Late Fees & Damaged Books.

by Kio_Rampas

Rating: mature
Tags: Twilight Sparkle, My Little Pony: Friendship is Magic, Romance, Rainbow Dash, Sex
Length: 4489

Twilight Sparkle magically dominates Rainbow Dash.

This is clop. Clichéd story, I know, but what do you expect, I wrote this while a lot of my blood was elsewhere engaged.

Also, the Romance tag is used in its loosest possible sense.

Published 2013-04-21 18:20:01 UTC
Last updated 2014-11-11 21:41:20 UTC

Chapter One

Rainbow Dash's wings unfurled with a whump noise as the air caught her and pulled her safely out of her dive. She glided upwards gracefully for a fraction of a second before landing. She grinned to herself with the satisfaction of a perfectly executed landing, and gave herself a moment to stretch before knocking on the door to Twilight's library treehouse.

"Hey, Twilight, I'm here, so let's get this over with, okay?" She called out, and when she got no response, pushed against the thick wooden door. It had been left unlocked, which she took as an invitation to come in and make herself at home.

"Hellooo, Twilight! I haven't got all day here." Rainbow's patience was wearing thin, and being called here on some barely explained pretext was inconvenient enough without being kept waiting as well.

"Ah, great, you're here," gushed Twilight, popping her head over the rim of her second floor bedroom. "Just take a seat, I'll be right there, okay?"

"Yeah, fine, whatever." Rainbow sighed and flopped unceremoniously down on a couch of the sort favoured by Rarity.

She clopped her hooves together idly as sounds of an extremely bookish nature filtered through from the mezzanine. They didn't sound like her sort of books either, these sounded distinctly like the sort of monolithic grimoires that her friend devoured with glee.

She sighed again, louder this time, hoping that some sign of her irritation would filter through to Twilight and get her to hurry up with whatever she wanted her for.
Rainbow Dash felt hot, uncomfortable, and inexplicably itchy, and the waiting was doing nothing to improve her mood.

"Come ooon, Twilight! Get a move on!" She whined.
"Coming!"
"Yeah, well, so's Winter Wrap Up." She muttered under her breath. She reached down and surreptitiously scratched the itch that had been building around her crotch, and recoiled when her hoof came up slick with her own juices.

"What in the...?" She furrowed her brow. She took a quick peek between her hindquarters and found that it was no mere itch, she was dripping wet down there, and she had no idea why.

"Hey, Twilight?" She called out hesitantly, "mind if I use the facilities? I'm... uh... kinda dirty from the landing."

There was no answer but the sound of riffling pages and the occasional thump of a book hitting the floor. Rainbow Dash decided that this was as close to a yes as she was going to get. Hurriedly, she scrambled off the couch and barrelled down the hallway to where the bathroom was.

Locking the door behind her, she sat down on her haunches and prodded gingerly at the damp matted fur between her hind legs. She cursed silently to herself. It had even gotten on her tail. It was the strangest thing, her pussy was tingling and gaped open slightly, just as if she'd been... She blushed, angry at herself. She must have gotten carried away daydreaming or something.

She froze as she heard the door open. She was sure she had locked the door, hadn't she?
She looked round, guilt written all over her face.

"Oh, Rainbow, look at you, you're all wet, let's get you cleaned up." Twilight smiled, and levitated a small fluffy towel. She dabbed at the inside of Rainbow's thighs where drips of moisture had dribbled down, while the mortified girl stood transfixed. The towel rubbed ever so gently upwards along the arch of her hind legs until it reached the apex, where Rainbow gave an involuntary groan as her legs trembled. She bit her lip, humiliated, but her friend only smiled.

She turned and trotted back out into the main hall and called back, "Let's get started, okay? This is kind of a tricky spell, but I think you'll like it!"

Dash shook her head, trying to dislodge some of the fog of arousal that was clouding her thoughts, and then followed Twilight.

Throughout the next few hours she began to wonder if she'd just imagined how strangely her friend had been acting, and focused instead on the invisible armour spell Twilight was testing out. She'd been right in thinking the spell would appeal to Rainbow Dash's headstrong nature, as the spell created a magical barrier that repelled anything that came close, and even stopped her hurting herself when she fell. She grinned to herself, thinking of the stunts she'd be able to pull off now that she wouldn't have to worry about breaking a wing.

The feeling of invincibility only subsided midway through the flight home as she felt herself start to tingle again. She pulled up into a hover, and sure enough she was mysteriously dripping wet again.
"Oh come on, you've gotta be kidding me!"
She took off at top speed, the last thing she needed right now was to run into anyone while she was like this. She blinked back tears as the wind whipped past her and before she knew it she was back in her own little castle in the clouds.

The tingling was almost unbearable by now, but now that she was home she was looking forward to dealing with her little predicament. She felt something drip down her thigh and caught sight of the stained and slick fur running all down her hind legs.

"Heh, I could probably do with a bath too." She reached down between her legs and frowned. She couldn't feel anything. She inspected her hoof, but couldn't find any signs that it had made contact. "Weird," she muttered.

She trotted over to one of the larger mirrors in her bathroom and craned her neck around to see. She prodded gingerly at herself, but again, she couldn't feel anything other than the heat radiating from her behind. She prodded again, more forcefully, but her hoof seemed to glide off at a tangent without ever getting closer than a few millimetres.

Her eyes went wide with sudden realisation, Twilight's armour spell. She must have forgotten to remove the shielding from everywhere on her body. She would have to fly back and get her to disable the rest of it. She cursed under her breath, she knew too well that she wouldn't be able to fly with this distraction.

She felt a sinking feeling in her stomach as the heat between her legs intensified and her whole body gave a little shudder that started right at her swollen, aching clitoris and swept all the way down her legs and up to the very tips of her wings. Her tail had lifted invitingly, a reflexive response to her mental state.

Her hind legs buckled and her rump slid inelegantly to the fluffy surface. It tickled ever so slightly, and almost before she realised what she was doing she had started to scoot her rear end along the floor. Her little breathy moans gave way to sobs of frustration, as the little tendrils of cloud just weren't quite enough to send her over the edge of the orgasm that just wouldn't come.

She felt then, just as she thought she would go mad, the slightest sensation on her nether lips, as though some force nipped at them, rubbed along them teased them apart, spreading them. Rainbow Dash shut her eyes tight and bit her lip in concentration. She was being offered salvation and she was damned if she'd let this sensation go to waste. The force tugged ever so slightly at the top of her slit, and obediently she raised her ass on legs that quivered and shook in tension, following the sensation upwards. She was rewarded when a slim tendril slipped inside her, and she knew that even if she had wanted to stop it there would have been no point resisting. It squirmed and wriggled inside her until, with a gasp and a shudder, it had found the spot it was looking for. She felt powerless, puppet-like, but this presence knew just what it was doing, and after what seemed an eternity of gentle massaging and rubbing, she buried her face in the cloud and screamed as waves of ecstasy racked her body, sending heat and pure unbridled pleasure through every nerve.

Her hind legs finally gave out and she flopped to the floor in a haze of post-orgasmic bliss. A dopey smile spread across her features as she curled up and fell asleep right there on her bathroom floor.

Chapter Two

"Come on, sleepyhead, you're a mess, and you and I have so much to do," came Twilight's unnecessarily cheerful voice.

Rainbow Dash murmured in sleepy protest, then as memories of last night filtered through, she jerked wide awake and she leapt straight at Twilight, bowling her over and pinning her to the ground.

"Twilight! You gotta help me! Something went wrong with the spell you cast yesterday and it's going to drive me crazy!" She frowned, "wait, how are you able to walk up here?"

Twilight raised an eyebrow. "The cloud-walking spell? Remember? We all came to cheer you on in Cloudsdale?" Her horn glowed and Rainbow felt herself yanked into the air as her friend got to her feet.

The magical grip floated her backwards out of the bathroom and over to her bed where it gently spread-eagled her and pressed her down into the bed.

"Uh, Twilight?" She struggled to get up, but while the lilac glow surrounding her didn't hurt, it was insistent on her remaining sprawled on the bed.

She looked over her shoulder as she felt the first tugs of a hairbrush being dragged through her tail.

"Twilight, thanks and all, but I really think you should stop."

Twilight sighed and stopped brushing. The magical force disappeared and Rainbow Dash got up a little unsteadily.

"I know you don't really want me to stop. I know about your little fantasies, and I know you're just waiting for someone to take charge." Twilight's tone was patient, but it had an edge to it that Rainbow had never heard before.

She laughed nervously, "now where did you get a crazy idea like tha-"

"You doodle in the margins of the books you borrow," snapped Twilight with the acid tone common to irked librarians everywhere. "Next time you want to draw filth I suggest an art class. And "mistress" is spelt with three S's, not two."

Rainbow Dash's eyes were wide and fearful, perched atop cheeks roughly the colour of beets. "Please, you can't tell anyone, I'd literally die of embarrassment!"

"Unlikely, but you don't need to worry about that, I'm not telling anyone. No, I have better plans for you, you book-vandalising little slut."

She frowned. "So, you're blackmailing me?"

Twilight laughed, "I don't have to blackmail you, Dash, I won't be making you do anything you don't secretly long to have done to you, or are you forgetting all the fun you had last night?"

"You did that on purpose?! I thought you just messed up that armour spell!"

"Do you need another demonstration?" Twilight's voice was sugary, and as her horn started to glow, Rainbow Dash backed away, protesting weakly before she felt a gentle but firm circular pressure on her clit.

"Haa, oh my gosh," she closed her eyes, then mumbled inaudibly.

"What was that, Dashie?"

"Don't stop."

She felt a swat to her rump. "Manners please, my little slut."

"Don't stop, please."

Twilight's voice turned sing-song as she kept up her slow, sweet torture, "I'm pretty sure you're missing a word there."

"Please don't stop, M-Mistress." Rainbow Dash's voice was as shaky as her legs at that stage.

"Better. Now lie down." Her horn glowed and Rainbow Dash felt herself being pushed gently onto the bed and laid out on her back. She felt a slim tendril of magical force slip up past her labia and swell inside her, filling her up and coaxing little moans from her. It twirled inside her, making her shudder at the sudden stimulation.

The magical intrusion quickly worked up a steady rhythm, making her legs rock back and forth with the motion.

Tendrils of magical force teased at her clitoral hood until the little pink button swelled, then a gentle squeeze as it was rolled and deftly massaged, which, combined with the insistent rhythm of the thick presence filling her up inside her marehood. It was almost too much to bear, her eyes rolled back in her head and her mouth gaped.

"I'm gonna-" Rainbow Dash's ecstatic moan was cut short by a whip crack and a searing line of fire right across the fleshiest part of her well-toned backside, and she gasped as the intensity of the fucking she was getting dialled down to a fraction of what it had been. "No no no no! Please, Twilight, you can't-! You have to-! I was so close-"

"I have to? I can't? Oh dear, is my little fuck toy telling me what to do?" There was the faintest hint of a growl in Twilight's voice as she clambered up on the bed. "I don't think you're getting it, Dashie, see, from now on, you don't get off unless I say so, you don't touch yourself unless I say so, and most importantly, you don't get anything until I'm a hundred percent satisfied. So, if you want to get more than just a taste, you'd better get your little slut mouth to work."

And with that dire pronouncement, she turned to straddle Rainbow Dash, lifted her tail and eased herself back until her hindquarters were barely inches from the flustered pegasus' face. She looked back over her shoulder and gave her a coy smile.

Dash blinked, still in shock, before a gentle magical pressure on the back of her head let her know that Twilight was not about to wait around. She pressed forward, the fuzziness in her head and the fire between her legs overriding any pretence of shyness she may have had. She licked, cautiously at first, then with greater enthusiasm as she saw how Twilight reacted to the touch. The folds were already slick with the purple mare's excitement before Dash even started, but even her inexperienced tongue soon had Twilight dripping and staining the blue fur of her chest.

Twilight pressed back against Rainbow's muzzle and let out an almost inaudible little moan that gave her the private little thrill of a job well done. She redoubled her efforts, focussing on working her tongue deeper inside Twilight's inviting slit. Before too long her efforts were rewarded with another moan of pleasure, and Rainbow Dash found her own pussy was tingling from the satisfaction she was getting out of hearing those little signs that Twilight was in ecstasy.

Twilight panted and pressed back so hard Rainbow Dash's muzzle was almost slipping inside her, her hindquarters quivering as she came. She relaxed, and let out a blissful little sigh.

"Mmmff?!" Her friend's voice was muffled, and the hot air tickled her between the legs.

"What? Oh, right." Twilight sat back up, and Rainbow gasped as her mouth was released from its warm, dripping prison.

"How was that, Twi-, uh, Mistress?"

"Not bad," came Twilight's cool response, only a slight shakiness in her voice betraying her studied nonchalance. "Now, clean me up, I have to go and see if Spike has finished his chores."

"You're leaving?" Rainbow Dash was crestfallen, the aching heat between her legs screaming its frustration in the back of her mind.

"I have places to be, and a long list of things to do. I'm afraid my new little fucktoy is just going to have to take care of herself until I come back."

Rainbow's face was the very picture of devastation, as Twilight hopped off the bed and started to make for the door.

"Please! I'll be your slave forever, just please don't leave me like this, mistress!" she pleaded, throwing herself after Twilight's retreating back.

"Is that so? Forever's a long time, you know." Twilight stopped and turned to face her. "That spell will wear off in about a month unless I undo it. You can't last one month without fondling yourself? You'd rather be my little pet forever?"

"It's not just that, it keeps playing with me, but it never lets me finish, and I can't stop it, and I swear I'll lose my mind if it goes on for another day, never mind another month! Please mistress, have mercy, I'll do anything!"

Twilight smiled a smile that was equal parts cruelty and compassion. "I have to go, but do a good job cleaning me off and I'll give you two minutes without the spell for you to try and finish up. Then take your time and make your decision. A month of torture, or a lifetime as my slave. I'll be back tonight for your answer."

Rainbow Dash nodded eagerly and got straight to work.

Chapter Three

Rainbow Dash wriggled and stretched out luxuriously on her cloud bed. Twilight had been as good as her word, and the armour spell had been left off for just long enough for her to finish herself off with a hoof, all the while her mouth and her nostrils had been full of the musky damp scent of her friend's juices. She knew that pretty soon she would need a proper bath, but for now she was content just to bask in the warm afterglow of the orgasm she'd been permitted. And after all the teasing and build-up it had been a pretty spectacular one. She was still barely able to move, and every so often a little shiver would make its way from the base of her spine all the way to the very tips of her wings.

A brief exploratory fondle with a hoof confirmed that once again her pussy was off-limits. She sighed. She'd known that it would be, but that still didn't make it any less maddening. She got up and stepped into her shower, letting out a little shriek as cold water hit her from multiple angles at once, then sighed happily as the heating kicked in, and the wet patches all over her coat were erased, and the warmth of the water soaked the tiredness from her muscles.

She soon felt back to her normal self, and as she stepped out and towelled herself off. Just because Twilight had gone nuts didn't mean she had to spend her whole day moping about waiting for her friend to come back to her senses. She preened her feathers as she considered this, and the more she thought, the more the possibility that this was just some elaborate and ill-conceived practical joke that had been taken a bit too far. She'd just have to talk to Twilight about it, somewhere out in the open, and sort it out.

Pleased with herself for having made this deduction, she finished waterproofing her feathers and gave her wings a little stretch before launching herself directly out the front door. She circled in the brisk morning air, a grin spreading across her face at the sight of Ponyville spread out underneath her, with the Everfree forest sprawling around over by Applejack's farm and Canterlot off in the distance. She spotted Pinkie Pie down far below her, frantically waving her down. She knew better than to try and ignore her friend when she was trying to attract her attention, so she went for the dive, wind whistling past her as she dropped, faster and faster, finally pulling out of the dive just in time to catch Pinkie's awed exclamation.

Out of nowhere a big sign with a nine painted in black numerals appeared in her pink hooves. "You lost the point for not having your theme music on." She explained, her tone apologetic.

"I'll remember that for next time, Pinkie. What's up?"

"Twilight invited me over for cupcakes, and I said, why just me? What if we all had some together, and she said sure, so I went to Applejack but she had already eaten and Fluttershy was feeding the rabbits, and Rarity said she had to have a business meeting up at Canterlot over lunch so she can't come either-"

"So it's just you, me and Twilight?" interrupted Rainbow Dash.

"Yup!" Pinkie nodded happily.

"Hey, uh, have you noticed Twilight acting strangely at all? I get the feeling she's playing a practical joke on me, which is weird, right?"

Pinkie shook her head and made an exaggerated "I'm deep in thought" kind of noise. "I think I'd notice if Twilight suddenly started playing pranks, I mean, ponies would talk, right? That isn't like her, not at all." Her expression went from serious to jubilant in the space of a heartbeat, and she continued, "but, like I said, nopony has mentioned anything like that at all, so she must be her normal self. Why, has she been playing pranks on you?"

"Sort of." She looked away self-consciously.

Pinkie's eyes lit up. "Ooh! Twilight got you? What'd she do? Was it the inky binoculars? Whoopee cushion? Was it the one where you get somepony to roll a coin up their face and it leaves a line? Was it the hot sauce cupcake?"

"Uh, yeah, that last one." Rainbow Dash prayed fervently that Pinkie Pie's interrogation was over.

She furrowed her brow and nodded, one prankster acknowledging another's skill. "Well, we have to prank her back! I still have to pick up the cupcakes from the bakery and then we can head straight over. We'll get her, don't worry, Rainbow Dash, just you leave it to Pinkie."

"No, it's okay, you really don't have to, I don't mind, I like hot sauce anyway."

"But she pranked you! We have to prank her back, that's how it works." said Pinkie Pie, slowly, as if explaining to a child something so self-evident that she was surprised it had to be said at all.

"No, really it's fine!"

Pinkie laughed. "You're too nice, Rainbow Dash."

"Yeah, nice, that's me." She laughed nervously.

They made their way to the bakery and then on to Twilight's tree library with no further mention of trying to prank Twilight, much to Rainbow Dash's relief.

She relaxed as Twilight greeted them with a smile and showed them through to where the table was set up. They sat and polished off the box between the three of them, leaving only one last cupcake sitting on the serving dish in front of them.

Rainbow Dash was too full herself for another, so the polite stand-off fell to just Pinkie and Twilight.

“You take it, Twilight, I think if I eat any more, I'll burst!” she giggled.

“Thank you, Pinkie, they really are amazing cupcakes.”

“That one's extra amazing.” And she winked hugely at Rainbow, who instantly began to panic. Twilight seemed to miss this little exchange, and before Rainbow Dash could do anything about it, the cupcake had been snatched up in a little telekinetic field and hovered over to Twilight's mouth.

The first bite had barely been swallowed before her eyes started watering. She waved a hoof frantically in front of her mouth in a vain attempt to cool off her burning lips.

Pinkie burst out laughing as Twilight ran off full-tilt to the kitchen, sticking her head straight into a bucket of water. Rainbow allowed herself a quiet chuckle as well, the look on Twilight's face as she bit into the cupcake had been too funny, and Pinkie's laughter was just too infectious not to join in.

Twilight returned a few minutes later, a sheepish smile on her face. “Good one, girls, you really got me with that one.”
The rest of the afternoon was passed amicably enough, the three swapping stories and jokes as minutes turned to hours, and almost before they'd noticed the afternoon was early evening.

“I'd better get back to the Cakes, they'll need a hoof with getting the bread ready.” She stood up and stretched a little. See ya tomorrow, Twilight, so long Rainbow Dash!”

As Pinkie trotted out the door with her usual bouncy gait, Rainbow grinned to herself and got up to leave.

“So,” Twilight smiled, “have you got an answer for me, little miss prankster?”

“Oh, look, I told her not to, but she got the idea that you were pranking me and you know how Pinkie gets...”

“And where would she get an idea like that?” Twilight's voice was quiet.

“I, uh- listen, Twilight this is all just-”

“Just what, Rainbow?” Twilight smiled sweetly.

The pegasus was tongue-tied, nothing she could think of sounded right.

“Never mind all that,” Twilight continued, “we can deal with your bad behaviour after you give me your answer.”

“My, uh, answer?” Rainbow Dash stalled for time. Her friend's ultimatum had almost completely slipped her mind with all the fun they'd been having all afternoon.

“You know,” Twilight's tone was playful as she advanced on the increasingly anxious pegasus, “our little arrangement. You haven't forgotten? Do you need a reminder?”

“No, I remember.” she swallowed, the noise strangely loud in the silence of the library.

“So, let's hear it. A month of torment, or a lifetime of happiness as my plaything?” Her horn glowed, and the lightest of touches stroked down between Rainbow Dash's hindquarters.

She shuddered at the touch, and felt her tail lift, a slight breeze tickling her as the magical presence stroked up and down along her folds. “Y-yes, please Mistress! I can't take this any more, just take me!” Her pleas all came out in one breathless rush, her eyes pressed shut and a burning in her cheeks, more turned on and embarrassed than she'd ever been in her life.

The magical touch receded, and she groaned, feeling keenly its absence. “Mistress?”

“I'm glad you chose right, I was a little worried that you weren't into this, and that I'd made some sort of mistake about you.” Twilight smiled wanly, and her horn flickered into life again, the resulting tendrils of magic brushing all over Rainbow's body.

Twilight was beaming at her. “I'm so glad. Stay right there, I've got a little present for you.” She trotted away with a spring in her step, returning barely ten seconds later with a small box. She opened it, and Rainbow felt herself being straightened up and her mane brushed lightly to one side as a little band of leather with a silvery medallion looped around her neck, fastening around the back with a barely audible click.

“It has your name and your cutie mark engraved on it,” Twilight informed her, smiling happily as she straightened Dash's mane back into place, and adjusted the collar so the little circle of silver caught the light.
“Isn't this a little too much?”

“It's magic,” answered Twilight matter-of-factly “Nopony else will even notice it unless you mention it to them. Now, stop sulking, I still haven't decided how to punish you for that little prank earlier.”

Chapter Four

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