Principal Celestia slumped back into her chair with a groan she hoped her secretary didn't hear. The past week had been a tornado of meetings, committees, and disciplinary action. The year was wrapping up, yes, but it never felt quite this exhausting before, had it?
The arms of the chair began to rub against her sides. "Just what I need," she thought. The spell she had to cast every morning to keep her rather intimidating size in check seemed to be wearing off earlier than usual. She was growing again. Usually the spell held firm until she could make it home, but the stress of the recent days had caused it to wind down earlier and earlier. A few days ago, she had barely made it home before her panties began to strain against her rear.
Celestia looked at the clock. It was already 4:00 - surely she wouldn't have any other obligations for the day, right? "Ray?" she buzzed her intercom.
"Yes, Ms. Celestia?" the wiry voice of her receptionist, Ray, crackled through the speaker.
"Go ahead and take off early, would you? Whatever papers you're stacking up for me to sign can wait until tomorrow." Celestia felt the fabric of her undergarments begin to shift. They usually were the first to go.
"Are you sure, ma'am? They're kinda piling up...."
Celestia had to fight a bit to keep her predicament from showing through in her voice. "YES I-- ahem. Yes, Ray, I'm sure. Don't bother locking up, I'll be right behind you."
"Alright, Miss, you're the boss. See you tomorrow!" Celestia heard a few papers shift and the door to the hall slam shut. Ray must have been excited to get home. Which was fine by her, because her clothes were feeling awfully tight.
She fell back into her chair with a CREEAK and slipped off her high-heeled shoes. The chair, while expensive and well-made, was not exactly used to dealing with this new weight. Celestia wasn't exactly small and light on her best days, much less on a day like today. She felt the sides dig a bit deeper as the spell slowly lost its grip on her. She had to admit that, while the arms digging into her were an odd sensation, they were not entirely unpleasant. She never had this problem at home, where things were more adequately scaled to suit her and her sister's normal heights.
Her sister! Luna! If Celestia's job had been stressful this week, Vice-Principal Luna's had been more so. Celestia hoped her sister was holding up fine. She leaned forward, hearing a small SNAP as she did so. That'd be her panties' backside giving out. A shame - she really liked this pair. After wrestling herself free of the sides of the chair and bumping her knee against the bottom of the desk, she managed to buzz her sister's office. "Luna, is everything alright?"
"Yes, sister, I am fine," the stoic voice responded. "Why would I be otherwise?"
Celestia fought to keep her breathing under control as her slowly enlarging breasts began to press uncomfortably against her bra. "You're not having any trouble with your concealment spell, are you?"
"No, of course not. Are you--" a loud POP interrupted her question. "Sister, what was that noise?"
"Oh, that'd be my bra giving out. And if I don't get out of this skirt, I'd wager that's going next."
"My word! Celestia, are you alright?" Luna worried.
"Yes, Luna I'm fine. You know what, I'm feeling quite wonderful, actually. I wonder why I haven't tried easing out of the spell like this sooner."
"Celestia, don't you dare. I'm coming right over there and we're reapplying that spell so we can get home." The click from the other end of the line told Celestia that her sister was done talking.
But it was kinda hard to care at this point. She fell back in her chair, treasuring the creaking and groaning sounds it made under her increasing weight. She gave a deep sigh of pleasure, popping the buttons on her jacket. She knew the jacket was going to be quite tough to break free of if she left in on any longer, so she took the opportunity to slip her arms out now. It took some doing (and a little ripping) to get it done, but she tossed it into the corner of the room. She took this moment to take a glance down at her body. With her jacket out of the way, she could see her breasts fighting to escape the confines of her white blouse and her shoulders pushing up against the seams. Her cuffs had long since given up the ghost. She'd never been one to admire herself, but given the situation, she just couldn't resist running her hands up and down her chest. The word "gargantuan" came to mind, but Celestia knew she wasn't done growing yet.
She looked up to the ceiling. Seeing it closer than normal made her chuckle a bit. "A girl could get used to this," she sighed. She felt the top two buttons on her blouse pop off, freeing up ample space for her breasts to grow into. Soft rips from her blouse and skirt, coupled occasionally with a small moan from Celestia herself, were the only sounds to be heard. Then, both at once, Celestia felt her feet hit against the back of her desk and the chair hit the back wall of the office. She felt her legs bend as they lengthened, seeking another direction to grow in, since "forward" was out of the question.
She looked down at herself again - those chair arms were pinching quite a bit now. A sly grin crossed Celestia's face. She raised a glowing hand in front of her and ran it down the length of her body. What would happen if she allowed the spell to deteriorate faster? Soon enough, she had her answer. First of all, her skirt was destroyed by her now-too-wide hips. Her blouse soon followed suit, leaving her to be clothed with only the scraps of white material that had managed to stay on her shoulders. She gave a coo of pleasure to finally be free of those tiny things. The second thing that happened was that her chair gave way underneath her. With a large and very final GROOOOAN, the seat fell away from the supporting legs beneath it.
Celestia took a tumble, landing flat on her face on the carpeted floor of the office. She propped herself up on her elbows and giggled. She was definitely going to have to clean things up before the staff got here tomorrow.
A knock sounded at the door. "Sister, I am coming in! Prepare yourself!" A very determined Luna burst through the door to find her sister laying behind her desk - head and shoulders peeking out from one side, and legs kicking playfully out from the other. "My word! I didn't think the situation would be this severe! Sister, we must get you home immediately!"
"Ohh, but Luna," Celestia pouted, "I'm not done growing yet! Just five more minutes?"
"Don't be ridiculous! We're going home and that's that." Celestia raised a glowing hand and pointed her index finger at her sister, lining up the sights with her eyes. "CELESTIA NO--" Luna protested, but it was too late. Celestia had already fired the anti-spell at her sister.
****
Nobody ever quite understood why the Principal's Office was such a wreck the next morning. The scattered papers, upturned desks and file cabinets, and completely destroyed potted plants suggested some sort of break-in. But nothing turned up missing. And what of the cracks in the walls? And in the ceiling? Those were definitely very strange. When Principal Celestia was questioned about it, she answered that she had no knowledge of what had happened that evening. She had to try very hard to suppress her smile, though. Princess Luna's response included a vehement denial of any involvement and a very hard blush across her cheeks. The mystery never was solved.
Author's Note
hahaha who let this nerd write stuff
