Imperious Assertions

Lingering at the very fringes of the Nightmare Night gala, Celestia silently watched the festivities and sipped from her glass of punch. It was, for all intents and purposes, a momentous occasion, being the first celebration of the holiday since the defeat of Nightmare Moon, yet she had many mixed feelings about the event. While she was overjoyed with the festivities, being pleased with her sibling’s liberation and the fact that ponies could once again observe the fall festival, she’d quickly discovered how a culture could shift over a thousand years.

Unlike the Nightmare Nights of years past, a day almost exclusively enjoyed by colts and fillies, a great many adult stallions and mares had decided to take part in the merrymaking; in and of itself, there was nothing wrong with older ponies having fun, although their outfits were far from what she’d consider appropriate. Scantily clad equines frolicked about the party, drinking and laughing with one another, which left her feeling like the odd mare out - not because she didn’t want to enjoy herself, but because she was an alicorn.

Aside from being older and larger than everyone in attendance, as well as wielding wings and an impressive horn, her anatomy held another, far less public anomaly. While nearly everyone was aware of her nigh divine status and formidable magic, there were perilously few who knew about her titanic endowment - fortunately for her, she planned to keep it that way. Feeling the enchanted fabric of her panties strain under the immense weight of her cock, she shifted in place.

It wasn’t like she minded having a gargantuan stallionhood, since it had been a part of her for as long as she could remember, yet being a Princess meant that she was rarely afforded suitable opportunities to discuss her more intimate details. So far as she knew, she was the only pony in the land, alicorn or otherwise, who boasted was a mare with a dick - heck, even her sister didn’t have one! As she looked around at the young, attractive ponies surrounding her, while spirits flowed and tongues grew loose, her arousal had steadily grown more and more unbearable.

“You’re not gonna join?” a chipper voice inquired.

The innocuous question shook Celestia from her thoughts and nearly made her drop her glass. Glancing over her shoulder, seeing who’d snuck up on her, her mouth went dry. Of all the ponies in attendance, there was one she’d tried not to fixate on, yet that’s exactly who she found behind her. Clad in what she could only describe as a lusty parody of a cat outfit, Cadance beamed up at her.

Not only was the young alicorn significantly smaller than herself, but she seemed to have no reservations about showing off her body. Cadance’s costume, if such a slutty thing could be described as such, consisted of a tube top with a window to expose cleavage, a skirt that may have been four inches long, heels, and a pair of novelty cat ears, and whiskers painted on her face. It was an unseemly and whorish get-tup, yet the diarch found it captivating to a fault.

“I’ll take that as a no,” Cadance murmured, prompting the Princess to shake her head.

“I may join eventually,” Celestia began, tearing her eyes off the mare’s impressive bust. “Call me silly, but I don’t feel like my costume really fits in.”

The young alicorn waved her hand, attempting to dissuade the ruler’s concern. “I think it looks really cute on you, even if that hat doesn’t look comfortable.

Celestia fought the impulse to scrunch her snout. She’d done her best to piece together an ensemble, ultimately settling on a ridiculous baker’s outfit, complete with a skirt and a faux cake hat, yet its craftsmanship and theme were woefully out of place at the event. Forcing a smile, trying and failing not to look at her guest’s cleavage, she cleared her throat.

“Thanks, but your getup definitely has mine beat,” she sighed. “Might I ask where you acquired it?”

“Rarity made it for me!” Cadance eagerly bleated, lifting a hand and turning in place. “It fits perfectly, but I think the skirt is a bit too short.”

Without any warning whatsoever, facing away from her, the svelte mare bent over and peered back at her almost entirely exposed rump. Seeing the girl in such a compromising position would have been bad enough as it was, but it was only then that she noticed what the barely legal alicorn was wearing beneath the laughably short skirt. A black thong lay nestled between the cerise cheeks of the girl’s ass, giving her a fleeting glimpse of both the deliciously taught pucker and plump, rosy marehood that lurked there.

The sight caused her mouth to water and loins to stir, fanning the flames of her growing passion in an instant. “Quite the bold choice for an undergarment…”

“I’m just glad I didn’t go commando,” Cadance giggled, straightening back up and wheeling around, “but I was able to get away with going without a bra.”

Being markedly taller than almost any of her subjects was both a blessing and a curse, but Celestia thanked her lucky stars at that moment. The shameless mare tugged at her top and briefly flashing one fuschia nipple, giving her a tantalizing peek, before adjusting the garment and snickering. She’d tried her best to behave while being unintentionally teased, although the deliberate goading toed a very dangerous line.

“You know, I have half a mind to take you somewhere private and give you a stern talking to,” she softly stated, smirking down at her guest. “As the future Princess of Love, acting in such an unbecoming and slatternly fashion isn’t appropriate in the least.”

“I’m not the Princess of Love yet,” the young alicorn glibly countered. “I just graduated from high school a few months ago, so I’ve got plenty of time to…”

Waiting a moment for the girl to continue, Celestia cocked a brow. She’d only looked away for a second, checking to see if their little conversation had drawn any unwanted attention, yet she’d made a severe miscalculation. Following Cadance’s gaze, which seemed trained directly on her crotch, she peeked between her bosoms and noticed what held the to-be Princess’ attention. Despite wearing a pair of panties that could halt a runaway cart, there was an unmistakable bulge at her groin.

The realization that her mounting excitement was visible was regrettable, but things quickly took another, far more troubling turn. Staring in open awe, the young mare lifted an arm, reached out, and brazely caressed the titanic swell. The move was so fast and so unexpected that Celestia was left mentally stunned, yet her body responded instantaneously. Her stallionhood twitched angrily, threatening to destroy its silken confines, as the girl’s hand moved away.

“I…is that…” Cadance sputtered, glancing from the growing imprint beneath the Princess’ skirt to the ruler’s face.

Even with the less than ideal circumstances, Celestia had several options to choose from. The most prudent response would be to deny any curiosity and excuse herself, likely to go and vent her frustrations into a bucket she kept beside her bed, yet another, wholly inappropriate idea struck her out of the blue. Considering it had been decades since anyone had noticed the heat she was packing, and since her guest had only recently become legal, she could always see where the conversation went. Leaning forward, inspired by her mounting lust, she brought her muzzle to the mare’s ear.

“Well,” she whispered, grabbing Cadance’s wrist and guiding the girl’s hand back to her groin, “if you want to find out, follow me.”

After briefly fondling her package with the shocked mare’s palm, she released her guest, stood to her full height, and leisurely strutted away. Aside from having the endowment of a very gifted stallion, her libido was nearly insatiable - a fact that she’d struggled with for a small eternity. Glancing over her shoulder, seeing the young alicorn gnaw at her lip, she smirked.

Being the ruler of her people was deeply gratifying, but having to curtail her nearly insatiable sex drive was and always had been torturous - sure, she occasionally got chances to furtively vent her amorous frustrations, like the rare occasions when she got to interrogate captive changelings, but such instances were exceedingly rare. If the impending Princess of the Crystal Empire truly wanted to see what sort of equipment she was rocking, she wasn’t going to oppose her. Sauntering past the throng and down a short service corridor, she let herself into a storage room.

The party would be the perfect distraction for everyone in the castle, especially since she’d allowed the guard and service staff to attend, so the chances of her getting caught with Cadance were perilously slim - that was if the girl decided to follow her. Flicking on the light and taking stock of her surroundings, seeing just how much room she had to work with, she pursed her lips. The claustrophobic space was far from what she’d call romantic, lacking even the most basic amenities for anything lewd, but the privacy it afforded was good enough for her.

Seconds passed, leading to a minute or more, before the delicate sound of the doorknob jiggling caught her ear. Leaning against a rack of cleaning supplies, doing her best to act casual, she watched Cadance sheepishly poke her head into the room. There was no guarantee that anything of consequence would transpire, given that the young mare had been in a committed relationship with a young stallion named Shining Armor, yet the fact that she’d been bold enough to follow gave her a glimmer of perverse hope.

“So - um - what was it that you were going to show me?” Cadance bashfully inquired, stepping inside and closing the door behind herself.

Unable to conceal her wolfish grin, Celestia beckoned to the girl with a finger. “How about you come over here and find out - after all, we’re all royalty here.”

Seducing someone was an art, and testing a potential partner’s interests played a pivotal part. She could lust after someone as much as she pleased, going so far as to bribe or coerce them into her bed, yet that wasn’t nearly as fun as having an eager mate. As the mare timidly stepped forward, moving to within an arm’s reach of her, she patted her crotch.

“Go ahead, she doesn’t bite,” she giggled, playfully bucking her hips.

The look of uncertainty on Cadance’s face was absolutely exquisite, perfectly capturing the girl’s lascivious inquisitiveness, and it boded well for her. Remaining motionless, having crossed her arms over her considerably heavy chest, she watched the young alicorn inch closer and extend her arm. The sensation of slender digits on her package, even through the fabric of her skirt and panties, was richly rewarding, but she still had a long way to go before she was satisfied.

“Holy cow,” Cadance breathed, gently caressing the swelling length. “Do you mind if I - uh -”

“Please, be my guest,” Celestia demurely intoned.

Bending forward and grabbing her skirt, she steadily pulled the cloth up her alabaster legs. One of the greatest joys of having a monolithic marecock was seeing her lovers’ react to how absurdly well-hung she was. Moving at a glacial pace, savoring the girl’s widening eyes and enamored expression, she revealed her straining, absolutely stuffed pair of panties.

“Trust me,” she snickered, unable to shake her guest’s rapt attention, “it looks much more impressive when it’s not stuck in my undies.”

Be it from youthful hormones, sheer awe, or some odd form of adoration, Cadance sank to her knees and referently cupped the titanic bulge. “This can’t be real…”

“Oh it’s real,” Celestia corrected, holding her skirt up and out of the way. “If you don’t believe me, why don’t you give yourself a look?”

The young alicorn shakily hooking a finger over her waistband and began tugging the undergarment down, while she mutely watched. Her little ploy might never have worked, had Cadance been older and with better judgment, but that wasn’t the case. Teenagers had been and would always be a bit impetuous with carnal affairs, almost universally caving to their impulses, and this was no different. As her pink length was unveiled, ultimately springing from its enchanted confines, she snorted triumphantly.

“I told you it was real,” she haughtily hummed.

Proving someone wrong would have been good enough for a great many, but not her. Bucking her hips, she ground her semi-rigid length against the gobsmacked mare’s face. There was a theory she’d been sitting on for the better part of a decade, and Cadance had just unwittingly volunteered to be a test subject.

It didn’t happen often, but she’d occasionally found maids behaving oddly around her dirty bed sheets and used panties - in that she’d caught them seemingly smelling things that had been on or near her package. Though she’d initially tried to dismiss such incidents, telling herself that she’d just stumbled upon them in out-of-context moments, she couldn’t help but wonder if mares found her scent appealing. As she peered down at her all-too-willing guinea pig, seeing the girl breath deeply and shudder, her smile broadened.

“Does it smell good?” she asked, genuinely curious about the details.

Grinding her nose against the thick folds of flesh between the Princess’ shaft and weighty, pendulous balls, Cadance wantonly sniffed in the musk. “Y…yeah.”

It was a pleasing development, and the view of the girl’s face beneath her stallionhood was easily the hottest thing she’d seen in years, Celestia had failed to realize just how turned on her junior was. Lacking any prompting whatsoever, the young mare opened her mouth and licked the base of her length, while a soft pair of hands reached up to delicately hold and knead her balls. She’d figured Cadance had been a bit inquisitive about her, since her fellow alicorn lacked any additional hardware, but she wouldn’t have guessed the mare was that horny!

With her indecision fracturing under the weight of her bestial desires, she softly clutched the girl’s head and licked her lips. “It’ll get bigger if you suck it…”

The small request seemed to remind Cadance of what she was doing, bringing her affection to an abrupt halt. “I can’t,” she muttered, turning away, “I have a coltfriend.”

Celestia was well aware of her friend’s relationship status, but she wasn’t about to put things to a halt. She’d found a secluded area for them, Cadance’s tongue had already graced her balls, and there was no way she’d be able to stuff her cock back into her pants, now that she was almost fully erect. Leaning down and affectionately capturing the girl’s chin, turning the mare to face her, she put on her best come hither look.

“Don’t worry, I won’t tell him - besides, what’s a little fun between us girls,” she purred, flexing her pelvis and causing her shaft to bob.

Cadance hesitated, looking between the monolithic cock mere inches from her face and towards the door. She’d already accomplished her goal, having gotten a very close look at the diarch’s endowment, but her indecision smacked of wanting something more. Gulping, with the air still and silent around her, she peered up and into the Princess’ eyes.

“Only if you swear not to tell anyone about this,” she meekly insisted.

The sovereign dipped her head and closed her eyes, as she caressed the girl’s cheek. “You have my word.”

Hearing the reassurance that her relationship wasn’t going to get ruined, Cadance shuffled back and gingerly grasped the thick root of her host’s stallionhood. It was definitely the biggest dick she’d ever seen, let alone held, and the sheer enormity of it, paired with her impending infidelity, seemed to cause some internal conflict within her - still, she did not back away. As she knelt before the Princess, angling the immense appendage towards her face, she opened her jaw and slipped the broad cock-head into her maw.

A deep sigh escaped Celestia, as her tool was embraced by the warm, pouting lips and slick tongue of her guest. She hadn’t gotten a blowjob in longer than she cared to admit, and she had every intention of savoring the sensation - at least, for the time being. She knew herself well enough to realize that her patience wouldn’t last forever, but kicking things off too harshly may well derail her chances of actually getting her dick wet.

Leaning against the rack behind her, doing what she could to get comfortable, she kept her head lowered and enjoyed the show. Though Cadance was clearly struggling with her size, the sight more than made up for the lack of oral expertice. Simply watching the girl’s lips stretch around her shaft was enough to tickle her domineering side.

On the few occasions she’d gotten lucky enough to bed someone, she always ended up taking the reins sooner or later, and this was no different. Her hand drifted to the alicorn’s head, with her fingers drifting through the girl’s soft, pastel-colored mane. As she pulled her mate forward ever so slightly, driving her cock to the back of her adulterous lover’s throat, the sound of a stifled gag caused her heart to skip a beat.

Cadance’s pleading eyes sailed upward, mutely questioning what the Princess was doing, but it was too late. She’d asked for this, practically begged to venerate the diarch’s colossal stallionhood, and there was no going back. Weakly pushing at the dickmare’s thighs, as she breathed in yet more of the intoxicating aroma wafting from her host’s nethers, she reflexively swallowed and in so doing opened her throat.

Celestia was far from a prolific lover, but she knew an opening when she saw and felt one. Giving a relatively gentle thrust, while she held the mare’s head firmly in place, she drove her length into the girl’s snug, spasming gullet. A small part of her felt bad, seeing Cadance’s eyes water, yet that wasn’t nearly enough to deter her - that being said, she wasn’t going to be too rough.

“Just relax,” she cooed, flashing her teeth at her mate, “I know what I’m doing.”

Without waiting for a reply, she forced her hips forward. To Cadance’s credit, despite her momentary and silent protest, she took the intrusion like a champ. The mare’s feeble attempts to stop her gradually died, as she lowered one hand towards her groin. While she couldn’t see it, she knew exactly what the girl was reaching for.

Sure enough, while she steadily started rutting her lover’s face, the subtle fragrance of marehood wafted to her nose. The comprehension that Cadance had not only ceased her defiance but begun getting off to the experience effectively erased her restraint. Shifting her grip and lowering her free hand, grabbing the alicorn’s ears, she gave her first real thrust.

Forcing her girthy medial ring past the girl’s lips, feeling her mate’s jaw creak ever wider, she snorted. It was a bit of a shame that she was the only dickmare in existence, because she was genuinely curious if her aggressive nature was an inherent part of being endowed. She’d always done her best to be a loving and sympathetic ruler, yet those traits didn’t carry over to passionate matters.

Softly grunting to herself, all but hilting Cadance’s face, she fell into a steady rhythm. Though she didn’t notice it, the novelty ears and whiskers on her esteemed guest fell to the floor. The act of conquering someone, of asserting herself over another, had always felt right, even if she only rarely got to experience it. Looking from her lover’s tear-streaked face to the pair of barely restrained bosoms on the hedonistic teen’s chest, a sudden inspiration filled her.

“Play with your tits,” she snarled, withdrawing just enough to let the mare get a sip of air, “now.”

Much to her amusement, Cadance almost immediately complied. As she pulled her top beneath her breasts, fully exposing her rack, she pinched and twisted one nipple. Regardless of whether she’d done it because she’d been asked, had an exhibitionistic streak, or some combination of the two, the act was just what Celestia wanted. Setting her jaw, exceedingly pleased with the servile nature of her junior, she gradually lost herself to her mounting bliss.

Unfortunately for her, the extended dry spell she’d been suffering through, along with the excitement of getting action with a very attractive young lady, proved to be a fatal mix. It wasn’t long before she reached the point of no return, wantonly plowing Cadance’s muzzle, and there was no way for her to turn back. Transitioning from a series of deep, steady strokes to outright fucking the girl’s face, she set her jaw and railed against the welling rapture, but it was too late.

“Hope you - Nnnph - didn’t have dinner,” she growled.

Bracing her legs and leaning forward, uncaring for the state of her mate she hilted. Her cock throbbed wildly, with the veins along its length pulsing in tune with her heart, while the head of her length nearly doubled in size. Locked within Cadance’s esophagus, more than likely reaching the mare’s stomach, a veritable tsunami of thick, seething foal-batter surged through her shaft.

Cadance’s stomach slowly grew rounded under the sheer weight of so much cream, while her eyes rolled to the back of her head. In spite of being starved of oxygen, she fiercely pulled at her teat while finishing herself off. Hot nectar gushed to the floor beneath her, drenching her panties and seeping into the downy fur of her inner thighs, as she came mere seconds after the Princess.

The potent ecstasy coursing through Celestia gradually subsided, replaced by the warm, comforting euphoria of release. Unceremoniously withdrawing her length from her nearly comatose partner, dribbling a few errant ropes of jizz over the girl’s chest and shin, she wiped the sweat from her brow. She’d needed that nut more than she realized, and so she offered a hand to the coughing, sputtering mare.

“See, that wasn’t that bad,” she chuckled, helping the alicorn to her feet.

Cadance unsteadily stood and rubbed her neck, trying in vain to clear her doubtlessly sore throat. Her mane was disheveled, a bit of cum leaked from her nostrils, and she seemed none too steady or clearheaded, but most of the insanely vast load of spunk had made it into her sloshing, distended belly. Licking the jizz from her lips, she held onto the Princess’ arm for support.

“You could have - what was that?” she asked, craning her neck to look at the door.

Celestia followed the mare’s gaze for a split second, before the door opened. She’d nearly forgotten where they were, and the sudden intrusion nearly threw her into a panic. Thinking fast, she pulled the young alicorn’s top up, covering the girl’s chest, and stepped between her guest and the exit. She may have just finished with a very wild fling, and she was not about to let either of them get into any trouble for their fooling around.

Evoking her magic, without so much as looking down, she straightened her attire, stepped into her panties, and pulled the enchanted garment back into place. Mercifully for her, her flaccid stallionhood was easily tucked into the undergarment, and she wasn’t that disheveled. Fully prepared to explain why she and a fellow alicorn were secreted away in a supply room, guessing that a staff member had come in to fetch some cleaning supplies, she was not ready for who appeared through the doorway.

None other than Shining Armor stepped inside, looking around before noticing the towering Princess standing some half-dozen paces away. “Celestia, what are you -”

“I was simply dealing with a sticky situation,” she interrupted, stepping over to greet him. “It’s nothing to worry about, I assure -”

“Shining?!” Cadance croaked, drawing both the Princess and stallion’s attention.

Shining walked forward, past the towering diarch and towards his marefriend. “W…what in the world happened to you?”

Maybe it was the post-coitus clarity or bravado, but Celestia turned and placed a hand on his shoulder. “Like I said, I was dealing with a sticky situation. Dear Cadance had an unfortunate encounter with an eclair a few minutes ago, and she asked me to help her get tidied up - isn’t that right, Cadance?”

The mare stiffened, if only for a moment, before she enthusiastically nodded. “Y…yeah. I didn’t want to make a scene, and the bathroom was occupied, so Celestia said we could come here for some privacy.”

Celestia smiled and demurely nodded in turn, praying he’d buy the excuse. While it wasn’t the most reasonable explanation, since there were in fact several restrooms they could have used, it was just plausible enough to make sense. Seeing as how Cadance was a mare of some renown, and that she more than likely would have been embarrassed by a dessert-based faux pas, she felt that the alibi served its purpose.

“Huh,” he grunted, reaching out and gathering a dollop of seed on his finger. Lifting his arm and licking his digit clean, he winced. “No offence,” he infirmly snickered, looking up at the Princess, “but your cooks could use a little more sugar.”

Maintaining her smile, even though he’d just unwittingly tasted her cum, she nodded once again. “They do tend to be a little light with the sweetener, so I’ll speak to the chef tomorrow - anyways, we were just about to finish up, so if you don’t mind…”

She let the sentence hang, hoping he’d take the hint and leave. Deception aside, Cadance would need a few minutes to make herself presentable, and she was planning on helping her friend out; after getting the extraordinary opportunity to face-fuck another alicorn, a first in her rather extensive book, it was the least she could do. Playfully waving to the door, after the stallion continued to stand there like a bump on a log, she bashfully coughed.

“Don’t worry, I’ll have her back to you in a jiffy,” she cheerfully hummed.

“Oh - uh - alright. I’ll see you in a bit, Sweetheart,” he chirped, shooting forward to kiss his marefriend’s cheek.

Cadance blushed, though not for the reason Shining likely thought. Wheeling around and trotting to and out the door, he made his leave and left the pair of alicorns to their lonesome. His departure was a massive relief, and the two royals both exhaled in unison. If he’d truly known what they’d been up to, or if he’d shown up just a minute earlier, they’d both have been in hot water.

“That was close,” Cadance quietly lamented, pinching the bridge of her snout. “If he’d caught us, I don’t know - Eeep!”

Nonchalantly stooping down and grabbing the mare’s sopping-wet groin, nearly fingering the girl, Celestia ominously chuckled. “If I’d have known you’d get this turned on by gagging on my dick, he probably would have caught us…”

“Celestia,” the mare bleated, shoving the Princess’ arm away, “we can’t! I mean, a blowjob is one thing, but -”

“But what?” Celestia interjected, pulling the thong aside and slipping two digits into the girl’s cunt.

Shivering from head to toe, all but humping into the dickmare’s hand, Cadance bit her bottom lip. “B…but…”

“I’ll stop and get you cleaned up, but only if you answer something,” the Princess breathed. “How much bigger am I than Shining?”

Cadance faltered, unwilling or unable to give an answer, but her body betrayed her. The vice-like grip of her snatch spoke volumes, telling Cadance everything she needed to know. If the young alicorn was that tight after having been with Shining for years, they either rarely had sex or his stallionhood was nothing to write home about.

“Y…you,” she whimpered, subconsciously pawing at her chest.

Celestia could have pressed her amorous assault, stroking the girl’s clit until she was ready for a proper fucking, yet she relented. Carnal affairs were akin to a game of chess, and a direct approach wasn’t always the most prudent option. Sending power into her horn, drawing upon the veritable lexicon of spells she’d mastered over the centuries, she cleaned up her guest in a literal flash of golden light, turned, and sauntered to the exit. She’d put the ball in Cadance’s court, given the girl a mere taste of what she could deliver, and she was willing to wait for the wanton young mare to take the bait.

She didn’t look back or say another word, rejoining the party as if the entire incident hadn’t happened at all - well, for the most part. Prior to getting her rocks off, she’d been reserved and had stayed out of the limelight, but that changed at the drop of a hat; imbued with the dopamine derived from her climax, she rubbed elbows, told jokes, and even struck up conversations, but there was an ulterior motive to her socializing. Cadance was going to reappear, sooner or later, and she wanted the mare to see just what she was up to.

Sure enough, after a handful of minutes had passed, she spied her prize. Lingering at the very edge of the dance floor, seated at a table next to her coltfriend, Cadance continually slipped glances to the Princess. The sight would have been gratifying enough, but it was where the young alicorn was looking that interested Celestia; instead of paying attention to the diarch’s face, her focus seemed to be solely on the ruler’s groin.

Celestia played it off for a bit, letting the girl wonder if she’d noticed her, if only for a time. Feigning disinterest was a bit of a tactical gamble, one she played for nearly half an hour before finally strolling over to readdress her esteemed guest. Though the hour was late, and she’d already blown one load, she had every intention of seeing if Cadance was willing to go another round - preferably one where she sampled from the mare’s taut and assuredly tight snatch.

“I told you I wouldn’t keep her long,” she giggled, walking up and softly elbowing Shining’s shoulder. Seating herself beside the young alicorn, she plucked a champagne flute from the table. “So are you two enjoying yourselves?”

“Oh yeah, absolutely!” Shining proclaimed.

Feeling a hand slip over her thigh and towards her groin, out of view and beneath the table, Cadance nodded. “O…of course! It’s simply w…wonderful!”

“Well I’m happy to hear it,” Celestia murmured, stroking her friend’s barely covered cunt. She hadn’t initially planned to rub the mare’s balmy nethers, but she simply couldn’t help herself - that and a bit of extra affection couldn’t hurt her end goal. “Pray tell, have you two considered taking the next step in your relationship.”

“We’ve actually been talking about that for just some time!” the stallion proudly stated, grinning over at his marefriend. “As a matter of fact, would you mind if we have the ceremony here in Canterlot?”

“Not at all,” the Princess coolly responded, sliding her thumb over the girl’s winking clit. “In fact, I’d be honored if you two held your wedding and honeymoon here.”

“That’s not - Aaaah,” Cadance softly gasped, clamping her thighs around the dickmare’s hand.

Halting her motions, Celestia cocked her brow and turned to face the lightly shivering alicorn. “Cadance, are you alright? You look positively flushed!”

“I…I’m fine,” the girl stammered, “I may just need some fresh air.”

“Shining, would you mind if I accompany your fiance for a walk? Considering you’ve got a wedding to plan, I’d like to discuss a few ideas with your betrothed,” Celestia serenely noted, giving the delicate bud of flesh a final little flick before bringing her torment to a halt.

Pushing himself away from the table, Shining bowed. “After agreeing to let us have the ceremony and honeymoon here - by all means, be my guest.”

With the forthcoming husband’s blessing, having just bought herself at least a half an hour with Cadance, Celestia stood and offered her moistened hand to the mare. “Come on, let’s go and stretch those legs.”

“I won’t be too long,” Cadance insisted, standing and pressing herself to the Princess’ side. As she leaned across the table and pecked his nose, the diarch subtly squeezed her rear. “See you in a bit.”

The Princess waved goodbye, leading her guest through the throng and to one of the many exits of the ballroom. She momentarily toyed with the thought of bringing the mare to her room, although that wasn’t necessarily a prudent option; for starters, being seen so far from the festivities, while accompanied by her junior, would raise unwanted questions and eyebrows - secondly, and more prudently, there was a perfectly suitable area just a short walk from the celebration. Moving at a steadily faster pace, guiding the mare straight back to the storage room they’d occupied less than an hour ago, her pulse quickened.

It only took them a handful of minutes to reach their destination, yet their approach was totally different from last time. Rushing into the room, hauling the mare inside and nearly flinging her against one of the walls, Celestia took care to both lock and bar the door behind herself. There was no way in Tartarus anyone was going to interrupt them, and she did everything in her power to make sure it stayed that way.

“Judging from how soaked your thong is, it seems like you’re just as eager as I am,” she smugly intoned, wriggling her hips and slipping out of her panties.

Cadance fidgeted anxiously, trying in vain to cover her nethers, as she kept her eyes on the floor. “Maybe…”

Seeing the mare slipping out of her skirt, blood rushed to her stallionhood. “Well maybe you want to turn around and entice me a bit,” Celestia whispered, idly stroking her hardening length.

To her amazement, without saying a word, the mare complied. Turning in place, the girl bent over, spread her legs, and braced her arms against a nearly empty shelf. Seeing the soft, inviting rump and juicy marehood, zealously winking beneath the sheer fabric of the thong clinging to it, was quite possibly the hottest thing she’d ever seen, bringing her to full mast in the blink of an eye. The time for subtleties had come to an end, and so she dropped the coy act.

“If we do this, you know there’s no going back,” she added, flipping the girl’s skirt and outright ripping the panties from her hips.

Wiggling her ass from side to side, apparently unconcerned with her undergarment’s destruction, Cadance peeked over her shoulder. “I know…”

“If you do, you’ll realize that this will ruin you for your future husband,” the Princess flatly stated, bucking her hips and gliding her length between the girl’s thighs.

Cadance trembled, feeling the meaty pillar grind against her supple flesh, yet she somehow found the courage to speak. “Please…”

“Please what,” Celestia insisted, continuing to lightly dry-hump away.

A moment passed, before the alicorn summoned the strength to give voice to her adulterous desires. “I…I want to feel it inside me…”

Though Celestia toyed with the thought of teasing Cadance further, the prospect of despoiling the mare proved too much to bear - sure, she wouldn’t be the first to delve the would-be Princess’ depths, but she’d be stunned if she wasn’t the biggest. Stepping back and grasping the root of her tool, she brought the enormous tip of her dick to the girl’s entrance. A part of her almost felt bad for what she was about to do - then again, it wasn’t like she was the only one who wanted it.

Grabbing Cadance’s hips, while bracing her legs, she increased the pressure on her lover’s marehood. She had little doubt cramming her formidable tool into the girl would be no easy task, yet her tremendous strength and primal yearnings would not be denied. Harder and harder she pressed, ignoring the squirms of discomfort from her mate, until her efforts bore fruit. With an annoyed and particularly vehement thrust, the entire first third of her stallionhood forced its way into unfaithful mare’s velvety confines.

The results of the immense intrusion had a profound effect on the pair. While Celestia froze, taken aback by the warm and sinfully snug flesh embracing her, Cadance spontaneously climaxed on the spot. A guttural, whorish groan escaped the young alicorn, while climactic nectar gushed from her stuffed marehood. It was a grand display of juxtaposition - one which the Princess exploited to its fullest.

Rolling her hips back, freeing all but the very head of her cock, she steadied herself and gave a second plunge, then a third and a fourth, until she was steadily fucking her lover. She was fully aware that she’d brought her mate to finish simply by the initial penetration, a fact that stroked her ego and sent her passion from a fire into a roaring inferno, and she had every intention of seeing how many times she could make the girl cum. Falling into a steady, albeit relatively slow rhythm, she brought one hand to the mare’s dock.

“Oh my god,” Cadance groaned, recovering from the mind-boggling orasm she’d just suffered through.

“If you liked that,” Celestia began, “you’re gonna love this.”

Before Cadance could even think of a reply, she rammed every inch of her shaft into the girl. It would only have been a matter of time until she fully hilted, so she saw no harm in giving her mate the full experience sooner rather than later. As her unstoppable length bludgeoned its way through the mare’s cervix and into her womb, her perverse ambitions soared.

Her medial ring rested atop Cadance’s g-spot, the tip of her shaft lie buried within her mate’s foal-factory, and her nuts rested against the mare’s bulging, quivering clit, while the ruthless parts of her mind insidiously came to the fore. As much as she would have liked to relish the experience, taking her time and systematically warming up her mate, her id had other ideas. Slowly ratcheting up both the speed and force of her thrusts, she caved to her latent urges.

The air grew thick with the aroma of musk and sex, while a symphony of grunts, groans, and whimpers reverberated through the chamber. Without being prompted in the slightest, compelled by her own depravity, Cadance supported herself on one arm, tugged her top down, and began wantonly toying with her freed bosoms - a sight which did nothing to hinder Celestia’s almost tyrannical treatment. Pulling on the girl’s dock with one hand, as she continued to rut the mare, the Princess’ smirk grew twisted.

“I would tell you to tighten up, but Shining’s baby dick left you almost virginal for me,” she sneered, slapping her mate’s ass.

“It’s - Aaaaahn - only because you’re huge,” Cadance rebuked, throwing her ass back to meet the dickmare’s pounding hips.

“Is it?” Celestia inquired, slowing her pace. “Or is it because you’re a needy slut who yearns for a real dick to rut you.”

Cadance hesitated, her blush deepening, while she continued desperately fucking herself on the Princess. “D…don’t say that…”

“If it’s not true,” Celestia jeered, grinding to a halt, “we can stop.”

“No,” the girl bleated, clenching around the length entombed within her, “don’t stop!”

Celestia had no intention of stopping, despite having done the contrary to hear the lustful anguish of her lover, and so she flew into a frenzy. She really didn’t consider herself a bad pony, and it wasn’t like she held anything against Shining Armor, but her longing to claim a mate of her own was ineffable. In a rare moment of weakness, she fully submitted to her wants and unleashed every ounce of her sexual might.

Her hips became a blur, repeatedly slamming against the mare’s cushiony backside, as she was reduced to little more than a beast. Her desires, kept in check for eons, roared to the fore, eclipsing the genteel creature she was at heart. In that moment, hearing Cadance beg for her, sensing how badly the girl wanted it, she lost herself.

Cadance howled, climaxing again and again, while her interior was remolded to accommodate the colossal stallionhood rearranging her insides. Celestia knew that there were few if any who could endure such harsh treatment, having one of her past flings end in a rather awkward trip to the clinic, but she knew better. As an alicorn, a being of impressive and preternatural durability, the slatternly mare could endure her full fury.

On and on she went, slipping into a rut lust, until things came to a head. While she wasn’t sure how long she’d been going at it, the telltale signs of her impending release granted her a sliver of awareness.Virtually jackhammering into the girl from behind, with a growing pool of cooling marish juices beneath her, she set her jaw and attempted to stave off the inevitable, but it was no use.

Her pistoning length throbbed, flaring and locking itself in Cadance’s womb, seconds before she reached her limit. It was too late to pull out, even if she wanted to, and her lover was about to experience something none other had - the full force of her climax. Pints of scalding, virile seed coursed through her shaft, erupting into the mare’s core, cementing her place as the she-stud she was.

The moment the Princess peaked, Cadance nearly collapsed under the devastating weight of a ruinous climax. Her eyes rolled wildly, saliva dangled from her chin, and her mouth hung open in a silent scream, as her knees buckled and quaked. Though Celestia had no way of knowing it at the time, lost to her bliss, the poor mare teetered on the cusp of blacking out.

Shot after shot, the small alicorn’s abdomen gurgled and ballooned outward, while her womb was filled with an unimaginable amount of cum. The sheer volume of seed was insane, easily rivaling or eclipsing that of several stallions over, yet the Princess’ output only slowed after the mare looked positively gravid. Barely able to stand, only supported by the gargantuan cock impaling her, it was all she could do to breathe.

As she languidly came down from the high of her release, leaning to the side and seeing her mate’s bloated gut, a sudden inspiration came to Celestia. Since they were at a costume party, looking out of character was expected - as such, she capitalized on the moment. With her prodigious output gradually easing, yet not stopping entirely, she hastily summoned a butt-plug from her stash of marital aids, withdrew her pulsing stallionhood, and crammed the sex toy into her lover’s battered, gaping cunt.

Simply plugging Cadance would have been enough to please her, knowing her gift would be left to marinate within the fertile mare, but she wasn’t done yet - not by a long shot. Stroking herself off, she painted the alicorn’s back, behind, and upper thighs with the ropes of her jizz; it was a rash, childish, and foolish move, yet the joy of properly marking her property eclipsed her better judgement. With her masterpiece finished, grinning from ear, she slapped the girl’s ass.

“You won’t take that plug out until morning,” she muttered, releasing the alicorn and stepping away.

Collapsing to the cum-covered floor, slathered from head to toe in a cocktail of orgasmic juices and thick spunk, Cadance numbly nodded. “Y…yes.”

“And since I’m generous enough to let you hold your wedding in my castle, I think it’s only fair that you give me weekly visits until then,” Celestia added, kneeling and grabbing the mare’s face. “When you find out you’re carrying my foal, you will simply tell Shining that it’s his - in fact, it may not be a bad idea for you to bed him tomorrow night, since I probably just knocked you up.”

Only then becoming aware of the gravitas of what she’d done, Cadance clutched her stomach. “I…I don’t -”

“I assure you, any heir your sire with me would be superior to what your fiance could produce - after all, I’m simply better than him. Now then,” she continued, standing and offering the speechless mare her hand, “as for the remainder of the evening, if you’re asked, simply claim that you helped yourself to the dessert bar - that or be honest and tell everyone that you’re an expectant kitty.”

“What about the mess?” Cadance fretfully asked, attempting to wipe the cum from her mane.

“I -” Celestia stopped herself. She had been about to offer teleporting them to her chamber for a shower, but a novel, entirely sinful notion took root. “We can walk to my room to get you cleaned up.”

Cadance looked like she was going to protest, but she said nothing - instead dipping her head and halfheartedly covering herself. Whatever resistance she had was gone, demolished along with her marehood, and some part of her must have realized it. Shakily leaning against the Princess, willing to risk the indignation of being caught looking like a well-used whore, she awaited her host to lead the way.

Turning to the door, while draping an arm over the mare’s slickened shoulders, Celestia chuckled to herself. “Good mare…”