Author's Note

Chapter contains the usual sex-caused transformations preceded by an immense amount of teasing, the pony version of paizuri (in other words, tit-tucking), magically gained dual futa and male organs, spitroasting, oral, vaginal, anal, and even a touch of cervical penetration.

Thanks yet again to prereaders AJ_Aficionado and Silentwoodfire for a quick turnaround on prereads. Enjoy!

Postal Passions: 9 - Courier Sex

A heady and hopelessly aroused Courier Six realized two things as she separated slightly from her longtime and long-married coworker, who, even if they’d been friends, had never shown the slightest interest in her or mares in general before.

One was that her belly breasts were now far larger than they’d been; two massive melon-sized mammaries that wobbled happily as they were pulled back from the equally engorged pair belonging to Express Shipment, the four mounds between them each topped by a single tight and fiercely tingling teat.

The other was that past proclivities suddenly no longer mattered to her as she found herself hungrily eyeing the large eagless organ offered to her—and how strange was that to even think, let alone behold?—not caring in the slightest that it was in fact a male organ that she would have considered utter anathema to even touch, let alone allow entry to her, but minutes earlier.

But none of it mattered then; not even her beloved Stetson hat falling off her head to bare her arrow scar—she’d swapped some stories with Applejack over the former; the farmer mare was the only other pony who could understand her attachment to it. All that did matter for all her unbearable arousal was to watch the griffon stallionhood approach.

To drink in its fine form with her eyes.

To feel it nestle between their bellies, pillowed by their massive milk producers in an act she’d never even heard of, let alone thought of before!

To worship its impressive length with her muzzle while drinking down as much eagless seed as she could from the griffon she’d liked and related to so well, for their shared pasts as couriers to isolated and even hostile realms.

To finally take it all into her and to allow herself to be claimed by it.

To be bred by it!

To be remade by it!

She exchanged a glance with Express Shipment, whose cheeks and body looked every bit as flushed and fertile as her, ready and eager to be rutted by their good griffon friend. Even as she awaited Owlia’s advance, she found herself wondering why she hadn’t tried to seduce the other mare before this; suddenly rueing all the time they could have spent doing the swirl on the backroom floor. Her horn still tingled fiercely from the oral attention it had received, now emitting her own, far weaker mating aura; one that was dwarfed by the sheer amount of sexual magic that Certified Mail—Certified Mail!—was giving off.

“Well! That’s quite an invitation, you two!” Owlia—or “Night Owl” as she now called herself in her new and undeniably alluring bat-griffon form—took a moment to savor the offer and pose they were presenting to her; her exotic eagless lionhood engorging even further under their hungry gazes while her slitted and glowing eyes flicked back and forth between their monumental mammaries and frantically winking marehoods.

“But you know, I’d hate to break Postal Service fraternization rules without permission! They’re your underlings and I’m just a lowly G-E rep assigned here, C-M! So can I convert them?” She turned to him, giving him a very affectionate and very feline rub of her cheek.

“By all means.” He returned the gesture with a smile. His pointed thestral teeth all but glowed in the blacklight mating aura emitted by his horn, which was now being reradiated by every quartz vein in the granite floor and the shards of shattered firegem lights that littered the room. “I’ll set my fraternization rules aside this once. After all, the sooner you change them, the sooner I can do them!”

“Huh? You mean you don’t want us… now?” Express Shipment sounded hurt as she stared in awe and frustrated desire at him, noting his enormous equine erection and impressively large thestralcorn form. He lacked wings, but had their eyes, darker coat and a longer horn, allowing him to both see and hide in darkness while broadcasting a powerful brand of mating magic unlike anything a mere unicorn could possess—one that not only turned them on so badly they were willing to tuck anything that moved, but even made them desire him!

“We want her, but we want you too, C-M!” Courier Six agreed somewhat frantically, winking her marehood at him repeatedly and trying to give him a tug with her unfocused aura. “You’ve always been fair to us, so you know we’ll treat you right!”

He offered the pair of lovelorn mares a nod of acknowledgment but nothing more. “Appreciate the offer. And I know you would. But sorry, not now. Or I should say, not yet!” He dropped his gruff manner for just a moment and his normally stern expression softened at their crestfallen faces. “No offense girls, but mares—or stallions, before you ask—never did it for me and Night Owl here finally showed me why—it turns out I’d been looking in the wrong places all along!

“Instead of hooves and horns, I needed wings and beaks and tasseled tails! Needed four teats and feathered chests!” He gave each eagless attribute his magical attention in turn, reverently caressing them, then gave Package Handler the same treatment to her hippogriff features as the two females stood flanking him, each closing their slitted eyes in deep pleasure to drink in his deliciously tingling touch and favor.

To the envy of the two unaltered mares and the shock of Priority Parcel, they allowed him to do whatever he wished to them, as Certified Male noticed the agape gaze of the latter and turned to him with a smirk. “That’s right—they’re mine! So eat your heart out, double-P!”

“Wha? Y-You tucked Postage Due? Even tucked Owlia?” Priority Parcel asked in a shaky voice as he lay helpless. He was still bound to the floor while his stallionhood stood rigid above his prone body, so stiff it was only able to wobble slightly as it left a steady stream of seed drooling onto his bare belly and matting his fur down.

“Yeah. Got a problem with that, colt-cuddler?” Certified Male was instantly back in his manager mode. He took great glee in Priority Parcel’s reaction as simply hearing the phrase caused the former self-described lady’s stallion to take a ragged breath; his prominent organ twitching hard as it gained another inch of girth, visibly pulsing as his body in general and sexual organs in particular continued to visibly absorb more and more magic from the environment around him. “Don’t worry, I haven’t forgotten about you! Give me a minute, and I’ll find somepony to tuck your tight little tail!”

Certified Male’s evil grin grew more pronounced as he watched the formerly boastful stallion’s body betray him, his organ squirting a small amount of seed and a tortured moan escaping his lips as his tail involuntarily flagged for a moment like a mare’s before he caught himself.

He then bit off his moan and tried to use his tail to cover his swelling apples along with the lower half of his equally unhideable erection, but that only lasted until his former manager enchanted another piece of his uniform to unravel and wrap around his tail, holding it away from his body to display his undeniable arousal for all to see. “Well, I can’t say you’ll impress many mares like that, double-P! But I imagine you’ll find some lucky stallion to make a mare out of you!” Certified Male went for the kill.

“Stop it… stop it!” Priority Parcel begged from his bound state as he felt himself going faint from the fantasies being forcibly fed him.

“Stop what? Stop revealing your true colt-cuddler self? Stop being the mare magnet you claim you were?” Certified Male further mocked him; Priority Parcel could only watch in disbelief as he magically felt up a very happy Owlia and Postage Due again, who responded with great and clearly unexaggerated enjoyment while on the floor before him, Courier Six and Express Shipment ignored their stallion coworker completely to look upon the scene longingly, all the while winking their marehoods in desperate enticement at the objects of their affection—their manager and his already-accepted herdmates.

“C-M? We love you!” Express Shipment told him, wishing she had the griffon or hippogriff features he so loved to offer him.

“And we want you!” Courier Six added without a hint of hesitation for her formerly fillyfooler ways, reaching down with her aura to spread their lips wider in open invitation.

“So many mares… so little time!” Certified Male sighed heavily in direct imitation and mockery of Priority Parcel, rubbing it in further as he then drove his point home by rearing up to mount Owlia directly. His entry elicited a sound that was half-hiss, half-squawk of pleasure as she immediately and eagerly accepted him, pushing back hard against him until he’d improbably sank himself in her to the hilt!

The three unaltered male workers looked upon the scene in both shock and awe as he began thrusting into her happily. His enormous apples slapped loudly against her slightly smaller ones while her wings went rigid in a visible sign of her enjoyment.

Package Handler watched the scene giddily as she slowly stroked herself to the sight. “Breed her, C-M…” she murmured to herself. “And then breed me!”

“And don’t forget us!” Express Shipment reminded him, her pose still one of open display and invitation with her mammaries partially pressed against Courier Six’s, her eyes shifting rapidly between the incredibly erotic interspecies display and the large organ wobbling and occasionally weakly spurting beneath Owlia’s belly, frustratingly out of reach.

“I haven’t!” he promised as he continued to thrust, who had used that line just days earlier and all but whimpered as he watched. “Though Night Owl here gets you first! And I’m really sorry to interrupt her, but those feline flanks of hers are just too tempting! But don’t worry—I’m a generous boss! I wouldn’t want to keep her from you, especially since she’s going to transform you!”

He licked her lips and then his horn glow brightened as he fed it a new spell, this one improbably self-levitating both himself and his eagless lover as one—a magical feat, Courier Six instantly knew, that was almost impossible to perform with your own weight, let alone with another, much larger and heavier being in tow!

For him to accomplish it meant he was now an incredibly powerful unicorn—thestralcorn, she instantly corrected herself—watching in spellbound amazement as he floated himself and Owlia a few feet over to straddle the two mares, settling her and her enticing eagless organ gently between them even as he continued to happily thrust into her, so deep in her he had to be pushing past her inner opening to be claiming her very womb!

His latest display of magical prowess only making them desire him further, both Courier Six and Express Shipment instantly moaned and pressed themselves into the offered gryphon stallionhood from both sides, eliciting another happy thestral hiss from her as she began thrusting gently between their prominent mounds of mammary flesh. The repeated passage of her shaft slickened and stimulated their surfaces with her seed and the rougher edges of her tapered head before she stepped forward slightly, pushing more of her shaft between them.

She soon had the middle third of its length nestled snugly between their teats, which only grew further as they absorbed more arousal and alteration magic from her soaking seed, allowing them to pillow even more of the exotic and enormous gryphon shaft between them.

They resumed their make-out session as they did so with a series of moans and increasingly frantic kisses, enjoying not just the feel of the half-eagle, half-leonine organ against their full belly breasts, but the friction of the top of the gently sloped bulb at its base pressed into their lower marehoods. It found and ground hard against each of their throbbing nubs at its base, sending a series of sensual shocks like erotic electricity through them that caused them to shudder with each thrust.

Through it all, their remaining unbound audience watched with keen interest and longing. Package Handler tried to remain politely silent as Certified Male was now both her boss and her stallion, but she could finally restrain herself no longer. “C-can I join in, too, C-M?” the former pegasus asked in a pleading tone. “Please…?”

He gave her a stern look belied by a wink. “Well, since you’ve been so punctual and efficient in your duties of late… I guess so!” he invited in mock gruffness from atop Night Owl’s back, holding his tail in her muzzle as he continued to claim her griffon marehood, then smirked.

“I’ll overlook the egregious violation of my no personal business during working hours policy just this once! And probably every time after…” he chuckled to himself as he exchanged a deep beak-to-muzzle kiss with his new hippogriff mare, enjoying the flagged-tail view of her as she departed, drinking in both her male and female attributes from behind.

“Thanks, C-M! So, is there room for one more?” Package Handler asked hopefully as she went to the other end of the two mares, rearing up slightly and flaring her wings for balance as she offered up her own hybrid and half-avian stallionhood to them.

“Huh…?” “How about wha—?” the sorely dazed and sensually distracted pair started to inquire before they noticed the drooling shaft hanging in front of their noses. The mixture of male musk and feminine scent instantly attracted their attention, causing their muzzles to water.

“There is from me!” Night Owl managed between grunts as her long tongue repeatedly licked her lengthened beak, even wrapping around it at times as she savored the feel of soft and yielding feminine flesh pillowed around the middle of her organ; its head spurting slightly with each fresh thrust of her equine stallion behind her. “And C-M? If you’re worried about this being fraternization or personal business, we’ll just call it… a team-building exercise!”

“That works!” Certified Male confirmed with a grin as off to the side, Priority Parcel continued to watch in disbelief, less over the incredibly unlikely scene than finding himself not with eyes for all the varied female attributes in evidence, but the male ones!“Never let it be said I never did anything for team morale!”

“Then join in, Package Handler! Looks like the duty roster has a spot for you to fill in front…” A breathless Night Owl offered, immensely enjoying both the substantial stallion meat filling her all the way to her inner nest as her own malehood lay neatly nestled between the two mares below, who worshipped it with their twin teats—how odd that they only had two instead of four! She’d have to change that—and further ground their bellies into the head of her griffon lionhood as they clutched each other in shared passion and pleasure.

They barely even heard the exchange above them as they began to nuzzle and lick the hybrid hippogriff shaft dangling before them, immediately drawing Package Handler further forward with a pleasured hiss as her tapered head disappeared inside Express Shipment’s muzzle with a impassioned moan. It was an act she’d never performed before, even on her own herd stallion, as it was something normally only associated with colt-cuddlers. But now?

But now, she found herself addicted to the act, wanting to see how much of its glorious girth she could accommodate in her muzzle. With every loving lick, she urged forth the future flood of seed she awaited from its already-drizzling tip; the incredibly potent and magically-charged male essence causing her very tongue to tingle fiercely as it absorbed the transformative magic within it and began to lengthen towards thestral dimensions within her muzzle.

For her part, Courier Six couldn’t believe what she was doing as she savored the smell and taste of the shaft a little further back, waiting her turn to sample the seed dripping from its tip—finding herself enjoying not one but two male organs at once, each belonging to her female coworkers, who’d been somehow magically altered and enhanced!—but she found she didn’t care in the least.

All that mattered to her was accepting the sensual gifts offered her; repaying the bonds of friendship she’d forged with her coworkers over the past year of Ponyville Post Office service, where she’d been taking a much needed break from the often-exhilarating but also exhausting and occasionally hazardous duties of the Moojave Express.

They were duties she very much wanted to go back to eventually, as she’d enjoyed frontier life and had an appetite for both exotic encounters and occasionally exploring dangerous lands. But were she to gain wings, she’d be able to do both much more efficiently; able to reach places and escape danger in ways she couldn’t now!

In the end, she found she wanted to rut not just to consummate the bonds of friendship she had forged with her new friends, not caring in the least about their forms or gender, but gain the bat-wings of her already-converted coworkers. And she somehow knew beyond all doubt that rutting them, even in ways she’d never rutted anypony—or any other creature!—before was the way to do it!

“M-my turn… l-let me taste it…” she begged Express Shipment, who mmphed around her mouthful but reluctantly gave up her hold of it in order to share with her friend, a string of drool leaving her connected to its tip even as Courier Six took her place.

“S-sorry girls…” Package Handler apologized from above them with a shaky voice. The two mares then heard a soft clicking of beaks above them as the former Owlia and Postage Due began exchanging their own unique kisses—the latter having at least a little problem with it, unused to having a beak until Owlia showed her the proper technique. “O-only got the one…”

“Just one, eh?” Certified Male spoke up from behind them as he began to pick up the pace of his thrusts. “You know, rutting with a single organ may be standard postal procedure, but I’m always in favor of whatever increases staff efficiency! So…” His horn glowed again as yet another spell was cast, this one causing a second organ to slowly sprout from beneath a surprised Package Handler’s belly—an identical twin to the first one as it rapidly assumed the dimensions of the original shaft, settling into a side-by-side configuration with it!

She moaned and shivered from head to toe, her ears and tail flicking frantically as she felt it deliciously stretch and grow. The new nerve endings all fired off at once as they announced their existence to her, leaving her with redoubled pleasure and a second shaft to offer her hungry colleagues. They didn’t question it but immediately availed themselves of the newly twinned pair, each taking a single organ for their own, working progressively more of it down their respective throats with fresh moans and nickers.

“Th-thanks, C-M!” Package Handler managed, barely even able to marvel anew at the incredible spellcasting prowess Certified Male suddenly showed.

“My pleasure. But I wouldn’t want to forget you, my sweet! I want you to transform them both at once! So…” He cast the same spell on Night Owl, whose eyes snapped open in surprise but shortly closed in deep pleasure just as Package Handler’s had, growling low in her throat as she felt exquisitely the second half-avian, half leonine organ materialize and grow.

“Wow… a two-for-one special!” the eagless G-E representative marveled as well once the process was complete as she backed off slightly from the two mares to reposition her second organ between them, but still couldn’t resist a tease. “But I thought you hated sales gimmicks like that, C-M!”

“Y-yeah… you wouldn’t even let us sell stamps at below face value! Not even when the Postmare General said to!” Package Handle piled on as she felt more of her newly twinned organs disappear down the throats of Express Shipment and Courier Six, eliciting a sudden churring sound from her hippogriff beak she’d never made before.

“Because I don’t believe in devaluing perfectly good stamps or other postal supplies! Deflowering, on the other hoof…” He then cast the same spell on himself, with one slight modification, causing his second organ to grow above the first one instead of beside it; its lengthening tip soon pressing against—and into!—the as-yet unused and untaken orifice that existed beneath Night Owl’s upraised tail.

Her eyes snapped open and she took a shuddering breath as she felt the swelling head push against it, almost instantly overcoming the initial resistance to slip inside her, pushing steadily deeper as it grew to reach the dimensions of its older brother, filling her in a whole new way.

“You’re determined to conquer me in every way imaginable, aren’t you, my fine and fertile stallion?” She licked her lips again at the illicit intrusion, shivering even as it warmed her further from within.

“Just as you are going to now conquer them!” he rejoined as he resumed thrusting with both organs now, somehow finding enough additional power and focus to levitate himself and his eagless mate backwards. He picked her up and then set her down further back to position her side-by-side griffon stallionhoods at the entrances of the two mares, magically yanking pillows and cushions out of the nearby employee lounge to scoot them under their flanks and prop them up.

“After so many years of being a bachelor, I finally want a herd—not of pony mares, but of griffon and hippogriff ones! So give me more mates, my delicious and darling Night Owl! I wish to spread your gifts to many!” he told her reverently.

“Now how could I refuse an offer like that…?” she asked almost rhetorically as Express Shipment and Courier Six clutched each other in renewed anticipation, their necks still stretched out to accept Package Handler’s full fourteen inches, slurping and sucking hungrily on them. “Of course, my mighty male!” she said as she moved forward, her tapered tips finding their openings and pushing inside with a series of shivers and very needy moans from the two mares, ones Package Handler could keenly feel on her own orally stimulated organs.

“So w-we will be a postal herd?” Package Handler asked as she repositioned her head to resume kissing Night Owl over them as she slowly moved forward, pushing progressively deeper into them until the beginnings of her bulbs were pressing against their glittering, grasping marehoods. ‘D-do we at least get discounts on supplies and services?”

“Certainly not!” Certified Male said emphatically even as he felt his climax start to build. “This is still a business, not a charity, after all! And all employees are expected to meet certain standards! Even you, Priority Parcel!” he proclaimed as he took a final, shuddering breath. “I’ve had quite enough of your loafing and backtalk, so just hang out for a minute while I finish business here—not that you have... a... choice!” he noted as he slammed his hips forward one final time to deliver a fresh duel-load of seed into his eagless lover, who climaxed herself with a very leonine roar.

A massive wave of corrupted mating magic erupted outwards from Certified Male’s horn along with a storm of deep purple and indigo sparkles. They settled like snow on the floor around them as Express Shipment and Courier Six cried out around a massive mouthful of Package Handler’s shafts and its subsequent eruption of very succulent seed, filling them from in front as well as behind.

Their bodies convulsed in pure orgasmic rapture as they began to acquire both thestral and griffon features, sprouting bat-wings and a second pair of equally large teats further up their bellies as their eyes turned slitted and muzzles swiftly transitioned into hippogriff beaks.

Their new hybrid bodies were further augmented by gaining an impressive set of male equipment that quickly grew to rival their already-converted colleagues, while Priority Parcel could only watch in equal parts helpless desire and terror, the sheer power of Certified Male’s magical climax having nearly triggered his own.

The fivesome slumped slightly when it was done, panting and leaning on each other heavily, exchanging a fresh round of gropes and kisses as the two newest members of Certified Male’s self-proclaimed herd inspected their new feminine and masculine attributes to his great appreciation, the stallion granting them his first affectionate kiss.

And then they all turned their newly glowing thestral eyes on a shaking, shivering Priority Parcel, a desire for payback and his very plot apparent in their predatory gazes.