Sextra Credit

by GivingSpider

Rating: mature
Tags: Princess Celestia, Twilight Sparkle, My Little Pony: Friendship is Magic, Romance, Sex
Length: 4804

Twilight and Celestia experiment with a little roleplay in an attempt to grow a little closer and spice up their sex life.

Celestia and Twilight lived as student and teacher long before they were lovers. Now that they've grown together in a rather intimate way; they elect to explore a different sort of Teacher/Student setting.

Shameless clopfic with roleplay, spanking, fantasy blackmail, and humiliation play.

Inspired by the work of RoyalBardofCanterlot

Published 2017-06-28 22:00:05 UTC
Last updated 2017-06-28 22:00:05 UTC

Chapter 1

Characters used here are the property of their respective owners.

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Celestia took a moment to appreciate the view of the room. She rarely had opportunities to enjoy being in her private study. Normally she was locked away focusing on matters of the kingdom or taking a quick minute to not have to focus on them. The small room often felt like a cage in which all the power was in the hooves of everypony on the other side of the door. Even the window sometimes seemed to add weight to the chains of duty. She could look downward at Canterlot for as long as she wanted but the elevated view never once gave the slightest illusion of power. The Alicorn served as Monarch of Equestria and the world rarely took breaks from reminding her that as the kingdom belonged to her; she belonged to the kingdom. She quietly sipped some herbal tea and almost laughed to herself. Even if there was absolute power under a crown; it was power she had to share with three other Alicorns.

Another small amount of tea was enjoyed and more time was spent on looking about the familiar room. Her mostly neglected desk was kept tidy and organized. A wide chalkboard on the wall opposite to the window often held scribblings or random attempts at poetry. Today it was blank. The space was reserved for intimate purposes. Celestia took a final sip and used her power to guide the cup to her desk. A window behind her was blocked by heavy curtains that denied looking in or out but the light of the sun was permitted entry. The broad door was secured to the floor by an iron rod just in case the deadbolt wasn’t enough. A soft carpet hid the stone floor and an unlit flambeaux hung over the desk. The old room felt a little more like a cozy place instead of a prison. The quiet space away from the pressures of her title slowly felt more and more serine.

The princess turned her focus on the centerpiece of her little hideaway from the realm. Twilight stood casually, facing the chalkboard. Her mane was in the usual shape but her tail was a little different. Instead of brushed straight and allowed to hang freely; it was lightly secured onto her back with a silk scarf. The supple backside of her former student was fully exposed and Twilight was making no effort to change that. Celestia smiled warmly at their current situation. Twilight had a habit of over examining things and Celestia had a habit of trying to manipulate every situation she found herself involved in. Her urges to control as many aspects of life were a lasting impression left on her from back when Discord was still a threat. It was a complicated mixture to work with. Celestia had deeply rooted reflexes to keep everything in a certain order and Twilight was so willing to accommodate and interpret her will to the absolute; sometimes it took a whole week to her dear companion to do something as simple as write a letter.

Celestia turned her focus away from the lovely bottom in front of her. They quickly found that their relationship could only work if they set aside time to not think too much. She had to minimalize her architectural needs and Twilight had to work more off instinct rather than stopping to analyze her feelings. A little bit of control and calculation was fine but in the early chapter of being intimate; most aspects of their relationship had rapidly turned into more of a series of labors. Their love slowly began to turn into something to be controlled and studied instead of something to experience. Some events and games had to have rules; but things were a little less structured lately. Some days were harder than others but they managed to get back to having more good days than not.

A coy grin came over Celestia as her magic opened a drawer on her desk. She planned on having one of the former.

Twilight remained stationary in front of the chalkboard. The sound of the drawer opening didn’t take her mind off the planned activity. Her lover was a lot of things including mentor and often times her matron; but she was still her lover. She left from under the Sun Princess’ wing some time ago and now was eager to be back under it for different reasons. The younger Alicorn’s power gently gripped a thin piece of white chalk and hovered it between her and the board. She silently admitted to have had similar fantasies while she was a student at the academy. Celestia’s own vision of the setting was fairly amusing. Twilight wasn’t sure if she would share her mate’s enthusiasm but was willing to try it at least once. She lightly bit on her lower lip as anticipation mounted the way Celestia sometimes mounted her: slowly.

The desk drawer closed and Twilight remained focused on the writing implement. Patience was something that Twilight learned the hard way after years of struggling with the concept. She shifted slightly in place and continued to wait for Celestia to assume the agreed upon role. Her rump slightly tensed up as the thought drifted into her mind. As a preparatory measure she did a bit of research on the topic of sexual spankings and gave herself a swift lick from her mane brush the night before. The purple pony didn’t anticipate Celestia being quite as rough with her bum as she had been with the grooming tool; but then again this was her first exposure to Celestia’s hidden interest involving her bottom. A few memories of getting a firm hoof out of loving discipline briefly visited her consciousness but being on the receiving end of a bum clap out of physical desire was very new territory.

She almost jumped when she felt a familiar wing caressing her lower back. Twilight didn’t even notice the older mare moving from the window. For the first time she started to wonder exactly what it was Celestia was even doing behind her the entire time? Was she making preparations for the events to follow or was she literally just admiring her butt?

“Repeat the safe word” Celesta calmly said before lightly nibbling on her ear.

“Vae” Twilight responded with notes of desire in her voice.

Celestia backed away slightly from the willing participant. She hummed briefly as the hefted the word in her mind. Her student clearly still made time to stay familiar with old dialects. Twilight remained still while holding the chalk steady; unwavering in her commitment to see where her teacher and lover was taking her. With some effort she kept her mind mostly empty. She tried not to focus on the many possible things that Celestia might do to her. Twilight tried not to predict the tone of voice Celestia might use or the tone that would best amplify the illusion of her unquestioning submission. A shudder came over the younger Alicorn when soft feather gently caressed her own wing. The caring stroke traveled down her back and through her tail. As the sensation withdrew she exhaled in a manner that betrayed the depth of her curiosity.

Celestia smiled to herself again before lightly biting her lower lip. Admiring the purple plot was fun but the main event was beckoning to her. Her horn faintly glowed as she tucked a wooden ruler in her wing. One inch was nestled between feathers along the edge of her wing while the remaining eleven proudly stood out. She gave the tender yet tight looking rump a light tap on both cheeks.

“Student” Celestia firmly said as the ruler landed faintly. “Your performance has been slipping.”

Twilight exhaled sharply in anticipation. Her matron’s tone along with the touch of a very familiar object on her backside gave a curious mix of arousal and nervousness. A few times she found herself over the Alicorn’s lap but only once was a ruler used to inspire better respect for certain rules. The memory of the impression the simple measuring tool left on her bottom was a dim blur but the commanding tone seemed to push her to remember. Twilight could recall a burning bum as well as a sense of being safe and loved. Another light pat on her posterior shook her from her thoughts and Celestia’s voice anchored her to the current events.

“You’ve been focusing less on your studies and more on personal undertakings” the older pony firmly said as a third tap landed a little under the thickest part of Twilight’s tush. “Care to explain what has taken priority over your classes?”

Twilight blushed faintly as Celestia seemed to start tapping impatiently on her bum. She shifted in place and silently reminded her of the rules and roles they agreed on.

“No, Sifu” Twilight hastily forced out as the rhythm on her bum built up. “Nothing is more”

A sudden stroke landed fairly harder than the earlier taps. Twilight gasped in surprise from the abrupt shift and Celestia uttered a lustful hum.

“You’ve become distracted” Celestia retorted as she gave another firm clap of the ruler. “I’ve taken the liberty of inspecting your quarters and I found an interesting sketchbook.”

Twilight paused in thought as her mistress’ power took the chalk from her. Twilight watched in amazement as the white rod was broken into eight equal pieces. The fragments went to work and lines were made seemingly without reason. Gradually shapes became recognizable and Twilight’s cheeks burned a fair degree redder as the simple doodling became a detailed piece of art. In front of Twilight was a depiction of herself in the act of fellating Celestia’s horn. Chalk Twilight was giving her chalk teacher a sultry gaze while her lips rested on the bottom of the catalyst of her mentor’s power. Twilight had her fair share of lewd thoughts but giving Celestia a horn job was a very new one. She gave the drawing another glance and licked her lips. The proposed activity did look interesting.

Twilight started to consider the idea when another stroke landed on her rump.

“This is one of the more tame ones I found in your sketches” Celestia said as the picture started to fade.

The particles lifted from the board and began to condense back onto the pieces of chalk that produced the drawing. Twilight watched in awe as the segments fused together, restoring the chalk stick to its former state. She understood how Celestia did it but watching her preform magic always seemed to inspire her in some way. The chalk floated back to where Twilight kept it before it was confiscated and after another clap on her bum she grasped it with her power.

“Inappropriate drawings of your teacher” the alpha Alicorn mused while tracing the ruler along slightly warmed flesh. “This is a dire offense that I cannot ignore. Your after class hobby is distracting you from your work and it is affecting your performance. I’m going to give you something other than sucking my horn to think about.”

Another love tap came down on Twilight’s butt and she squeaked as it was rapidly followed by two more.

“Having such fantasies as improper” Celestia coyly said as she traced the ruler under the base of Twilight’s tail. “Did you ever once stop to consider what I might say or do upon finding them?”

Twilight’s face turned another shade as she felt Celestia’s wing tease her most personal region.

“Clearly you have other interests and they take priority over your studies. If you won’t be a dutiful pupil in class” Celestia paused and towered over her slightly fidgeting playmate. She gave her left ear a soft nibble which provoked another surprise squeak. “I can always divert your attention to a subject that you can focus on.” Celestia carefully gave Twilight’s right ear a slightly firmer treatment. “If you won’t be a proper student then you will be a proper slave instead.”

The purple Alicorn’s breathing hastened as the words bored into her mind. Celestia didn’t raise her voice but she gradually became more dominating. The larger pony stepped away and the absence of her body heat provoked a shiver. A moderate stroke across both cheeks resulted in a squirm and grunt. The ruler landed on a bottom that was growing in sensitivity and warmth. A soft caress from a wing along her backside elicited a faint moan and Twilight shifted in place. A sudden stroke from the corrective implement made her jump. Celestia’s voice made her anchor herself back into place.

“But before I inform you of your new schedule; we’re going to deal with your little bout of perverted creativity.”

The room felt a lot smaller and more tense as the game progresses. Twilight's rump was mildly tenderized and displayed a faint pink shade under her coat. Celestia continued to slowly trace the ruler along the slightly trembling pony's tail base. As the dominant partner continued to slowly amuse herself the submissive participant’s heart quickened a little more. A sudden snap across both cheeks landed and was followed by a wing softly caressing her impact zone.

“Normally I would expel you for this sort of misconduct” Celestia said with a smirk as her fearhers continued to trace along Twilight's bottom. “I could be persuaded to reconsider. As I said earlier; I think I can still keep you as a pupil; but for a non-academic subject. Assuming you are prepared to accept your due punishment and accept your new role; I can see myself making an exception and keeping you here. You will still be expected to attend your usual classes and maintain a passing grade but you will also be expected to report to me weekly for something extracurricular.”

Twilight strongly fought the urge to gigglesnort. There were several ways that Celestia could have worded that and many of them would have been more mechanically proper. A quick trio of strikes landed right on her sit spots and her lover continued.

“Can I depend on your obedience, punctuality, and discretion?”

The mildly sore bottomed Alicorn nodded in silence. Her body was aching for more and she desperately wanted to deduce Celestia's plans. The wooden tool was again tracing its edge on her butt and Celestia half growled into her ear.

“I am going to spank you. I am going to tease you. I am going to make you cum for me. Any questions, student?”

Twilight playfully whimpered after Celestia firmly reminded her of what roles they agreed on earlier. The wicked ruler tapped an untested area of her backside gently and then followed with a firm stroke. Twilight lightly bit down on her bottom lip and turned her head to look at her mistress. Celestia regarded her with a stern, fueled gaze. Her stance was powerful and her frame somehow seemed more sturdy. The proud horn pulsated faintly with magic. The mental image of the erotic chalk art was firmly pushed aside to make room for thoughts of what Celestia was about to do to her. Twilight's legs slightly trembled and wings passively fluttered as the wooden stick tapped gently on her mark again. The ruler departed from her rear and Twilight tensed up in preparation for another blow. A grin came over Celestia's face as she returned the instrument to its drawer. With a careful yet strong motion she used her grand, white wing to guide her partner into turning her entire body around. Twilight offered her mate a soft smile before lowering her gaze as a show of submission to her mistress. Both of the loving disciplinarian’s wings softly grazed Twilight's face before tracing down her sides.

Twilight inhaled Celestia's scent as she was guided into making eye contact. Celestia made herself appear so stern and still gently soothed her body. A wing traced along her slightly heated bottom as the older Alicorn reclined into a sitting position. Without a spoken word, the Sun Monarch pulled Twilight closer with her wings. Her student surrendered to the silent embrace and invitation. For a moment Twilight forgot about the illusion of being in trouble. As Celestia shifted her position, the imminent spanking re-entered her mind.

Celestia straightened her back a little and shifted her legs. Her knees were now propped upward and her legs were parted. She retracted her wings and Twilight took an extra moment to observe the familiar position. Her mate now had an open lap that she was meant to occupy. The purple Alicorn nodded meekly and slowly climbed into the intended position across her lover's bare lap. With her wings, Celestia gently caressed the slightly darkened rump before folding them back. She paused to admire the view and almost chuckled. Whenever she needed to spank Twilight there was usually a short debate about it first. Now that she wanted to give her supple bottom a tanning rather than needing to: there was no arguing or bargaining to get out of it. Celestia smiled as her mind compiled the sort of pony Twilight grew up into. She also had a new appreciation for doors that could lock. The kingdom seemed to have adjusted to the fact that she entered a romantic relationship with her former student but using corporal punishment as sexual spice might bring some complications.

One of Celestia's front legs draped over Twilight's back and rested just below her wings. The other moved over the purple plot and lightly tapped her flesh.

“You will remain in my lap” Celestia firmly said as the taps shifted to caresses. “You will take what I give you and you will not fight me. Satisfy me and you will be allowed to stay at the University; saving you from explaining the nature of your titillating hobby.”

As Twilight fought the urge to analyze the fact that she had already gone over her plans earlier; Celestia felt a slight lapse in confidence. Judging by her student's breathing and how she acted; Twilight was satisfied with their game thus far and was willing to keep going. The ruler was a light enough tool and was easy to control. Celestia wasn't counting the licks she delivered to her favorite bum and she didn't have any reason to suspect that Twilight was going past her comfort level to please her. The alabaster mage was more focused on the next step. She committed herself to go harder. For a brief moment she had a memory of a sobbing filly across her lap. Twilight was a grown mare and the reason for her soon to be delivered spanking was very different than the previous motive; but the looming possibility of going where there was more pain than pleasure was daunting. Her hoof continued to smoothly go along the presented rump and she took note of the slight differences in heat as she explored where the ruler had been.

Twilight slightly squirmed as Celestia kept caressing her bottom. The soft touch of her gentle hoof on her slightly tender rump inspired a sensation different than what the ruler gave her. The firm yet almost playful slaps were highly erotic in her opinion. The shift to what qualified as aftercare was equally arousing for different reasons. Their mutual trust and respect was strongly reinforced. Twilight never worried that her utterance of the safe word would have been ignored; but the shift in tone anchored the sense of security. The warmth of Celestia's lap and how snug she was held down made her feel safe. It was reminiscent of her occasional childhood trips to her current spot. A bottom on fire was always clearly inevitable but she never felt threatened. Twilight always shook and sometimes whimpered about her fate; but Celestia never once held her out of anger. There love was different and the reasons why she was there had changed; but the sensation of security was every bit as strong.

Celestia brought up her hoof and brought it back down sharply onto Twilight's right flank. The sound clap of her hoof on her lover's flesh was as satisfying as the sight of the cheek slightly jiggle from the blow. Her subservient partner hissed from the impact and Celestia delivered an equal strike to the opposite side of the willingly helpless butt. A third and fourth blow were delivered to opposite cheeks and Twilight let out what sounded like a squeak of reflexive protest. Her hoof rose and fell again, this time cracking on the center of both cheeks with the end of her foreleg. She tiled her head and channeled her energy as she closed her eyes. Celestia's point of view magically shifted as across the room. She saw herself with Twilight in her lap being spanked with her own hoof but the focus of her gaze was her mate's face. Celestia drew a heated breath as she watched Twilight's eyes widened as her rump was brought right back to the level of soreness she was given before the brief intermission. The dominant Alicorn dropped the spell and returned her attention to the purple plot and gave another swat.

“Naughty girls get punished” Celestia said as desire burned within her. “You're a very naughty girl, Twilight.” A pair of claps was administered and Twilight whimpered. “I like that. You're going to become very well acquainted with my hoof and lap.”

Twilight's face once again matched the shade of her bum. Celestia very firmly declared her position of power as she continued to clap her hoof down. Her body was snug enough between Celestia's hind legs and lower torso to keep her from being shifted but her backside was free to jiggle from each blow. She grunted and hissed from the growing heat. The slightly stinging sensation was slowly building. Her mind was slowly sinking into a haze as her mistress paused in her swats to trace along the base of her tail.

“I want you to think about that little sketch from before” Celestia coyly ordered as she delivered another pair of slaps. “After a few sessions I will be teaching you how to properly suck my horn.”

Twilight faintly squirmed from the words. For a moment it seemed that her strict headmistress was having a lapse in confidence in her role. There was a brief part where she considered dropping the game and proposing some cuddling and maybe trying again later. Her arousal started to become more evident even with the growing soreness in her rump. She did visualize the idea of giving her teacher an apology horn job after having her bottom tenderized. Twilight gave out what sounded like a mix between a whimper and a moan as she felt a hoof suddenly trace along her most personal region.

“You're getting turned on by this, aren’t you” Celestia mused as she gently stroked her pet's moistened marehood. “Is this what you hoped for? Is this what you daydream about in my class? You like being taken into my lap and treated like a dirty little slut?”

Twilight's eyes widened and her face burned more than her glowing bottom. There was no more doubt that Celestia not only settled into a seat of power. She practically was basking in it. Her lover continued to tease and please her outer folds as she went on.

“You will be fun to train. I will enjoy turning that purple ass pink every week.”

Between the show of dominance and the gradual increase of vulgarity, Twilight was at a boiling point. Celestia continued to massage her and the tension that was built over the course of their session was almost fully peaked. Between her aching plot and her pleasured loins, she was almost a slave to her normally restrained carnal desires. The Sun Monarch did clearly drift into exerting total control of the situation but in context of the illusion; it flowed seamlessly. Twilight continued to moan against the grinding against her passage. The submissive Alicorn took another moment to vividly imagine having her muzzle guided down Celestia's horn. The discomfort and heat in her rump that was once a feared state to be in was now more of a need. The love taps from her lover's hoof and ruler and the impression they made remained very fresh in her mind even after they moved on.

Celestia grinned as her horn faintly sparked. The desk drawer was opened the ruler returned to her side. The glow of her power guided it towards Twilight's bottom and gave a solitary slap to her cheeks. Her pupil squeaked at the sudden action and Celestia gave another strike to the thickest part of her flanks. She continued to massage Twilight's organ while thoroughly enjoying the visual and audio stimulation. The way her supple bum wiggled after being struck and the sound of the clap brought her more pleasure than she thought it would. The squeaks that left Twilight's mouth served to amplify her amusement. The ruler settled into a slow rhythm of licks against flesh that hadn't gained any color. Her lover seemed surprised by the wordless vow to leave no part of her bottom untouched. Celestia summoned more of her energy and spawned a tiny orb at the tip of her hoof. The energy drifted against Twilight's button and started vibrating.

Twilight gasped and moaned from the assault on her nethers and plot. Between the second round of swats from the wooden tool and the new sensations she was now putting more effort into squirming around in Celestia's lap. Her entire bottom had a strangely delicious sting and heat. She bit down on her lower lip and her horn sparked briefly. Abruptly a firmer smack landed on her already tenderized bum. A mild yelp came out and another strike landed. The new ones felt like she was seriously being punished for a misdeed. For reasons that made very little sense; that somehow turned her on more. The illusion of helplessness was carried into new territory and she was still going along with it. The safe words echoed in her head as another corrective blow landed on her cheeks and she felt her mistress bring her hind legs a little closer to her body; restricting Twilight's movements a little more.

“No casting” Celestia firmly commanded as another heavier bite from the ruler fell.

Twilight soundly cried out as she was pushed over the edge. Every nerve ignited as her body was thrown into a higher state of bliss. Twilight slightly elevated her rump further and cried out a wordless sonnet of pleasure. The rush of her orgasm seemed to come at the command of her mate. The younger Alicorn's body went limp in Celestia's lap and grand, soft wings gently moved her into an upright position against her chest. Her mistress softly nuzzled her mane as a hoof gently stroked her lower back and tail. Twilight's mind slowly shifted from fantasy to reality. Celestia the stern and manipulative authority figure was gone and Celestia the loving wife was left in her place. The afterglow of her climax was amplified by her mate's embrace. Her butt was rather sore but she still felt safe and wanted. Her mentor softly hummed the way she once did after correcting her behavior and Twilight softly laughed.

“I haven't heard that in years” Twilight half whispered as she nestled against Celestia's chest.

“Old habit, dearest” Celestia softly replied into her student's mane.

Twilight’s mind burned with the desire to dissect and analyze their private time. Celestia's gradual pace into being comfortable with her role and her sudden fascination with the use of lewd words while almost talking down to her was very curious. The use of a ruler as a warm and bringing it back for the end of their session. She deeply inhaled her lover's scent. Soft wings continued to cradle her and she let her body sink deeper into the cradle of feather. Her body relaxed further as the aftershock faded. The sore bottom her lover gave her was now much more apparent.

"Did you still want me to fellate your horn" Twilight uttered in a submissive tone as she playfully nipped Celestia's neck.

"Not this time, student" the alpha in their activity responded as she kissed the top of Twilight's head. "This was just a little experiment to see what you might let me get away with once I got used to this new game of ours."

"So how did you find out about my drawings" Twilight shyly asked as she tilted her head to make eye contact."

Celestia returned her gaze and wore a coy grin. Her hoof carefully traced the base of her mate's tail.

"You really have erotic sketches of us?"