Phoenix

“Oh, come on!” Fireside groaned as she tried to pull her arms through the sleeves of her shirt, only to have the fabric get caught and encase her arms like sausages.

“Well…” Aria peeked around the wall to see what the commotion in her sister's room was about, only to see the girl slowly peel herself free of the tight embrace of the fabric, her whole physic on display save for her ill fitted underwear. “I didn't realize just how much our little visits to the gyms had done to you, Glow.”

The girl spun around to look at her sister, playfully annoyed look on her face as she stared at the girl who had entered her room. Fireside chuckled as she looked into her full body mirror, eyes tracing over her body and absorbing the changes that had occurred since she started going to the gym with her sister and Indigo.

Her arms had increased in size slightly, becoming firmer as her muscles had become more defined, slightly visible even when the limbs were at rest. Her legs had become even more solid, the swimmer like muscles in them helping make sure they didn’t look overly bulk and out of place on her frame. Her abdomen had changed the most, going from a health, firm plain, to a rugged mass of defined muscles, her hands errantly tracing over them.

“Yeah, I guess… But I think I may have been like this before the injuries maybe? I mean, I shouldn’t have gotten into this kind of shape at that rate.” Fireside gave a quiet chuckle as she pried her eyes away from the curves of her lower half to look at Aria, only for her expression to falter when she saw her sister so obviously staring at one region in particular of the amber skinned girl’s body. “Really, Aria?”

“What? It’s not my fault your bubbling out of your cups!” the girl gave lewd chuckles as she shook her head. “Looks like you need to go bra shopping, huh?”

“I hope not. I’m thinking that it’s just that I’ve firmed up, more muscle mass around the ribs than these two getting bigger.” Fireside looked down at the slightly struggling piece of clothing, mouth drawing into a deep line. “So hopefully I can get away with getting Sonata to sow a little more length into them?”

“Welp, I don’t know what to say really. Well, other than-” Aria started, only to be cut off by Fireside, the girl giving a dangerous look.

“Aria, don’t you even think about-”

“Daaayuum girl!”

“Get the fuck out of my room you damn pervert!” Fireside shouted amongst barely restrained giggles, as she flung her uniform at the retreating form of her laughing sister.

“I don’t want to have to get a new uniform…” Fireside pouted as she looked at the clothes now littering her floor.

***

“You do need a new uniform, Fireside.” Adagio said as the quartet of sisters got out of the girl’s car to stand in the unseasonably warm air for a mid-February Friday. “Your new physic does not seem to be able to fit in those old clothes.”

“They fit just fine!” Fireside whined, crossing her arms as she pouted, only for a loud creaking sound to be heard upon the girl doing so. “... Shadup!”

“I am more than certain that you would be feeling better if you weren't encased tighter than a can of sardines.” Adagio gave a small frown as she studied her sister. “The one issue with the academy here is that they make the uniforms just barely fit, so any small change and they, well… you know what happens.”

“I’m surprised they aren’t tearing off of her.” Aria commented as the four girls started to once again walk towards the school grounds. “Like she has got some serious pipes now!”

“Ariaaa…” Fireside groaned, causing Sonata to start giggling as she skipped over to embrace her taller sister.

“I do have to agree, Fiery, just look at how tight it’s sitting across… you…?” Sonata grew silent as her hands went to jiggle the taller girl’s bust, only to find the globes strangely unsupported and bouncing around haphazardly from her motions.

“...” Fireside stood in silence, a blush spreading across her face as Sonata slowed her bouncing of Fireside’s breasts, the other two sisters looking back to see what was causing the silence, only to freeze when they realized the cause. Adagio’s face flooded with shock at her sister’s decision, while Aria gave one of her trademark grins as Sonata let go and stepped to the side, an uneasy smile on her face.

“It was too tight.” Fireside explained before striding to the school and past her sisters, each of them giving the other a look of understanding as Fireside vanished around the corner.

“Well, if anyone could pull it off, it’d be her.” Aria said as the other two Sirens drew close, only to reach out and swat at Sonata’s own generous bust. “Other than you, Sonny.”

“Aria, stop! She’s obviously really uncomfortable with these sorts of things.” Sonata whispered harshly as she swatted back at Aria, a fierce look gracing her normally peaceful visage.

“Well the sooner she gets “comfortable”,” Aria gave little finger motions with her emphasized word, rolling her head in the process. “The better. I miss Adagio’s bed.”

“While it has been nice, I do miss having you two close by.” Adagio said quietly, making sure that the students surrounding them didn’t hear in on the girl’s private conversation.

“Geeez…” Sonata’s pale cyan cheeks puffed out adorably as she started to fume in pure Equestrian. “Why did this world have to be so stingy!? It’s not fun having to be alone in bed…”

“Isn’t that why you got that snake?” Aria looked over with a playful grin as she continued the Equestrian conversation. “That little thing is an even bigger pervert than you are, and that’s sayin’ something!”

“Pot calling the kettle black, Aria.” commented Adagio as the trio made their way into school, ignoring all the weird looks the three of them were getting for talking in what sounded like another language to the students around them. “Though I wonder…”

The trio remained silent as they stalked through the crowded halls towards their lockers, which were thankfully situated near their homeroom. They had just about rounded the last corner before they heard a rather startling cry from a familiar voice.

“Gaaah!” the trio heard a loud bang followed by someone, who they all collectively hoped wasn’t Fireside, hit the floor. Hard.

“Fireside!” Sonata cried out, worry replacing her every thought as she tore around the corner and rushed to her downed sister, the girl laying on her back as paper flew through the air around her.

“Sona? Oh, hey you three.” Fireside nodded as she slowly sat up, trying to look around her to see just what had happened. “So, uh… My locker kind of… Blew… Open?”

“I can see that.” Adagio said, looking around with eagle like vision in case something not desirable was still at play, even as students tried to make their way around the four of them.

“Damn, Glow!” came Aria’s voice, the girl sounding impressed as she turned around to show the various papers in her hands. “I’ve never seen so many Valentine’s cards!”

“...What?” Adagio stormed over and grabbed one of the sheets of paper from her chuckling sister’s hands, flipping it open to read what was scrawled inside. “I’m not gay, but I’d totally go down on you. HMU! One, four oh three, eight six seven-”

“Five three of niiine!” Sonata sang out, giggling as she finished. “I always laugh about how desperate that guy was. I still don’t know why he kept calling me Jenny, though.”

“Er…” Fireside looked around at the piles of paper around her, picking them up one at a time to read them, only to have the blush on her face continue to deepen.

“Heh, this guy, has to be a guy, the writings worse than chicken scratch!” Aria was whooping and hollering as she held one out in front of her as she doubled over in laughter. “Hey, Count Titula, why don’t you come hang out at room-”

“Nope! Nopenopenopenopenopenopenope…” Fireside continued to repeat the same word over and over as she got up to her feet, walked over to her locker and started flinging all the notes out of it, only to grab her binder and make her way to Dean Cadance’s room, slamming the door behind her. “nopenopenopenope…”

Eventually her sister’s entered the room, shrugging as they opened their own lockers and each receiving some amount of cards of their own, Sonata the most and Aria the least, before following after their sister. They were the only ones in the room, Twilight oddly late by her own standards, but the three appreciated it, especially Aria who took the chance to go over and further rile up her sister.

“C’mon, Glow, can you blame them? Your a fucking monster when it comes to sex appeal!” Aria slapped the girl on the arms as she shook her back and forth. “If you weren’t my sister I’d have half a mind to-”

“Staaaaahp!” Fireside cried lamely, burying her face into her hands, her ears turning a violent red as the air seemed to shimmer around them from the heat of her blushing.

“Come now, Aria.” came Adagio’s chiding tone, the girl walking over and pushed Aria away, her own arms coming to rest around Fireside’s neck. “You are being quiet base. Besides, intellect is ever the attractive feature, and our dear sister has it in drove…”

Fireside couldn’t help but shiver at just how seductive her sister’s voice was, combined with Adagio leaning forward and pressing the back of Fireside’s head into her bust, instantly causing the shivering to stop as Fireside undoubtedly realized what was pushing into her head.

“Oh enough you two!” Sonata rushed over and freed her sister from the two tormentors, embracing her tightly, but not before shoving the crimson face of Fireside into her own generous bust. “Personality is where it’s at!”

The three girls gave small cries of shock as Fireside suddenly went slack, slipping out of Sonata’s grip and falling to the floor, seemingly unconscious. Panic started to erupt as the three rushed to check on the girl, a collection sigh of relief when they found that Fireside still had a pulse.

“Umm… Too much?” Sonata asked, giggling nervously.