Rainbow Dash stood at attention in Rarity's bedroom. All her hooves were planted firmly on the floor, spaced a little distance apart to have them stretch and show off the lean muscles of her legs. Back straight, eyes forward, wings tucked to her sides, head held high, Rainbow was as rigid as one of her dressforms. A bright red ribbon bound her tail tight and high, revealing her hidden sex to Rarity's gaze as she paced behind her.
In the grip of her magic she carried a crop, black and thin and supple. She gave it an experimental flick, and delighted at the way Rainbow's ears twitched as it cut through the air.
"Do you know why we're here, Rainbow?" she asked, her voice cool and formal. Her hooves clopped on the wooden floor.
"I'm being punished."
Rarity couldn't see Rainbow's face, but she could hear her grin. She was so cocky, so devil-may-care, even in the pose Rarity had commanded her to hold.
She couldn't wait to get that grin off her face.
"Yes," she said, running the tip of the crop lightly over Rainbow's taut posterior, "but do you know why you are being punished?"
"I, um..."
She would have remembered eventually, formulated an answer that would have been satisfactory but also simple, but it wouldn't have cut to the heart of the matter. That she wasn't responding immediately, crisp and neat like a sans serif font, was part of the reason Rarity was here with the crop.
"You're being punished," Rarity interrupted, "because the last time we were being intimate, you were unable to control your dirty mouth."
She leaned close to Rainbow's ear and whispered to her, her words soft like fine silk.
"You were needlessly vulgar, and shouting so loud it's a wonder you didn't bring half of Ponyville to my door wondering what all the commotion was."
Now she could see Rainbow grin. Her eyes never wavered, but there was definitely a smirk on her face.
"I don't remember you complaining then," she said.
"Be that as it may," Rarity said, tapping the crop on Rainbow's toned flank, "this is why you are being punished."
She circled back around Rainbow, taking another look between her legs.
"Are you ready?" she asked.
"Sure." Nonchalant. Like she'd asked if they should go for a stroll before having dinner.
"Oh, I think we can do a little better than that." Rarity pressed the tip of the crop between Rainbow's legs, and had to restrain herself from letting slip a giggle when Rainbow jumped. "Since you are being punished, it's only fitting that you address me correctly. Wouldn't you agree?" she asked sweetly.
She watched Rainbow wrestle with the request from behind. She did not, however, hear her sigh, which was an improvement.
"Yes..." she mumbled. "...Mistress."
"I'm sorry, I didn't quite catch that."
"Yes, mistress." Louder. A speaking level. More confidence, more conviction. Good.
"That's better," Rarity said. "Now, are you ready to begin?"
"Yes, mistress," Rainbow repeated.
The crop whistled through the air, landing squarely on Rainbow's exposed backside. Although the reddening mark and Rainbow's feline hiss of pain were quite satisfying, there was still something missing.
Fortunately, Rarity knew just what that something was.
"I think we should be keeping track of the strokes," she told her. "Wouldn't want to lose count, would we?"
In the silence of the room, she heard Rainbow swallow. "One, mistress," she said.
"Of how many, again? Remind me."
"Five. Mis--"
Rarity hadn't known she was going to swing the crop until it was moving. It cracked against Rainbow's firm rump, neatly on the first glowing mark.
"Ow, fuck!" Rainbow exclaimed. "I wasn't ready!"
Immediately she realized her mistake and immediately Rarity was in front of her, staring in to her eyes.
Rainbow regretted slipping up, that was plain to see. Some of that cockiness was gone. Maybe there was a little bit of fear. Not quite, though -- perhaps just some uncertainly about what Rarity would do next. She wasn't mad, though. Oh, no, she knew just how to handle this.
"This," she said, gripping Rainbow's muzzle with her hoof, "is just what I was talking about."
They were face to face, noses nearly touching. Rarity almost wanted to kiss her, steal a kiss simply because she could. But there would be time for that later.
"That dirty mouth, Rainbow. You simply must learn to keep it under control. And I don't think a meager five strokes will be enough of a reminder. I think perhaps..."
She studied Rainbow's eyes darting back and forth, waiting for what would come next.
"...Another five, would you say is fair?"
Rainbow's eyes widened. They had never done this many before with the crop. Not at once.
"Plus one extra," Rarity finished, "for forgetting to address your mistress correctly."
She could see Rainbow wanting to fight it, wanting to protest and rebel and argue over how unfair it was. She hadn't said anything, yet, but Rarity could sense it in her. So she decided to give her a push. Just a little.
"Unless," she said softly, letting her hoof drop from Rainbow's muzzle, "you don't think you can handle it."
Those were the magic words. A challenge Rainbow Dash wouldn't rise to? Such a thing didn't exist.
"No," Rainbow said, the steel returned to her eyes, "I can take it. Mistress."
"Good." Rarity smiled at her. "Are you ready?"
Rainbow just nodded.
Not breaking her gaze with her, Rarity brought the crop down a third time. She watched Rainbow wince, but she never closed her eyes. She sucked in a deep breath, swallowing the burn and the sting of the crop. Watching her like this, fighting to rise above her body telling her no, stop, turn back, determined like she was focused on winning a race or braving a hurricane, there was little more beautiful. This was Rainbow at her strongest.
"Three, mistress," Rainbow reported.
Rarity strode around her on inspection, looking at the red marks blooming on Rainbow's rump. She tapped the crop on Rainbow's back.
"Keep straight," she told her. "I want you like the dressforms."
Rainbow tightened her stance, and Rarity licked her lips. She imagined cutting and trimming a garment on Rainbow's body while she bade her to stay still, then delivering it to a client with them being none the wiser. An interesting idea. For another day, perhaps.
"Red is a good color for you," Rarity said, looking from the marks from the crop to Rainbow's swollen marehood. "You're awfully red back here, Rainbow. In fact..."
She let the crop do its work before completing her thought. "F-four, mistress," Rainbow said.
"...If I didn't know better," Rarity continued, "I would say you were enjoying your punishment."
She pressed the tip of the crop against Rainbow's folds, eliciting a groan. Marching to where Rainbow could see, she made quite a show of examining how the tip came away slick and wet.
"See," she said, floating the crop right before Rainbow's face. "You've gone and made my nice crop all dirty. Clean it, please."
As Rainbow diligently licked her juices from the crop, Rarity considered the best angle to take with her lecture. She could of course just watch Rainbow, which would have been wonderful in itself, her eyes bright and set on her task, her face eager and wanting to do a good job for her mistress. But something about the punishment called for a more... verbal encounter. That was what had brought them to this point, after all.
"Perhaps I should be punishing you in a different manner," she idly mused. "Make you accompany me around Ponyville in a dainty outfit. Perhaps one that compliments the nice shade of pink on your backside."
Rainbow, her tongue on the tip of the crop, said nothing. Rarity could sense her resentment of this idea, however.
"I could forbid you from climax for a week," she continued. She gave Rainbow a wicked smile. "That would be quite the struggle, I imagine."
"How would you stop me?" Rainbow asked. "You can't follow me everywhere." She almost forgot, but hastily added: "Mistress."
Rarity let it slide. "I'd keep you here," she said, "watching you like a hawk to make sure you weren't rubbing up against any of my nice furniture while I wasn't looking. I'd have to keep you restrained at night, of course. Perhaps with your hooves tied behind my bedpost. It wouldn't be an easy week."
She stepped slowly around Rainbow, running a hoof along her side.
"Because it would be such fun to tease you. Push you right to the edge..."
Her hoof brushed against Rainbow's vulva, warm and wet and wanting. Rainbow trembled at her touch.
"...And just stop," she said, setting her hoof on the floor. "Why, I simply wouldn't be able to control myself."
She gave a little laugh.
"But you would have to."
Coming back around to see Rainbow's face, Rarity noted that the little note of fear had crept back into her. Goodness, she must have been convincing. Well, that was what happened when one really let the role they were playing take over.
She put on a big theatrical frown, feigning deep deep concern at Rainbow's dilemma. "But you would much rather me smack you with my crop, wouldn't you?" The tip of the crop was now coated in Rainbow's saliva; Rarity pulled it away from her and made a show of inspecting it for cleanliness. "Because you like this punishment, isn't that so?"
Rainbow took a deep breath. Her cheeks were almost the same color as her stinging flank. "...Y-yes, mistress," she said in a tiny voice.
"And because you crave being punished so much, because you want--"
Thwack! "Five, mistress!"
"--To be disciplined, do you know what that makes you, Rainbow?"
She leaned in close, feeling Rainbow's shaky breath on her muzzle.
"That makes you dirty, Rainbow," she whispered in her ear.
Rainbow's breathing came quick and fast, like a frightened bird. She was so tense. So excited.
"It makes you a dirty little filly," Rarity cooed, tracing the tip of the crop over the curve of Rainbow's pert rump, "a dirty, filthy, brazen, wanton slut who deserves to be punished."
Rainbow shuddered against her. She wasn't quite holding her stance correctly. Rarity, again, elected to be a good mistress and ignored it.
"Is that right, Rainbow?" she asked, her words hot in Rainbow's ear. "Do you deserve to be punished?"
"Y-yes, mistress..." she managed, her voice quavery and uneven.
Rarity let the crop sing. ("Si-ix, mistress.")
"Yes what?" she asked, her tone all honey and sugar.
"Yes," Rainbow said. She swallowed. "I deserve to be punished. I need to be punished, mistress."
The crop flew again, and Rarity looked into Rainbow's watering eyes as she counted for her seven, mistress.
"Tell me," she said, encouraging Rainbow with her eyes, giving her something to focus on, being her guiding light. "Tell me why you need this punishment."
"Because I'm dirty," Rainbow said, her voice regaining some of its strength. "Because I'm a dirty little filly. Eight, mistress!"
"Beg me," Rarity commanded her, caressing her burning cheek.
"Please, punish me, mistress," Rainbow pleaded.
Her eyes never wavered. Her breathing was tight and controlled. So ready, so willing to please, so desperate to do a good job.
Rarity obliged and punished her. "Eight, mistress!"
"Again," she said, her voice smooth and sweet as her touches.
"Punish me, mistress!" Rainbow shouted, and the crop flew. "Nine, mistress!"
"Tell me what you are," Rarity asked of her.
"I'm a dirty little filly who needs to be punished, mistress! Ten, mistress!"
"Just one more," Rarity murmured, "so tell me what you really are."
Rainbow took a deep ragged breath. "I'm a dirty, nasty filly," she cried, "a slut begging for it with her tail in the air, a filthy little pet who wants her mistress to make her behave with the crop!"
The last stroke fell, punctuating Rainbow's strained words.
"El... eleven, mistress," she finished.
Rarity kissed her, hard and fierce. She let the crop fall from her grasp; they were done with it for tonight. She kissed her cheeks and tasted the salt of her tears, and she stroked her muzzle and held her as close as she could while Rainbow continued, diligently, to try to keep her pose without letting her legs buckle under her.
"You did so good," Rarity whispered to her through kisses. "I'm so, so proud of you."
"Thank you," Rainbow said, letting herself be kissed, letting herself be held, "thank you, mistress."
Rarity pulled away from her, though she could have continued to kiss and comfort Rainbow all night. She saw she too was proud of herself, proud that she made it through without crying off. She was so strong, so unbreakable, and Rarity loved it.
She put a hoof on Rainbow's puffed chest, able to feel her beating heart. "I have one more thing for you to do," she said.
Rainbow looked puzzled, but curious. Eager, as always.
"Something that will put that dirty tongue of yours to good use," she said with a sultry smile.
Rainbow grinned. Yes, she could probably think of lots of things to do with her tongue.
Rarity backed away and sat on the edge of her bed, spreading her hind legs. "I want you to come here," she said, beckoning with a hoof, "come to your mistress, and lick her cunt."
The shock on Rainbow's face was priceless. Saying the word, most base and vulgar, gave Rarity a sense of power, like it was forbidden in polite company for a good reason. It was coarse, and harsh, and guttural.
It made her loins throb to say it.
"You need to come here," she restated, "and fuck your mistress in her cunt with your errant tongue."
Rainbow walked to her as if in a trance. Rarity stroked her mane, and pushed her head down between her legs.
"I want to feel you all the way inside me," Rarity said.
And Rainbow licked her, and she could.
Rarity hadn't realized just how tense she had been herself, how on edge, as Rainbow's rough tongue sliding into her folds was nearly enough to bring her to climax. She gripped Rainbow's mane and held her head between her thighs and whispered over and over and over, "Fuck me, fuck me, fuck me," relishing the sound of the profanity, the soft opening with the barbed striking finish. She came and Rainbow kept licking her, wanting to keep pleasing her, and Rarity shuddered and sighed and, finally, loosened her grip.
She looked down at Rainbow and at her fierce eyes. Oh, she was definitely proud of herself now, of having reduced Rarity to a quivering mass. She wasn't sure she could get down off the bed without her legs shaking.
But, as always, Rarity had a solution for that.
She pulled Rainbow up to her and kissed her deeply, a naughty thrill running through her as their tongues touched, imagining the places Rainbow's had been just moments ago. With her magic, she untied the ribbon binding Rainbow's tail and let it flutter to the floor. They wouldn't be needing that any more tonight, either.
"I think," Rarity said, guiding Rainbow on to the bed, leaning back and letting her straddle her barrel, "that such hard work and dedication deserves a reward."
Rainbow just grinned and scooted forward, moving her dripping marehood to mere inches from Rarity's muzzle.
"How would you like your reward, Rainbow?" she asked, grazing a hoof over her slit and making her groan with pleasure. "Slow... or fast?" She smiled at her. She knew the answer already.
Rainbow wriggled and ground herself against Rarity's chest. "Fast," she whined breathlessly, her thighs clenching together, "I need to..."
"Mm, I'll take care of you," Rarity told her.
She placed her hooves on Rainbow's cutie marks and took a long lick of her wet folds, relishing the sweet and musky taste and the way Rainbow gasped and panted. She sought the little tangle of nerves that would completely undo Rainbow, lapping inside of her. There was no foreplay, no gentleness; that had come and gone, and now came the time for Rainbow's well-deserved reward. She shouted as she came, an incoherent babble of obscenities that Rarity was perfectly willing to forgive, and she rolled over and slumped on to the bed, her wings extended out behind her, sweat on her brow, her body limp.
Rarity smiled to herself and drew Rainbow close to her, kissing her and stroking her mane and whispering to her, that she was so beautiful, so brave, so strong. She was that, all that and more, but for brief and fleeting moments like right now, she could allow herself to be vulnerable, too. Rainbow snuggled into her, melting into Rarity's embrace, and in that moment the world was still and quiet.
Rainbow twisted in her grasp, craning her head to look at her hindquarters. "Jeez, Rare," she said, "you really did a number on my butt there."
Rarity turned her head back with a guiding hoof and kissed her. "We can use the nice oil on it," she said. "Make it all better."
"Mm, in a bit." She settled back down in Rarity's arms. "I'm comfy right now."
"Me too," Rarity said.
"Hey, Rarity?"
"Yes, dear?"
"...You wouldn't really do that thing where you tie me up and not let me come for a week... would you?"
Rarity kissed her forehead, playing with her mane.
"Only if you want me to," she said with a private smile.
Author's Note
"Talk Dirty to Me" is by quintessential hair metal band Poison, which gives you a rough estimate of how much thought we should all give this story.
