It was, as usual, mostly Sweetie Belle's fault. Rarity's little sister and her overly excitable friends had had a sleepover the night before and as a result Rarity had barely snatched a wink of sleep. Rarity had made no small effort that morning to cover up the dark circles under her eyes with just the tiniest smidge more makeup than usual. She'd spent that morning feigning interest in her sister's rambunctious account of last night's goings on while she licked the back of her teeth in an effort to stop herself from yawning, for a lady never yawns in front of others and especially not while they are talking.

The elegant young highschool student had set off slightly early that morning in hopes of perhaps catching the smallest of naps in the quiet of the music room. And it was through this, only slightly contrived, set of circumstances that Rarity was to be found dozing, slumped in a chair next to the school's grand piano. Her hands placed daintily in her lap, her head tilted at a slight angle and her milky white skin drenched in a beam of warm morning light. Her plump lips were ever so slightly open, the gentle sag of her bottom lip revealing the moist, pink cavity of her mouth. Her eyes closed. Her handbag sat beside her and within its depths her trusty phone ticked away the minutes before school and before it would sound the alarm to wake her and ensure that her brief nap did not eat into her morning classes.

The music room was silent, save for Rarity's breathing and the distant clamour of student's arriving... then... the smallest scratching noise... like a mouse asking to be let in. Rarity did not stir beyond the gentle rising and falling of her perky C-cup breasts beneath her white, frill collared blouse. The scratching persisted. It came from somewhere down below. Beneath the wooden floorboards. Rarity was having an unpleasant and slightly ominous dream. She dreamed she was a child once more and lost in an apartment store filled with frightening mannequins dolled up in ugly dresses. She gave the smallest of grunts and shifted a little in her seat.

A thin, black tendril wriggled its way out of a crack in the wooden floorboards and felt its way around. The scratching stopped. All the world held its breath as another slimy, wormlike tendril joined that first, then another.

"What kind of an... idiot sequences a pair of... socks..." Rarity murmured in her sleep, and the tendrils froze. They remained completely motionless for one long silent moment before they continued their squirming. A third tiny, slimy tentacle squirmed its way free and then all three of them, each no more than the length of a pencil, gripped onto the wooden floor and pulled.

They dragged the black carapace they were attached to out of the hole. It's body glistening in the morning sun. After a brief pause the creature seemed to acquire new purpose. It rolled and twisted. Pulling itself along the floor. Each tendril seemed to work at odds with the others, flopping and winding around. Yet, with each squirm the creature worked its way closer to Rarity's high legged purple boots.

One of the tendrils touched her heel experimentally. As if assessing whether or not she would react. When she didn't stir the other two tendrils joined the first. Their stickiness allowing the being to ascend one inch at a time.

Rarity's creamy white thighs opened ever so slightly as she slouched in her chair. Her dream had taken a more pleasant turn. She'd finally found the store she was looking for and it was filled with white gowns that danced all on their own.

An inky black tendril slithered its way along the skin of her knee. In a few seconds the creature had clambered up, over the hem of her skirt and begun to worm its way up her blouse, using the frills as a foot... or perhaps one should say a tentaclehold. Finally the crawling horror reached up with one of its floppy appendages and touched her refined and delicate chin.

Rarity's mouth still hung slightly open, her rouge lipstick smeared bottom lip sagging ever so slightly as the creature touched it. It clambered up, heaving its whole weight onto her face. Like a swimmer dipping a toe in the pool to test its temperature the creature eased one of its thin tendril into the warmth of her mouth. Exploring the pearly wall of her teeth and then the pillowy softness of her tongue.

A second tendril joined the first, swimming in the small pool of saliva that gathered under her tongue. Rarity's mouth opened a little wider, all on its own, as if to invite her nightmarish guest inside. The creature obliged.

Rarity awoke to the insistent sound of her phone's alarm but a few moments later.

"Goodness, I should hurry," she risked a yawn in the privacy of the music room, "I feel much better. A girl simply must have her beauty sleep."

She hardly noticed the slightest hint of a rank after taste in her mouth as she gathered up her things and hurried out the door.

Hour One.

Her mathematics teacher's voice sounded very distant that morning. Rarity was somewhat distracted by her tummy.

Had it been something she ate? The English muffin she'd had for breakfast that morning? Her guts felt... alive... or almost as if there was something moving inside them. They heaved every now and again, sending shivers up her back and eliciting hushed gasps from her. It wasn't the insistent pressure of an impending bowel movement but something else entirely. Her insides felt too active...

At the very least her stomach was not growling and compromising her precious dignity in class. She leaned back in her desk chair and placed a hand on her abdomen. She could almost... feel the faintest hints of movement in there... as if somewhere deep inside there... as if something deep inside there was wriggling around.

It was then that the itching began. Starting as the faintest of tickles... barely noticeable. Her... anus was...

Rarity blushed a little. How unladylike. How undignified. Just ignore it and it will go away.

Hour Two.

It didn't go away. In fact it began to intensify. The itching sensation had spread. It had rippled down from deep inside her intestinal tract. Starting deep inside her rectum then gradually down the walls of her anal canal stopping just inside the mouth of her unbearably tight teen asshole. This was... a lot more than a little tickle...

As English class happened somewhere in front of her Rarity ran through a list of unpleasant diseases and conditions that she was aware of that could occur in... that part of a lady's body. How dreadful. She couldn't bring herself to slide a hand down the back of her skirt, into her black silken lace panties to apply a little pressure, to scratch... but the thought of it made the itching more unbearable. She needed to... but she couldn't... not in class. Who knew what her classmates might think of her if she did.

She resolved herself. Maybe if she... clenched... down there... it might provide a little relief. She inhaled one deep breath... then clenched her asshole. Her guts writhed. It had helped a little bit... feeling the walls of her external sphincter squeeze in and grind together for just a moment had sent a wave of pleasurable relief washing through her. Maybe just one more clench.

Her face flushed a little more as the powerful walls of her anus pressed together. Then... a few seconds later they did it again... and again... each clench relieving the itching ache inside then easing off to allow it to build up again.

It took Rarity a few moments to realize that the clenching had become involuntary.

Hour Three.

"It jus' ain't like Rainbow Dash to fall sick. I swear I've known that girl quite some time an' I ain't ever heard of her takin' off a sick day..."

"Um... you don't... um... think something might have happened to her do you? Like another bad soccer injury or something? Goodnestt, I hope she's alright..."

Rarity was having some small difficulty in concentrating on what her friends were saying. Why wasn't it stopping? Her hot, immaculately clean little teenage asshole refused to stop clenching. And each clench sent a wave of pleasure and relief running through her. She felt dizzy. Its clenching was so regular it was almost like there was a tiny second heart beating just inside her butthole.

"What d'ya make o' this Rarity?" asked AJ, her arms folded impatiently.

"Oh... um... make of... what exactly?" Rarity said, staggering over her words in between clenches. It was getting so hot down there.

"You even listening? Rainbow Dash's gone missin'. Didn't show up fer school, didn't show up fer soccer practice yesterday. Didn't make a phonecall to the school or send a message to any one of us..." Applejack looked slightly annoyed.

The conversation moved on without Rarity. It all sounded so far away compared to how loudly the sensation of her white starfish's insistant clenching was filling her head. She was sweating... quite a bit. She hoped it wasn't noticeable. A damp patch was forming on the back of her smooth white blouse... and there was another damp patch forming somewhere... else entirely... down between her soft sloping thighs... Her breathing was getting ragged. Such a potent aching... itching... tingling... so hard to describe. And each clench sent the sensation surging back and then it rushed back in again as her back door loosened once more. She felt so... out of control... distantly removed from her body. Locked onto that sensation...

She was getting awfully... juicy down below... Lunch break felt like it took forever.

Hour Four.

She was drenched. Sweat was running rivulets down her back but worse still... between her legs. Her plump pussy lips were engorged... her honeypot winking and leaking its contents into her expensive lingerie. It had gotten so bad that it made an audible squelch when she squeezed her thighs together.

She lay with her face buried in her arms as her anus assaulted her. The sensation simply increased. It never went back down again. She was climbing a never ending hill and each step brought her closer to gasping and moaning out loud in class. Her body was... raping itself...

She could smell her own musk, wafting up from her crotch... potent and meaty... She prayed silently that those sitting next to her couldn't smell it too... She needed to... put something inside there. She needed to scrape out the insides of her body. She needed something to power its way in there and grind her insides... something... anything... a finger... a toothbrush... even a... even a...

Rarity gulped. She knew that certain... scurrilous and low class women sometimes... allowed men to... do the business in their rear ends. To hammer their thick meaty... equipment... into that filthiest of places. Rarity's eyes rolled back in her head for a moment as another spasm in her rectum overpowered her... so hard to keep quiet. She wanted to scream. Her hips were rocking back and forth in her seat all on their own. It wouldn't be long before the dam wall in her panties broke and juices came gushing down her legs. She was gripping the corners of her desk so hard that her already white knuckles turned even whiter.

This is it... can't take any more... can't... have to... do something...

She shakily rose to her feet.

"Excuse me, Ma'am... Don't mean to... interrupt or anything but... could I perhaps excuse myself from class and make a little trip to the... ladies room... if it's not too much trouble... I promise I shan't be long..."

Hour Five

She had not returned to class. She couldn't. School was nearly over and so was Rarity. She had hurried to the bathroom leaving a trail of sweet, sticky, teen honey all the way there.

Upon arriving her resolve not to touch down there had lasted all of three seconds as she had peeled off her drenched panties and practically dived into one of the stalls and locked it with shaking hands.

Rarity had never had an anal orgasm before. In fact those were two words that very seldom even entered her mind and certainly did not appear simultaneously in there.

And yet... when that first finger of hers had driven into her virgin asscunt and her pussy juices had squirted freely, soaking her sleeve and splattering the toilet floor. As she had sunk to the floor, falling forward face first into a puddle of those same juices. As her fingers had pumped away mercilessly at her asshole, thoroughly using it as a sex organ. As her dignity and poise had all fallen away, her eyes rolled upward, her tongue sticking out. As she tasted her own girl sap off the bathroom floor. It was then that she learned what an anal orgasm really was. The first of many to cum.

She had grinded her inner walls until her fingers had gone numb from beings squeezed by her endlessly clenching asshole. Explored every fold, every bump, every crease of her new sex organ. She'd started with just one finger, wriggling its way in. Then her pointer finger had joined her middle one, stretching open the rubbery white opening and letting her insides breathe. Then her ring finger had pushed into the firm cranny.

Rarity had, on occasion, imagined being swept off her feet by a handsome prince charming. Imagined him going down on one knee and proposing in a manner most romantic. Now that same finger that she had imagined a ring sliding onto was sliding inside her. Joining her others in a desperate attempt to stuff herself.

She wanted more. She wanted something thicker. Something that could grind deeper. Stretch her wider. Something that would slam in with more force than her delicate arms could muster. Something warm. Meaty.

Rarity's toes curled up inside her expensive shoes as she hit another peak. Her eyes were watering from the sheer mind sundering force of the orgasms assailing her. She'd started out moaning and whimpering pathetically but by this point she was completely silent. Her mouth hung open in a silent scream as her body lurched with each clench of her hole.

More. Need more. Find more. The desire echoed in her head. With agonizing reluctance she dragged her fingers out of her butthole, which clenched down, suckling on them, clamping down like a limpet in a desperate attempt not to let them go.

Like a young fawn taking it s first few steps Rarity tried to make her way upright. Her makeup was horribly smudged. Black rivers of mascara ran down her cheeks. Her white blouse was so drenched in sweat and the cunt juices she had been rolling around in on the bathroom floor that it was all but completely see through: the lacey black bra she wore underneath clearly visible. Her skirt was crumpled, thankfully its darker colour concealing how soaked it was. Her hair was a disheveled rats nest. Even beneath the layer of makeup she wore it was evident how flushed her smooth white skin was. Every few seconds she twitched and shivered as her anus spasmed. She stumbled out of the toilet stall. Taking a few trembling steps towards the exit without even checking her appearance in the mirror.

She barely noticed how much her guts were squirming and wriggling as she staggered out into the school hall. Class was almost over. But she needed... something... to go deeper...

She wandered in a daze that rippled with each wriggle in her lower intestine. Little rivers running down her thighs. There had to be something... someone...

She found herself on the school steps. A 8 or 9 delinquents were milling around on the grass. Ditching class, no doubt. The Diamond Dogs, they called themselves. She knew them... distantly. Filthy... disgusting boys. Ugly. Stupid. She was... walking over to them.

"Geez, Rarity what the heck happened to you?"

It took Rarity a few solid moments to interpret what he had said in her head and to formulate herself.

"Oh... um... ah... nothing... I... slipped and fell and... nngh... got very... wet... I was wondering if... perchance I could have you boys help me with something..."

Their leader, Rover, folded his burly arms huffily, "No dice, Rarity. You must think we're real dumb after you keep conning us into doing chores and stuff for you but we ain't failing for it every time. If you got some heavy lifting to do then you can jus' do it yourself!"

"No... no, no, no... it's not that at all... It's just that..." Rarity was having a hard time finding the charm and eloquence that usually came to her so easily, "I felt... so awful that you boys... did so much for me and I never repaid you so..."

"You've come to give us a reward?", squealed Spot, the smallest and ugliest of the group. She could almost imagine that if he had a tail it would be wagging excitedly.

"Y-y-yes... why don't we go somewhere more private and I'll give you..." Rarity swallowed a burp as her stomach lurched. Something was definitely moving in there but she could not afford to think about it, "A reward... a wonderful reward..."

Rover narrowed his eyes, "What kind of a reward?"

Rarity was all but panting. She stepped a little closer to him, "I... I promise it will be very... very good..."

"We ain't doing nothing till you tell us what you're gonna give us..."

"My... behind..." whispered Rarity, hoarsely.

"What she say?" asked Fido, the heftiest of the group, glancing at the others incredulously.

"My derriere... my rear end... I'll... I'll give it to you... for a bit... you... you have my permission to do with it as you please..." she mumbled, avoiding eye contact.

"I didn't quite hear that, Rarity. What did you say?" Rover stepped closer. She could smell the tangy stink of his body mixing with her own musky waftings.

"I said that..." she tried to speak a little clearer," As a reward for all your... hard... hard... all your hard work you could... I could... b-b-bend over and... show you my... bare behind... and I... I could give you my permission to do as you please..."

A murmur ran through the ranks of the Diamond Dogs.

"You could give us permission? Do you think I can't smell a bitch in heat? Get down on your knees," a sharp toothed grin split open Rover's face.

"On my... knees..." A momentary spark of Rarity's dignity returned... urging her to run... but it was the tiniest of whispers beneath the storm of sensation coming from her anus.

"Get down on your knees like a good dog..."

She was sinking down before she even knew it. The group closed in around her.

"Now beg."

"P-p-please..." Rarity breathed.

"Please what?"

"Please do... filthy things to my... to my... to me..."

"Listen bitch. Either you say what you know you're supposed to or we all walk away..."

Rarity struggled to weave together a sentence through the thumping pleasure sparks in her asshole. She needed to really... impress them... to really make an impression if she was going to get what she wanted...

"Please... I'm a worthless... bitch in heat...Please... fuck my ass... fuck my asshole... my pathetic... fuckhole... please... just my asshole... knot me... breed my b-b-butt..."

Hour Six

Rarity's stomach was lurching and squirming. Every organ within her felt like it had suddenly acquired a life of its own and was twisting and turning. Was this normal? Rarity had never been anally violated before. She wasn't sure if this was how her body was supposed to react. But each time Spot rammed his thick, stubby cock into her body those thoughts went far away.

He was the third in line to use her hot, tight, velvety, high class fuck hole. Rover, the Diamond Dogs alpha, had gone first. He'd lasted remarkably well for a teenager. Hammering her rear end with all his might for a solid 25 minutes before driving in deep and releasing spurt after spurt of creamy spunk. He'd left her, now stripped completely naked, shivering on the floor of the school's Janitor's closet. Fido had gone second. Rutting her already used anus with mind breaking enthusiasm. She'd licked Rover's tool clean while being pounded: hitting her seventh orgasm as he slapped her face with his prick. They'd made her bark like a dog and then they'd laughed when all she could manage was a miserable whimper as her asshole was stretched wide.

The pleasure so vastly surpassed her fingers. Their musky bodies crowding around her, their abuse that made her cunt ache, the feeling of their thick seed churning inside her tummy. Occasionally one of the runts would lose his patience with simply watching and step closer, jerking his stiff dick. She assumed they wanted to use her mouth but no. They were entirely focused on humiliating and subjugating her completely. And to do that they all seemed determined to take away those things she had once valued most. Her elegance. Her grace. They spunked in her hair. One after the other squirted thick loads into her expensive hairdo as her anus was grinded into. Her hair was transformed into a purple cumrag. A tangled rats nest soaked in jizz. Rivers of the viscous white ooze ran down her forehead, down the back of her neck, down the bridge of her nose, dripping in long ropes off her chin.

They said that since she begged them so nicely they wouldn't use her cunt. She couldn't have cared less. She felt like she was floating. Like she was drifting in a sea of filth and the only thing tying her to shore was the thick piece of meat raping her asshole.

After an hour of being fucked Rarity could not tell her left from her right. But she knew enough to know that something was wrong. Well, yes. Obviously something was wrong. She, Rarity, the queen of fashion and femininity, had been reduced to a back door cumdumpster. She arched her back as Spot came inside her, adding his contribution to the warm liquid sloshing in her slightly sagging belly.

"Say it..." said Rover, expectantly.

"Th... thaaa... thank you for... for raping my... worthless fffuck hole..." mumbled Rarity as the dog dragged his knot out of her.

"Who's next?" there was a few moments of argument amidst them before another male stepped forward to rut her.

There was something else wrong. Something wrong with her insides. It felt like something was... creeping its way from organ to organ. An odd sensation. As if a tree had been planted in her belly button and its roots were spreading through her. As if each hot load that was pumped into her fed its growth in some way. She had so little time to think about it before the next cock forced her open and her toes were curling and her mind shutting down once more.

It was difficult to breathe. Something was pressing on her lungs from beneath. A tightness in her chest. She doubled forward, falling face first into the puddle of semen that had dripped off her hair but still keeping her plump behind raised and offered to the youth who was pounding it. She touched her belly. It was definite now. She could feel something in there. Like a baby kicking. Something alive. Stirring inside her.

"Please... I think there's... I need to go to a hospitalllllnnnghh..." she hit another peak, pleasure wiping out her reason as her anus clenched and unclenched, hungrily milking its new owner.

There was a tingling at the base of her spine. A sharp pain for a moment and then just a tingling sensation once more. With each thrust into her throbbing asshole the tingling worked its way, inch by inch, up her spine. What was... happening?

Fuck, the cock scraping her insides felt too good. Criminally good. The itchiness was all gone. Only pleasure now. Only pleasure. The tingling had reach the nape of her neck. It felt like there was a worm wriggling its way up her spinal column. A long... long worm... it kept climbing. An inch more with each thrust. It was going to go right up her neck... up into her...

"It's... it's going in my head... it's... aaaaahhhnnnnoo... no, no... wait....nnnuuuuggh..." it had broken through. The tendril in her spine had forced its way into her brainspace. She could feel it pushing through her soft, tender grey matter. It was spreading out. Dividing itself into two and smoothly spreading its black roots through her mind soil.

"Ahaha, I made this bitch piss herself..." Rarity hadn't noticed that she'd lost bladder control. Her thighs were so numb that she only barely felt the warmth of the stinking yellow stream that ran down her white thighs. The stream mixed itself with the puddle of sweat, cum and her own pussy juices.

Her thoughts were all slipping away from her. She should be panicking but instead felt eerily calm.

"Fuck, what a disgusting slut. Can't believe I used to respect you, Rarity."

I am a slut... the words echoed within her then vanished down the dark hole in her head. What was happening? It was all getting so blurry. Her head hurt.

"Yeah, just a useless cumdumpster. She's not 'rare' at all."

Cumdumpster... is that? Was that my name? What's my... name? Her mouth opened to say something. A strand of saliva ran off her bottom lip.

"Ahaha, look at this bitch's face! She looks retarded! Did we seriously fuck her brains out or something?"

Bitch. I am a bitch. Her eyes were vacant, rolled up in her head slightly. It was all shutting down. She felt like a computer that had overheated and crashed. Spiraling down into blackness.

"Is she even awake?"

"Who cares? Keep going. She'll make a fine fuck doll, even unconscious."

Fuck doll. Her body was limp. The smallest of flickers occurred in her head as he drove in deep and pumped another fresh load inside. Then only darkness as the next dog lined up to t

Author's Notes:

Sorry this took so long to write. Tried to do it twice but it didn't go very well and had to rewrite from scratch. Still not very pleased with it but what the hell. As usual feel free to make requests about who's next and how.