Sensitive Much

Rainbow Dash smirked as she watched her fellow prankster slide off her trench coat, revealing the goods. All around them, the newly established library of Castle Friendship was waking up as the book-humping eggheads started entering en-mass. The soft quiet of papers shuffling, ponies whispering and idiots already bugging Spike for their any new copies of the latest releases was like music to her ears.

A quiet library was an unpranked library...

And a unpranked library was a perfect place to have some fun.

These bookworms wouldn't know what hit them. Especially, when this was their eighth time getting away with it.

“Like this, Dashie?” Pinkie Pie giggled, pulling on the straps of her transparent tank top. “Doesn't this make me look like a lucky lady to take home.” Two tiny hearts attached to creamy pink string held up her large knockers, the strings tightly clinging into her sides as the knots threatened to unravel with every bounce. Her skimpy clad breasts bobbed with every breath, the perky nipples sticking out like a pair of bull-eyes. The look was complete with a tight hot-pink mini-skirt that flashed Pinkie's white panties as she swayed side to side.

“Pinkie, we've talked about this.” Dash sighed, pretending to be annoyed. She leaned against the bookshelf that hid them from view, her big hoodie falling over her face. Pinkie just wanted to tempt her, didn't she? “You aren't supposed to be wearing underwear. It ruins the effect.”

Unlike her well-dressed friend, Dash had opted to look as discrete as possible.

Her baggy hoodie kept her slender form and distinctive rainbow hair hidden as she wore borrowed black slacks that clung to her hips. Fluttershy's stuff never fit her right. Either they were too tight or too big, leading to some bad times of pants dropping to her ankles while she was in flight or showing all the angles of her crotch, sweat making it all the more awkward. Dash had half the mind to go panty-less herself and take off her underwear for some comfort, the stringy red g-string she was sporting wasn't helping the fabric pressing into her lower body.

It felt kinda good but somebody had to be the responsible one here.

“But I like my panties.” Pinkie said, pouting like this was the first time they had this conversation. Dash rolled her eyes, resisting the urge to make this into a real argument. If Pinkie wanted to fool around, she should've asked before they snuck in.

“We have to get in position soon. Do you want us to get caught?” Dash hissed as Pinkie went along with her act. The pink mare turned around, pushing her poor excuse of a skirt up as she flashed Dash for the umpteenth times since they started doing this. She wiggled her bubble-shaped ass, tugging on her panties as the cotton whites slid between her glossy ass cheeks.

“I think-” Pinkie said, looking like an idiot as she threw her eyes at Dash with a naughty grin. “-it would make any nerd's day just to have a peek. They'd blow their load at just the sight of it. Why show them everything, when you can get them to spew everywhere, Dashie? Do panties not make the...” Her voice dropped into a leer. “-pussy?”

Dash snorted, not bothering with a response.

While Pinkie had been wasting prep time, Dash had been glancing around for any signs of a certain princess entering the library. Twilight had grown aware that somebody was sending her male readers and a few females into cumming onto the floor or walking out with stiffies. In response, she had created a gang of book knights that roamed the Adult Only sections. Carrying paddles and buckets of ice cold water. That's right, Twilight Sparkle was a prude and she deserved to have her clean library to be pranked twice as hard.

The first few pranks were for kicks but now, Dash was fighting for a sexual revolution.

Though Pinkie and Dash hadn't been caught, yet, and mostly likely never if Pinkie could get it under control, they'd seen the handy work of the book knights. Grabbing kinky couples and spritzing them in the heat of fucking in a semi-public place was too cruel. Then they would take photos, blackmailing the ponies into either wearing charity belts while browsing or be monitored like foals by a personal book knight.

But did Pinkie Pie care about the cause?

Nope.

But again, somebody had to be the responsible one.

There couldn't be any more pranks if they got banned.

The number one pranking duo had gotten in early and as Twilight's personal friends, they did have few perks to take advantage of. The ability to say, “Twilight says it's cool.” If a book knight caught them, the two of them could take that loud mouth down. But their reign of terror would end then and there. There was difference between ponies getting busy between autobiographies and a pair of perverts causing sexy incidents.

Dash pulled a book out and looked at the rest of the wide room. In front of her, there was a maze of bookcases and tables. They chose the best place to get set up without getting caught in by any early book bums.

No book knight spotted.

“Well, Dashie?” Pinkie Pie crooned, tugging on her panties even harder as she wasted precious time. “If you don't like it-” She dragged out each syllable, a laugh hidden somewhere in her voice. She never took anything seriously, did she? “-Maybe, you should do something about it?”

Fine.

Her partner in crime could have her stupid fun.

“I agree with you, Pinkie.” Dash said, walking around the mare to look into her eyes directly. With a low and sultry voice, she whispered the trigger words they'd agreed on. “But bimbos don't wear underwear.”

The effect was instant.

The pink mare seemed to relax, limbs slumping, her voice growing monotone. “But I'm a bimbo. The sluttiest bimbo you could ever find.” Her blue eyes grew misty, the light in them muted as the slut inside fought to get out.

Dash licked her teeth, her lips curving into a ugly smile. “I said, bimbos don't wear underwear.” Pinkie nodded mindlessly, grabbing the hem of her panties as she went to obey the command. “Wait.” Dash said, stepping away as she checked both ends of their spot. It was still safe. “I think you need some reminding as to what a bimbo is.”

“Yes, Mistress Prism.”

Dash smiled harder, laughing on the inside on how cheesy Pinkie sounded.

“What's your name?”

“I'm... Bimbo.”

“And what's the only thing that you should care about?”

The slut purred, “Pleasing you.” Naked lust bright in her face as she clasped her hands together. Eager for anything that might happen. Dash almost liked Pinkie better this way. Almost.

“That's my girl but Pinkie disobeyed me.”

Dash looked down on her hands, then moved her eyes over Bimbo's sensual form. The slut squirmed under her gaze, waiting for orders while licking her lips.

“That means I have to punish you instead. Do you want your punishment?”

“Give it to me, Mistress.”

“Touch yourself for me.” The slut stroked her underwear, rubbing up and down on her clit. Her panties grew wet, her fingers growing faster. “That's what I like to see, Bimbo. Get on the floor, spread your legs.” Bimbo laid down on the crystal floor, her legs cocked open as she went to town on herself.

“Moan for me but not too loud, we don't want everyone to find out how slutty you are.”

Bimbo let out moans and gasps, her knees buckling. Juice trickled out of her panties, making a small puddle between her glistening hips. Dash admired her work, enjoying how easy it was to make a pony undone with a few words and a easy to learn book on hypnotism.

“Take off your panties, they're too dirty for you to use now.” The slut flung them, exposing her swollen clit and dripping folds. Dash could end this now. She got what she wanted but it would be a shame to leave Bimbo in that state.

“On your knees like a dog.” Bimbo got onto her knees, her ass perched in the air. “There's a cock prodding your pussy. A large one that's so big that you can't possibly take in but we know you can. You're a good slut that dines on cock for breakfast. He's not anyone special.”

The slut moaned, pushing her hips back as she sunk herself on the imaginary dick.

“Mmh, that's good but that stallion doesn't treat you nice. He fucks rough. Hard. You can barely stop from crying out as he fucks you into silence.”

Pinkie thrusted, her pussy clenching as she fucked herself silly. Her body arched as her hips went off, jiggling her fat ass in the air. She moaned and huffed, dropping her head to rest on the ground as her thrusts grew faster.

While watching the action, Dash leaned over and caressed Bimbo's full cheeks. Laying her right hand flat against the ass, she pinched the skin and made a red mark.

Bimbo honestly didn't do anything wrong. It was Pinkie Pie who egged her on and wore the underwear on purpose just so she could 'wake' up feeling the pleasant aftereffects of an 'punishment'.

Not this time, Pinkie.

Dash lifted her hand and smacked, leaving a angry-looking hand print on the plump ass. Have fun trying to sit tomorrow, Pinkie. She moved her hand to the next one and smacked again, the sound of flesh ringing out against the grunts and moans from Bimbo.

“And then he hits that perfect spot and you cum.”

Bimbo barely held back a yelp as she climaxed on the spot, pussy juice gushing down her legs as she bonelessly collapsed.

“What a good slut you are, Bimbo.” Dash praised, her hands running down Bimbo's back and ending at her hips. “You take cock like a champ. I'm very pleased.”

“Of course, I can, Mistress.” The slut said, turning to face Dash. “But I'm still so horny.”

And that when Dash decided to look up at the shadow had that fallen over them.

“Don't worry, we'll fix that.” Twilight said, her blank face staring down at them, as she held her weapons of mass destruction: A spray-bottle and a wide wooden paddle. “We can't have horny ponies inside of my library.” She chuckled, pulling her paddle from the holster on her back.

Dash paled, eyes glued to the paddle and what it might do to her behind. “It's not what it looks like.” She grabbed onto Bimbo's shoulders and shook her. “Pinkie, wake your stupid ass up, we have a problem here. Twilight! Remember Twilight? You're the only one that can do the trick. ”

“Ooh mistress, shake me more!” Bimbo moaned back, pulling Dash into her slick and slimy embrace.  “Pinkie's not here. How may I help you, stranger?”

Twilight held up a hand. “On your knees, both of you. Dash, strip your bottom.”

“But- But-”

“Indeed, your butts.” Twilight twirled the paddle, swinging a few experimental swings in the air. “I can't give my friends special treatment. That would be unfair but how's this?” She stopped swinging, moving the paddle to rest against her shoulder. “I'm willing to hear you out as I give you ten swats each. And please, tell me something that wouldn't have you banned by the end of your... discipline.”

“Uh...” Dash gulped, tugging down her slacks and underwear. “Do what she says, Pinkie. I mean, Bimbo.” The cool air felt nice against her ass, drying the pearls of sweat on her thighs. Her pussy was slightly wet from all the fun of watching Bimbo but she hoped Twilight wouldn't noticed. Bimbo's looked worse, glittering under the light of the library. Poor Pinkie.

“Well...?” Twilight asked, the paddle coming to rub against Dash's right cheek. “Is there anything, you want to say?”

“It's not against the law to climax, Twilight!” Dash said, making fists as she held her head low. “It's the Adults Only section for a reason! We were just having some fun and it's not we actually had real sex in your library.”

Twilight hummed, withholding her judgment as she made circles in Dash's skin with the top of her paddle. Dash trembled, trying to brace herself for the first blow. But then she heard the fizzle of magic being cast. Dash blinked, seeing a purple shield expand over their spot in the aisle. The shield flexed and then became transparent, warping the images outside.

“Then what was that?” The alicorn asked, “It sounded like Pinkie Pie was being... was experiencing intercourse with a stallion. Of course, it might have been you with a strap-on. It definitely smells like you two have been up to no good.”

“Just uh...” Dash's voice cracked as the paddle slipped slower, sliding between her folds with a loud slurpy squelch. The low moan bursted out of her as the paddle explored everywhere. The paddle seemed to be angled to make a direct line with her clit and her hole, pressing and releasing pressure with every passing second. She shifted her hips, trying not to grind on it. The texture felt so good, caressing her pussy. “Err...”

Then the paddle was removed, its wood sliding up her thigh and rubbing the fluid off on her skin. Is this why anyone Twilight caught kept silent on what exactly she did? Nobody wanted to be caught by Twilight and Dash had pretty good idea as to why. If it had been anyone else, Dash might have been turned on but Twilight felt kinda scary with her looming and silent pauses and of course, the fucking paddle.

“I'm listening. Go on.”

Dash glanced over to Bimbo, the empty-eyed slut waiting for more punishment. Dash frowned, Pinkie wasn't going to get out of this. They should suffer together.

“Hypnotism. Me and Pinkie were fooling around with hypnotism and when people are under, they like a lot of kinky shit. Pinkie has an exhibitionism fetish but she would never act it without some suggestive mind control. And uh... watching ponies blow their loads is my thing. It was her idea and we decided to make a joke out of it... It's-” The paddle was slowly returning to her pussy, she felt it hover, threatening to return between her lower lips.

“Funny! We thought it was funny.” Dash babbled, inching herself away. The presence of the paddle seemed to follow, poking her cheeks as it was dragged ever so close to her pussy. “We were pranking ponies, Twilight! It was us! We're sorry! We won't ever do it again.”

Silence and then...

“I don't believe in hypnotism. That sounds so unscientific.” Cold water was spritzed onto both of her cheeks and then the paddle swung. Dash howled, her cry running for the hills as Twilight swung again. Her ass ached from the stimulation, pain and a little pleasure making her quake in place. “So, you're telling me that the two of you thought my library-”

Another swing. Dash gasped, the paddle moved to hitting the space between her legs. The sensation went through her thighs, waking up her clit. Juices dripped down her legs and Twilight rubbed her paddle in it, making it slick with the natural lube. She swung again, the swat making a thundering clap against her flushed flesh.

“-Was the perfect place to make smelly messes-” The paddle was jammed between her legs with a hard thrust, Dash let out a cry. Twilight dragged the paddle slowly through her lower lips, rubbing against the moist folds. Then she swung again, this hit making Dash arch for mercy. “-Disrupt readers who came for written erotica, not visual smut-”

Two more hits had Dash gasping for breath. Her clit was painfully hard as tears formed in the corner of her eyes. Shameless, she widened her legs. Letting Twilight see all she had done. “You're making a mess right here! The only one.” She puffed, wagging her bright red ass. “I don't feel bad at all.”

“You don't, do you?” The paddle was pulled away from where it rested on her rump. Dash looked behind her, watching as Twilight turned her attention to Bimbo. “I like ponies who know what they have done wrong. After all, what's the point in punishing them if they can't comprehend that libraries aren't make-out points?”

“But you can't leave me like this.” Dash blurted out, instantly regretting what she said. “You only spanked me seven times.” She said quickly, her voice ending in a needy whisper. “You have three more.”

Twilight was silent, sliding the paddle between Bimbos' legs before moving for her ass. She pulled back her arm as if winding up for a wide swing. Dash stared in envy as she imagined what that swat might have felt like before Twilight strangely stopped herself. Instead, the alicorn gave gentle-looking light pats to Bimbo's butt. Seven of them before she backed away.

It couldn't be over.

Just like that?

Twilight was such a prude!

Her horn glowed, the light spreading over the paddle. The magic cleaning the wood.

“If you want your last three, earn them.” Twilight said, her voice sounding bored as she lifted her spell. “Prove to me that your hypnotism is real and make me spank you.” She said with a laugh as she walked passed them. “Come by around closing time. If it works, I imagine that you could get me to do anything under the sun.”

“Are you serious!”

Twilight glanced behind, a sneer on her lips. “Not really. I need time to think a new form of discipline. But I might just ban you and save myself the trouble. So many choices.” Twilight paused, her sneer flattening out. “And uh... the bathroom is on your left. We've restocked on paper towels so don't waste any rolls of toilet paper. ”

And at those words, an ocean of cold freezing water rained from the ceiling. The books, charmed to be protected from the waves of water, smacked Dash in the face as she and Pinkie were swept away.

“You'll pay for this, Twilight!”