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Lapis wore nothing but a blue collar around his neck, but he didn't need much else. The rest of his body was bare, gleaming white fur and rosy skin from head to toe. The moonlight ferret's heart pounded in his chest, his whiskers twitched, and his tail flailed in nervous excitement. One of his paws fiddled with the collar, the other one toyed with patches of his fur. He stood between two large steel doors that enclosed him in a narrow, empty intermediate chamber. Bare brick walls and black metal, the separation between his past and his future, impenetrable and soundproof. The tiny, glowing gem on his collar was his only link to the outside world, his only way back to safety in case something went wrong, the only thing that kept him safe because no armor in the world could protect him from what waited behind this door.

He flinched and squeaked as the mechanism of the second door went to life with a rattling clank, slowly sliding into the monumental wall to reveal an interior that could best be described as volcanic. A gust of hot, burnt air blew into his little chamber and enveloped him, temporarily robbing him of his breath and making him sweat. The walls and floor of the impressive hall that had opened up before him were clad with black basalt tiles, the ceiling hanging high above. A couple of tiny, round portholes on two of the walls immersed the room in an eerie twilight. But the main attraction lay in the center, the demonic owner of this abode, the massive four-legged hellhound Rakkar, sprawled over a pedestal of smoothed basalt and lying half on his side. One of his ears flicked up as his only greeting, and he didn't bother to move much more than that.

Lapis's heart beat faster and harder than ever as he stumbled into the demon's chamber. He winced as the steel door shut close behind him, trapping him with the creature, but he tried not to let his fear show. He knew that the beast wouldn't harm him and that he was safe. He hadn't trained for years for nothing, but those thoughts could only reassure him so much. The canine lying in front of him wasn't only large, he also looked savage. The hellhound's musclebound body was shrouded in a shining pelt of black and orange-brown, the fur on his back darker than on his belly. Ribbed black horns protruded from his skull, arched back and tapering down to sharp tips, a long, slender tail protruded from his rear, ending in a hooked spade with shining sharp edges, and his muzzle stood slightly ajar with a toothy grin, exposing his long, pointy canines and a strand of drool. His mighty feet were armed with wicked claws and his ankles adorned with fluffy brown tufts. Countless scars were scattered about his body, insignia of his previous fights that he had kept despite his innate demonic healing capabilities, and between his legs rested a big greasy sheath and a pair of massive, black testes that clearly identified him as a potent male.

Finally, some movement came into the colossus. Rakkar opened his glowing sulfur eyes and stared at Lapis with a gaze that froze the blood in his veins. The demon's menacing aura was unmistakable, putting the ferret on the defensive and making him wish that he was anywhere but here. It was becoming increasingly difficult to withstand his domineering influence, the glare of the beast's demonic eyes piercing through his eyes, skull, and right into his spirit, assaulting his sanity and twisting his mind. The hellhound was testing him, tried to pry him open and get access to his memories, deepest secrets, and darkest desires. However, Lapis hadn't come unprepared. In fact, he was here because he was one of the few with enough willpower to withstand the hellhound, even if only barely.

Finally, a crude grin emerged on the canine's face and he lauded the ferret's effort with a chuckle. "They didn't send some helpless cannon fodder. How fun! Your mental resistance is impressive, little one, and while I doubt you could withstand my claws for even as much as a second, you are safe from them because I need you. Now, don't be a stranger and come closer, I won't bite," the demon growled with a powerful voice. "Unless you want me to." The mental assault abated, Lapis's urge to turn around and run away vanished, and he breathed with cautious relief, but didn't let his guard down. The demon embraced him in peace and with a smidge of respect, but the ferret knew that he wasn't his friend. Rakkar would shamelessly abuse any opening in his mental defense and break him if he got the chance, but he would make sure that he never got that chance. That's why he had been chosen for this task.

The ferret reluctantly walked closer, the dark basalt under his feet heating up as he neared the fiery canine. With each step, the influence of the demon's innate aura of depravity grew, as did his overbearing, masculine scent, a mixture of pungent, ashen, burnt, musky, and potent aromas. Lapis involuntarily began to drool and his arousal blossomed, his mind slowly losing cohesion as his thoughts drifted into lecherous fantasies and lusty illusions. He felt unnaturally warm and his entire body flushed with horny heat. His rosy shaft swelled with blood and grew fully erect within seconds. The hellhound couldn't read his memories or control his mind, but he could control his body and spawn intense desires.

When Lapis finally reached Rakkar, his lust became too strong to bear. It weakened his legs and forced him on his knees. Thinking had become a difficult task, his breath was a heavy wheezing, and his lips were rendered incapable of speech. His blue eyes were glued to the canine's dusky sheath, craving what lay hidden inside. Only the very tip of the male's ebony penis peeked out of the oily fur, already shining with sweat and a bead of pre, enough to make his mouth water.

"You could resist my powers, but you can't resist my body. How quaint, but remarkably appropriate. We're going to have so much fun together, my toy. I will show you the perks of submitting to a demon and I will bless you with so many of my beautiful offspring. You will grow and swell with my hellspawn, give birth to cohorts of healthy half-demons to fill the ranks of your people's pitiful army," Rakkar purred raunchily. "That's why you were sent here in the first place, isn't it?"

Lapis nodded with tightly pressed lips. The canine had described his mission, which was simultaneously his deepest desire. He was being paid for something that most sane people wouldn't even consider in their wildest dreams. It required a special kind of crazy to voluntarily submit to a demon.

"Are you absolutely sure you want to do this? I really don't want you to have a change of mind halfway through. I don't feel like dealing with a disobedient brat, and I also don't have the time or patience to break your mind in."

The ferret nodded again, a jittery smile forming on his lips. Becoming a hellhound's mate was the primary reason why he was here. The thing he most wanted and he would only get this opportunity once in his entire life. It would cost him a lot, not quite his soul, but his body and future, and the process wasn't without its significant risks. In return, he would receive the protection of a mighty being as well as a whole range of powers and abilities. The ultimate deal. "Yes, absolutely sure" he responded shakily.

A surprisingly playful smirk emerged on Rakkar's face, showing genuine happiness, seemingly without malicious intent. The ferret's affirmation fueled the gigantic beast with buoyant excitement, and he finally rose from his lazy posture. "Splendid! I cannot wait to break you in, little one. Tell me, do you have a name?"

"Lapis."

"A fitting name for a pretty boy. But before we all get too excited, I want to give you a little welcome gift, Lapis. Everybody shall know whose toy you're going to be. They may not know my name, but they will recognize my scent," he snickered with a greedy leer and sauntered around the kneeling ferret. Lapis timidly tracked his stride and flinched when the hellhound suddenly stopped and raised a hind leg. He stared at him with his muzzle ajar, trying to discern Rakkar's intentions. By the time he grasped them, a resounding hiss filled his ears and a rich stream of dark golden liquid emerged from the male's sheath, arching across the air before it hit its target square in the face, part of it splashing into his muzzle and filling it with a tangy, musky flavor. The ferret jumped a little but made no attempt to evade the sudden shower. Just what he should've expected from a depraved demon.

The large quadruped continued pissing on him, gyrating his hips to spread his aim and cover every last bit of Lapis with his hot, odorous urine. Within seconds, the powerful stream drenched his whole body and infused his pelt with the hellhound's essence. However, he soon realized that this treatment went beyond the outermost layers. Most liquid simply ran down his fur and skin, dripping and splattering on the heated basalt and disappearing in the cracks, some of it stayed on him, some of it escaped in a cloud of heated steam, but a small yet not insignificant part soaked into his skin and imbued his deeper tissue, stimulating his nerve endings and stirring a powerful tingling. The ferret knew that these were just the first signs of corruption and only the beginning of the inevitable conversion process that came with his submission to Rakkar.

Even after half a minute, the canine was far from finished and still had plenty of juice to offer, turning Lapis's radiant white fur into a yellow soggy mess. He embraced the wet gift with surging excitement, his rosy erection bouncing and jumping as he wallowed in the sensations of Rakkar's piss, the invigorating warmth, the intoxicating smell, and the strangely arousing tingle of corruption. His initial reluctance shifted to depraved desire, his body turning and twisting on its own to catch as much of the musky gold as he could. The first taste had made him thirsty for more. He opened his muzzle wide and greedily gulped down whatever he could catch. Soon, the same corruption that affected his skin also seeped into the walls of his stomach and expanded in his chest with a pervasive glow.

By the time the shower subsided, the ferret had devolved into a horny, trembling mess, squirming and writhing on the basalt in a puddle of draining piss. He squeaked and moaned with bliss, captivated by the corruption. His shaft quaked and drooled pre, about to burst from the demon's wet blessing alone.

The hellhound dropped his leg with a resounding thud and approached the shaking male. "I must admit, I didn't expect you to take it that well," he snickered. "The corruption is taking effect faster than expected. It appears that we are highly compatible. This is going to make the next part all the more enjoyable." He bent over the soaked ferret, his big snout twitching and his nostrils flaring as he inhaled the pungent scent he had layered onto him. There was a warm smile on his big muzzle, his yellow eyes glowing with satisfaction.

Lapis groaned when the demon licked over his face, pressing his muzzle on his and giving him a sloppy kiss. Still dazed by lust and so achingly close, he didn't offer much resistance, didn't even waste a single thought on his imminent corruption, and eagerly embraced the hellhound's affection. The canine shoved his broad, wet tongue into his muzzle, and curiously licked his gums and toyed with his much feebler tongue before he rammed his organ further down his throat. The ferret gagged and groaned softly, smiling in a lusty stupor, blissfully oblivious to his partner's intentions until his eyes suddenly turned from sulfur to solid black. Now, it would become clear whether he was really ready.

His groan turned into a muffled howl and his eyes widened in despair. His body reared up and writhed violently as the demon poured a scalding hot, tarry liquid down his throat, spewing it forth in gurgling gushes. The thick substance inexorably plugged his throat and muffled his voice, creeping down his esophagus and filling his stomach. His chest felt like it had been filled with lava and an incomprehensible pain washed through his nervous system, overwhelming him with a mind-shattering flash that turned everything into fuzzy numbness. The following minutes passed in a blurry trance. None of the ferret's senses worked anymore. The only thing he could still feel was the meandering growth and spread of the corrupting sludge as it expanded from his stomach, seizing his torso, his limbs, and his tail, enveloping his brain and filling it with depraved thoughts and suggestions.

As soon as every fiber and cell of his body was infused with Rakkar's demonic essence, the hellhound broke the kiss and pulled back. The ferret was completely paralyzed as the corruption festered in his flesh, hardly able to comprehend what was happening. After what felt like eons, enough time for empires to rise and fall, the numbing fog cleared and his senses returned. Bit by bit, he regained control over his body. First, he managed to curl a finger, then to lift an arm, and finally, in a coordinated effort, to pull himself from the ground and back on his knees. His head was still spinning from the ordeal, but he could already feel the new power the demon had given him, a fleeting, impalpable energy that he would hopefully learn to control. Aside from that, he also felt indescribably hot and horny, bursting with pent-up lust.

The hellhound regarded Lapis with an appreciative grin. "Wow, color me impressed. You took the kiss exceptionally well. I can already sense your new powers, raw and unpolished. Oh, it will be a delight to teach you. But let us take care of the main part of the deal first. I have gifted you powers only few mortals possess, and in return, I will claim your body and make you a perfect mother for my offspring. But don't worry, you'll love the changes," he promised as he placed a paw on Lapis's back. Another surge of corruption poured from the soft touch of the demon's paw pad and radiated through his spine.

"First of all, what good is a mother without a means to carry her offspring? Let me fix that for you," Rakkar snickered. Lapis's guts creaked and shifted, switching, growing, and bending to make space for something. The strange shifting became more intense and although there was no pain. A strange itch blossomed inside his loins, making him groan in horny confusion. The powerful heat emanated from his changing flesh and flooded his mind and body. His eyes wandered over to the hellhound's fluffy underside, and he discovered his partner's swelling arousal. A thick, black penis dangled from his crotch, throbbing and inflating with every beat of his heart. From the looks of it, it was only half erect, but it was already as big as his forearm, glistening with sweat and drooling pre with heavy, hanging strands.

Once Rakkar was done, he nodded with a pleased grunt and moved his paw over to the ferret's waist. A jolt raced through his slender body as something broke with a nasty crack and he lost all control over his legs. He looked down and was unsettled to find that they had gone limp, dangling downward as his hips inflated and expanded. "Your pelvis is just too small for my dick to go in, and too small for my offspring to come out. We can't have that, can we?" the hellhound grunted, rubbing the smaller male's hips as if he was shaping clay, growing them bigger and wider until he was satisfied with the change.

Then he affectionately licked Lapis across the face, pressed his massive paw right on his rigid shaft, and slowly rubbed it, leaving a trail of sticky pre and tepid heat. The pent-up male moaned with forbidden pleasure as the demon poured more of his corrupting energy into his cock, infusing the tissue and swelling it just like his hips. An unexpected but not unwelcome blessing, even if he wondered why the demon was doing this. "This bond is about more than just me breeding you. Don't get me wrong, I'm going to have a lot of fun screwing you silly and beyond, but sometimes, even a demon wants to get some dick," Rakkar growled, jerking his toy off with relish.

The ferret whimpered as his dick grew and inflated, leaking and twitching with need, but the hellhound was still not done. "You will quickly learn that there is no enough for demons, everything must be excessive. When I let you fuck me, I really want to feel you." The slab of meat resting on Lapis's belly became heavy and unwieldy, too large to stand upright even when fully erect, always sagging under its own weight. His bloated glans slowly crept over his midriff, across his chest, and only when it reached his chin, the demon stopped stroking and inflating it.

The growth had brought Lapis so incredibly close again. His urethra opened and discharged a wet wad of pre over his face. He desperately craved relief and his lust ultimately got the better of him. He grabbed his humongous pink cock with both paws and stroked it violently, running them up and down with as much force as he could muster. With the monstrosity literally poking his chin, it didn't take his horny mind very long to pick up on the tempting offer. He lowered his head, parted his lips, and wrapped his muzzle around his own gigantic cock, sucking on it and drinking pre straight from the tap. His tongue danced around the glans, flicking through his cumslit and digging into it.

The ferret had just begun to make out with his penis when he already came hard. His body shook and his nuts churned up a fat load, pumping it through his ridiculously elongated dick and spurting it into his mouth. The powerful orgasm muddied his mind and almost made him pass out from pleasure, weakening his cohesion and threatening to dislodge his glans from his muzzle, but fortunately, Rakkar stepped in and steadied Lapis, making sure that he would swallow all of his own cum. The hellhound's other paw casually moved on the ferret's sack, fondling, stroking, and kneading it. A wonderful warmth engulfed his orbs, the tissue sloshing and creaking as it inflated just like all the other parts. But he was too busy sucking his own dick and drinking his load to notice the change.

Prolonged by the steady stream of corruption, Lapis experienced the longest, wettest orgasm he ever had. Just about two minutes of senseless pumping, moaning, and swallowing passed before the dizzying high abated and the lust slowly released its vice grip around his clouded brain. Rakkar's toothy, horned face was the first thing he saw, grinning with horny triumph. The canine withdrew his paws as he finished his blessing, and lacking support Lapis's dick plopped out of his muzzle with a wet slurp and flopped down on his shoulder, still drooling and dribbling plenty of leftover semen. "There we go, we're all done. Now you're potent enough to knock up half of the city in a single night, although you probably won't fit most anymore," the hellhound rejoiced and conjured up a magic mirror. "Come, get up and have a look at yourself, will you?"

"As if I could still get up with that huge trunk between my legs," Lapis groaned, sluggishly trying to get on his knees. To his great surprise, his muscles obeyed and they were even strong enough to roll him over. Before he knew it, he was back on his feet. Given, his stance was shaky and he had to actively counterbalance the weight of his enhanced assets with his tail, but he could stand upright without any further support. Whatever powers the demon had bestowed on him, he had also made him absurdly strong. His gaze fell on his own mirror image and his jaw dropped as he saw the changes the hellhound had made in all their glory. While his upper body had remained the same, his lower half looked like a caricature created by a horny artist. His hips had grown about twice as big as his chest, which brought the word "child-bearing" to mind. His dick had become truly massive and now looked more like a blunt weapon than a breeding organ, and his balls had grown into a pair of bloated, elongated ovals that hung down to his knees.

"It's perfect, isn't it? Big, plump, and juicy, just how I like it. I can't wait to feel that thing in my ass, buried deep, filling and stretching me. Maybe I'll even let you knock me up one day, so we both carry our offspring," Rakkar mused, licking his lips. "Or I could skip a litter and watch you impregnate yourself, sitting on your dick and bloating yourself with your own cum. Swelling your womb with perfect images of yourself, demonic ferret nymphs who inherit the powers of their parent and sole creator. The possibilities are endless, my dear little toy. But that's a thought for later. Now, I have to break you in and get the first litter underway. Get down and show me that delicious rump of yours."

The demon didn't have to ask twice. Only moments after his orgasm, Lapis's lust returned with a vengeance. His intense craving for Rakkar's seed and the thrilling fantasy of swelling with his demonic puppies drove him crazy. He dropped down on all fours, his gargantuan dick draped over the warm basalt, hard and leaking, his bloated nuts resting on the floor, and his tail raised high, exposing his shimmering white butt and twitching pink pucker. He didn't yet know how the hellhound's prick would fit into there, but he was sure that the canine would find a way.

"Oh, so needy and obedient. I like it," Rakkar snickered as he stepped behind Lapis's rear. "Also, I would very much appreciate it if you called me your Master. You successfully retained your free will, but as my toy, bitch, and apprentice, that address would make sense, wouldn't it? Tell me, toy, do you want me, your Master, to fill me with some demon puppies?"

"Please, yes, do it, Master! Breed me, fill me, and knock me up!" Lapis grunted between horny huffs. He didn't just want his seed and his offspring, he needed them as badly as he needed to eat and drink. He wasn't sure if his corruption was doing talking just now or the sane parts of his mind, but either way, it felt right to call Rakkar his master.

"Well, since you asked so nicely for it." The hellhound brushed his tongue across Lapis's entire backside, licking from his drooping balls over his taint all the way to the shaft of his tail. The wet muscle covered his intimates with a coat of hot saliva and gave him a first taste of what to expect from his new mate. He clenched up, groaning and squeaking as the canine played with his butt, licking and smacking him with broad strokes and slurps. Gusts of hot breath brushed over his spit-covered fur and the demon's massive canines teased his skin. That act alone sufficed to stoke the fire inside Lapis, his dick growing hard as he drifted off into lusty fantasies.

Soon, the demon focused his eager but aimless strokes, rubbing the center of his tongue against his toy's quaking tailhole, still puckered up and shy. Step by step, he softened Lapis's resistance with undulating motions, smacking and pressing against the tight hole to drown it with affection.

The ferret's moans heated up like the whistling of a boiling kettle. Pleasure washed through his mind and claimed him. His muscles relaxed, his arms and legs became weak and his tail dropped onto his back, and finally, his defiant pucker dilated and yielded to Rakkar's horny assault, allowing him to push it open even further with every new lick. An opportunity the hellhound didn't let go to waste. The pressure on Lapis's butt increased until the tip of his master's tongue pushed past his ring and plopped inside him. From here there was only one direction to go: deeper.

The demon rolled his tongue and speared it far into the depths of his toy's butt, invading him with the entire strength his prehensile muscle could muster. Writhing, squirming, coiling, and curling, it thrashed around like a fish out of water, stretching and widening the tight passage and preparing it for the inevitable filling.

The ferret lost himself in the sensation, needy mewls bursting out of him whenever the canine's tongue battered against his prostate. If he had tried to escape the ravaging, he wouldn't have gotten far. His limbs were rendered useless by the stimulation and he slumped to the ground, resting heavily on his throbbing cock. His vision had twisted into a blurry mess and his ears were filled with the shlicking and slurping of wet flesh as it stretched and shifted. His whole body was shaking and twitching in response to the hellhound's thrusting tongue. The demonic organ went so deep, tickling his insides and his prostate, instilling him with an otherworldly, heavenly bliss.

Much to Lapis's surprise, and his delight, Rakkar didn't bother to hump him after a brief preparation, but took his sweet time and devoured his ass like a starving creature with wild slurps and brazen grunts. His arousal surged to celestial heights and beyond, his monstrous endowment pulsing against his chest. Before he knew it, he exploded in another unprecedented climax, harder than any he had experienced ever before. He yowled with mindless joy, as there were no more thoughts in his lust-addled brain. His enhanced breeding orbs stirred up a heavy load, flushed it through his enlarged shaft, and spewed it forth like from a leak on a broken pipeline. A torrent of hot semen battered against his chin, soaked his upper chest and shoulders, and formed a finger-deep puddle on the tiled floor, only slowly draining and dripping through the cracks. The ejaculation was so potent, it felt like a part of his spirit was leaving his body through his dick.

The demon didn't stop thrusting into Lapis's convulsing orifice, giving him no opportunity to unwind and just enjoy the moment. There was only ever more, more of everything, pleasure, lust, stimulation, and more jizz than Lapis had ever come in his entire life combined. Only when the contractions weakened and the spurts faded, heralding the end of his insane climax, his master pulled out with a wet smack. Rakkar sighed with satisfaction and just sat behind the little male until he had come down from his stupefying high.

"How did it feel, toy?"

"This was amazing, Master! I think I never felt this good in my life."

"I know." Rakkar chuckled and gave his rump a firm smack, throwing Lapis off-balance and on his side.

The ferret squeaked in feeble protest as he was rolled on his back. "What was that for?"

"Well, I want to look into your eyes as I break you in and breed you. Once you have had my dick inside you, once you have had a taste of my semen, you will never want anything else inside you. And I'm not exaggerating. You will become addicted to me. You may leave me one day and journey to the other end of the world, but you will always crave satisfaction only I can give. I want to watch as that addiction infects you, watch how you surrender to me entirely," the demon growled menacingly while he dropped his fully engorged penis onto the Lapis's, slowly sliding it up and down. Rakkar's black tool was actually smaller than his, but not by much, and it was just as thick. Yet, he didn't feel intimidated by the humongous size, only aroused by the sight and desperate to take it. He whimpered as the demon continued to frot him, squirting and drooling pre over his body and face. The musky taste and scent only stirred his craving further.

"Please, Master, I cannot wait any longer! Fuck me already!"

"Oh, is my toy so eager to begin? So desperate to submit? I never expected this to work so well. Today really is my lucky day, isn't it?" Rakkar finally pulled his cock away from Lapis's chest and lazily dragged it down to his ass, leaving a glistening trail of pre on his fur. Bit by bit, the hellhound prepared him, lifting his legs and bending them over his head so his butt was free and vulnerable. His hole was as ready for the tapered tip and massive shaft as could be, but despite the demon's devoted preparations, it still felt much too tight for his rod, but that didn't stop the massive quadruped from trying. And succeeding?!

The leaky tip went in no problem, the first few inches followed quickly, and even as the girth was big enough to stretch Lapis's ring, the hellhound didn't slow and pushed on with unstoppable force, adding inch after inch. The ferret responded with a desperate groan, which became louder and higher as his anus got distended beyond its natural limits. The tissue creaked and groaned as it struggled to accommodate the bloated rod, his prostate cried under the pressure and his sphincter was so taut, it felt as if it was about to snap, but everything held together in gross defiance of the laws of nature. His abdomen bulged with the demon's dick, the outline creeping up his belly. Rakkar halted briefly when his pecker teased the pristine, still shut entrance to Lapis's brand-new womb. Obviously, his cervix didn't stand a chance and gave way immediately as the hellhound pushed on, the merciless defilement showering his brain with a flurry of stimulation. It was so much, his brain actually skipped a few seconds of existence, only snapping back as Rakkar had stretched the narrow orifice as far as his anus. Just formed, it had already been broken in.

The last few inches were the hardest. Rakkar huffed and snorted while he forced the rest of his prick into the tight hole, distending the ferret's guts a little more still. "Fits like a glove. And now I'm going to fuck you, so get ready," he snarled and began to rock his hips. However, the ridiculously tight fit wrapped Lapis's ass so tightly around his dick that he didn't really thrust back and forth into him, but with him, shoving the ferret over the floor. With an amused chuckle, he quickly lowered a paw on his partner's head and pinned him down, granting himself the leverage he needed to pound his toy.

All of a sudden, the black paw pad of the hellhound's front paw came down on Lapis's face and robbed him of his vision. He yipped in surprise, a sound that rapidly turned hot and bawdy as he began to use his ass with reckless force. The massive shaft plunged in and out of his tight insides, even though they didn't really want to let it go, clenching down vigorously. However, the demon was much stronger than the tiny ferret and easily overpowered his clingy pucker, just pumping into him with a lusty cackle. Loud slurps and obscene smacks filled the hellish basalt chamber, echoing from the rocks and mixing with Lapis's mindless cries of pleasure. That gargantuan cock was stirring his womb, wrecking his ass, and stretching him further than should be possible, treating him like a snug, little fuck toy. Everything inside him was screaming and reeling from the ridiculous insertion, flooding and drowning his mind with twisted pleasure. New thoughts simply stopped forming, and the last old ones faded out into horny chaos that seized more and more of his consciousness until only the diffuse sensation of pure lust remained.

The first minutes were only the foretaste of the demon's abilities, though. Rakkar was still breaking his toy in, loosening the ass until he could fuck him without having to worry a thing anymore. Only then did he unleash the whole power of his unholy body. He stopped for a moment to get into a better position, his eyes glowing with manic lust. Lapis whined in delirious desperation, already brought close from the initial pounding, while Rakkar widened his stance, his hind paws stomping into the ground. He put a front paw onto Lapis's shoulder and set down the other one next to his neck, locking his body between his legs. "Enjoy, Lapis," he grunted with a husky laugh before his hips began to move again.

The hellhound's dick entered Lapis with the force and speed of a battering ram, shaking his whole body, before sliding back just as fast. Rakkar hammered him at a breakneck pace, ramming half of his shaft into the battered hole twice a second. The force behind each thrust was fierce enough to dominate the smaller male in every way imaginable. The rhythm was steady enough that Lapis's heartbeat synchronized with it, pounding in his chest at the same rate as the dick in his rear. It also controlled his breath, pushing the air out of his lungs each time the taper moved in, eliciting a high-pitched, uncontrolled squeak, and sucking it back in as it withdrew. The ferret had lost control over limbs and tail long ago, and his arousal was mounting without an end in sight. There were no thoughts, just pleasure.

Within the first minute, Lapis burst into a powerful orgasm and emptied another gigantic load over his face and the floor. It started with a big blast right into his muzzle and kept going for another minute as the hellhound's pistoning squished and drummed his prostate, maintaining his high and squeezing every drop of cum out of him. His oversized cock bounced and flailed around like a flag pole in a storm, his personal storm called Rakkar. Even after his first climax had faded, the mess didn't stop. His erection softened during his post-climactic low, just enough to release his urethral sphincter. The rampant external pressure on his bladder rapidly forced all of its contents up and out of his dick, the urine flushing the bits of leftover semen out of his urethra. The first second of the piss stream was still white and milky, but then it turned dark yellow. It sprayed everywhere, coating the demon's underside and drenching Lapis's entire upper body.

"Fuck, are you wetting yourself? How indecent. You're such a filthy toy," the hellhound snickered between heated huffs. "So tight and so noisy. We're going to have so much fun!"

Lapis didn't reply. He struggled to even understanding his master's words, his mind unable to process it while it overflowed with lust. Still, it conjured a happy grin on his messy face because he knew that it had been a compliment.

His orgasms came and faded like the waves on the shore. Each of them just as strong and potent as the previous ones, never showing any signs of exhaustion, just as unnatural as the assets the demon had given him. Eventually, it was time for Rakkar to bring things to an end. The canine's massive rod grew even larger, the base swelling and bloating into a fat bulb. His thrusts slowed as he forced the inflating part in and out of Lapis with gross slurps, roaring as it plopped in one final time, now too big to go anywhere anymore. Locked inside the ferret, the knot grew bigger and bigger, pressing down right on his prostate and eliciting just one more orgasm before the bigger male would flood his womb with potent seed.

The demon's bloated nuts rested on Lapis's butt as he came, and he could feel them tense and clench as they churned up their load. Just the first spurt of hot, gooey baby batter was big enough to fill his entire womb, save for the space the throbbing tip was taking up. This gush alone was enough to knock him up with demonic puppies. However, the knot made it virtually impossible to pull his cock out, and it was still lodged inside his womb. There was no way out on either side and he would take Rakkar's whole load whether he wanted or not. Lapis had a sneaking suspicion that this was just a tiny foretaste of a much bigger flood.

The second spurt swelled his midriff, and it was promptly followed by many more, about one per second. His skin and insides creaked and groaned under the new kind of stress, stretching and bloating to make way for the demon's cum. A dozen spurts later, Lapis looked like he were already heavily pregnant, his belly button protruding and the fur on his belly thinning, his taut rosy skin shining through. And this was still only the beginning. Soon, his midriff was large enough to push against the hellhound's underside, and a little later big enough to push against this legs. When the torrent finally stopped, Lapis was left with a gigantic sloshing and gurgling cum belly. Now, he had another unnatural part adorning his previously so slender and inconspicuous body.

The demonic beast above and around Lapis had come to rest, panting heavily and enraptured in his own blissful heaven. Finally, the lusty mist clouding his mind cleared just in time to witness his final change. After ogling his overstuffed belly in speechless awe, the ferret felt a strong, sweltering heat inside him that had nothing to do with his liquid filling or the massive cock in his ass. It quickly engulfed him whole, causing countless tiny zaps and tingles. His vision faded, alternating between flashes of white, abyssal blackness, and a heavy blur, before it returned again, showing him that he had changed once again. Half of his fur had turned black, and the fur on his bloated belly was gone entirely, leaving only a glistening, ebony skin. "What... what happened? Did you do this?" Lapis blurted out.

The hellhound grunted and smacked his lips, examining the changed ferret with an amused grin. "No, that wasn't me. At least not on purpose. It was the seed inside you that has finalized your corruption. You're now as close a demon as possible for a mortal, and you've taken the transformation surprisingly well. Many go insane at some point during the process, but you persisted. I'm impressed, Lapis. However, you can never return," he whispered. "New powers and new cravings. Don't worry, I'll teach you what you need to know."

"Thank you, Master," Lapis wheezed.

"Also, you have horns now."

"Wait, what?" Lapis smacked a paw on his forehead, rubbing it and realizing that the demon was right. There were two nubs of hard keratin, not much larger than the tip of his thumb, but still palpable. He couldn't wait to see himself in a mirror. All these changes must make him look pretty demonic. The hellhound's muzzle interrupted him, Rakkar had lowered his head and playfully licked the ferret's face. "Will they grow bigger?"

"Only if you want them to. You could let them become as big as my horns, or make them disappear again."

"I can change them? How?"

"That's something you still have to learn. The same way I grew your hips and dick, gave you a womb, you will eventually be able to shape your appearance."

"That's fantastic. Apropos growing," the ferret groaned, sluggishly lifted his paws on his inflated belly, stroking the taut, sensitive skin. "How many of your offspring will grow inside me?"

"That depends. Now, on your first time, you'll maybe have two or three. Eventually, once your body gets used to the pregnancies, maybe five or six."

"Half a dozen? That's a lot! Also, did you have to bloat me this much, Master?"

The demon laughed lustily. "Well, I can't control how much I cum, and you'll get used to it eventually. But for now, I'm satisfied. You're a great fuck! Thank you for helping a lusty hellhound out, toy," he grinned and licked over Lapis's face again, this time stopping over his muzzle and gently sliding his tongue between his lips. A kiss between two mismatched partners, but much less aggressive than his previous advances. The ferret felt one of the demon's paws stroking his new, demonic fur, softly shaking his body and stirring the sloshing load inside his womb, every movement sending another surge of pleasure through his spine.

"Thank you so much for your gift, Master." Lapis was full to the brim, drenched with sweat, exhausted, and yet he felt strangely complete and more powerful than ever before despite being trapped underneath a massive hellhound's body. All this time, he had been worried about the transformation, but it had gone much better than expected. He had gambled high, but he had won. The ferret couldn't wait to learn about his new powers and put them to use. It almost felt like they were destined for each other. He also couldn't wait to get to know the demon better. Against all odds, stories, and fables, Rakkar appeared to be a decent guy. Kinky and horny, but thankfully not despicable or evil. He sighed into their sloppy kiss and closed his eyes, relaxing and unwinding from the feral fuck. This was the start of a new life with a new master, and he was curious what the next days, months, and years would bring.