Octavia Philharmonica Melody was many things. She was an artist. A well known artist. A musician. Her compositions were widely regarded as among the best, and her performances were legendary. She was wildly successful. And all that success meant she was wealthy, fabulously so. She lived in a palatial estate in the Trottingham countryside. Along with a penthouse apartment in the most expensive apartment complex in Manehattan, a slightly more modest penthouse apartment in Baltimare, a mansion in Old Canterlot, and her current lodgings; a modest cottage on the outskirts of Ponyville.

And she was going to murder her roommate.

"Vinyl," she said, her calm tone of voice only wavering with irritation slightly. "I am not going to ask you again. Unlock the door this instant." No response. Octavia took a deep, calming breath. "Vinyl Scratch, I know you're in there, and I know you stole the contents of my underwear drawer. Give it back, please. I have tickets to a concert, and if I am late because of this you will suffer."

"Caaaaan't hear ya' Tavs. Too busy having my naughty, naughty way with yer lingerie~"

"Vinyl!" All pretenses of composure were thrown out the window, and Octavia slammed her fists on the door. "I will rip off bits of you and shove them down your throat if you so much as consider doing lewd things with my underwear!"

"Tooooo late, Tavster. Mng, your panties smell great."

"I will fucking end you!"

"They'll smell even greater soaked in my pussy fluid, tho-"

"Vinyl Scratch, open this door this instant or I swear I will evict you!!!"

There was some shuffling inside the room, and then a click from the door as it opened, revealing a sheepish Vinyl Scratch. "Okay, okay, sheesh. Take a joke, Tavi." She hid behind the doorway, just barely concealing her modesty – it was very clear that she was completely naked. Her complexion was flushed, and her fur glistened with a sheen of moisture. "I, uh, wasn't actually doin' it with your panties. They're fine. Bras, too."

Octavia glared.

"I only do that with yer dirty laundry, not the clean stu-"

"Vinyl."

"Okay, okay, sheesh." She tossed a bundled up bra and panties at her roommate's face. "Way to be a buzzkill. Why are you such a fucking prude?"

Octavia Philharmonica Melody was many things. Rich, successful, musical, and the biggest prude in Ponyville. She had a reputation for it. No one in her hometown held as much silent disdain for the lewd as she did. "I swear t' Celestia, Octopus, Imma get that stick out from up yer ass if it kills me." She slammed the door in Octavia's face. "And I'm keepin' the rest! You ain't blue-ballin' me, I don't care how pissy you get."

Octavia opened her mouth to object, but already she could hear wet, squidgy noises coming from behind the once again locked door. "Yeah, y'hear that! Fuck you, I'm totally using your panties as a condom for a magnum dildo that I'm shoving up my cunt and there ain't shit you can do about it!"

Octavia blushed. "Oh, um..." Her cheeks flushed bright red as Vinyl moaned loudly, interspersed with angry ranting about how 'I'm gonna cum all over the rest of your undies, too, you bitch!' and 'I bet you're just jealous that my tits are so much bigger than yours!' And they were, by quite a lot. Octavia had always been petite, only five feet tall, with a modest chest and willowy build. Her small stature only stood out more next to Vinyl, six and a half feet tall with the body of a porn star (wide hips, narrow waist, huge tits).

Most ponies who knew them were baffled by the fact that they were even roommates, much less best friends – that Octavia could stand to be around someone so insistently (and delightfully) sexual, and that Vinyl could hold back her wild libido enough that Octavia wouldn't throw her out was a marvel. And, well, sometimes Octavia wondered. But Vinyl did have good points (like when it was cold out and she didn't wear a bra). And besides, the two had been roommates for years, since long before either one had become successful. At this point their friendship was held together by sheer inertia. And Vinyl's rack. Holy shit, that rack. Unf. All natural, perfect, and bigger than her head. God, Octavia wanted to just shove her face into that glorious cleavage and enjoy herself. Just give 'em a good hard fucking. Just the thought of the thorough ravaging she was going to give them made her so fucking wet and-

Octavia violently yanked her hands away from her body. She stood in place, panting heavily as she resisted the urge to lick some errant fluids from the hand that had been below the belt. She closed her eyes tightly. "No. I am remaining firmly in control. My libido will not get out of hand."

Slowly, she lowered her hands to her sides, breathing deeply. In and out, slowly, rhythmically. Calmly.

The waistband of her pyjama pants was digging into her side.

"... I need a cold shower."

It had taken far longer than Octavia would have liked to get ready. Between Vinyl stealing her underwear to use as a – she shuddered – sex toy, and the resulting cold shower that had nothing to do with arousal shut up, she had arrived only a few minutes early instead of an hour. Fiddlesticks was... well, a relation, if not a particularly close one, and she had hoped to have some time to catch up before the concert beyond a quick "hello."

But a quick hello would have to do. "So, so sorry I'm late."

"Shucks, t'ain't nothin' worth bothering about, sugarcube!" Fiddlesticks grinned widely. "I'm just glad y'all could make it to my proper fancy-like musical stuff debut!"

"It's certainly an interesting decision." Fiddlesticks stuck out like a sore thumb among the rest of her ensemble. All of them were fairly respected musicians, but they were an... eclectic mix. High Note was an accomplished jazz pianist. Contrabasso was, like Octavia, more of a chamber musician – the most experienced in the type of music they would be playing tonight. And Treble Clef was... experimental, but a competent violist.

As for Fiddlesticks herself, she had years of experience as a country musician. Octavia was interested in hearing what this odd mixture of talents would bring to the proverbial musical table. "Well, don't let me keep you busy. Wouldn't want to delay the performance because of me."

"Yep! And remember, if I don't see y'all front 'n centre, I'm gonna be mighty pissed." She grinned warmly. "Far as I'm concerned, y'all're the guest of honour here!"

"Yes, yes, don't worry, I'll be in the best seat in the house." Not the front centre seat, but slightly back. Close enough without being too close. The third row, Octavia found, had the best acoustic position in this specific concert hall. It was like the sound washed over you in a tidal wave of music. That feeling, far more than Vinyl's crude flaunting of her body, was really sexy. Almost as sexy as the slight wiggle of Fiddlesticks's tight, well muscled bottom as she sauntered away to the stage. It was a shame that she didn't wear a proper suit more often, preferring baggy overalls that concealed her luscious figure. Like Octavia, but more, and with an athletic tone from years of physical labour as a farmer. And her bandmates were hardly slouches. Contrabasso was tall – almost seven feet – and her bust was at least as impressive as Vinyl's. Her whole, ample body strained against the sheer black dress she wore. High Note was more Octavia's height, but her breasts. They were magnificent! Easily almost as large as Princess Celestia herself's — not an easy feat. Treble Clef almost faded completely into the background in comparison, but his feminine build held its own charm. Octavia wouldn't mind giving his generous ass a good, solid, squeeze.

She frowned, biting her lip and wrenching her eyes away from Fiddlesticks's lower body. "Dammit, Vinyl..." she muttered. Clearly the cold shower hadn't been enough. She awkwardly rubbed at her shoulder, where the straps of her own dress had started to dig in painfully. "Ugh, that's bad. I like this dress, dammit." She forced her head to the left and walked, quietly shuffling her way to her seat. Her ample thighs rubbed together, creating a delicious friction that made her bite her lip even harder. She ran a finger under her bowtie as she sat down. "Geeze, it's hot in here," she muttered, casually placing her purse on her lap to cover up the small dark stain that had developed in the crease of her legs. Her dress was a dark purple and the lights had dimmed, but still. Never could be too careful, especially since the seats to either side of her had already been taken while she was distracted with her arousal.

To her right was Lyra Heartstrings – Octavia had collaborated with her several times in the past, and they were on good terms – and to her right was her marefriend, who Octavia was less familiar with. She knew she was named Bonbon, and that was about it. Cute little thing, small and flat chested, but she had a decent pair of hips on her. Lyra herself was tall and elegant, which was a nice way of saying she was kind of scrawny. Neither mare would be particularly distracting for her, and Lyra would be far too busy ogling her own marefriend to look at Octavia, so she was safe on that end. Lyra noticed Octavia's unsubtle gaze, and smiled. "Oh, hey! 'sup, Octavia?"

"Oh, nothing aside from the obvious." The conversation, if it could be called that, ended there with a friendly grin from Lyra before she turned her attention back to her marefriend. Octavia let out a sigh of relief. That was one side of her she didn't have to worry about. Ideally, the pony to her right would also be someone she knew – and, more importantly, someone she knew wouldn't arouse her or notice the lingering effects of her earlier arousal. She turned to her left-

And was greeted by a face-full of boob, encased in an evening gown, several sizes too small for the enormous mare wearing it. Nipples were clearly outlined against the tight fabric, straining to contain her ample cleavage. Made all the more ample by a neckline that plunged almost all the way to her crotch, revealing a tight midriff.

"THIS SEAT IS FAR TOO SMALL FOR OUR AMPLE REAR, SISTER."

"There's still a chance for us to move to the Royal box."

"NONSENSE! 'TWOULD BE THE HEIGHT OF ARROGANCE TO PLACE OURSELVES ABOVE OUR SUBJECTS. DOUBLY SO TO DO SO FROM THE MIDST OF THEIR PRESENCE!"

"Volume, Luna. The performance will be starting any moment now."

Octavia's face fell in time to the sullen grunt from Princess Luna.

"And this dress you picked out for us is far too small."

Celestia sighed, her own cream coloured gown significantly more modest than her sister's, in spite of her significantly less modest proportions. "You wanted to attend this concert, sister. This was the best formal wear I could find on short notice."

"We still don't understand why our own formal wear was unacceptable," Luna muttered sullenly, crossing her arms underneath her head sized breasts, pushing them upwards and outwards. There was a creaking noise.

Celestia lightly rubbed the top of her snout. "I believe I've told you this before, sister, but nipple pasties and a thong stopped being acceptable formal wear nine hundred and eighty four years ago."

"Then clearly," Luna said, pouting, "a comeback is well overdue."

"Oh god." Octavia blushed, trying unsuccessfully to force the mental image of Princess Luna in nipple pasties and a thong out of her mind. Her eight foot tall form, second only in beauty to her sister, commanding even more attention than it already did.

"Exactly! We are goddesses, and yet we hide our divinity behind flimsy fabric! We should be baring all but our most intimate parts, so that our subjects may bask in our glory! Not... hiding them behind a veneer of false modesty! Let the jealous cows of the Canterlot elite hide their inadequacies behind clothing," she spat the word out like it was poison. "I'm sexy and I want to be able to show that off to the world, dammit! Ah, well, at least some ponies still remain untainted by the unseemly prudishness that seems epidemic in this era." She smiled, turning her gaze slightly downwards to better look at Octavia. "And everypony is so much smaller, as well! Why, this mare here is the only one attending taller than six feet." Her gaze travelled up and down Octavia's form, blatantly undressing her with her eyes. "Still on the short side, of course, but would make a much finer bedmate than most."

Octavia suppressed a groan.

"Sister."

Luna pouted, but obeyed Celestia's unspoken command, once again crossing her arms and sulking. The taller (much taller, so much taller, ten feet tall, so big and sexy, want to fuck her so goddamn bad-) mare leaned over. "So sorry. My sister still isn't quite used to modern society. Sometimes she forgets what is and isn’t appropriate public conduct." A mischievous grin. "She shall have to be," she licked her lips, "disciplined once we return to the castle."

"Mmmm, we eagerly anticipate being educated, sister," Luna purred.

Octavia was hunched over slightly, her breathing erratic. Her dress dug into her soft flesh uncomfortably, and she focused on that feeling. That decidedly unsexy, unarousing feeling. And not the burning heat in her loins, or the fact that Luna's hand had unsubtly drifted its way into Celestia's lap, drawing a breathy cooing noise from the larger princess, or the mental image of Luna's impending discipline, the two enormous ponies, so big, so big, pressing their bodies against each other, sexual heat radiating from them, so hot, so big big bigger bigger biGGER BI-

"Hey, Octavia, you doing okay? You don't look so good."

Octavia snapped upright, back straight, and turned to look the smaller mare in the eyes. "Oh, uh-"

"She's just horny."

"Bonbon!"

Octavia could feel her eyes shrinking to pinpoints in sheer horror.

Bonbon shrugged nonchalantly. "Well, I mean, she clearly is. She's hunched over, she's breathing weird, she's blushing like crazy, and look, she's got her purse right over her cunt. Prolly 'cos she's leakin' like crazy." Lyra stared, slack-jawed. "Truuuuuust me, hon, I can tell these things. 's an Earth Pony thing. And anyway, look at what she's sitting beside. They're practically incesting right here in public."

"Uh-"

"Kinda hot," she said, smirking. "Gives me some ideas~"

"Bonbon!" Lyra squeaked, blushing heavily.

"I've got Fisty McGee in my purse~"

"What why the hell do you have a dildo in your purse?!" Lyra harshly whispered. "How the fuck did you even fit that thing in your purse it's like three feet long!"

"Magic. Duh. Oh, I've got my leather collar in there, too!"

"We're in public!"

Bonbon grinned, licking her lips predatorially. "That just makes it better."

"Bonbon, no!"

"Bonbon yes!"

Octavia was suddenly very glad she didn't know Bonbon very well. She suppressed another groan, pressing her purse firmly into her crotch.

Something big and hard pressed back.

Octavia's eyes widened in panic. If Little Tavi had come out to play, that meant she was much closer to the point of no return than she had thought she was. She adjusted her purse, drawing the idle attention of her neighbours, and rummaged around inside, trying very hard to ignore the growing bulge it inadequately concealed. Desperate for any kind of distraction from her growing arousal, her growing cock, her growing everythingggggggggg, she pulled out her cell phone.

“Nggggg,” she moaned, deep and throaty and as quietly as she could – which, admittedly, was not very quiet at all. But hopefully her neighbours were distracted enough by their own sexual antics to notice her little problem. Not so little. Big. Very big. Bigger. Growing bigger, so big, huge, enormous, gigantic, big big bigger bigger-

She had new texts. She fiddled with her phone, larger fingers making things awkward and difficult, but she eventually managed to access them. They were from Vinyl.

“ey bb srry 4 erlier”

“didn't mean 2 make thigns awkward n shit”

Octavia sighed. An apology from her roommate would make a suitable distraction.

“just rly drunk, thought itd b funny”

Yes, that was Vinyl's sense of humour when drunk summed up nicely. Steal Octavia's panties, use them as a sex toy. One of her hands idly worked its way south.

“n horny 2. super drunk and super horny. aint had a good fuck in like a month.”

“doesnt help that my roomate is a huge fukkn tease”

“cough cough”

There was a loud ripping noise, accompanied by a deep grunt from Octavia.

“lookit this”

“this is what u did 2 me tavs”

“ur fault”

This was the worst decision she could make in this situation. The smart thing to do would be to close her phone, and politely excuse herself. Have a quick wank in the bathroom. If she could just cum, somewhere private and safe, everything would be fine. Her reputation would remain intact and she wouldn't risk anyone being exposed. Her condition spreading. And spreading and spreading and spreading cumming so much everyone getting covered in cum so much cum gotta cum gotta get bigger gotta make everyone bigger gotta fuckkkkkkk.

Without even thinking, Octavia scrolled down to the next message, her free hand tightly grasping her swelling shaft.

There she was, in all her glory. Octavia had caught glimpses before, bits and pieces that naturally resulted from Vinyl's exhibitionist nature, but she'd never actually seen her roomate naked. Completely. Utterly. Naked. The picture was taken from an angle that by all rights should have been impossible to take a selfie from – were Vinyl not a unicorn, the telltale glow of magic revealing how her phone could take a full head-on shot of her glorious form. Her hands were left free to pleasure herself – one of them hefting one of her enormous tits up to her mouth for her to suck on, the other spreading her glistening lower lips wide.

“What the fuck is that smell?”

Octavia turned to her right mindlessly, her hands more focused on tending to the still growing tent in her slowly tearing dress. Dimly, her glazed-over eyes registered Bonbon, on her knees in front of her marefriend. She no longer had her dress on, or any clothing at all, save for a black leather collar, studded with silver spikes in the shape of the words “cum dumpster.” A trail of slick, silvery juices trailed from her snout to a space in-between Lyra's spread legs, which she was forcefully holding apart. “Bonbon, don't stop, I'm so clooooooooose,” Lyra moaned.

“No, seriously, do you smell that? It smells... like our bedroom after our Tuesday three-way, but, like, times a billion.” She inhaled deeply, and let out a deep moan. “Fuck, I could cum a billion times just from that smell. What the fuck-” She turned, and stopped, and stared.

And then she tilted her head up.

And up.

And up.

Octavia was enormous, easily towering over even Princess Celestia herself. Her dress was completely gone, all that remained of it some stray shards hanging off her fifteen foot form, and her six foot long tree trunk of a cock. Thick and veiny, jet black at the bottom fading into a pale shade of beige at the top, oozing thick translucent fluids. Her balls, each one more than a match for her boulder-sized tits, churned audibly with cum.

And she was staring at Bonbon, eyes dull with arousal. She opened her mouth as if to speak, but all that came out was a low, rumbling groan that sent shivers down Bonbon's spine.

“Holy shit,” she whispered. She licked her lips, one hand drifting to her already moist cunt, the other slowly reaching out to Octavia's swolen nuts. Gently, she touched it, immediately eliciting a deep, throaty, “FUCK” from the giantess, accompanied by another foot of growth.

“Gnnnnn, stoppit,” she muttered. “So fuckin' sensitive, feel like I'm gonna cum any second.”

“Oh,” Bonbon muttered huskily. “Well, we can't be having that, now, can we?” She licked her lips, staring hungrily at Octavia's meat. “I mean, I haven't even had a taste of your pre yet. No, you aren't gonna cum until I've enjoyed myself. Thoroughly.” She slowly rose, taking one step, and then another.

Somewhere, deep in the back of her mind, panic set in. This was bad. She couldn't let this happen. She couldn't let herself cum. She had to get out now.

Horror slowly set in as she realized she couldn't. Her ass had grown so big that she was stuck in her chair. She struggled weakly, but her body was too addled with arousal to muster the strength needed to escape. A wicked, lustful grin spread across Bonbon's face. “Trying to run away, are we? Oh, no, you aren't going anywhere until I say you can, slut.” Another shaky step forward, one hand still buried in her wet folds, busily working away, the other tweaking an erect nipple and gently cupping her small breasts as best as it was capable of. “You think I'm just gonna let a cock bigger'n I am get away? No, not happening. Not until I've had my fun. I want to feel it against my body, hard and thick and big and harder and thicker and bigger and BIGGER until it can't take it anymore and cums all over the place. All over me.” She lifted a leg to stand on Octavia's beanbag-sized sack, slowly climbing her way up. “I wanna feel every individual fucking sperm in those cumsacks of yours, whore,” she growled, before hefting herself upward and straddling the monolith before her. “Flowing up and out and everywhere. Gallons and gallons and gallons of cum and it's all fuckin' mine.” It took all of Octavia's willpower to hold back from orgasming right then and there.

Which, she quickly realized as a sharp pain shot through her balls, was not actually a very good idea on her part. Her testicles surged in size, doubling and then doubling again, emitting loud gurgling noises. Dimly, she was aware of a clamour throughout the theatre as people noticed her growth. The band, barely a few seconds into their first piece, was staring in shocked silence except for Fiddlesticks, who merely rolled her eyes and smirked. “Shoulda said something,” she muttered. “Oh well. Don't worry, guys, just sit back and enjoy the ride.”

Her lust-addled mind vaguely registered a pressure on her right testicle. Lyra had wrapped herself around it, licking and kissing and grinding against it, still desperate for the release she had been so close to before Bonbon had found more interesting prey. Her left testicle wasn't left out for long – it had encroached enough into Celestia and Luna's space that they had little choice other than to join the fleeing audience or else take up residence on it. And the overpowering musk of Octavia's member, the sheer wall of raw sexual smell, had left the two far too aroused to object to having to move their suddenly much more explicit public display of sisterly affection onto the dark grey mass.

Octavia groaned, low and long and loud, as she began to grow once more. Sixteen feet became seventeen became eighteen became more and more and more, bigger and bigger and bigger. There was a dull creaking noise, and then a sharp crack as the armrests of her seat snapped off due to her expanding rear, followed by a crunch as the rest of the seat was crushed by her twenty-five foot frame. Twenty-five feet and growing, fast. And right in the middle of it, clinging to a cock more than twice her size, was Bonbon, utterly lost to depraved joy. She had her body wrapped around the pillar of flesh in a lewd embrace, squeezing and humping and grinding and licking at the copious flow of precum that flowed down Octavia's member in a salty river. Hot surges of arousal flowed through her body as the musky fluid soaked into her fur. And, once it became too large for her to fully embrace, she climbed further up and up the monolithic cock until she was straddling the flat head.

“C'mon, bitch. Cum for me. Cum all over me. I wanna get fuckin' saturated. I wanna be so thoroughly coated in cum that I could shower and shower and shower and shower and still reek of your scent for the next year. Two years. Fuck it, forever. Any given moment from now until the day I die, I wanna be able to give myself a good sniff and get myself a nosefull of your musk. To smell tonight. The night that I took a cock the size of a fucking building and made it mine. All mine. My fucking property.”

Octavia groaned, and surged another few feet. Her titanic testicles gurgled deeply and loudly, pulsing bigger and bigger and bigger even faster than the rest of her as she desperately held back her orgasm. More and more, bigger and bigger, more and more productive. The more she held back, the more there was to hold back.

“Come on, just give in. 's more fun that way.” Bonbon grinned lewdly, giving the landscape that was Octavia's cock a gentle nibble. “All you're doing is making the inevitable fun even more. And it's not like it matters, because I can feel it happening.” Octavia dimly registered the leather collar digging into Bonbon's throat much more than it had been previously. She licked her lips. “Guess even your pre's potent enough to get things going, huh? Just imagine what your cum's gonna do to me. You've got a gift, pet. A gift that you've fucking squandered. So come on and cum. Spread the love to ponies who'll appreciate it. Like me. Make me big. Make me fucking enormous. Make me HUUUUUUUUUUUUUUGE!” Her moan was accompanied by a surge of slow but inexorable growth, inch after inch after agonizing inch. Her breasts and hips and ass all very slightly outpaced the rest of her, just enough for her to be noticeably more womanly. “Mnggggggg, c'mon, don't tell me I'm gonna have to wait for my cock to grow in and give your urethra a good fucking before you'll cu- cu- cuuuuaaaaaaaaaaFUCK!” There was a wet, squelching noise as flesh moved and surged and rearranged itself into a sizable member, glistening with moisture – dark indigo blue at the base, mottling to a dark fuchsia at the head. She grinned weakly, tongue lolling out of her mouth slightly. “Heh. Speak'a the fuckin' devil and he shall appear.” She gently grasped its base, giggling slightly as her fingers just barely managed to circle it. “I'm gonna fuckin' enjoy you.”

Her grip tightened and she began to stroke, slowly and rhythmically. Her free hand gave her hefty new cream-furred ballsack a squeeze, eliciting a deep groan and another inch of cock. “Yessssss, keep growing, baby. Get nice and big for mommy. Don't worry, I'll make sure the big slut here feeds you lots and lots of delicious cum so you can grow big and strong. She can't hold back forever.”

Octavia grunted. She could damn well try. The foot of growth that resulted from her redoubled resistance only slightly dampened her resolve. Things had gone too far out of control already. She would not allow it to spiral further into chaos.

“C'mon, Tavi, you know she's got a point.” Octavia dimly registered Fiddlesticks, her top unbuttoned, and her jacket and pants completely discarded, sitting on one of her breasts. “Y'all keep holdin' back, 's just gonna get worse 'n worse 'n worse. Remember Granny Sforzando's eightieth? Do y'all really wanna have that happen to you?” Octavia groaned in response, surging another five feet. Fiddlesticks sighed, and shrugged off her blouse. “Y'all're already waaaaay past the point'a no return, sugarcube. Right now either y'all keep on tryin' to hold back 'til you fail 'n flood the whole concert hall. Or,” she purred, licking her lips and getting a good grip on an erect nipple almost as big as she was, “y'all can just let yerself have some fun for a change.”

Octavia bit her lip. As much as she hated to admit it, Fiddlesticks had a point. But she couldn't just give up. She was Octavia Philharmonica Melody, god dammit. She'd had this... this curse ever since puberty and had let her iron willpower slip exactly once before, ever, and that had been before she even knew she'd inherited Granny Sforzando's little problem. She firmly believed she could get her arousal under control because she had never before let it get out of control.

Which, she suddenly realized, was probably not the most healthy way she could have handled it. For almost twenty years she had kept herself in check. Twenty years of pent up arousal and frustration and cum, constantly bashing itself against the stony walls of her resolve, building and building, more and more and more until she couldn't possibly hold it all back. Perhaps if she'd found some way to keep herself under control while still allowing for the occasional release, Vinyl's earlier behaviour wouldn't have caused a problem on quite this grand of a scale. But still, this epiphany could have waited until she wasn't in the middle of a crowded auditorium full of ponies. Maybe she could at least push it back until she got somewhere more private, and-

There was a deep rumbling, gurgling noise. It came from the direction of her crotch, long and low and getting louder.

And then she began to grow. Not the slow, almost imperceptible growth of her building arousal, nor the uneven surges of her consciously holding back. It was a steady, inexorable buildup of twenty years of sexual frustration finally finding a crack in the dam.

“Oh.”

Octavia's hands were already on her cock. She hadn't even registered the moment when they’d begun pumping the tower of black flesh, coaxing her ultimate release from it.

“Sorry, Fiddlesticks. It, uh, looks like I took too long to decide.”

A deep, primal warmth built up in her gut as the pace of her growth picked up. This was her, unleashed. Free from her prior restraint whether she liked it or not. Her now prone form – she couldn't fit in the concert hall otherwise – stretched from the very back of the hall all the way to the back of the stage.

The warmth built and built and built and then exploded. Octavia's vision went white and her mind went blank, overwhelmed by the sheer sensory overload. She vaguely registered her surroundings; cum splattering with explosive force against the rear of the hall before surging forward in an inexorable tide of spunk. Her spunk, more and more and more flooding the room. Coating everything and everypony, there was so fucking much of it. And then more. Gallons and gallons, and even then that felt like an inadequate descriptor, even from deep within the haze of the most mind-blowing orgasm Octavia had ever experienced.

Time seemed to stretch on and on into infinity. Octavia had no idea how long it took for her to come down, because by the time she came to her senses she was already quickly approaching her normal size. Completely naked, of course, that was unsurprising. There was no way her clothing could have survived – much to her irritation. That was a new dress, and it had been an original design by Rarity specifically for her. That kind of thing didn't come cheap, and anyway she had rather liked it and didn't relish having to shell out more bits for a replacement.

And she was coated in a thick layer of her own spunk. She carefully wiped away as much of what had gathered around her face as she could, being careful not to get any into her mouth and start the whole damn thing over again.

“Fuck,” she muttered, glancing around. She was thoroughly unsurprised to see a hunched over figure, at least seven feet tall if not bigger, too coated in cum to be recognizable were it not for the familiar tone of its moans as she began to grow. Of course Bonbon would be the first, she had been at ground zero.

Octavia grimaced. The first order of business, she decided, was to get very far away from the concert hall, and the second was to get herself cleaned off before the musk of her semen got her worked up again.

Third, she mused as she darted her way to the exit, would be coming up with some way to explain her lack of clothing to Vinyl when she got back.

She decidedly did not relish that task.

Author's Note

First half of my first ever commission! Expect the second half within the next few weeks.

Bonbon was honestly a bit of a surprise, but a more than welcome one. Trust me, things are only gonna get more insane from here.