With one cock in his large, swaying ass, and a second plunging into his muzzle, Big Mac rocked between a pair of dark, wholly unreformed changeling drones. Most ponies would have been terrified to find themselves facing not one but a half-dozen of the parasitic, shapeshifting insects, but he wasn’t most ponies and this was far from a typical encounter. As a vibrant green stallionhood sank into his throat, choking him of air and causing his eyes to water, he thought back to what had brought him to this moment.

It hadn’t been a month prior that he’d reached the end of his rope. Sugar Belle had left him, wanting more time and attention than he could offer, the apple harvest was in full swing, and his family was just as much of a hooffull as they’d ever been. If he’d still had his marefriend, maybe things would be different, maybe he would’ve been able to blow off some steam and get some much-needed stress relief - alas, it wasn’t meant to be.

After weeks of trying his hoof at trying to patch up his crumbling love life, having gone on a number of dates and even bringing himself to attend a few mixers, he finally struck it big - at least that’s what he’d thought at the time. Quite literally bumping into a sprightly young mare at the Ponyville Hayburger, a pegasus named Shady, his life took an abrupt and profoundly interesting turn. He and the seductive pony had chatted for hours, laughing over milkshakes and carrying on like they’d known one another for years, until things came to a head.

As the hour drew late, merely hoping to to take her on a proper date that weekend, he was blindsided by a wildly salacious offer. Not only had Shady fawned over how attractive he was, she’d asked that he accompany her back to her estate outside of town. Overjoyed and more than a little excited, he enthusiastically agreed and trotted back to her place alongside her.

Living on the northern side of Ponyville, just within the outskirts of the Everfree forest, her manor was as expansive as it was foreboding. Truth be told, he hadn’t even known the mansion existed, having walked by the desolate trail that led to its gates hundreds of times without giving it a second thought. Undeterred by the structure’s weathered exterior and overgrown lawn, blinded by his libido, he followed her inside.

No sooner had the doors closed behind him than he was set upon by a sextet of drones. Between the near pitch blackness inside the manor, the blinding speed of the attack, and being caught totally and completely unprepared, he never stood a chance. Biting and pinning him to the floor, overpowering him, the group of insects overpowered him in an almost laughable fashion. His optimism and hope for an evening of fun was gone in an instant, held down by the gang of snickering, buzzing changelings, yet he was quick to discover they meant him no harm - quite the opposite, they truly did wish to show him a good time.

He’d read about changeling venom in books and in school, learning how it increased one’s sensitivity and dulled one’s inhibitions, but he’d never been unlucky enough to experience it before - that was until that night. Less than a minute after being ambushed and bitten several times by the changelings, their toxin being driven through his system by his thundering heart, he felt the intoxicating effects take root. His stallionhood grew so hard that it hurt, his nipples went erect, and his backdoor hungrily seized upon itself, while his thoughts grew clouded by lustful imaginings. It was at that moment, losing himself to the contemptible poison, that the drones gave him an offer - if he became their plaything and devoted himself to them, they’d show him a world of pleasure like he’d never known.

Stuck between a rock and a hard place, compelled by the insatiable and unnaturally augmented urge to sate his desires, he’d agreed to the band in the blink of an eye. It wasn’t so much that he wanted to serve the changelings - he needed to. Even the libido of his hormonally charged youth paled in comparison to what they’d done to him, and so he became their pet, an outlet for their sexual urges, and he took his first steps down the rabbit hole.

Though he was as straight as an arrow, never having thought of stallions in a lewd manner a single time, his heterosexuality was the first thing to go. The drones, led by a changeling named Tarsus, had sucked him off, played with his teats, and teased his ass like a well-trained harem. He’d be lying if he said their treatment wasn’t incredible, yet their methods grew increasingly more perverse as time drew on.

What started as blowjobs and tender kisses, mostly receiving their affection as a red-blooded stallion would, gradually took a turn. He honestly couldn’t say when the first drone had fucked his ass, nor when he’d initially wrapped his lips around one of their cocks, but it was of little consequence. Little by little, day after day, he was molded from a strong-willed, domineering earth pony to a slatternly, submissive bitch.

“Yes,” Talon hissed, shuffling forward and entombing his length in Mac’s face. “Take it like the sow you are.”

Wantonly pounding the pony’s backside, his plump balls slapping against the massive, carmine furred cheeks, Fang set his jaw. “She’s become quite the eager little thing ~ hasn’t she.”

“Indeed,” Tarsus grunted, drawing his tongue up Mac’s throbbing stallionhood before backing away, “although I think it’s time she properly learned her place. Everypony stop…” The group of drones faltered yet continued stroking themselves or making use of Mac, prompting their leader to snarl and stomp his hoof. “Stop now or else…”

Only begrudgingly drawing to a halt, the changelings withdrew from Mac. With the cool air gracing his gaped backdoor, his length twitching, and the taste of pre-cum coating his palate, he glanced around in confusion. In spite of having been fucked by each and every one of the drones more times than he could count, the shred of his remaining dignity wouldn’t allow him to ask why they’d stopped using him.

Trotting over to him, Tarsus drew a hoof up his chin. “We have a little gift for you, my pet,” he began, glancing back and motioning to one of his compatriots. As a drone stepped forward and presented a bag, he flashed his teeth at Mac. “Roll over and present yourself.”

Without question, Mac threw his weight to the side and crashed onto his back. He’d been getting toyed with and screwed for the better part of an hour, yet the drones hadn’t envenomed him or allowed him to cum a single time. Desperate for some relief, he watched the changeling’s horn ignite with harlequin energy.

“You’re our mare ~ aren’t you?” Tarsus softly inquired, surrounding Mac’s stallionhood with a harlequin aura. The pony nodded and gnawed his lip, his hips reflexively jerking at the magical touch on his colossal endowment. “Good. Considering you realize you’re not a stallion, I believe it’s time we address that obscene thing dangling between your legs.”

Before Mac could ask what the changeling meant, his tool was compacted by the drone’s sorcerous grip. Forced to and into its sheath, struggling in vain against Tarsus’ arcane might, his cock gradually went flaccid and complied with the sadistic shapeshifter’s wishes. While the process was far from comfortable or pleasant, he wasn’t about to protest the sudden and wholly unexpected turn of events.

Opening and fishing into the bag, Tarsus withdrew his hoof and produced a steel ring. “Do you know what this is?”

Studying the little apparatus for a moment, Mac shook his head. Prior to meeting the perverse group of parasites, he’d been a bit of a sexual neophyte. The only pony he’d ever bedded was Sugar Belle - even then, his experience had been relegated to missionary and doggy style. It was only when the metal hoop slipped over his balls and soft stallionhood, impeding the blood flow and kept him from getting hard, was he given the slightest idea of what the drones had in store for him.

“It’s called cock ring,” Tarsus continued, taking the key and slipping it back into the bag, “and it’s designed to help mares like you know their place.”

Talon stepped over and brazenly drew a hoof over Mac’s thigh, causing the chaste stallion to shiver. “Mares don’t have a dick, they have a clit. From now on, if you want to get off,” he tittered, shifting his foreleg to caress the pony’s slickened, twitching pucker, “you’re going to have to do it the right way.”

Mac’s jaw flapped uselessly, as he looked between the changelings and his flaccid member. He should have been rock-hard, yet the steel band prevented him from getting an erection. To make matters worse, the ache in his loins mingled with his insatiable urge to cum. Swallowing hard, only vaguely aware of Fang inching closer, he was shaken from his thoughts when a bag of what looked like clothes landed on his belly.

Nonchalantly turning away and trotting to a recliner, with his associates following suit, Tarsis grunted and pointed to a doorway. “There’s a bathroom down there. Unless you want to leave for the night, I suggest you take those gifts and make yourself presentable.”

Awkwardly getting his hooves under himself, Mac held the bag in his teeth and stood. There was no way in Tartarus he was going to head back to the farm, not when he’d yet to get any gratification. As he trotted by the reclining drones, keenly aware of their soft laughing and lustful eyes upon him, he hung his head and refused to look at him. Just because he was going to be obedient didn’t mean he was happy with the development.

He closed and locked the bathroom door behind himself, ensuring he’d have some small modicum of privacy, before sat the bag on the sink to inspect its contents. As strange as it may have sounded, he’d always assumed the shapeshifters were happy with his looks; the group would screw him, tease him, and make use of him like he was their personal whore, despite his colossal stature and muscular build, yet apparently his natural looks had lost a bit of their appeal. Peering down at what he could only describe as a stripper’s outfit, he felt his mouth go dry.

Several months prior, back before he’d met the band of licentious drones, he would have never thought he’d wear anything more than his trusty yolk or maybe some fantasy armor while playing Ogres and Oubliettes with his friends, but that time had come to an end. As he fished out garment after garment, taking stock of his new wardrobe, a strange thrill ran up his spine. While he’d never considered dressing up like a slutty mare, he couldn’t deny the novel excitement he felt looking at the ensemble.

Fishnet stockings, a thong, leather choker, and a tube top, all in a matching, harlequin green, lay arrayed before him, but his hosts hadn’t stopped there. Alongside the attire, the drones had given him some makeup to accompany his new look. Lifting his gaze and peeking at his reflection, anxious and excited as to how he’d look after prettying himself up, he uneasily smirked. If the changelings wanted him to make himself presentable, having gone so far as to acquire a new getup for him, who was he to oppose?

Though it only took a hoofful of minutes to get himself dressed, slipping the fishnets over his legs and the thong into the cleft of his tush, applying the makeup was far more difficult than he would have imagined. It was only because he’d seen his sister’s getting ready for formal events that he had the slightest clue that he was doing - still, after a bit of trial and error, he managed to make himself presentable. Brushing his golden mane away from his face, he stared at the mirror with open awe.

He’d always considered himself a fairly masculine pony, bearing an impressive build and imposing height, yet that was the case no longer. Gone was the beefy pony he was so used to seeing, replaced by a slatternly, huge, and very shapely femcolt. He would never have guessed that a few clothes would make much of a difference, but the attire accentuated his curves in all the right ways.

Turning in place, his curiosity at his new look grew tinged with arousal. Had he been able to get hard, he had no doubt that his stallionhood would have pressed its way out of his thong and sprung into the open air - interestingly enough, due to the steel band around his softened shaft, the only sign that he was male was a pronounced bulge at his groin. Feeling his needy hole pulse against the slender fabric between his buns, he sheepishly smiled and turned to the exit.

While he wasn’t sure exactly what plans the drones had for him, he hoped they’d be as happy with his transformation as he was. It was hard to explain, but prancing out in the negligee was strangely empowering, making the debauched situation even more degenerate than it already was. More than ready to pick up where he’d left off, getting rutted senseless by the gang, he came to a shuddering halt when he entered the living room.

Lounging on the sofa, recliner, and on the four, six sets of glimmering, insect-like eyes settled upon him, yet that wasn’t what held his attention. The changelings, each and every one, were lazily stroking themselves off; though such an occurrence wasn’t uncommon, since they routinely masturbated while waiting for a turn with him, their endowments were not the same as when he’d left. Sporting stallionhoods that dwarfed his own, each nearly as big as his leg, they smirked and started to move.

Casually trotting over to face the stunned stallion, while his friends circled the pony, Tarsis drew his forked tongue over his lips. “Quite fetching, if I do say so myself. Now that you’re dressed appropriately for the part, how about you show us how a good little mare begs.”

It had taken some time for Mac to learn the ropes, systematically destroying his pride so he could sate his carnal wants, but he knew just what to do. Strutting over to the center of the floor, he kicked the coffee table to the side, snatched a number of pillows from the sofa, and pressed his chest to the floor. There were times when he’d savor taking each of the shapeshifters individually, letting them claim him one after the other, yet he wished for nothing more than to test himself and see if he could see just how much dick he could handle.

The changelings followed and gathered around him, undressing him with their eyes. It may have been his imagination, or possibly he was just distracted by the utterly gargantuan dicks bobbing eagerly around him, but he could swear the gang was even more excited than usual. Resting on his chest, spreading and bracing his hind legs, he reached back and prized his tush open to give the crowd an unfettered view of his backside.

As the throng of shapeshifters drew nearer, approvingly humming and slapping their stallionhoods against their bellies, he twisted his head and inspected each of his gracious, monstrously hung hosts. In all the time he’d spent with the drones, aside from being initially baited by one of them, they’d never once used their metamorphic abilities in his presence, which made their sudden enhancements all the more jarring. Ordinarily equipped with what he’d call averagely sized endowments, they’d all but literally rocked his world, but that was the case no longer. Now he wondering if he could even accommodate a single one of their dicks, he was filled with nervous excitement.

“She really is quite appealing like this,” one changeling noted, caressing the pony’s backside.

A second followed suit, running a hoof over her back. “Should we reward her for her obedience?”

Tarsus nodded, his smile never wavering, and brought his snout down and to her neck. “A splendid idea.”

Acting like a pack of wolves, the group drew nearer and sank their fangs into Mac’s flesh. The venom from a single changeling was enough to impede his judgment and heighten his arousal by several degrees, yet they clearly wished for more than that. Bitten by no fewer than five of the parasites, their toxin coursing through his veins, he nearly climaxed on the spot.

His perfectly flaccid stallionhood dangled uselessly toward the floor, jerking and leaking a stream of pre-cum, while his backdoor angrily seized upon itself. As Tarsis stepped over his lowered head, he found himself staring down the impossibly thick length of the leader’s tool. He’d never been much of a conversationalist, letting his actions speak for himself, and this moment was no exception. Like the well trained whore he was, he shot forward and wrapped his pouting lips around the throbbing shaft of changeling meat.

With a contented sigh, Tarsis wasted no time in returning the feminized stallion’s zeal. Bucking his hips, he drove his shaft to and into Mac’s throat - a throat which was only barely able to manage the immense intrusion. Ignoring the stifled gags and spasming airway around his dick, he steadied himself and started face-fucking the pony without a care in the world.

Mac’s eyes watered, his lungs burned, and he felt as though his heart may beat through his chest - all while the choker around his bulging neck made the intrusion all the more intense. He’d gotten quite good at sucking his newfound friends off - heck, he actually giving blowjobs more than receiving them, yet this was vastly more intense than anything he’d done with the group. With the taste of fresh sweat on his tongue, musk tickling his nostrils, and keenly aware he’d only managed to fellate half of Tarsis’ length, he was distracted when a weight crashed upon his hips.

Darned if he could tell who had mounted him, but the sensation was unmistakable. As a pair of hooves locked over his ample hips and held him tight, he felt it - the warm, slick head of a huge cock pressing against his entrance. Irrespective of his ability to breathe, he tensed his legs, swung his titanic ass back, and impaled himself on the shapeshifter prodding at his tush.

He would have been overjoyed to be fucked by anypony with a stallionhood of any size, but the colossal member that popped into him - stars above, the combination of discomfort and pleasure was profound beyond his wildest imaginings. He quaked from hoof to head, nearly losing control of his legs, as his limp, flopping prick gushed his cum to the floor. His spontaneous climax did nothing to deter the insectile ponies around him, causing them to jeer and laugh at how pitiful he was.

“She even squirts like a mare,” Fang guffawed, grinding his length against the quivering pony’s flank.

Another drone grunted in disapproval, his amusement shifting to frustration. “She should’ve been on her back for that. Somepony’s going to have to clean up after this…”

Tarsis slowed, his medial ring having just slipped past the pony’s strained lips, and he abruptly stepped back. As his length was pulled from Mac’s muzzle, allowing the stallion to weakly cough, he grinned. “She can lick it up after we’re finished with her, but you may be onto something. Nail, pull out and lay on the floor.”

Drawing to a halt, yet staying on Mac’s back, Nail growled. “But I just -”

“Did I stutter?” Tarsis interrupted. “Lay on your back now…” Only begrudgingly doing as he was told, Nail dismounted, shuffled to the side, and eased himself onto the floor.

The departure of the swollen, vascular shaft from Mac’s ass was tragic, downright heartbreaking, and he stifled a whimper because of it - fortunately for him, as he glanced over and saw Nail’s pillar-like tool pointing toward the ceiling, he realized how to remedy the situation. Straightening up and stepping over, straddling the supine drone, he hastily got into position and slammed his hips downward. Though he was nearly frantic with desire, his aim was true.

His tush pounded against Nail’s hips, driving the air from the changeling’s lungs, as he filled his backside with the vividly colored behemoth. He could hardly believe he’d hilted the giant stallionhood in a single motion, feeling the cock-head coming to rest just beneath his rib cage, but he wasn’t about to stop and relish the moment - not by a long shot. Easing himself down, sandwiching the shapeshifter between his bulk and the floor, he wantonly fucked himself on the comparably tiny stud.

If he’d been smaller than he was, shorter and with a more slender build, he doubted he’d be able to handle one, let alone several of the big-dicked changelings - fortunately for him, that wasn’t a concern. Peering over at Tarsis, seeing he held the leader’s attention, he closed his eyes, opened his mouth, and invitingly extended his tongue. If the parasite didn’t get the hint and come over to make use of his muzzle, he felt certain that one of his other mates would.

Sure enough, Tarsis trotted over, reared back, and pressed his hooves to Mac’s shoulder’s. He was almost twice as big as any of the shapeshifters, allowing the chief drone to stand and plunge into his snout. With both his gullet and rump stretched to their limit, he held himself steady while the pair started plowing him.

Attempting to pleasure two creatures at once would have been difficult under any circumstances, but doing so while envenomed with a powerful aphrodisiac was all but impossible. Try as he might, his amorous juggling act was gradually outstripped by the domineering drones movements - not that he was complaining. He wasn’t opposed to taking an active role with the stallions, especially when they’d given him a command to do so, yet he much preferred when they took the reins and made him their bitch.

Only occasionally given a sip of air, his sinuses were flooded with the ambrosial, heady scent of sex and masculine pheromones. At first, when he’d initially been ambushed by the changelings, he’d found their smell a bit off putting, but that felt like a lifetime ago. The drones’ natural fragrance had ingrained itself in his mind, entwining with his libido and acting as a powerful stimulant in and of itself.

“F…fuck, she’s tight,” Nail grunted.

Coming up behind the pony, doubtlessly admiring the crimson stallion’s stuffed, slickened pucker, Fang affectionately squeezed the Mac’s tush. “We should get a camera next time. What do you think she’d do if we sent pictures of this to her family?”

“They - Mmmmph - probably wouldn’t be surprised - after all, considering she lives with them, I’m sure they know she’s a total slut,” Tarsis grunted, inching forward and pounding away at Mac’s face.

The mention of his family struck Mac like a gong, cutting through his mental fog. He had no way to reply or say a word, yet he was terrified at the prospect of his sisters or Granny Smith discovering the depths of his depravity - not because of what they’d say to him, but because he had no caving to anypony’s wishes but his own. Even though he’d cum mere minutes ago, the thought of his secret being revealed pushed him closer to his limit.

Bracing his legs and driving his hips upward, slapping his nuts against the pony’s rump, Nail hissed. “She just tightened up too. Maybe she wants everypony to know what she’s been doing…”

“Wait,” Tarsis snarled, inching back and freeing his stallionhood from Mac’s snout. “You want everypony to know how much of a whore you are ~” he purred, lifting the pony’s chin, “don’t you?”

The shapeshifters stopped in their tracks, silently studying him, as glanced between them. “Ah…Ah…”

“If you’re honest,” Talon added, mounting the stupefied stallion, “we’ll give you a reward.”

“That’s right,” Tarsis hummed, reassuming his position over the stallion and slapping the pony’s face with his saliva and pre-cum slathered cock. “Nopony likes dishonest mares who lie to themselves, so why don’t you come clean with us - don’t worry, there’s nothing to be ashamed of.”

Staring down the drone’s length, a band of drool hanging from his chin, Mac could practically feel a part of himself break. If word got out that he was a butt-slut, let alone one for unreformed changelings, there was an all too real chance his life would be ruined - nevertheless, he was too far gone. Realizing he couldn’t live without his myriad of lovers using and abusing him on a regular basis, he gulped.

“Ah…Ah want it,” he murmured, his deep, sonorous voice standing in stark contrast to his marish aesthetic.

“Good mare,” the leader approvingly mused, bringing his stallionhood to the pony’s muzzle. “Go ahead and help yourself.”

Mac’s head shot forward, his muzzle agape, as he unabashedly drove the dick into his throat. He’d known there was no turning back, that he’d reached a threshold from which there was no turning back, yet he’d never given voice to that fact. Mopping the heavenly length with his lips, swallowing down mouthfuls of thick, cloying pre-cum, he was unaware that Talon had something more in mind than just teasing him.

The pressure on his struggling backdoor mounted, as the second drone pressed against his filled hole. Confusion, fear, and anticipation warred for control of his thoughts, only then comprehending what the changeling was trying to do, but it was too late. After a hoofful of halfhearted thrusts, unable to make purchase, Talon finally managed to cram his dick into his stretched, spasming entrance.

He climaxed instantaneously, gurgling and blowing his load over Nail’s abdomen, while his eyes rolled to the back of his head. Being filled by a single gigantic stallionhood was incredible, yet having two in his ass bordered on the insane. Wracked with unfathomable bliss, struggling to remain conscious, it was all he could do to keep himself from collapsing.

The drones giggled to themselves, taking the briefest pause from their lecherous endeavor, before they started to move in tandem. Like a well-oiled machine, heedless or uncaring of his stricken state, they fucked him like he was little more than a living, breathing sex-toy. Knowing that they didn’t care about him, only seeing him as a plaything, should have been a turn-off, yet that knowledge only served to heighten his rapture.

With his masochistic yearnings reaching a fevered pitch, he lost himself to the ecstasy of finding his place in the world. He may have looked like a big, strong, masculine stallion, but that couldn’t be further from the truth. Though it had taken a gang of nefarious changelings to show him the light, revealing who and what he truly was, he embraced his role with open hooves.

Adrift in a sea of pure, unrefined pleasure, with one orgasm bleeding into the next, his grasp of reality grew tenuous. As he dipped in and out of consciousness, he found himself moved from place to place in the living room. A blink and he was draped over the arm of the sofa - moments later, he was wildly riding one of the drones; like a kaleidoscope of hedonistic delights, his life was reduced to one exchange after another.

By the time things had calmed down, finally given a moment of clarity, what had to have been hours had passed. The room was nearly pitch black, only lit by the dim moonlight from outside, while he stared up at the ceiling and heaved air into his chest. With the taste of cum on his lips, coughing and sputtering foal-batter from his throat and nostrils, he shakily lifted his head to peek down at himself.

Nearly every inch of him was coated in seed, from his mane to his hooves, yet that wasn’t what caused him to breathlessly gasp. His initial assumption that the changelings had almost exclusively cum on him, baptizing him in their essence, was proven false as he spied his distended belly. As unbelievable as it was, he looked absolutely gravid.

With no way of knowing just how much spunk was sloshing around inside himself, he was left to presume he’d been filled with gallons of jizz. As he struggled to look past his expansive, sloshing stomach, trying and failing to look at his rear, he scrunched his snout. He couldn’t exactly see it, but he felt something lodged in his ass.

“It’s a plug,” Tarsis coolly remarked, smiling at the pony from his chair. “Wouldn’t want you to waste our generous deposits ~ would we?”

As disgusted as he was by the development, all Mac felt was arousal. Rolling over and getting to his hooves, he uneasily stood and listed to one side - only barely supporting himself on the nearby sofa. He could already tell he was going to be sore in the morning, all too familiar with the numbness in his limbs, but he hadn’t the slightest bit of regret. Instinctively stumbling toward the restroom, he stopped in his tracks when he heard Tarsis softly tsking behind him.

“If you’re going to relieve yourself, you’re not going to do it here,” the leader began, hopping from his seat and moving to the cum-bloated stallion’s side. “How about you wear that plug home and do it there; you can do that for me ~ can’t you?”

His cheeks darkening, Mac bashfully nodded. Given the extremely late hour, he should be able to avoid anypony if he circled town and took the long way home. Secretly thrilled with the command, yet shameful of how deplorable he must look, he languidly turned and moved to the exit. Though it would be a long walk back to the farm, his legs felt like jelly, and the weight of so much seed in his belly made trotting an arduous affair, he’d be able to manage - at any rate, that’s what he told himself. Just as he reached the doorway, feeling the cool night air against his dampened hide, Tarsis cleared his throat and drew his attention back.

“When you come back tomorrow, and you will come back tomorrow, how about you bring a friend,” the drone softly but firmly noted, shooting a wink at the unsteady pony.

“E…eeyup,” Mac wearily responded.

He had no idea how he’d be able to convince somepony to join him in the depths of depravity, realizing the changelings wished to have another plaything, although that wasn’t going to stop him from trying. If the studs wished for him to have an accomplice, that’s what he was going to do. Shambling out into the moonlit darkness, he wondered who he’d bring back to the manor with him.

Next Chapter: Thunderlane Estimated time remaining: 4 Hours, 14 Minutes