Late night studies

Luna walked out on the balcony from her and Celestia's bedroom, her duty as the princess of night called. But before she decided to raise the moon, she gazed a one last time on the light her sister's sun brought to the fields around Canterlot. To think that something the ponies of Equestria always took for granted was in her grasp always taunted her to be a little prankster. But she knew there was one among all of those who heavily entrusted her to be a mature princess and do what she was born to do. This trust was the strongest source for her loyalty to last. Thus, she lowered her head to put all focus on her horn. Its magic glow enhanced her ability to take control of the round, distant orb of cosmic size to reveal it from its hiding. The darkness wrapped all of Equestria in its consuming might to blacken the sky. The shiny, white orb took its place in the canopy, ending the magic brought from princess Luna as she trotted back to the bedroom with a proud smile.

“I'm done, sister. Shall I take over your work now?”, Luna asked Celestia with a lack of discipline since her smile wouldn't disappear. The elder princess laid on the soft blankets of her large bed with an open scroll levitating in front of her. She was halfway through the text when she looked away at her sister. “Yes, Luna. However, I will not go to bed yet. I have a last task for today I must attend to”, the white mare said before rolling up the scroll and letting it float over to Luna's smaller bed to rest.

Luna looked curiously at her sister, “what task, sister? You never stay up late anymore now when I'm here to handle-”, the dark blue alicorn said before getting interrupted by the smiling Celestia. “It's Twilight Sparkle. She have been asking for me to have one of those late night studies again with her. We used to do that in my working chamber before she moved to Ponyville, when I held responsibility for both day and night”.

The younger princess understood, “Oh... okay, sister. I guess I better continue your work so you can go to her!”, she then said with enthusiasm while trotting happily over to her bed.

The elder princess was happy to have Luna by her side again. Her return from the dark being Nightmare Moon had really gotten a lot of stress off her mind. Now she could finally rest easy during nights without being disturbed by urgent matters and duties that began to be a real burden for her during those one thousand of years. But having studies with her prized pupil were almost a privilege for her.

Before Celestia had opened the doors to the hallway, Luna realized something as she unrolled the scroll. “Oh! By the way, sister: when you are meeting Twilight Sparkle, send my regards... for that night, you know”, she said with a wink to her sister and giggled. Celestia rolled her eyes with a smile and nodded. She would surely send that message first thing before beginning the studying.

The princess had prepared everything for the event. The fireplace was lit, two white cups with blue stripes and a filled teapot was placed on a small table, her yellow cushion was pushed aside and a bunch of pillows were fluffed up and placed in two separate piles as replacements. Three for the princess duo to her size and one to little Twilight Sparkle.

She took a last look and figured out there was one last thing she almost forgot: the book. Celestia glanced on the bookshelf and brought out the light brown one about ancient mythology which they both had decided to give a look. She had already read it, so it was a perfect reference guide. The tome was placed next to her pillows, another last look; perfect! Everything in place, now to wait for the filly so the studies could start.

Her anticipation had some time growing into exaltation, which after that developed to impatience for her pupil to arrive. However, she knew there was still a few minutes before the designated time. But knowing her student Twilight, there was no such thing as being late, or 'tardy' as the little unicorn used to say. And when barely a second was left before the exact time stamp, the door to Celestia's chamber slowly creaked open to let in the expected filly.

A happy grin shot at the white mare from Twilight when she saw the recognizable scene her teacher had prepared for them both. “Hi princess Celestia! Oh, I've been dying for this moment to happen again; all these cozy hours when we study together, deepen ourselves in facts and fascination! To learn new things about I don't know what, and... and..”. Twilight felt the skips inside her body struggling to break loose. Question was why she didn't move at all.

But Celestia just giggled. “Relax, Twilight. I've also been looking forward to this. Just you and me reading next to each other”, she said with a calm voice. Her long horn glowed to fluff up her student's pillow again as a sign that she could come over and claim the pillow for herself.

Without any further ado, the purple filly inhaled deeply to contain her discipline in front of the princess. With her extreme exaltation calmed down, she walked over to the soft pillow and carefully placed her forelegs on it to let the rest of her body lay on the comfortable mat. Her horn glow to levitate the book she had brought with her, which was the same one like Celestia had.

The book kept levitating in front of her as the cover opened up to reveal the first page. Celestia did the same and cleared her throat. “Hrm; so where do you want to begin?”, she then said, prepared for her pupil to get overexcited again. However, the filly succeeded to hold herself back this time, simply smiling like never before and flipping several pages before realizing she couldn't make up her mind. She frowned and stopped browsing the pages, “I... I don't know, actually. I've never read this book before or anything like it”, she said with a sad tone.

Celestia giggled with a little blush over how cute her student looked like when she cut up like a little foal. This caused her to suddenly remember: the regards from her sister! She flashed with a shocked expression for a second before turning her head to the still disappointed unicorn.

“By the way, Twilight...”. The mentioned pony let go of her attention to the book and glanced at her teacher with a little smile, still frowning. “My sister wanted me to tell you she appreciated you for the 'company' you gave her a few days ago”, the white mare said with a grin.

Twilight thought for a moment. But then she let out a little gasp and covered her mouth with her fore hoof as she understood what the princess meant. The purple flesh on her cheeks overflowed with crimson color as the embarrassment took over her mind.

Celestia almost got curious over the reaction, but were fully aware that it surely had ended with two fully satisfied girls. Twilight whimpered something incomprehensible, attracting the princess to actually ask what happened that night.

However she knew it was really none of her business, even if her mind wouldn't stop drifting around it. Twilight glanced back at the princess and removed her hoof from the whimpering mouth. “Uh... uh, I.... you can... tell her that It... was a... pleasure to help... her”, she said with trembling words before hiding her red face in the soft pillow when she realized the word 'pleasure' had escaped her mouth.

The alicorn smiled at her student. “You know, Twilight; my sister have been very demanding with her needs and seemed very insistent that they needed to let of some steam. But judging by your reaction, she must have really worn you out that night”, she said with a kind and impressed voice to her student. Twilight snorted in the pillow as she heard that. The embarrassment got the best of her when such thing as that night was mentioned. She remembered very well what they did... every bit of it. And even if the question never received a clear answer, Celestia took for granted it all went very nice...

A few seconds passed by to let Twilight gather her focus again before Celestia stated they should start now. The filly had recovered her senses from almost suffocating herself with the big pillow, now fully ready to let her teacher take the lead.

“Why don't we start with this one: page seventyeight, Autumn's flower”, she said while pointing with her hoof to her student, who immediately turned up the correct page on her second try. “It's a tale about the mare Leaf Wind, a poet who wrote commentaries about the magic dyeing all of Equestria with the colors of romance through the autumn.

Twilight looked at the short introduction of the story and arched an eyebrow to Celestia. “Why that particular one, princess?”, she said with a question mark in her grimace. The alicorn threw a hasty eye at the filly, “well, because I find this one very interesting. She has a way of words, you shall see...”, the princess said with a devious thought in her mind.

Enough with good reasons and moral! She had finally decided to actually dig up the truth about that night. She simply had to know, her insatiable will to know how good her sister was as a fillyfooler removed her doubts. Celestia had asked her best student to please her, and not mentioning a single word about it was strangely aggregating for this fully grown princess. Why would she keep such a secret when it involves the two things she cares most about? This thought seriously got on her nerves; and that was why she planned on revealing it.

“Okay then. If you say so...”, Twilight said with an 'okay' on her face. She made herself comfortable one last time and began reading the first page with hard dedication. Celestia just smiled as usual and waited for the reaction she knew would come soon. Being a proofreader of already proofread literature, it was just a question of time before she would reveal her young voice to ask about a certain name. A moment passed with the princess' watchful eye over her student, guessing that it would take approximately twenty seconds. And right she was...

“Princess.... there is a name I've never heard of before here: Aphrodis Prance”, she said while placing her fore hoof on her purple chin, “and the book only mention her as Leaf Wind's friend”, she said with some hesitations over her own failure to recognize.

Celestia giggled when the name was mentioned, causing her student to do wonder even more what gives about it. The mare rubbed her chin too and answered the question with a half-dramatic behavior, “oh, have you never heard of her? Now that's curious...”.

She tried to not roll with her eyes, but the thoughts of her next move almost made her feel ashamed.

Trying to keep up with the improvisation, she pretended to actually think of the obvious reason why it wasn't in Twilight's book. But as the purple filly almost grew impatient to know, the princess chuckled, “Oh oh oh! Now I know why; that part was excluded in every copy when this book was printed for publishing”.

Twilight looked even sadder at Celestia when she with her frown intact asked, “Does.... does that mean...?”. But before she could finish that sentence, the white mare glanced back to the levitating tome.

“Except this one, which was the absolutely first written one!”, she said with a relief to her student. Twilight almost jumped in exaltation. “Oh, wow! Could you please tell me then?”, the filly asked with a happy grin and a gleam in her eyes. Now the next step of Celestia's plan could move on.

“Now, Twilight Sparkle; isn't it best if you read it yourself?”, the mare said with a demanding tone, glancing with half-closed eyes at the pony.

The filly tilted her neck back, “oh, of... course, princess. Can I...”, she was about to ask kindly before Celestia interrupted her again. “So why don't you come over here next to me so we can read it together...?”. She revealed her shiny white teeth in the 'kind' smile she gave Twilight while patting one of her own pillows with her left wing.

Twilight widened her eyes in shock to this very odd request. Why in Equestria would the princess suggest such a thing? She had not the slightest clue, but nor did she had focus to wonder about it. After all, what was so weird with this? They were just going to read a book, and if they happened to lay next to each other while doing that, it shouldn't mean that anything would happen, right?

The alicorn looked away with a little pout on her lips, “I just thought.... it has been a while since we could spend time with each other like this. I just want to feel that you are still close to me, Twilight”, then she turned back her head with a begging look in the eyes.

The unicorn almost blushed in her joy to hear such touching words. The princess really had missed her and those times of studies the had together! Now there were no doubt at all that she should walk over to her. All of her legs stood straight up as she slowly trotted over to the princess with a satisfied smile, fully unaware of the tensed corners of Celestia's mouth as the purple filly stood next to her.

The alicorn moved over a little to give room for Twilight. And while she nuzzled in next to her side, the teapot placed on the table floated up to pour up the two empty cups, filling them with fairly hot tea. Twilight grabbed the attention of the closest cup when it levitated back to its place, taking control of it as soon as the princess' magic let go of it.

She took a small sip from it and inhaled the smell of lemon grass. A lovely scent that brought back all the the previous nights she never wanted to forget. A brief moment of enjoyment had to make pass Twilight's mind before she let it levitate back to the table.

While Twilight enjoyed the tea, Celestia enjoyed to feel the soft fur touching her own, almost causing her to drop her cover. She took a deep breath before glancing down on the smiling filly who had made herself comfortable and waited for a chance to read. A number of pages turned with its flickering noise before it stopped to show off a big picture.

Twilight gasped. “Oh my, princess. What a beautiful mare”, she said in amusement like a school-filly as her eyes feasted on the colorful image. It was an old painting of a dark yellow unicorn with a wet heart as cutie mark, prancing on a field of fallen leaves. Above it was the name 'Aphrodis Prance', with its short description which brought a wondering expression to Twilight as she read it out loud, “the harbinger of lusts?”.

“Yes, my dear student: Aphrodis was the very image of the burning passion inside every filly's and mare's heart, living in a time long before even I ruled Equestria. She had a philosophy based on the freedom for every female equine to express her sexuality and hunger for it”, Celestia explained carefully. Since she wasn't cut off by the listening unicorn, Celestia's explanation continued after a little peep on Twilight's cutie mark.

“Aphrodis were however not the very patient or diplomatic one. She believed that the lust yearning inside everypony had to be released as fast as possible, sadly enough driving her to try seduce every single unicorn, pegasus and earth pony to deflower them all with her one and only body.

“Oh my”, Twilight said with a soft touch to her own chin. The princess chuckled. “Indeed. In the beginning, most ponies actually thrived in her presence. Aphrodis was a marvelous lover, giving everypony an unmatched satisfaction of sexual needs”.

Then Celestia sighed in grief. “However, her downfall came when she one day tried to become intimate with the daughter of a duke with very high status. The duke was furious over the lustful mare's behavior and demanded the current ruler of Equestria to imprison her desire for sexual lust. Thus by doing so, the mare became nothing but an empty shell of her former self, doomed to walk Equestria as a nopony”.

Twilight first thought the princess was finished and were about to ask her why she explained so much, when...

“But! It is said that the ruler of Equestria actually didn't imprison Aprhodis' lust, the ruler merely just absorbed her desire for satisfaction, thus gained all of her abilities involving sex. And it is said that this ruler let the ability get passed by to every generation of rulers over Equestria, slowly shredding it piece by piece for each mare or stallion who inherited it...”, she finally ended with.

The unicorn suddenly had a flash of insight. Especially when she even more suddenly realized that her back was a bit warm. She looked over her shoulder and saw that the princess had laid her wing over Twilight during the reading aloud. The filly gulped and jumped with her eyes between the princess and her own back. “Uhm, princess? Your wing must have accidentally covered me while you...”, she said without actually finishing her own sentence in nervousness.

Without caring about what the little puny voice mentioned, Celestia said one last statement. “But you know, only the first born of every generation gains this ability, meaning that Luna can't have it”.

And at that very moment, Twilight understood what was about to happen. She curled up and blushed heavily, “p... p-princess...”.

The trap set up and executed, it was time to drop the act with a lustful glance and kind smile from Celestia..

“Tell me, Twilight; Isn't it true that you always have those gorgeous eyes placed on my flank whenever we had those late night studies?”, Celestia asked with a sexy voice while glancing down on the embarrassed pony.

She stared back at her with trembling eyes like regrets had taken over her mind. There was no deny nor agree, just the approach of a pair of wet eyes from the unicorn. However, she recalled the truth...

A couple of years ago, Celestia had a study session about natural development across Equestria with Twilight, a study purple student had to repeat several times in order to remember all the endless terms and correct arrangements. One day, laying on her own pillow one meter away from the princess, her eyes grew tired from reading the same book for the third time, casually forcing her eyes away to see something else but just black on white.

In a pure coincidence Celestia's flank appeared right in her vision, with golden orange on white instead. She shook her head and instantly returned to the book. “How's it going, my student?”, Celestia asked humbly while momentarily looking away from her levitating parchment. Twilight Smiled, “It's going just fine, I just... tried to remember what I just read”.

Both of them knew she lied there, but the alicorn simply smiled back, “good to hear”, then returned to her own reading with the traces of a suspicious eye towards the filly.

Twilight breathed silently and tried to put focus on the book, just read the lines again. So much fact she needs to know, so important for her future to become the ultimate star pupil Celestia could be proud of.

Celestia.... her eyes stopped moving and got stuck in her realization. Why did the image kept appearing before her eyes? How could it be so hard to just put focus, how?! She just happened to see her cutie mark, what's the big deal? Besides, she didn't saw anythi-...

“Excuse me, Twilight. I'm just going to check one thing in the shelf”, the princess said as she rose up from her comfortable spot. Twilight avoided the book with her eyes and glanced at were she heard the mare's voice.

Her magic lost contact with the tome as her eyes rested on the exposed marehood of princess Celestia. She had turned her back to Twilight and scanned the shelf for whatever she looked for.

That round, voluptuous plot. Two sexy, round halves with the equally white labium between them which should have been covered by her tail, now in full sight for the blushing unicorn. Her mind went blank in shock and arouse of sexual tension. She was incapable to turn away, instead wishing for that moment to never end.

But the moment of wishing was ended the same moment Twilight's book hit the floor in a loud thud. Celestia twitched and turned around in the glimpse of a second. However, all she could see was a busy pony reading her levitating book like the sound never happened. The filly turned her head and smiled at the mare before turning back to reading.

However, the princess noticed that the book Twilight concentrated on was upside down, causing her to smile deviously in secret while keep pretending to look for something...

Twilight had seen other fillies flanks before and sometimes even their precious parts at a distance, but the princess' had the most outstanding one of them all. Unmatched in all classes involving everything between shape and pose. Her memories kept echoing as Celestia furthered her questions.

“And isn't it true you have wondered how it would be to... try my majestic body, Twilight?”, she further questioned with her neck reaching down to glance right above the purple filly. Still no reaction.

Twilight just felt pressure building up inside her with all buried emotions starting to erupt. The giggled from Celestia became half-evil snickers as her wing wrapped itself around Twilight even more.

“Isn't it so, you perverted little filly? You want to know how my horn feels inside you. Your curiosity hungers to know if I'm better then my sister. Right, Twilight?”

The unicorn breathed harder with the blushes soon becoming a part of her permanent facial expression. Her tongue slowly slipped out to hang down more and more for each centimeter the big, white wing surrounded her. Celestia knew it was not long before Twilight's special place would be soaked entirely in love juice.

Something did quite indeed happened to Twilight, but it was so unfamiliar. She had been turned on before and extremely aroused in the process, but this was something completely different. Like a new world opening up for her, creeping inside her mind and slowly succumbing her personality. This wasn't her usual self who liked what she saw; it was somepony else... very differently else.

A last whisper broke the last piece of ice. “You're a naughty little slut, ain't you my dear... student”.

Twilight eyes flashed while she gasped in excitement. The result from Celestia's teasing had caused her heart to flip out fully in a spark of lust. With this voice inside her head, her muscles tensed to break free from her imprisonment, leaping over to the princess' flank and darting her lips around the beautiful sun centered on it which she always wanted to do since that day.

The mare gasped in shock over Twilight's enthusiasm. Her fur was soaked in merely a second, pressed down to get lapped by the pink tongue in an intense stroking. Celestia felt the excitement growing quickly, seeing her hungry student grabbing hold to her behind and almost trying to make out with the mark. She giggled over the impression Twilight gave her.

“Oh my, Twilight... you want it that badly, do you?”, she said tauntingly to her. There was no answer, only the squishing noises from Twilight's saliva drenching her flank. It was heavily releasing for the princess, feeling the ecstasy fogging up her mind. But soon she would be fully aware about who used who....

The pain interrupted Celestia's approaching moan. White teeth sinking down into the even whiter skin made her cry out. “Ouch, Twilight! Be careful with your teach...”, she said with a little pout before the next bite left its markings on her flank and interrupted yet again. “OUCH! Twilight Sparkle, I told you...”, she said with a disciplined tone before looking back on the purple pony.

Twilight glanced back on the princess with a maniacal grin and bloodshot eyes with her jaws still locked over the white flesh. Celestia tilted her head in shock. The unicorn growled, almost frightening the princess with this behavior only equal to a carnivore. “Twilight... are... you alright?”, the mare said with hesitation.

The little pony let go of her grip and just kept smiling unnaturally wide at her teacher. However, with Celestia's experience, she recognized a large amount of lust in the tensed eyes staring at her, causing her to briefly smile. “Okay... just... be careful, Twilight”, she said with some more relief now.

The unicorn turned her head back to the behind she aimed for so much, gently dragging her foreleg across the flank to a more 'fun' place. “Yes... that's right”, the princess said with a groan as the hoof passed by the magically moving tail. Celestia focused her horn on the golden collar around her neck and simply slipped it up along her soft neck to put it aside. Twilight ground her teeth and crept over to place herself completely behind the princess. The other hoof joined her touching over the sweet spot. Her own legs trembled, shaking like they were about to collapse.

The princess arched her neck and yelled out as the sudden and violent piercing inside her ached without warning. But there was no time to react over the pain, because now she felt a rapid thrusting from the soaked tongue infiltrating her nether.

It was too early, she hadn't even gotten herself wet. No nice starting with a gentle tease and soaking with the tongue, just immediate impalement, stretching her cave in sudden movements. However, the princess didn't even thought of asking her to stop; it was just a matter of seconds before the heavy pounding made her comfortable. She closed her eyes, her throat exhaled the moans, her forelegs split and the other two carefully tried to place themselves in a better position.

“My, Twilight Sparkle.... you sure are.... ahh... much... oh... better then I... I thought y-you would... mmmhh... would b-be”, the mare whimpered between the more louder moans.

The unicorn was like possessed, she didn't hear a thing her teacher said. Her state was an unknown one for Celestia, but she sure as hay liked it. It was surprising for the princess how far the little filly could reach inside her love hole with that little tongue. It swirled around and caressed the pink walls, adding so much fluids that it dripped out on the pillow as the oral organ slither in and out like a snake in a bush.

Now it was almost uncomfortable for Celestia. The pressing became more rapid, increasing in speed so much that it almost hurt. How in Equestria could this pony be so energetic? It was insane! Would she never grow tired? Did she wanted this so much she was willing to sacrifice her body for it?

The answer remained a mystery for her. After all, her own final was about to be reached. But this wasn't what the princess wanted. She wished for this continue, having a better penetrating partner then any of the royal guards she ever had been with. Her gasps enhanced. “Twilight! Slow down... I... I'm... oooh, TWILI~IGHT!!”, she yelled out as the warm fluids gushed over the mentioned pony's face.

A high-pitched scream left Twilight's mouth. It sounded like she was even more exalted from this, craving for another one of those waves. The princess, however, had lost most of her energy in that intense penetration. It went so fast, way too fast for her standard time. She panted hard with a smile and turned over to lay on her back. Her smile was an evidence of satisfaction, but soon got erased when she realized something horrifying.

“It's not over yet, princess! Luna lasted much, much much, MUCH longer then that!”, her voice yelled while the lust in her eyes almost caught fire. The flashes almost reflected in Celestia's own eyes as her jaw dropped. The filly twitched with her head like it said 'aha', then pounced over the big body to land on top of its chest with a thud. Celestia huffed over the impact before she felt the purple forelegs grabbing her neck.

Twilight forced her lips on Celestia's, instantly slithering her tongue inside the royal mouth with muffled moans. The princess was still a bit afraid of her student's crazed behavior, but it wasn't more then fair if the filly had her pleasure too in this. Thus, she answered the kiss by wrestling back with her tongue and embraced Twilight with her forelegs and wings.

The wet organs slipped around, bumping into each other and struggling to clench around each other. However, the princess soon felt the approach of a lost battle inside their muzzles. Twilight pressed down the opposing tongue and stroke it brutally before toying with it like a cat with a dead mouse. The princess suddenly felt slightly inferior realizing that she was being tongue-raped by a smaller pony. A trace of embarrassment echoed through her feelings.

They broke the kiss with several bridges of saliva still refusing to disconnect them entirely. Celestia gazed a good long time at the filly in front of her. Her eyes were still wide open, the smile was still intact even though her own panting had taken its toll on her. Suddenly, Twilight's pupils flashed over to Celestia's majestic horn. Her mouth opened, letting out a thin trace of drool along her chin as she snickered disgustingly.

Celestia's head was pinned down to the pillows as Twilight crawled over her face without even trying to stand up. Celestia actually enjoyed it a little, feeling the soft tummy sliding over her muzzle. Her excitement returned once the purple thighs were around her cheeks, believing this was going to be her turn pleasing Twilight's wet marehood.

But her confusion took over as Twilight kept crawling to get on top of the big horn and pushed of the golden crown, letting it fall to the floor and roll away without attracting any attention. She then pushed away Celestia's floating mane and stood up from the floor. Twillight now stood on her hindlegs and grabbed the mare's head in order to adjust the horn to the height of her pelvis. It was not until now that the princess understood Twilight's true intentions.

“Sooo big...”, Twilight said with her mind still in trance. She leaned forward while gently guiding the horn inside her special place. Celestia just laid still and giggled over this somehow sexy thing Twilight's behavior had developed. Did she had even the slightest idea over how much control the white mare had now? Time for some lesson in making your teacher feel second, Celestia thought before starting to focus her horn with magic.

Half of the horn was inside Twilight's pink cave of flesh before it stopped, gently stroking her labium apart to fit perfectly. She took a deep breath and slowly pulled it out again, revealing how moist and sticky the white cusp had gotten from just a single impale. Celestia smiled back to Twilight's grin from the bed of pillows.

The purple filly placed her fore-hooves on her teachers cheeks and rocked back her pelvis, violently forcing inside the horn again as the magic erupted from its tip.

Twilight gasped like a knife had stabbed her stomach as the stream of pleasure glow inside her wet, penetrated hole. A few seconds passed before she trembling yelled out, “Oh fuck YES! Ah! Oh! Uuuugh.... yes.... more... more, give me more!”, and then thrust harder. Celestia breathed harder from the pleasure she felt flowing from her horn directly to her mind. But once again, she would be inferior.

The pushing didn't stop. Minuted had passed, and the purple unicorn kept rocking her hips without break. Her mouth was wide open while hanging in front of Celestia's vision so her saliva could drip down on the princess' face. Her perspiration streamed down her body, soaking the pillow in front of her hindlegs from her steadily increasing body heat. The violet eyes stared at the princess, hardly blinking to see her every facial spasm. The princess just stared back, knowing this competition was soon her for granted.

This had grown extremely weird for Celestia, because she had only experienced that other fillies and mares lasted for hardly a few seconds on her powerful horn before violently ejaculating. But this filly just didn't stop. Her loud moaning kept going as her mouth kept producing more drool to pour over the white muzzle below her.

Celestia's cheeks suddenly began growing red. All her senses took a new direction she never felt in her entire life. Her marehood was almost dry, yet she felt more sexual tension inside her body then ever before. It all rushed inside her, accelerating to unbearable levels. Her breathing enhanced, her mind vanished, all fears and failures to understand blended together into something so good she couldn't describe what the hay it was. This was preposterous; she'd never even been close to feeling this amount of pleasure by a simple horn-penetration.

She crossed the forelegs over her chest and twitched uncontrollably down in her hindlegs, unaware where she would go with all this electrical pulses flowing through her body like never before. Her throat kept letting out those stressed moans from the unbearable sweetness Twilight blessed her with. She didn't want to close her eyes, she wanted to see this bringer of extreme lust.

“Mmm, yes! Just a little.... little more...”, Twilight whispered while twitching her eyes like she did that time when her report was 'late'. Their breaths caught each others tempo, both blushing red as Celestia arched her eyebrows like she was about to cry.

”Yes, Twilight! It feels so good! So good! Don't stop, please don't stop! It is... is... ugh... t-too good!! YE~ES!!!”, she roared before closing her eyes one last time before her limits reached the roof.

Twilight gasped, Celestia gasped and the horn suddenly stopped glowing.... then hardly a second later, a violent burst of magic exploded inside Twilight's marehood. Causing the alicorn to release a ear-cracking scream of pleasure together with her student. The filly's orgasm splashed over Celestia's head like somepony had thrown a bucket of water on her, covering her closed eyes with its warm, cozy moist...

The white mare threw her eyes open when she woke up. She was laying on her side with Twilight in her embrace, adorably snoring with a smile on her lips. Celestia took a moment to try understand what in Equestria just happened here. That behavior and crazed look Twilight had was just like she had imagined the harbinger of lust would be like. But that was preposterous!

The princess glanced on the cute filly her forelegs surrounded. She knew this was a special pony, but how could she possibly have the inherited blood from the ancient ruler? It just didn't make sense no matter how she thought of it. Celestia had no other siblings but Luna, so how could this be?

The mare sighed and forgot the thought. She was still way to tired to actually care about what was true or not. Fact was fact, and it had provided her with the best orgasm she ever had, even if it happened to be in the most indescribable way. She smiled and kissed the filly on her cheek before laying her head down again on the soft pillows.

Without Celestia actually noticing for once, the door to her working chambers creaked closed again. Traces of tears was left behind on the floor of the hallway, echoing sobbing from a heartbroken, dark blue alicorn. She had witnessed everything since her curiosity forced her to peep inside the working chambers, striking her with sorrow as she saw Celestia seducing the filly Luna's feelings almost had embraced.

She had cried during the entire ordeal, seeing Twilight doing all the things that made Luna feel special. Inside her head, there was a fanfare of echoing moans from her sister, haunting her all the way to the bedroom...

END
Author's note:
Well BAM! Bet you guys didn't see this one coming: Twilight being the dominant one with Celestia!
Had some messages of people wanting me to continue with 'Royal Pleasures', and this very curious thought named “have their rolls ever been reversed?” struck me. Fire blew out of my inspiration and here it is! Hope you like it and will tell me what I should do next. Until then:

Brohoof on ya all!