The frantic sound of hooves emanating from the crowd alerted the guards that something was afoot. The younger unicorn stallion gripped his spear while his elder merely rested a hoof on the younger’s shoulder. “Listen boy.”

The younger blinked, staring out over the crowd that milled about before the entry to the palace grounds. “To what?”

“The hooves that have you all tensed, they are delicate, female, and from the cadence you can tell they are rushing somewhere.” He pointed out.

The younger didn't seem as taken though and tried to peer through the crowd in search of the source of the sound. “I don't get it.”

The older unicorn slapped his younger upside the head. “It's probably a noble, or if I had to put money on it, Twilight Sparkle having forgotten something again, so just calm down, not every sound is some criminal.”

The younger relaxed, just as familiar purple unicorn sprinted into view, having emerged from the crowd and skidded to a stop before the guards. “Told ya.” He whispered.

“Hey there Twilight, here to visit the princesses’?” The elder asked, reaching back and opening the gate for the frantic pony.

Twilight nodded. “Yes I was supposed to meet them for tea but I last track of time. Do either of you gentlestallions have the time?”

The younger perked up. “Oh, it's three oh two!”

The unicorn mare gasped, glancing up at the position of the sun. “Oh goodness, I’m late!” With a flash of purple light she was gone.

The elder guard groaned and planted his hoof against his forehead. “You idiot.”

“What?”

“It's two oh two, not three oh two. Look at the sun for Celestia’s sake it's not low enough to be three!” The guard smacked his younger upside his head again, making his helmet spin on his head.

“But Luna told me to say two!” He lamented.

The elder just cocked his head. “Well I guess if the princess ordered you to, but why would she ask you to go and do a thing like that?”

Twilight Sparkle sprinted through the hallways of Canterlot castle, having to rely on her hooves as her ability to teleport was rendered useless by the castle’s wards. Even with this hampering her speed, Twilight refused to be any later than she already was and careened around a corner, her speed carrying her directly into the path of an oncoming maid.

“Sorry!” The unicorn shouted, leaping over the irate maid who shook her hoof at the manic mare.

Leaping up one last flight of stairs the mare careened around a corner, the royal apartments coming into view down the hall.

“Hey Twilight, late like usual eh?” A guard commented, chuckling as the mare skidded to a stop in front of Luna’s private apartment.

Twilight scowled at the guard but couldn't really muster a counterpoint as she was indeed, late again. “Would you just let me in? The princesses’ are expecting me.”

“I dunno…” The guard drawled, scratching his chin. “Her majesty, princess Luna, did say she wasn't to be interrupted.”

The unicorn scowled at the guard. “Except for me, who was supposed to meet them for tea nearly fifteen minutes ago!”

The guard nodded slowly before finally turning to the door and pushing it open. “I suppose that makes sense, enjoy.”

Twilight snorted in annoyance and brushed past the guard, her fear of being late overriding her desire to be polite.

The door shut firmly behind them, the dull boom of the closing door reminding her of just how big the royal suites truly were. Some imagined them as little more then one or two room apartments but they were sprawling living spaces complete with dining rooms, living rooms, six bedrooms and numerous other smaller rooms designed by the princesses’ themselves. So it was that when Twilight stepped inside she brushed her hooves off, she was left with quite a few rooms to look through.

The entryway was small and lead out into Luna’s parlor room, the lunar princesses’ signature dark blues and moon imagery surrounding her. As Twilight turned the corner she expected to see the usual tea set all ready with her mentor and Luna sitting quietly, sipping away at their drinks. Only to find… no one.

“Hello?” Twilight asked, confused by the sight of nopony there to greet her.

Shaking her head she walked from the parlor to the living room, hoping that they had simply changed their mind on where they will host their weekly tea time. Only for that room to be similarly as empty, as well as the next room after that.

Twilight blinked, baffled by the turn of events. Had she been so late they had left? Or called the entire thing off?

The unicorn gulped, stumbling from room to room, searching for any trace of the two alicorns until she heard a strange sound coming from a room Luna usually had locked. Twilight quietly slipped down the hall, her paranoia getting the better of her,causing the greeting she was about to yell to die in her throat.

With her curiosity sparked the unicorn creeped closer, the imposing iron door open just barely open enough to allow a thin shaft of candlelight to slip through. The sound was muffled somewhat but it almost sounded like someone grunted? The mare’s instant response was to wonder if they were in danger and so she slipped forward, peeking between the crack of the door and preparing a spell.

The spell quickly slipped through her grasp as her brain struggled to understand what her eyes perceived. There behind the door was what looked like a small dungeon with straps, whips, chains and all manner of S and M gear both mundane and exotic dotting it's walls. Despite the bizarre collection of items the likes of which Twilight Sparkle didn't even have names for, her gaze was drawn to the center of the room towards an even stranger sight.

Her jaw hung open and a startled gasp slipped past her lips.

At first she had thought that the two princesses’ were fighting but that was quickly blown away when Celestia had blushed, a muffled moan slipping past her lips. The solar princess herself was bound, gagged, collared, and clad in the most scandalous faux leather outfit the unicorn had ever seen. Her limbs were strapped into a pair of spreader bars, forcing her back legs far apart and allowing ample room for Luna to thrust her massive cock into Celestia’s ass.

The wiring in Twilight’s brain threatened to cross and her eye twitched as she began to truly understand what was going on.

Luna had a dick, a big one at that and she was using it to roughly fuck her sister’s asshole with such force that the white mare’s flanks shook with each titanic thrust. Luna also had a faux leather outfit of her own but it was much more… masculine, with sharp features that showed off more of her chiseled muscles rather than Celestia’s sensual curves.

Twilight found herself awe struck at the sight of the powerful mare and she stared for what felt like hours, marveling at just how strong, imposing and amazingly beautiful the dark alicorn truly was. She had never noticed it before, never cared before but now that she saw, Twilight doubted she would ever be able to unsee it. The sheer power on display each time the alicorn thrusted forward was unlike anything Twilight had seen before, and even surpassed the likes of Applejack and Rainbow Dash to the point that they were rendered insignificant in comparison to Luna’s godlike physique.

When her gaze finally slipped from the dark alicorn’s immaculate form Twilight found her eyes drawn to Celestia’s midsection, her brain just now realizing that the mare appeared pregnant. Not just pregnant but heavily so, with what must be at least twins. Her belly bulged to the point that it hung low, and though she appeared ready to pop she showed no discontent at being so roughly fucked. Each time the dark alicorn thrusted forward Celestia moaned whorishly, though the sound was muffled somewhat by the bit in her mouth. Twilight couldn't see her mentor’s eyes past the white alicorn’s blinders but if she could Twilight had no doubt that those violet orbs of hers would contain the same depthless pleasure she seemed to give voice to.

Twilight blinked, only now realizing that in her shock she had fallen onto her butt, and one of her forehooves slipped between her legs. The thought was shameful, disgusting even but she couldn't resist and with a shaky hoof she gently brushed against her dripping pussy lips.

The two alicorns continued to rut with wild abandon, not noticing the pair of magenta orbs peering at them from between the crack in the door. Utterly heedless to the world around them, the two alicorns moaned in pleasure, Luna’s cock beginning to pull out further with each thrust before slamming back inside. Twilight was forced to stifle a gasp at the sheer magnitude of the alicorn’s endowment as it pistoned in and out of Celestia. It was larger than any dick the young mare had ever seen and she wondered just how she managed to fit inside Celestia’s ass. More embarrassingly she wondered how good it would feel to have it inside her.

With that thought firmly in mind Twilight couldn't help but imagine that it was her in Celestia’s place, her limbs bound, her mouth gagged and her entire body forced to submit to the alicorn of the night. She shuddered, biting down on her hoof in order to stow a moan, her other forehoof rubbing harder and faster as she was drawn deeper into her fantasy.

Luna’s powerful, jackhammer like thrusts slowly picked up speed and Twilight couldn't help but imagine that the lunar mare must be getting close. Which suited the unicorn just fine as she was drawing close to her first orgasm as well, and she imagined that Luna had sped up just for her. As if the lunar princess had sensed Twilight’s pleasure and had romanticly chosen to both finish at the same exact moment.

Twilight bit her hoof and rubbed her pussy so hard and so fast that she had no doubt the alicorns would hear her if they weren't so loud themselves. The pressure built within the unicorn until she could hold back no longer and with only seconds left she fixated utterly on the sight of that titanic cock. The unicorn’s body tensed and she bit down on her hoof, stifling a moan of pleasure.

Her legs twitched and her mind raced, her thoughts consumed by the monstrous mare cock that had begun to slow it’s brutal pace. She watched as it pulsed, Luna’s balls quivering as she shot load after load into Celestia’s body. Twilight could hear the two mares cry out in pleasure, Celestia’s muffled cry drowned out by Luna’s low moan.

Twilight’s hoof continued to work even as her orgasm peaked, trying to eek out any pleasure she could before the show finally ended. Luna seemed to feel the same way and even as her cock twitched, unloading her seed into the solar princesses’ belly she continued to thrust into her with the same powerful thrusts as before. Twilight could tell Celestia enjoyed this as well as she could see the mare’s legs tremble and her back arch, her neck craning back as she let out a long muffled moan.

Finally, after what felt like minutes, the dark alicorn finally began to slow, her cock having stopped pulsing and her hips having stopped moving. She lay there, draped over her sister, smiling serenely while catching her breath. “I suppose I should pull out before I wreck both your holes.” Luna snickered.

Celestia moaned, her cry of no turning into a muffled grunt which Luna promptly ignored.

The darker alicorn took a step back, slowly walking backwards as her cock began to slip out of Celestia’s stretched anus. Twilight sat there in stunned admiration, watching as Luna’s semi hard cock slipped out inch by inch shocked by the fact that there was still more dick. Finally after what felt like forever, the tip of the alicorn’s cock slipped from her sister’s hole and hung limply between Luna’s legs.

With a dexterous application of magic, the dark alicorn grabbed a nearby toy and slipped into her sister’s distended hole. The huge plug was even bigger then Luna’s cock and despite this it slipped inside quickly and easily. Celestia moaned and stood stock straight until she felt the plug finally slip all way inside, forcing her hole closed and keeping every last drop of cum inside her.

With an approving nod, Luna moved around to the front of the mare and pulled out the bit. Celestia dutifully lowered herself down as much as she dared before using her magic to grip her sister’s cock and guide it into her mouth where she began to eagerly suck the titanic pole. Luna hummed approvingly, running a hoof through her sister’s mane and smiling. After her cock was clean and the bit was placed back in her mouth, Luna took a step back and smiled.

“It felt good to be watched, didn't it?” Luna asked, flashing a wide knowing smile.

Twilight’s eyes went wide but despite an intense desire to run suddenly filling her body she couldn't help but remain stationary, curious as to what Celestia would say. Her mentor smiled despite the bit in her mouth and nodded eagerly, purring loudly.

The dark alicorn smirked. “Me too. It felt good to show off my favorite pet.”

Celestia purred contently, nuzzling her sister’s side submissively.

“You can come out now you know.” Luna remarked, turning to the crack in the door.

The unicorn gulped, panic suddenly gripping her as she realized the scope of what she had just done. She rushed into the room, a terrified look on her face. “I am so sorry! I was late for tea so I just rushed in and…” She gulped, noticing the smirk on Luna’s face.

“Worry not dear Twilight. My pet enjoys being watched as she is fucked and I don't mind having an audience either.” She chuckled suddenly. “Isn't that right, pet?”

Celestia nodded eagerly, shuffling around in order to continue to nuzzle her sister’s side like an overgrown cat.

Luna scowled suddenly, pushing her sister slightly. “No need to be bashful, go on and display yourself for your student.”

Celestia blushed heavily, feeling the spreader bars being removed from her legs. With only a moment of hesitation the alicorn turned around, displaying the large, luxurious plug that filled her ass and held in her sister’s cum. Twilight could do nothing but gawk as the alicorn bent over, arching her back and spreading her legs, allowing the unicorn to get a good look at everything the solar princess had to offer.

Her pussy hung loose, her folds so slick with moisture that Twilight could see it drip occasionally. Her breasts had grown considerably and now hung low enough to nealy brush her knees when she walked. The alicorn shifted slightly, spreading her legs a little more and giving her ass a shake before standing back up and looking at Luna expectantly.

The dark alicorn nodded approvingly which only seemed to make Celestia blush harder, a happy little moan slipping past her bit.

The younger alicorn turned to Twilight, a proud grin on her face. “Like what you see?”

Twilight gulped. “M-maybe?” bit her lip and looked down, unable to meet the alicorn’s gaze.

“You wish that was you, don't you?” Luna asked teasingly, moving close to the unicorn and rubbing a hoof down her cheek.

The unicorn was frozen by indecision and she merely sat there, paralyzed until Luna pulled away, giggling all the while.

“How about this, why don't you observe my pet for the rest of the day and if you like what you see I will allow you to become my newest pet.” Luna leaned pulled the unicorn’s chin up, forcing their eyes to meet. “How does that sound?” She whispered.

Twilight could feel her head nodding in agreement before she could even form a coherent thought.

Luna clapped her hooves triumphantly. “Most excellent. First thing’s first, we must go water the flowers.”

Celestia blushed hard, pawing the ground nervously while Twilight merely cocked her head. “Why do we need to do that? Don't you have gardeners?”

Luna smirked, attaching a leash to Celestia’s collar and shedding her own leather outfit while leaving Celestia clad in her scandalous clothing. Once done she tugged at the leash, pulling Celestia towards the door and shooting Twilight an impish smile. “You’ll see.”

The two alicorns and one unicorn trotted out into the castle gardens, Twilight trotting a little further behind them, a little shocked by the expression on most ponies faces, or lack thereof. The maid’s, guards and even the odd chef didn't seem to even notice the fact that Celestia was heavily pregnant, the fact that she currently had a sex toy shoved up her ass or her rather risque outfit. Evidently this had been a thing for far longer than Twilight had realized.

As they made their way down the winding paths that dotted the garden, even a few of maids on break greated the alicorn’s warmly, deferring to Luna first, before acknowledging ‘her pet’. Twilight couldn't help blush as she caught herself imagining being in the same position Celestia was in, with her master being spoken to first.

It didn't take long for the alicorns to reach their destination, which was apparently a wide open field of prairie flowers at the eastern section of the garden. Once there Luna tugged the leash and pointed to the ground. “Go ahead, I know you need to.”

(If you want to skip the water sporting event, stop here and search, using (ctrl-f) "skipped!")

Twilight cocked her head, looking from Celestia to Luna. “Need to do what?” She asked innocently.

Luna smirked, gesturing to her pet. “Just watch.”

Celestia seemed hesitant, glancing at her student before looking back to her master, whom had a firm look in her eye. The white alicorn gulped and spread her back legs before squatting slightly. Twilight didn't seem to catch on and was about to ask a question when she suddenly heard the faint trickle of liquid splattering across the ground.

The unicorn gawked, staring in wide eyed confusion as her mentor and ruler of all of Equestria was forced to urinate in the palace gardens like a dog. The mare blushed hard, her gaze drawn to the dirt as Luna simply stood there and smirked, basking in her pet’s embarrassment.

“Now I know what your thinking Twilight and let me tell you right now that this was her idea.” Luna remarked, gesturing to the mare currently pissing in full view of anyone who might fly or wander by.

“Wha?” Twilight mumbled, staring in awe at the blushing, shameful expression on her teacher’s face. “Why?”

Luna chuckled. “She loves it, to be used and abused how I see fit, to be degraded and lowered to the absolute filth that she is. She loves every second I rut her in public, or force her to use her beloved gardens as an oversized litter box. She's a slut, and a filthy fucking whore and it's good that now everypony knows it.” Luna wound up and gave the piddling alicorn a smack on the ass hard enough to make her fat flanks shake and a moan to slip past her lips.

Celestia purred contently, her legs shivering from the unexpected pleasure of the lewd act.

Twilight meanwhile was stunned once more, a huge blush spreading across her cheeks as she watched her mentor finish pissing and stand up once more.

(Skipped!)

Luna merely chuckled, giving her pet one last slap across the ass before giving her leash a tug and walking towards the castle. “Come, day court is about to begin and we don't want to miss that, do we?”

Celestia nodded, following close behind her master, her head submissively low.

Twilight watched the two walk a few feet before trotting to catch up with them, her mind finally accepting what had happened. It was filthy, embarrassing and utterly debauched, and yet at the same time she couldn't help but feel a heat radiate from between her legs.

Luna sat triumphant upon the sole throne at the center of the enormous room, a small set of pillows with Celestia’s cutie mark printed on them laid on the ground just in front of it. Giving the collar a tug, Luna pulled her pet closer and pointed to the pillows before her throne. “Sit.” She commanded.

Celestia nodded, laying down before the throne in such a way that her head faced Luna’s crotch.

Twilight stood a bit back and to the right of the throne, allowing her a good angle to watch as Luna pulled out her semi hard cock and let it rest mere inches from Celestia’s nose.

The white alicorn whimpered pathetically, her nose flaring as she inhaled the potent scent of her master but was unable to pleasure her.

“Be silent, pet. I have to open court.” Luna reprimanded, turning her attention away from Celestia and towards a nonplussed court attendant who stood off to the side. “Raven Claw, what do we have first on the docket?”

The aide flipped a few papers before finding the one she was looking for. “Ah, it looks we have a pair of ponies hoping to get your blessing on their bill to allow herds.”

Luna nodded. “Good, it has been too long since the old ways were allowed. You may call them in.”

The aide nodded, scampering off to the side where she spoke to a guard out of earshot.

With her duties temporarily attentended to, Luna turned her attention to Celestia who was squirming uncomfortably on her pillows, utterly fixated on her master’s cock resting mere inches away. “You may suck my cock, but you are not allowed to cum unless it is with my express permission, understood?”

Celestia nodded eagerly and pressed her nose against Luna’s tip. The darker alicorn nodded, levitating her cock off the throne and allowing the alicorn to wrap her lips around the dark blue mottled cock. Luna let out a small hum of appreciation, feeling her pet move to swallow several inches of her enormous cock.

By now Twilight had worked a hoof between her legs and was beginning to masterbate furiously. She couldn't explain why but something about her mentor’s debauched behavior told her that nopony would notice if she relieved herself, even if it was in front of everyone. Normally she would have never done such a thing but the sheer debauchery on display throughout the day had made her incredibly hot and bothered and she had given up resisting the urge to masterbate.

Luna gave her a sly look from the corner of her eye, smirking at the sight of the small unicorn working her hoof between her legs as she watched Celestia throat fuck herself on her sister’s cock. “Enjoying the sight?” She asked.

Twilight nodded, watching in amazement as every last throbbing inch of alicorn meat slipped past Celestia’s lips and vanished down her throat. She didn't even stop when she reached the medial ring, merely slurping it down like some sort of delicious treat. The alicorn didn't stop even as her sister’s cock surged down her throat and forced her neck to bulge in order to accept the massive intruder.

The unicorn whimpered at the sight, staring in awe as Celestia debased herself so thoroughly in front of everypony. Even now the first two ponies were walking in, their heads held high, seemingly not even noticing the fact that their former princess was fellating her sister right in front of them with an eagerness that bordered on desperation.

The first pony bowed low, making a large sweeping motion with his hoof. His grey mane was short and parted to the side, his fur was a slightly lighter shade of grey and he wore only a simple vest. The pony to his right, an aged mare with long flowing gold hair bowed just as extravagantly, her form fitting red dress billowing with the motion.

“Rise, my friends.” Luna commanded, smiling at the two ponies that had come before her.

Celestia ignored them completely, her lips finally pressing against her sister’s crotch and humming contently, her eyes rolling back into her head. The massive size of Luna’s cock meant that the eldest alicorn’s throat had ballooned to a massive size and if Twilight concentrated she could even see the slight bulge that Luna’s medial ring made in Celestia’s throat. The fact that Luna’s monster cock even fit down Celestia’s throat was an achievement but to do it with such ease, and so quickly no less.

Twilight shook her head, a hoof tracing down her own throat as she imagined that same titanic cock getting stuffed inside her. “Wow.” She muttered, her hoof never stopping it's furious assault on her clit.

Unbeknownst to her pet, or Twilight, Luna had continued her conversation with the two supplicants, utterly ignoring her sister’s ministrations and Twilight’s stunned looks. “I can't overstate just how grateful I was to hear that the old ways still survived even until today.” Luna said with a smile.

The two ponies shared a grin. “It is our pleasure your highness. We have wanted to start a herd for many years but the paperwork always seemed to come back denied.” The stallion sighed, only to shake his head. “Which all stops now, thanks to you.”

Luna smiled, ignoring the sound of her sister made as she forced herself to gag repeatedly on Luna’s cock. “It is my pleasure and before you go just remember that if you run into problems just seek me out.” The dark alicorn smiled confidently and with that the two ponies bowed once more and left the way they came.

Hours past much like that first court appearance, with Celestia face fucking herself repeatedly while Luna stood impassive, hardly noticing her efforts. The lunar princess didn't even so much as flinch even as she came, her enormous balls emptying their load into Celestia’s eager gullet. Even with Luna’s loads measuring in at least three times the size of a normal stallion’s Celestia didn't seem to have any qualms with swallowing every last drop.

Indeed she hardly even seemed to notice, even as the hours passed and her stomach filled with seed. After several loads Twilight could tell the alicorn’s stomach bulged even more then usual, Luna’s titanic sack filling Celestia’s stomach to the brim. Throughout it all Celestia didn't seem to slow or even tire, sucking for hours upon hours without stop, always thirsty and ready to swallow another one of Luna’s potent loads.

Supper came and went and though Luna had a small meal delivered, Celestia ate nothing other than another load of hot cum. The sight of Luna dining politely while her sister continued to throat fuck herself was an incredibly arousing one and by now Twilight had gained an almost irresistible thirst that could not be quenched.

Every time she saw Luna’s cock twitch and another load of cum get dumped into Celestia’s belly, Twilight wished that was her. Throughout the day Twilight had cum several times, always trying her best to finish when Luna did while her mind imagined that her and Celestia had traded places and it was her that was getting to swallow Luna’s frequent loads.

Years of fantasies, of urges she had pushed into the back of her mind was now allowed to come to the forefront and Twilight embraced them readily. She maintained eye contact with a young guard as she played with her clit, watched on in envy as Celestia was allowed the honor of drinking another load of Luna’s cum. Every little action, each embarrassing moment came to become the most pleasurable moment’s of her life and soon enough her forehooves were nearly numb and her pussy ached.

Despite cumming more times then she cared to count, it wasn't enough, not while Luna’s perfect cock was mere feet away, always hard, and always ready. The ache only worsened as the day went on and she began to notice that Celestia did eventually become tired. Her fast and brutal pace that she had started with had gotten noticeably slower and after numerous loads and hours she finally seemed ready for a break.

Twilight couldn't help but feel a spike of envy, and oddly enough, annoyance. She wanted nothing more then to swallow Luna’s dick and take Celestia’s place and the fact that the white alicorn seemed unable or unwilling to attend to Luna’s whims angered the unicorn. She was right there, ready and willing to serve the dark alicorn and yet she wasn't, something was holding her back.

As the day had progressed she had cast aside more and more of what worried her, from what strangers would think of her to even the worries of her parents seeing her like that and yet there was something small that she still worried about. Despite her need, and the overwhelming desire to submit to Luna’s carnal desires, she couldn't muster the courage to move. She wanted to go up there, to offer her body to the dark alicorn and yet her hooves were rooted on the spot.

The last bit of the day winded down quickly, with Twilight remaining rooted to her spot next to the throne, having to substitute her magic for her hooves as they ached from near constant use. Her pussy fared no better and the ground under her had to be toweled off repeatedly due to just how many times she had cum.

As the last supplicant finally left, Celestia slowly pulled herself from Luna’s cock, having to take a step back in order to gain enough distance to pull her sister’s cock from her mouth. With a wet pop, the alicorn’s dick was free for the first time in hours and Luna shuddered at the the feeling of the cool air brushing her wet cock.

Celestia panted heavily, nearly collapsing to the ground, one hoof rubbing her sore throat as the other dutifully held Luna’s cock up, ensuring it didn't touch the cold marble throne. “You did well Celestia.” Luna remarked with a smile.

Celestia blushed, looking down and smiling faintly. “Thank you master.”

“Maybe by the end of the month you will be able to take me all day without pause. I hope you enjoyed your supper.”

The white alicorn giggled, rubbing her cum filled belly with delight. “Yes master.”

Luna nodded. “Good.” She turned suddenly, glancing over at the blushing mare sitting next to her throne. “Did you enjoy yourself Twilight?”

The unicorn nodded, pawing the floor nervously. “If I may, your highness.”

Luna blinked. “Of course, speak freely.”

“Can we go somewhere private?” The unicorn muttered weakly.

The alicorn tapped her chin and turned to her aide. “Raven, clear my eight o'clock.”

The aide nodded. “Yes your majesty, what should I tell the ambassador?”

“Tell him there was an emergency with one of my pets.”

“Excellent your highness. Is that all for today?”

Luna nodded. “Yes, thank you for your assistance and may you have a wonderful night.”

Raven blushed softly, scurrying away from her princess, her tail lowered in an attempt to hide her own arousal. Luna couldn't help but chuckle at the sight, licking her lips as she watched the young mare slip out a side entrance.

The lunar princess shook her head suddenly. “Come, we shall speak in my quarters.”

The unicorn and the pet nodded submissively, following the lunar mare, not noticing the devilish smile that crossed her face.

The two mares followed the alicorn closely, with Celestia casting the occasional hopeful glance over to Twilight. Catching on quickly, Twilight began to blush at the unasked question. Noticing her student’s shame, Celestia couldn't help but smile knowingly.

Luna opened the door to her chambers and held it open for the mares. “We can talk in the parlor room. Celestia go put some tea on, would you?”

The white alicorn blushed hotly and gave a short bow before turning to the kitchen.

Together the alicorn and unicorn settled into the parlor room, both mares grabbing small mounds of pillows and finding a comfortable spot with Twilight fidgeting for far longer than what was necessary. Luna rolled her eyes and magicly pushed the unicorn down into her spot. “Sit.”

The unicorn blushed but did as she was told, sitting down firmly and looking up to the smiling face of the lunar princess. “Luna I just…”

“Want to say how incredibly attractive you find me?” Luna offered.

Twilight gulped and nodded.

“And that you enjoyed yourself immensely today but you'd rather have switched places with Celestia?”

Twilight blushed hotter and nodded slowly.

Luna smirked and looked over to the kitchen where Celestia was returning with three cups filled with tea and a faux leather spiked collar with Twilight’s name on it. Luna took it in her hoof and gently offered it up to the blushing unicorn.

Luna leaned close, brushing a hoof down the side of Twilight’s face and leaning close enough to whisper huskily into her ear. “What do you say Twilight? Will you be mine?”

The unicorn gulped, and looked over to Celestia who stood just off to the side, her head held low and submissively, a huge smile on her face. More than that, it was her eyes that Twilight was interested in for within those gentle orbs contained such a boundless joy that Twilight knew right then and there what her answer was.

She lifted her head, allowing enough room for Luna to fasten the collar around her neck. “Yes, my master.”