"I need to look at your genitals." Vinyl Scratch just blinked at the purple unicorn at her door. She could hear Octavia coughing on their lunch, having evidently heard Twilights tired and droning command.

"Uh... I don't think either of us is in the mood for that right now..." And it was true. Ms. Sparkle looked like she was running on caffeine and spite, with dark circles under her eyes and a frown deeply set into her expression.

"The hospital gave me a hard time when I asked for copies of Carina's scans, and in the end I couldn't get them without her permission. I couldn't find her so instead I modified a memory viewing spell to refresh my memory of what her genitals were like so I could draw them as best as I can." She held up a picture in her magic to show Vinyl.

"Yeah, that's her vagina alright, but I'm still not hearing a 'why' here babe."

"Hm?" It felt like this was the first time Twilight actually realised she was talking to a stranger, and her eyes immediately turned wide as saucers. "Oh fuck. I'm so sorry! What I mean is- uh, gah-" The professionally rendered Carina diagram disappeared into her saddlebags as she began to run frantically go through them. "Princesses orders! Er, request! Uh..." She seemed to finally find Celestia's letter as she unfurled it for the changeling runaway to see. "...Please?"

"Again, I am so sorry I sprung this on you like that." The three of them (Twilight Sparkle, Vinyl Scratch, and Octavia) were on the way to Golden Oaks library as they spoke. "It's been a rough morning and-"

"Hey, chill. It's okay. No hard feelings." Vinyl had heard about five apologies at this point and she was trying to get out of hearing a sixth.

"I might have hard feelings about this. May I ask why the Princess requested a gynecologic exam for Vinyl?" Octavia had only stopped choking on her food for long enough to get to front door by the time her marefriend had already agreed to it. The lavender librarian took a deep breath, and they knew they were in for a bit of a story.

"Okay, so. Apparently the changeling princess Chrysalis had been running around causing trouble for various towns, sapping them of their energy and even killing one poor stallion pretty early on." That was news to Vinyl. "So Princess Celestia had a group of guards put together to track her down. They used a specialized device, which I cannot wait to get my hooves on, to find any changeling they could one settlement at a time." Hey wait a minute...

"I'm pretty sure I met those guys. They came and found me and Carina with the fancy doo-dad but they said they were just testing it out. Some 'Squeaky Squad' or something was supposed to do the finding for them." Twilight just mouthed the words 'Squeaky Squad' to herself before shaking her head and continuing.

"Well, I don't know about them, but moving on. They found plenty of healthy changelings all over the place but none of them, yourself included, have undergone the same kind of radical transformation Carina and Chrysalis appear to have gone through."

"Right, so the idea is to see if I got the same parts or not. When I saw what Carina turned into, I had just thought it had something to do with the big blue guy she goes to bed with. Or the fact that Tavi doesn't have anything to dick me down with."

"For fucks sake Vinyl-!"

"E-EXCEPT!" Damn, and she thought librarians were supposed to quiet. "Ahem. Except several of the changelings were also female, and the likelihood of them all being lesbians is statistically pretty low."

"Don't you only have like, three stat points to base that off of?"

"Sixty-Six-Point-Six percent of all known changeling females who confirmed their sexual orientations are heterosexual. It's enough for now, and you were the only female changeling the remaining guards remembered the name and location of. So..." Octavia just sighed as they made it to the library's front door at last.

"This is why I don't understand you Vinyl. You are a creature that insists on hiding her whole species from most ponies, but you perform at places like Canterlot, where you stick out like a sore hoof. And are also in the capital of the country."

"They did recognize me by my DJ name..." Twilight opened the door with her magic, but when she turned around to invite them in (like the polite unicorn she is), she spotted something over their shoulders and ended up saying-

"Come on in- Bitch!" Both Octavia and the speaker herself were too busy being stunned by her strong language, but Vinyl was unbothered by it and turned around to see what had earned Twilights ire. It was Carina, making her way over to them on her long (sexy) legs, saddlebags bursting full of canteens and sloshing around with water in them. If she heard what Twilight called her, she didn't show it as she happily trotted over to them.

"Hey girls! What's the the occasion?"

"Twilight wants to touch me in sensitive places." That sounded distinctly like the keratin of a unicorn horn getting slammed against wood.

"Ooh. Cool. Careful though, she tickles."

"I did not choose to stay in Ponyville to become a gynecologist. Princess's request or not, I am not doing this for anypony again." Vinyl tried not to laugh as she laid down on the basement table, though Carina had no such restraint from where she was putting her canteens of water in an ice-box. Octavia just lounged with her eyes closed on a bean bag she stole from upstairs. She did manage to cool her expression as her impromptu doctor made her way over with all the equipment in her magical grip. "Okay. First, how deep is the illusion?"

"It's paper-thin. Only the royalty was taught true transformation." That was a lot of wires, what was all that for?

"Hmm. Well it's probably best if you drop it anyway, at least for the less intrusive stuff." Vinyl thought that was fair enough, so she let her white and blue facade disappear in its typical vortexy fashion. "Thank you. Now, these diodes here will go around your teats. They are designed... to... huh."

"That didn't sound like a good 'huh' Twilight. What you see down there?" Vinyl didn't get an answer as Twilight pulled out a magnifying glass from her pile of tool and lightly pushed her mammaries away from her crotch. "Hey. Twilight. Yoo-hoo, your patient is asking you what you're doing with her."

"Octavia, come here for a moment."

"Oh, sure, let my marefriend in on the secret." Regardless, the gray pony stood up and made her way over to see what Twilight was so focused on.

"Have these marks under her teats always been here?" Marks?

"I... suppose? They are just stretch marks aren't they? She just doesn't have a coat to cover them like most mares when they hit puberty." Uh oh. Carina gave voice to Vinyl's thoughts.

"We don't get stretch marks though. We shed all our old bits off." And then Twilight said something that made Vinyl die a little inside.

"Vinyl also hasn't gone through puberty yet, or she would be growing taller like Carina and-"

"What the fuck do you mean I haven't gone through puberty yet! I'm not some foal!" Because seriously, what the actual hell. "I have sex like, five times a week! That's fucked up!"

"Vinyl!" It was a very red Octavia that covered her yelling lovers muzzle with both hooves. "Now. Twilight. Explain."

"Uh... She is an adult, just... Actually how old are you?"

"She's twenty-six." Octavia didn't release Vinyls mouth to let her answer.

"Okay, see? Adult. She's as big as she's going to get, probably. From I could gather from Carina's test results, changelings who aren't sexually active stay biologically pre-pubescent. The body only begins making changes into puberty once it starts to regularly receive... uh... 'sex signals?' S-so, if that were true, Vinyl should have long since moved on to the next stage. A great many changelings all over Equestria should have. But you haven't..."

"Hence why I am on my back with my legs in the air." Octavia had finally calmed down and released her mouth, but she certainly didn't look happy.

"Y-yes. Um. I think we should move on to the internal scan. Here." Twilight levitated a weird metal rod attached to a wire to Vinyl and Octavia. "Put than in the vaginal canal. In thirty seconds it'll have a picture for us to look at."

"... Does it vibrate?" Octavia just groaned into the air at her marefriends words. "What? It should at least be fun right?"

I barely got my eyes open before Carina threw herself over my stomach and screamed into the bedsheets.

"... Fun day?"

"No. It was very not fun. My mom is a grade-A bitch."

"...And? What does she have to do with you picking up cold water?" Her speech was muffled by the mattress but I could hear her all the same.

"I got lots of water, but it was all warm as tartarus so I stopped by Twilights to borrow her fridge for awhile. Turns out, Vinyl was there because the Princesses wanted to have scans of a non-metamorphosized changelings cooch to try to figure out why me and and my asshole sister are the only ones who got bigger."

"Oh no. She found something didn't she?"

"Yeah. She found a series of blocks of some kind surgically implanted around where Vinyl would have grown all the fancy stuff like fallopian tubes by now had they not been in the way." What. The. Fuck.

"No way. There is no way your mom can do that to every one of her children. How would she find the time?"

"I don't knooooooow... I don't caaaaaaaare... Ugh. She probably has some my siblings do it for her and they just don't know what for. Or maybe they do. Chrysalis probably isn't the only other one in the family who would kick babies."

"Damn. Thats..." I didn't have words. "Is there anything Twilight can do?"

"Maybe. I didn't stick around for long after that. Spike got a letter for us though before I left. Galactic Dick-Head got her. Chrysalis is currently on the way to the Canterlot dungeons until whatever he did to her wears off. They couldn't levitate her or do any magic at all, so they would have to cart her all the way out of the country to get her to the hive right now."

"... I want to say that's good news, but it doesn't really make you happy does it?"

"...No..." I pulled out my hands from under her barrel and started to run them lightly over her body.

"I'm here if you need anything. Anything at all."

"Thanks. Keep doing that and be my pillow." I could do that. "... I know there probably isn't a very good answer, but what do you think your family was like?" ... And I suppose I could try to answer that.

"I think... It's probably closer to whatever ponies do. Though, having said that, for all I know the ponies get together by drawing straws or engaging in ritual combat." As I was hoping, Carina started to giggle just a little bit. "No, my family was... Small. Very small compared to yours. I had... Somebody. Somebody was there... For most of it. And maybe... A brother?" I sighed as I gave her a pat on the back. "I don't really know what I'm talking about. I don't see faces or shapes. It's just... waves across a black sea."

"... What does that mean?"

"A little dramatic wasn't it? I can tell something is there, or was there, but all I can see are the impressions it makes as it occasionally comes closer to the surface. Like I'm trying to look at someone through a blanket. Does that make sense?"

"I think so... As vague as that was, your family sounds nice."

"Well I certainly don't remember the bad times..." I looked to the resting Beta Knight at our table, mask replaced. "I don't really understand why I remember the things I do. Just, stories and games. And even then it feels like there is something important missing."

"Sounds frustrating..."

"Only sometimes. When I have nothing else to think about. I don't know what I'm missing, all I know is what I have here. With you."

"Mm. You big sap. I love you."

"I love you too Carina. You going to sleep?"

"Mhm."

"Alright." I leaned back into my pillow as I laid my hands across her back. "You can go ahead and get up when you wake up early in the morning."

"...Snnn..." Yeah, that sounds about right. We hadn't even had dinner yet, but I wasn't surprised that she was so exhausted. That was a really shit day to have for what was supposed to just be a quick water run. Speaking of...

"Pssst. Hey... Beta?"

"I am awake. You need the water, yes?"

"Yeah. My head's killing me over here. Just drag the bag over to the side here so I can grab it as I need it."

"Alright. When should I return to Queen Culicidae, tell her of her daughters capture?"

"Whenever you want buddy. I'm not going to rush you."

"I will wait for the lady to wake then, so someone knows when I have gone. For now, I will sleep." Sounds good. Sleep still sounds really good right about now... Well maybe only for a little while...

Author's Note

Hey look. A chapter. It's a miracle. Praise be motivation. Let me know if I introduce any plotholes, besides the ones I keep making relevant to the story.