A DAY AT THE BRONY CONVENTION

Why in the HELL did I ask to suck that man's cock?? What is WRONG with me??

I'm in the womens' restroom by the escalators on the second floor, washing my hands.

– Enjoying your new libido? And your new personality? Your new boss certainly is!

– Shut up, you demon... jerk-voice! I don't have to listen to you!!

I'm shouting at nothing, shaking my wet fist at thin air. I look down at the sink in despair.

– You're mean...

– BAAAAhahahahaha!

Peering into the mirror, I'm only vaguely aware of the fact that the pert little piece of crowdsourced wish-fulfillment ass gazing back at me with the desolate look in her big violet eyes was once any different from her present shape. The dark indigo bangs of my mane, streaked with striated bands of pink & purple hue, hang astutely in a sharp, level cut just above my stylish eyeglasses, which I now (apparently) need just in order to see. On the whole, my face appears highly intelligent & sweetly innocent... an impression utterly wrecked by my gratuitous, indecent rack and my tight, skimpy outfit.

With my long, smart ponytail and my lewd, seductive figure, I look like the "naughty student librarian" character in some bizarre college porno flick.

And honestly, despite the "smart nerdy girl" image my body is clearly trying to project, I don't feel very smart at all. In fact, I feel quite a bit dumber than I was a few minutes ago.

In fact, I'm having a lot of trouble recalling some very basic things.

I didn't always look this way... did I?

...

Come to think of it – what was my name again?

I struggle to remember.

Studying my reflection intently, I search for any obvious clues as to my own identity. I'm quite obviously not entirely human: my skin is lavender and coated in microscopic filaments of fur, a dainty little unicorn horn juts from my forehead, I'm pretty sure those aren't human ears, I totally have a tail, and in place of a regular human nose there protrudes a diminutive snout.

Twilight Sparkle.

That's my name... isn't it?

It certainly feels right. But a tiny part of me isn't sure.

And whenever I try thinking harder about it, it only makes my brain hurt...

Um.

What was I doing again?

Oh yeah!!

I gotta get dressed up for my new job!

With renewed purpose, I take off my T-shirt, revealing a shiny crimson I cup bra. My boobs look huge on my petite 5'1" frame, seriously threatening to dwarf my head in size. Together with my dense, foxy little ass, they're easily my body's most prominent feature. For some reason I get the feeling that I'm tinier now than ever before, my shorter stature only amplifying the curvaceous contrast of my absurdly plump rump, lithe minuscule waist, and ample bust – standing here in my sleek, frilly designer-brand underwear, I look like an anime fantasy fetish figurine come to life.

At once remembering an obligation to all my loyal fans, I snap a quick photo with my phone. Over 70,000 followers now. When's that Equestria Daily piece supposed to drop?

– You're such a good little Instagram slut! You'll be making other people money in no time!

Puffing up indignantly, I grab the maroon uniform with the zipper and attempt to zip it up, muttering to myself.

– Stupid demon witch-voice lady... Won't leave me alone and just... let me... do my... job...!

The zipper is caught on the underside of my bust.

– Goddamn zipper!!

On the other side of the wall, in the mens' room, a shadowy figure sits reclined in a toilet stall. His Spike mask and costume lie slumped against the tile floor. He's holding his phone, scrolling through Instagram, and masturbating vigorously to his favorite rising IG superstar, the legendary @growingpony7. Twice now he's seen her in person – at this very con!! He loves the way her boobs appear to grow with each successive change in costume. Salivating, he imagines them growing even bigger, tittyfucking him, her whimpering helplessly as she can't help but massage her bloodflushed face ferally against the bloodswollen head of his erect cock.

What's with this fucking zipper??

Try as I might, it won't go over my tits. It's stuck halfway, slightly up past my nipples, refusing to budge an inch. Suddenly I get a familiar feeling, starting at the base of my breasts, building, gathering force as it rushes to saturate my nipples. I jump with shock, sending my big titties bouncing.

Are these things getting even BIGGER??

Figures this would happen while I'm trying to get dressed...

My boobs tingle intensely. Slowly, the sheer pressure of my burgeoning breasts begins to unzip all my hard work, drawing the zipper back down past my nipples. I try to fight it, yanking the zipper forcefully up again with herculean effort, very nearly managing to reach my solar plexus. Although my uniform looks ready to rupture and it's nearly impossible to breathe, in my mind I begin to celebrate my little victory.

Beyond the bathroom wall, the shadowy man edges himself towards climax, gripping his smartphone covetously in his palm. She's just uploaded a new image of herself as Twilight Sparkle...! With even bigger boobs than before!!

He imagines her sucking his dick.

All at once my chest surges violently outwards, straining the already overtaxed material of the uniform. Boobflesh begins to spill out beyond the zipper's teeth. The slider is losing its purchase.

Why is this happening??

Bucking hips wildly, the shadowy figure cums. Semen sprays hot across his pelvis.

Fuck!

All at once, my breasts burst from the uniform in a sharp fit of agonizing growth, pummeling the air from my lungs, driving the zipper down past my belly-button. My huge boobs flop heavily against my abdomen, quivering rotundly in their ruthless triumph. Beneath my stretched, painful skin I feel a swarm of seething capillaries penetrate like garish fractals throughout the adipose tissue, hell-bent on pumping as many growth-feeding nutrients as possible throughout my throbbing, bloated jugs.

There's no way in hell this uniform will fit me now!

Slumping down against the sink in defeat, I have little choice but to allow my tits to complete their cruel expansion. While I'm reduced to panting like a dog from the sick, pleasurable heat radiating from my overstimulated tits, watching helplessly as they pound & pulse against the cold ceramic surface, throbbing like twin beating hearts, wobbling bigger & bigger in the hefty cups of my expanding bra, which has taken on a deep emerald-green hue.

Now they're each as big as my head.

Come on!!

Mercifully, the swelling slows to a stop. I'm still gasping for breath, moist beads of perspiration vanishing into the dark chasm of my cleavage, rising and falling ominously, jiggling in time with my nervous respiration. Taunting me.

Finally...

Hesitantly, I check the tag on my overladen undergarments.

JJ cup.

Yeesh.

I toss the uniform with the broken zipper aside, trying on the slightly roomier black button-up attire. Sure enough, it's a tight fit – the buttons gapping moderately against the strain of my obnoxious bust – but it'll have to do.

I just hope the Boss doesn't mind!

I strut out onto the convention floor, swishing my tail mindlessly back & forth like a fluid purple arc streaming solely to draw attention to my luxurious ass, struggling intently to tuck my tight new uniform properly into my shorts. My cranium-sized breasts wobble obscenely, chafing & pinching my big, perky nipples immodestly up against the snug inner cups of my large viridescent bra.

Gosh, when did my nipples get so damn SENSITIVE?

My nipples, still erect from my last growth spurt, have stretched their areolae to the diameter of small teacup saucers. The nubs are thick & bloated, woefully swollen, practically grape-sized at this point. They dig indecently into the fabric of my bra, warping my thoughts, lewdly bending my fragile consciousness into debauched, unspeakable depravity. Soon enough, I'm panting involuntarily.

Sweet Celestia! All I can think about is cock!!