hanging her snow gear up. She then went to find Twilight in the Map room.

"Oh Starlight!" Twilight said, smiling as she saw her student enter the map room. "Did you have fun with Rainbow Dash?" Twilight asked.

"Yes. A lot of fun, actually." Starlight said. "I can see why you hold your friends in such high regard. All whose left to hang with is Applejack and Pinkie Pie." She said. Twilight blinked.

"Wait...you've spent time with everyone else?" Twilight asked, unsure.

"Let me recap the past day and a half for you: I started by helping Fluttershy get her animals ready for winter hibernation, then I helped Rarity out with some designs she could give out to the people from that village I helped form, and I just got done with Rainbow Dash. I thought you might want to go last." Starlight said.

"Actually...I can't be last. Not for another couple of days." Twilight said.

"Why's that?" Starlight said.

"Applejack took off with her family so that they could spend Hearth's Warming eve with Pinkie's family." Twilight said.

"Oh. Well I guess I can spend time with you next. Why are the apples going to Pinkie's rock farm for Hearth's Warming anyways?" Starlight asked.

"Well back when the Golden Oak Library existed, I once did some genealogy research for each of my friends. For the most part, nothing surprised me." Twilight said.

"Genealogy? Isn't that basically familial study and research?" Starlight asked. Twilight nodded.

"Things got interesting when I started digging into both Pinkie Pie and Applejack. The more I dug up on one, the more I would find out about the other. Eventually, I found out that the two are cousins. Very distant cousins, but cousins none the less." Twilight said.

"Wait, so their related?!" Starlight exclaimed.

"Yep. Sure their just cousins, but ever since then, Pinkie Pie and Applejack have taken their friendship with one another to a whole another level." Twilight said.

"So this is them attempting to make some connections huh?" Starlight said. To which Twilight nodded. This gave Starlight an idea. "Hey Twilight, I think I'm going to do some Genealogy research of my own. I'll let you know if I find out anything interesting." She said. She then took out a locket and trotted off.

"I wonder who she could be related to. Well, I really hope it's nothing as crazy as Pinkie Pie. Then again, what could top that?" Twilight asked. Suddenly she felt a shiver down her spine. "...Why does it suddenly feel like I've just tempted fate?" Twilight Asked.

"Not even one percent..." Starlight said. She had just did testing to compare her DNA to that of her mothers, which she had a spare lock of mane of. "But that can't be right..." Starlight asked. She then decided to call her dad. "Hey dad it's me. Yes I'm still alive. No, I'm not bad anymore, honest. Listen dad, your still my dad right? Then did you cheat on my mom?" Starlight asked. "...What do you mean why do I ask? I just tested my DNA to that of my mom's and it's not even a one percent probility. In fact, it's zero. So I have to know, who is my mother?" Starlight asked. "...Why are you so instant I know who it is? Okay then, how can she be my mother if..." Starlight stopped her self. "...Nothing dad. Goodbye. Love you..." She said and hung up. "...I'm adopted..." Starlight said. She went to find her teacher right away.

"ADOPTED?!" Rainbow Dash exclaimed after Twilight told her, Fluttershy, and Rarity.

"It's the only explanation. My dad was very insistent that my mother was who she was. And if he's so certain that the mare I know as my mother is my mother, then that only can mean that I'm not the biological daughter of the two ponies I know as my parents." Starlight said.

"Well even if you are adopted, I think it was kind of those two ponies to raise you as if you were their own." Flutttershy said.

"You know something...your right." Starlight said with a smile. "It was nice of them. Still, it makes me wonder who my real parents are." Starlight said.

"I hope you find out who and tell us darling. I would love to make you a little necklace to celebrate." Rarity said.

"Of course you would..." Rainbow Dash said.

"Now Rainbow please be nice. This is already potentially life changing for me as it is." Starlight said. "Still, I'm hoping that no matter who my parents are, it changes nothing about out friendship." She said.

"It won't. No way am I about to let who you were born to effect how I feel about you." Rainbow Dash said. "It'll be your parents I'll be more pissed at." She added.

"Gee, that's a one eighty." Starlight said.

"Element of Loyalty, remember?" Rainbow Dash said with a smirk. "And your biological parents obviously weren't loyal to you." She pointed out.

"I'm sure they must have had SOME reason for it. Let's not rush to judgement now." Twilight said.

"Twilight's right. Maybe I was born into a family who already was struggling to get by; or had so many kids that they couldn't afford to raise another one; or they maybe they were just too young to legally keep me." Starlight said. "The explanation could literally be anything." She added. Everyone looked at her. "...What? Was it something I said?" Starlight asked.

"You know...for a moment there, you sounded just like Twilight." Spike said, speaking up for the first time.

"Yeah. It was so weird. And the way you went about saying it was totally something Twilight would do too." Rainbow Dash said.

"Not to mention just how many different very reasonable explanations you gave us just now. It's not unlike something Twilight would do." Fluttershy said.

"I think what we mean to say Starlight Darling...is that if we didn't know better, we'd swear you were Twilight's sister or something." Rarity said.

"What?! Me? The sister of my own Teacher?!" Starlight exclaimed. "That's a stretch if I've ever heard one!" She said and left the room.

"Girls please..." Twilight said. "I could just very easily be rubbing off on Starlight. Or any number of specific reasons. I'd list them all right now, in fact..." Twilight suddenly stopped herself and went wide eyed. "...Oh sweet Luna, please don't let that be the case..." She said. "Could my student...really be my sister?" Twilight asked.

"If she is, that's one Tartarus of a thing for Applejack to miss out on." Rainbow Dash said.

"Knowing Pinkie Pie, she'll probably throw a party over it..." Rarity mentioned.

"If nothing else, I'm sure everyone will support the two of you." Fluttershy said.

"Even if I'm secretly praying that Starlgiht is not my sister?" Twilight asked. Her friends nodded. "I was a afraid of that...I guess time will only tell though." Twilight said.

Author's Notes:

What is with me making Rainbow Dash exclaim stuff? I first do it in "Reign of Shadows" and now I do it here. What is wrong with me?!

Chapter 2 - The Discovery

"Thank you girls so much for wanting to help." Starlight said to the Cutie Mark Crusaders who were joined by Diamond Tiara and Silver Spoon.

"Think nothing of it. Plus, maybe if we know who your biological parents are, we can figure out what your cutie mark is meant to represent." Scootaloo said.

"Yeah. It'd help us out with future cutie mark problems." Sweetie Belle said.

"Which will make us better at the whole thing that we're still new to." Apple Bloom said.

"I'll admit, the whole concept of family is something that interests me too. Me and Silver Spoon are working on a paper that we're calling 'friends VS. Family'." Diamond Tiara said.

"And this could help us out with some of the details." Silver Spoon said. "Plus any excuse to hang out with the CMC now that we're all friends is good enough for me." She added with a smile.

"I was just doing some super advanced magic when I got my cutie mark. Nothing all that special. Though I do know that the magic I cast when I got my cutie mark was something I shouldn't have been able to cast for the age I was. I was only about your age when I cast that spell." Starlight said.

"Huh...that's anti-climatic." Scootaloo said. "Twilight's cutie mark is about magic too." She added.

"But isn't hers also a representation on how she and her friends are all connected by Rainbow Dash's first sonic rainboom?" Daimond Tiara asked.

"Now that you mention it, yeah. That is a thing. Plus the fact that she became a princess." Sweetie Belle said.

"Wow Diamond Tiara...you may only be hanging out with us from time to time, but it's like your already getting the hang of this sort of thing." Apple Bloom said.

"Admittedly that was very thought provoking." Silver Spoon said.

"Hey, what can I say? You girls rubbed off on me in a good way." Diamond Tiara said, smiling. "Plus, we're connected in a way too. It was my troubles and woes that led the three of you to obtaining your cutie marks. So in a way, we're just like Twilight and her friends: All connected by an event in our youth that's brought us all together." Diamond Tiara Explained.

"Geez...your on a roll huh?" Scootaloo said.

"Can we all focus please?" Starlight said, changing books.

"Sorry Starlight Glimmer..." All five fillies said at once.

"It's okay. We can have history lesson another..." Starlight suddenly gasped as she spoke upon reading the book she had.

"What? What is it?" Sweetie belle asked.

"Did you find somethin' that can help us narrow our search?" Apple Bloom asked.

"Something like that. Apparently, there are DNA tests to help you find a familial match within equestria." Starlight said.

"Isn't that basically a cheat?" Silver Spoon asked. "Because it sounds like a cheat to me." She added.

"Is it really cheating though? I mean, this isn't like some school test or anything like that." Daimond Tiara said.

"I guess your right..." Silver Spoon said.

"Then let's perform it right now!" Starlight said, excited. She could hardly wait. She hasn't been this excited since she reuninited with Sunburst. She got to work on prepping the test right away.

"Gee, someone's getting excited over the littlest thing..." Scootaloo said as Starlight eagerly made sure everything was in place for the test to go right.

"Yeah...it reminds me of Twilight." Sweetie Belle said. Starlight stopped moving and looked at Sweetie Belle.

"Oh not you girls too." Starlight said.

"I...beg your pardon?" Diamond Tiara asked, confused.

"First the friends of Twilight that are still here think I remind them of Twilight, and now you five." Starlight added.

"Well it's true. You are acting a lot like Twilight does when she gets the way your gettin'." Apple Bloom said.

"Very similar. It's almost like your sisters." Silver Spoon said.

"Oh please..." Starlight said as she started the test up. "There is no possible way..." The test was going as Starlight talked. "Not even in a million years is there a way..." She said as the test was about to come up with the result. "That I could possibly be the sister..." And then the test results came back. And what she saw made her faint. "...The sister...of Twilight...Sparkle..." Staright finished.

"Huh?" Apple Bloom said before grabbing the results from Starlight. She screamed alongside her friends when she saw the result of the test. This prompted Twilight to burst through the door.

"Girls, why are you screaming?!" Twilight asked.

"Princess...it's...about you..." Diamond Tiara said as best she could.

"Me?" Twilight took the results. "...Oh...oh my..." Twilight said.

"Congradulations...I guess..." Silver Spoon said.

"Did you even perfom the test correctly?" Twiight asked Starlight.

"To the letter..." Starlight said.

"And how accurate is this?" Twilight said. Starlight pointed to the bottom. "ONE HUNDRED PERCENT PROBABILITY?!" Twilight shouted in the royal voice. "...And now it's my turn..." She said before she fainted.

"...In hindsight, we should've looked at Starlight's cutie mark closer..." Diamond Tiara said.

"Let me guess, you think it means she's Twilight's little sister." Apple Bloom said.

"Considering their two years apart...yes." Diamond Tiara said.

"Why did you have to drop that bombshell on everyone?" Scootaloo said, noticing the other guests were there, heard what Diamond Tiara just said, and now fainted as well.

"...Oh boy, this is going to be one very long off-screen explination..." Diamond Tiara said.

"Screen? What Screen?" Silver Spoon asked.

Author's Notes:

Yeah I just broke the fourth wall for a joke.

Chapter 3 - Suddenly Sisters

Author's Notes:

Title Drop already and it's not even the final chapter either.

It's been a couple of days since Starlight made a huge discovery. One two ponies who weren't there for when it happen would soon find out...

"Slow Down Pinkie..." Applejack said following her shuddering and bouncy friend. "Your saying that there's a doozy at Twilight's Castle?" She asked.

"Yep. My Pinkie sense has never steered me wrong. Plus, my party senses have been going off like crazy since two days ago." Pinkie Pie said. "So whatever the doozy is, it has to be connected to my party senses as both my Pinkie Sense and my party senses are going off at the same time. That's never happened before." Pinkie said as they arrived at Twilight's Castle.

"Woo boy...I bet we missed a battle or something..." Applejack said as they headed for the Map Room.

"Could even be that we might be going on a friendship mission. Two cousins on a friendship mission...that's gotta be a first." Pinkie Pie said. Applejack opened the map room doors, finding a pacing twilight, all their friends, and the CMC with their friends.

"Oh finally." Diamond Tiara said. "And what's with Pinkie Pie?" She asked.

"I think her Pinkie Sense is acting up. judging from the shaking she's doing, I'd say she's sensing a doozy." Rainbow Dash said.

"Gee, talk about a two day delay. We've already experinced the doozy I think she's been predictining..." Silver Spoon said.

"So ah was right...we missed some huge battle." Applejack said.

"Nope. No battles to be had. Unless you want to count Twilight battling against her own mind." Scootaloo said.

"Ditto." Sweetie Belle said.

"Yeah. That's really the only battle we've had for the past two days..." Rarity said.

"I'm still sensing a doozy. And it's only getting bigger..." Pinkie Pie said.

"Oh boy...should you just tell them, Starlight?" Apple Bloom said to a worried looking Starlight Glimmer.

"What's going on Starlight? Did Trixie do something bad?" Applejack asked.

"No! But I'd honestly prefer that over this!" Starlight said. "Especially over this..." She added with a sigh.

"Just tell them, Starlight." Fluttershy said. "Better to get it out of the way now before Pinkie starts going crazy." She added, pointing at a very jittery Pinkie Pie.

"...Twilight...mind helping me out?" Starlight asked her teacher.

"Fine...I could use a break from figuring out how I'm going to approuch my parents about what we've learnt." Twlight said.

"Wait...are you dating Starlight?!" Pinkie Pie exclaimed.

"What? No!" Both Starlight and Twilight said at once.

"Not only is there no romance connection going on between us..." Twilight said.

"But it'd be super icky and wierd and very very taboo." Starlight said.

"Um...come again? Taboo?" Applejack said. "Also, if I didn't know any better, for a moment, it was like the two of you were sisters." She said.

"Oh boy...that joke has run it's course now that fate's been tempted enough with that..." Starlight said. "Fine. So first off, I tested my DNA against my mothers to see where I came from as the whole thing with you and Pinkie Pie being related got me curious to see if I have some long lost cousin out there; one I wouldn't mind seeking out and connecting with. However, turns out, I'm not related to the mare that raised me as her daughter at all. In fact, there's a zero percent chance we're even related." She said. Pinkkie was still vibrating.

"Oh boy...the doozie's just starting...I can feel it..." Pinkie Pie said.

"So Starlight here dsecided to call her dad and he was insistent that he and his late wife both loved each other very much and were the parents she known them for." Twilight said.

"You didn't think to run your dad's DNA after?" Applejack asked.

"Well knowing what we know now, there's a mute point. I guarantee you, it'll also come out to be a zero percent probability. Because believe it or not...I'm adopted." Starlight said. That made Pinkie do the thing where she expands a bunch but was still jittery.

"Well that was quite the doozy but...my pinkie sense is telling me there's an even bigger doozie to come." Pinkie Said.

"Seriously? Just what could possibly top that?" Applejack said.

"Your going to regret asking that." Rarity said.

"Yeah...trust me." Twilight said.

"So I found this complicated test that would give you your closest familial match within equestrian boarders. I folllowed it to the letter and the result...pratically made everyone who wasn't the kids faint upon hearing it." Starlight said.

"So? What is it? What was so big that it would cause that kind of reaction?" Applejack asked.

"Me and Twilight...well..." Starlight gulped. "...Turns out...we're biological sisters..." She added. That made Pinkie Pie do her exploding and then faint alongside Applejack. Pinkie had stopped jittering.

"...And that I'm betting was the Doozy..." Twilight said.

"That...was the mother of all Doozies..." Pinkie Pie said.

"So...let me get this straight...this entire time that Starlight's been learning about friendship from us...she's been Twilight's sister?!" Applejack exclaimed.

"We are. I'm her little sister. Two years younger, in fact." Starlight said. "So...surprise?" She asked, nerviously.

"...It's times like this I hate being the element of honesty..." Applejack said.

"So...Starlight finding out she's Twilight's Sister..." Pinkie Pie said before suddenly getting her party cannon out. "...It's why my party senses have been going off like crazy for two days straight! Same with my Pinkie sense." She said.

"Uh oh..." Starlight knew what Pinkie Pie was gonna do. And she was right: Pinkie Pie fired her cannon and decorations went everywhere. There was even a banner that said "finding your family party" on it. Twilight face hoofed.

"I swear I'll never comprehend Pinkie Pie." Twilight said.

"Let me guess: You tried studding her Pinkie sense." Starlight said.

"Yep. How'd you guess?" Twilight asked.

"Sounds like something you'd do, big sis." Starlight said. "I guess I've just gotten to know you that well." She added.

"Yeah. And that's not a bad thing, little sis." Twilight said.

"Still, what are we going to tell your parents? Let alone Shining Armor!" Starlight said.

"Oh boy...I didn't even consider my BBBFF..." Twilight said and began pacing again.

"...And there she goes again, way to go Starlight..." Rainbow Dash said.

"To be honest...I'm half tempted to join her..." Starlight said.

"Yep...they are totally sisters..." Applejack said. "So when you mentioned that saying that you were sisters was an old joke..." She started.

"Yeah. First the girls who were here tempted that fate, then the CMC, and then you. The joke has officially run it's course." Starlight said.

"Oh yeah. You have to be Twilight's sister. That is very much something Twilight would say." Pinkie Pie said.

"And here I was ready to give a stern talking to to Starlight's Parents. Then I find out their Twilight's Parents." Rainbow Dash said.

"It's already bad enough that I wish me and Twilight knew what to say to help my biological family stomach this..." Starlight said.

"Oh boy..." Applejack said. This was going to be a long winter...

Chapter 4 - Telling others

"So you don't care that I'm Twilight's little sister..." Starlight said, as she and Twilight told Trixie about the whole sister thing.

"Please Starlight...it'd take a lot more then you being Twilight's little sister for Trixie to disown you as her friend." Trixie said.

"Just don't start going around bragging about it. I'd rather not have a repeat of what happened the last time you were here." Starlight said.

"Trixie has learnt her lesson on that little factoid. Still, I suppose it makes sense in the end. I always found you to be more of a mini-twilight as you've helped me with my magic." Trixie said. "Only now does Trixie understand why she felt like calling you 'mini-twilight' feels like her complimenting her friend." She added.

"Who knows Trixie..." Twilight said as Spike brought in some tea. "If Starlight teaches you enough magic, you might become the most powerful stage magician in existence." She said.

"Really Twilight? You really think Trixie could reach that level?" Trixie asked.

"I wouldn't say it if I didn't think it was true." Twilight said.

"That..." Trixie had to stop her self from crying. "...That actually means more to me then you think it does, Twilight. Thank you. And...sorry for everything." She added.

"I've already forgiven you. Everyone does. Even my little sister." Twilight said.

"Even so...I still wanted to say it so you know that I meant it." Trixie said. Starlight smiled.

"I think that means more to Twilight then you think, Trixie." Starlight said.

"It does." Twilight said, smiling.

"Jeez...you two really are sisters..." Trixie said. "Now that I see you two together like this, it only made sense for why for brief moments before Trixie found out about your sister hood, Trixie felt like you two were already sisters." She added.

"Oh come on!" Starlight suddenly exclaimed. "Not you too! The joke is over now, stupid hand of fate." She added.

"Ugh...tell me about it. It's starting to get annoying." Twilight said.

"...Trixie missed a lot huh?" Trixie asked.

"Oh you have no idea...you wanna hear what led up to me finding out that I was Twilight's Biological Sister?" Starlight asked.

"Oh this Trixie HAS to hear." Trixie said, smiling.

"...That's a lot to unpack, Twi." Shining Armor said. "...Still...I'm worried how mom and dad will take this." He added.

"Trust me...we're both worried..." Starlight said. "Though if you don't mind big brother, we'd like you to be there with Candence when we tell our parents about this whole mess. Might might things go easier." She explained.

"Yep...your one hundred percent my little sister. Same need to plan as Twilight. Must run in the mares because mom liked to plan a lot too before she had Twilight." Shining Armor said.

"Guess dad doesn't do a lot of planning if ever." Starlight said.

"You know it. Though your not over zelous like Twilight and mom are." Shining said.

"Guess I must get that from my adopted parents. They might have reeled that in." Starlight said.

"By the way, I do want to meet the parents that did adopt you." Shining Armor said.

"My adoptive father won't be much of an issue." Starlight said before taking out a necklace with a pciture of a mare on it with a single mane strand attached. "...My adoptive mother on the other hand...She's in a better place now." Starlight mentioned.

"Oh...what happened?" Shining Armor asked.

"Bug bear attack the day after my 10th birthday party." Starlight said. "I was born the day before what was to be mothers day 14 years ago." Starlight said. "My fifteenth birthday is coming up, and every two years my birthday is always the day before mother's day. it was the same that year too." She added.

"That's harsh." Shining Armor said.

"Don't remind me." Starlight said.

"If there's any consolation in all this...you'll be able to spend mother's day with your biological mother this year." Shining Armor said.

"I don't know if that's much of a consolation..." Starlight said. "Twilight Velvet has not been a part of my life for nearly 15 years. I don't know if I'm ready to consider her like I do the mare that raised me like I was her own." She said.

"One thing at a time Star..." Shining Amor said. "One thing at a time." He added.

Sunburst pushed up his glasses after a long silence.

"...Your actually related to one another?" Sunburst asked.

"How are you the most calm so far?" Starlight asked.

"Well I've honestly never really known Princess Twilight." Sunburst said.

"You can just call her Twilight. She's your friend as much as she is mine." Starlight said.

"Feels disrespectful..." Sunburst said.

"I don't mind." Twilight said.

"Seriously, I was expecting you to have a billion questions." Starlight said.

"Same old Starlight. You always expect to have answer a bunch of questions." Sunburst said with a smile. "But hey, the way I see it, you've already been through enough finding out your related to; of all ponies; a princess! And being her biological sister at that!" Sunburst said.

"That's nice of you, Sunburst." Starlight said with a smile.

"Hey, what are friends for right?" Sunburst said. Starlight couldn't help but agree with that. Sure she and sunburst had lost touch, but now it's like nothing could ever separate them again.

"...Please don't make me do that dance every time we meet." Starlight said. She had to guess Cadence would make her do the dance her sister-in-law and biological sister do every time they meet.

"Sorry. I'm just so excited to have another sister in law. And Flurry Heart gets to have another aunt." Cadence said. Suddenly Starlight fainted.

"Oh right...Starlight and I completely forgot about the fact that being my biological sister makes her just as much of Flurry Heart's aunt as me." Twilight said.

"Oh boy...I had a feeling there was SOMETHING that I was forgetting. I guess now I realize what that was." Starlight said. "Hey, at least Flurry Heart will have two super cool aunts to play with." Starlight said, smiling.

"Well that didn't last long!" Twilight said.

"Hey, if it keeps the baby Alicorn under wraps, then we won't have a repeat of the Crystal Heart happening." Starlight said.

"I guess your right." Twilight said.

"Huh...it it just me, or has the strength of your bound been increasing the more and more you open up to your relationship as not just teacher and student, but also as sisters?" Cadence said.

"Huh...maybe it has." Starlight said.

"it's something to think about." Twilight said. "I'll have to write this down. If I get another student like Starlight and Sunset, this could make for an interesting friendship lesson for them." She added, smiling before leaving.

"And the more things change..." Cadence said.

"The more they stay the same..." Starlight agreed.

Chapter 5 - Bonding with Friends

"So Twilight is still figuring things out for when you tell your parents huh?" Applejack said.

"Yeah. That's going to be a thing still. To be honest, I'm more then happy not confronting them if only because I'd rather not stir up any drama with my sister's family." Starlight said as she helped Applejack; Rainbow Dash was there too.

"I suppose in the end it does make sense for you two to be sisters. I mean, you were able to remove cutie marks and travel through time. I know you don't like being reminded of that stuff, but that kind of stuff takes extreme skill in magic. And Twilight's already pretty powerful." Rainbow Dash said.

"I guess that's a good point. Especially with how many times she fought with me to stop me from continuing to change history." Starlight said. "We were pretty evenly matched." She added.

"Twilight's an Alicorn and you were evenly matched? You sure she wasn't holding back?" Applejack said.

"Maybe the first few times, but I think after a while, she started getting more serious about stopping me." Starlight said. "However, I think she was getting to the point where she realized that simply trying to overpower me wasn't working so she tried something different. Of course I didn't believe what I saw, and when I showed her what occurred that was motivating me to do what I was doing I guess she saw that what I really needed was to try and learn to make friends the way she made them with you." Starlight said.

"Hey, our differences is what's helped us beat bad guys so many times." Rainbow Dash said. "Sure there are times we fight with one another, but we always managed to move past it." She added.

"I guess working out your differences must be a part of being friends." Starlight said, smiling as the trio finished up. "At the very least, I'm glad I have you girls and my sister to support me through this whole process." Starlight said.

"Don't forget Trixie too. Ever since you became friends with her, she seems to have cleaned up her whole act." Applejack said.

"You do realize what you see when she does her shows is just a persona right?" Starlight asked. This caused Applejack to blink.

"It is?" Applejack asked.

"Geez, apparently you didn't." Starlight said.

"Now I sort of feel bad for when we got on her case about the whole thing. If we knew it was just a façade we would've been nicer to her." Rainbow Dash said.

"She acts that way to get people to challenge her. You two and Rarity took things a bit too far when you got Twilight involved." Starlight said.

"To say nothing of the Ursa Minor." Applejack said.

"That wasn't her fault and you know it wasn't. I ain't gonna defend her against the Alicorn Amulet thing though; that I made sure she knew was a bad thing." Starlight said.

"We can't one hundred percent hold that one against her after we found out what it was doing to her." Rainbow Dash said.

"Still, she should've tried a different approach then resorting to a magical artifact." Starlight said. "Maybe after a few weeks, I can get her to approach all of you in a more civilized manner." She suggested.

"That would be nice. Your really starting to take after Twilight, sugarcube." Applejack said.

"I guess the friendship lessons Twilight was giving me before we found out we were sisters have helped." Starlight said.

"Which means she's been doing a good job." Rainbow Dash said. "Not that I ever doubted her." She added.

"And yet me being Twilight's sister hasn't changed how you all act around me. Your all still hanging out with me as if the whole fact that I'm Twilight's little sister doesn't exist." Starlight said.

"It's like we told you Starlight: Friendship is easy once you actually put forth effort to make friends." Applejack said.

"Yeah. I guess your right. All that's missing now is my own seat in the map room." Starlight said.

"We could ask Rarity to make one." Rainbow Dash suggested.

"Don't you think that'd be insulting to the tree of harmony?" Starlight asked.

"Geez...and now you've pulled another Twilight..." Applejack said.

"Huh?" Starlight was confused.

"What Applejack is saying is that you asked something Twilight would've asked. You two are starting to be more and more alike the longer this goes on." Rainbow Dash said.

"Hey, Twilight never did anything evil like I did. She may have told me about that whole one time she actually did a bad thing, but that's nothing compared to what I've done." Starlight said.

"Yeah...I guess your right." Applejack said. "Your personalities may blend together from time to time, but your still your own pony." She said.

"That's deep Applejack. Really deep." Starlight said.

"Also, if you weren't already found out to be sisters, I'd swear you were acting like one." Rainbow Dash said.

"OH COME ON!" Starlight yelled out.

Author's Notes:

Yep, I'm not going to go a full chapter without making that joke.

Chapter 6 - Telling Canterlot

"Run this by me again..." Starlight said as she and Twilight approached canterlot castle. "Why are we telling the princesses about me being you-know-what before your parents?" Starlight asked.

"Because Celestia is the one who mentored me, and she deserves to know just as much as my parents do." Twilight said. She and Starlight weren't going to say anything about their relationship until they explained the whole thing to Celestia. "I just hope she takes it well." Twilight said.

"Hey, it's not like I've done anything wrong this time." Starlight said.

"True. I suppose the worst that could happen is she faints." Twilight said.

"I thought the whole similarity thing was just a coincidence; it was like you were acting like her sister as it was." Celestia said.

"OH COME ON, WHOSE NEXT?!" Starlight exclaimed. They had just told Celestia and Luna about Starlight being Twilight's biological sister. "I wish this joke would just die in a fire already." Starlight said.

"You've been getting that a lot, haven't you?" Luna asked.

"Like you wouldn't believe at this point." Twilight said.

"Then perhaps it only goes to show that you two being biological sisters was the conclusion the test would come up with." Celestia said.

"I guess you have a point. I just wish just once...just one day...just one day I can get by without people making the joke that I was already acting like Twilight's sister before we found out we were actually sisters." Starlight said.

"Ease your mind, Starlight." Luna said. "You will will need calm when the two of you tell your parents about this." She said.

"That's something I'm not looking forward to. Like at all." Starlight said. "I'd rather not mess up Twilight's relationship with her parents." She said.

"Your words only prove how accurate the test is, Starlight." Celestia said. "As it shows that you are indeed related to both Twilight and Shining Armor. Worrying about your family is something that seems common place in your biological family." She explained.

"This is going a lot smoother then I thought it would in my head." Starlight said.

"What did you expect to happen? We know of what you did, do not forget that. But Twilight has sought to teach you proper friendship. If it were up to me and my sister, you would be banished, or thrown into a dungeon, or banished and then thrown into a dungeon in the place that we banish you to." Luna said.

"...You just wanted to say that once, didn't you?" Starlight asked. Luna chuckled.

"We cannot help it. We feel as if it would've been wrong not to say it for some odd reason." Luna said. Twilight rolled her eyes.

"At least the two of you have a sense of humor." Twilight said.

"Still, you would be punished for your crimes if Twilight hadn't have made you her student. And despite your newfound sisterhood, I doubt her teaching you about Friendship will change much, if at all." Celestia said.

"I guess your right. I still need to learn a lot about friendship. And I guess family now too." Starlight said.

"I can only hope things go this well with our parents." Twilight said.

"Perhaps we could accompany you?" Celstia suggested.

"Nah. Shining Armor and Princess Cadence are already going to be there. Any more, and I think our parents would need a bigger house." Twilight said.

"We might need a pillow in case the two of them faint." Starlight said.

"Then we are going to need a bigger pillow then the ones my parents have." Twilight said. Starlight laughed.

"...I think we broke her..." Starlight said as she and Twilgiht sat across from a shocked Moondancer.

"Sorry it's just..." Moondancer collected her thoughts. "I know we promised to stay up to date with each other but this...this is something I didn't expect." She added.

"Hey to be fair, I don't think either me or Twilght expected it either." Starlight said.

"It did cause a shock between me and my ponyville friends. You should come visit us down there sometime, Moondancer." Twilight said.

"You'd...actually be okay with me visiting?" Moondancer asked.

"I'd always be okay with it." Twilight said.

"And who knows? You might like it so much you'd want to move there." Starlight said.

"You mean like Twilight basically did?" Moondancer asked.

"It's just a thought..." Starlight said.

"Geez...if you weren't biological sisters, I swear you two were being surrogate sisters." Moondancer said.

"OH COME ON!" Starlight exclaimed.

Author's Notes:

The joke was made twice in one chapter. Why? You'll find out next chapter.

Chapter 7 - Sudden Family

Starlight followed Twilight Sparkle, Shining Armor, and Princess Cadence to the house where the parents of Twilight Sparkle and Shining armor lived.

Starlight gulped. One correction: The parents of Twilight Sparkle, Shining Armor, and Starlight Glimmer.

"Is it...normal for me to be nervous about meeting my biological parents?" Starlight asked.

"I suppose I would be too in your hoofprints, Starlight." Twilight said.

"But no matter what, I want an explanation." Shining Armor said. He knocked on the door.

"No turning back." Cadence said.

"Right..." Starlight said. Twilight Velvet and Night Light answered the door.

"Oh! Twilight and Shining...what brings you to Canterlot?" Twilight Velvet said.

"I do." Starlight said. "...Hello mother and father..." Starlight said.

"St-starlight?!" Night Light said.

"WAIT YOU KNEW?!" Twilight asked.

"We...may need to tell you what happened..." Twilight Velvet said.

"So Starlight before we tell you why we had to put you up for adoption...we need to know how this all came about." Twilight Velvet said.

"It's not that long of a story, actually..." Starlight said. "I asked Twilight about why one of her friends and the family they had were visiting another family for hearth's warming. Something about the two friends being cousins or something. Anyways, it got me into wanting to map out my own family tree, see if there's any distant relatives I might not know of that I would love to connect with. So I ran my DNA against my adopted mother's." Starlight explained. "The test came back with a zero percent chance of relation so I called my adopted father and he was so sure about never cheating on his wife that it just clicked for me that I had to be adopted." She continued.

"You didn't call your adoptive mother instead?" Night Light asked. "She's the one that was there for the paper work to adopt you before you were even born." He added.

"...We'll get back to that statement. To answer your question, I couldn't talk to my adopted mother about it because she was killed in a bug bear attack when I was ten." Starlight said.

"Oh how horrible! Your adopted mother was such a nice mare; she did not deserve to be killed by such a beast!" Twilight Velvet said.

"...Yeah...she was nice. So anyways I decided to do a test to see if there was someone within the boundaries of Equestria who I could be related to. The result of which lead me to finding out that the princess of friendship and your daughter, Twilight Sparkle, is my biological sister." Starlight said.

"Um...question: Wouldn't the test also tell you that your Shining's Sister as well?" Night Light said.

"The Crystal Empire is not fully Equestrian Territory. It was removed from being considered part of Equestria once Sombra enslaved it one thousand years ago." Shining Armor said. "So trust me, I made sure to check. If the test is for Equestria specifically, then it would only single out Twilight. But there's no doubt in my mind that she's my biological sister as well. You haven't seen how similar she is to Twilight." He explained.

"At least you didn't say a different thing." Starlight said.

"Yeah. I think it's gotten old too." Shining Said.

"Well to be honest, the moment I knew I was pregnant with a third child not even two years after Twilight was born...I knew we just would not be able to handle another child." Twilight Velvet said. "But thankfully, we met your adopted mother when she arrived in Canterlot for a business deal that went wrong shortly before we met her. Believe it or not, but the mare who adopted you was sterile. As in she would never be able to have kids of her own. And we were essentially her saving grace." She added.

"Of all the explanations...you had me adopted by a mare who would never be able to have her own biological child." Starlight said.

"When you say it like that, you don't get the full story..." Night Light said.

"...Before we talked about this, I was half-ready to never accept either of you as being part of my life." Starlight said. "But now I hear how much you were caring for someone besides yourselves and I no longer know what to decide..." She added.

"Just take it one step at a time Starlight." Twilight Velvet said. "We may not be able to make up for the time we missed, but we would love to consider you a part of the family at least." She added. Starlight smiled.

"Well my biological siblings have already accepted me as part of your family so...I suppose if your willing to try, we can make this work." Starlight said.

"That's good." Night Light said.

"So...is it too soon to talk about potential love interests with you, Starlight?" Twilight Velvet asked.

"MOM!" Twilight, Starlight, AND Shining Armor all yelled out at once.

Author's Notes:

Yep. This is why. No joke here. Just a family wholesome chapter.

Chapter 8 - Moving Ahead

Starlight and Twilight finally arrived back at the Castle of Friendship.

"What a wild ride this has been." Starlight said.

"Yeah. That's kind of the norm it seems with me and my friends." Twilight said.

"Sounds like I'll have to get used to it." Starlight said as they entered the castle and then the map room only to get surprise partied.

"SURPRISE! WELCOME TO SISTERHOOD STARLGIHT GLIMMER!" Pinkie Pie shouted. Maud Pie was there with her, as was Applejack with Apple Bloom, Rarity with Sweetie Belle, and Rainbow Dash with Scootaloo.

"Of course Pinkie Pie would have a party ready for us when we returned." Twilgiht said. But she noticed no one else was there. "Hey, where's the rest of the girls?" She asked.

"Pinkie Pie made it clear this was a party only for those with sisters." Maud Pie said.

"And I totally let Rainbow Dash bring along Scootaloo even though their just sarrogate sisters." Pinkie Pie said.

"That's my sister for you." Maud Pie said.

"Good to see you too Maud." Starlight said to her.

"Wait, you two know each other?" Pinkie Pie asked.

"We met a bit after I made friends with Trixie. I never got the chance to bring it up with Twilgiht." Starlight said.

"You made another friend so quickly after Trixie?!" Twilight exclaimed before stopping her self from crying. "So proud..." She said.

"I'm surprised your not making a big deal out of it like you did Trixie." Starlight said.

"Hey, I said I wouldn't judge you for the friends you make from now on." Twilgiht said. "And I meant it." She added.

"Thanks big sis." Starlight said, smiling.

"Even if I don't like parties as much as my sister, I wanted to attend this one because it was a party for sisters." Maud said. The rest of the guests started gathering around Starlight.

"It'll take some gettin' used to treating you like Twilight's sister." Applejack said.

"Especially given everything." Rainbow Dash said.

"But I think we can all put forth the effort." Scootaloo said.

"Especially because now you and Twilight can join in the Sisterhooves Social if ya all want." Apple Bloom said.

"Right. I forgot that was a thing." Twilight said.

The party went on for four hours straight. Eventually the party started to wind down.

"Hey Starlight, can I be honest with you for a second?" Pinkie Pie asked.

"That's Applejack's thing, but go ahead anyways." Starlight said.

"You were already acting a lot like Twilight's sister before you found out you were here actual biological sister." Pinkie Pie said.

"OH COME ON!" Starlight yelled out in frustration.

"Sorry, I wanted to get that in one last time before the main story closed." Pinkie Pie said. Starlight blinked.

"What main story?" Starlight asked.

Author's Notes:

Short chapter, but that's only because it's the last proper chapter before we get a time skip. Also yeah, I had Pinkie Pie break the fourth wall at the end there.

Epilogue: Sudden Sequel Hook

Author's Notes:

Unlike the rest of the story, this epilogue takes place shortly after the season 7 premier episode. The rest of Season 7 past that hasn't happened in this version of events.

"Phew...that was a rush..." Starlight said. "Never knew the Sisterhooves social could be so exhilarting." She added.

"I still don't know how you two eggheads beat everyone. Including the now former champs!" Rainbow Dash said.

"Yeah. We've all been praticing all year." Scootaloo said.

"And even with Applejack and Rainbow Dash competing with each other most of the time..." Apple Bloom said.

"Ya still managed to get first place. FIRST PLACE." Applejack said.

"I normally would not get upset over something so trivial but...even I'm a little peeved that I lost to the two of you." Rarity said.

"Yeah." Sweetie Belle said. The group soon left the area to get cleaned up.

Starlight was currently sitting in a chair she found in storage in the map room. It's not like the thrones for Twilight and her friends, but she did with what she could do. She put it close to Twilight's throne of course. She even had similar chairs to her own set up for the CMC. Twilight soon entered.

"That was one wild rush." Twilight said. "I'm glad you decided to stick around. It was a lot of fun running the Sisterhood Social with you, little sis." She said.

"I can say the same thing, big sis." Starlight said.

"Wanna hear something funny Starlight?" Twilight asked.

"Go right ahead." Starlight said.

"I like everyone else thought you were acting just a little too much like my sister before we found out we were actually sisters." Twilight said.

"OH COME ON! I THOUGHT WE WERE OVER THIS ALREADY?!" Starlight exclaimed. Twilight started laughing. This made Starlight lose her anger and start laughing with her sister. "You totally said that just to say it once, didn't you Twilight?" Starlight asked.

"I'm sorry, I couldn't help it." Twilight said, smiling.

"Well since your the only person who hasn't said it at this point...I suppose all's fair." Starlight said, smiling back.

"Wait you had a feeling Starlight was Twilight's biological sister the whole time?!" Apple Bloom said. She, the CMC, Diamond Tiara, and Silver Spoon were at the CMC clubhouse.

"Between her mannerism and similar cutie mark, it just all fit." Diamond Tiara said.

"Unbelievable. And because we lost the sisterhooves social to them, then as per our agreement, you and Silver Sppon get to pick what we do next." Scootaloo said.

"Don't worry, I already have something in mind." Diamond Tiara said.

"Are you going to make us wear ridiculous costumes for a day?" Sweetie Belle asked.

"Nah. Diamond Tiara's got something a little different in mind." Silver Spoon said.

"This whole family thing with Starlight got me thinking about how well we know our own family trees. So I say we do our own research into our own families see if we can't find realtives we don't know about." Diamond Tiara said.

"But what the hay are the chances another bombshell like Starlight's will happen again?" Apple Bloom asked.

"Never tempt fate Apple Bloom..." Diamond Tiara said. "Never tempt fate..." She repeated.