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The last thing Mahiri remembered was taking a sip of her wine. She wasn't in a restaurant, a bar, or any other public place where some stranger might have slipped her something. It had been a pleasant evening in, all to herself, only for it to all go black. In hindsight, it might not have been the drink. She did recall some sort of hissing noise just before she settled down, along with an unusually enticing scent wafting through her home.

Regardless of the method used to subdue her, she was far from home by then. The laboratory was darkly lit for a place of science. Even she had to squint to make out the finer details of the equipment and electronics lined up all around her. They made an assortment of whirring, bubbling, or oddly organic sounding groaning noises in their idle workings. She could hardly identify half of it. A line of beakers filled with strangely glowy fluids drew her eye next while she regained consciousness. Something told her just being in the same room as that mystery substance was dangerous.

It took an unusually long time for her to regain her senses. The surroundings were the first thing she noticed. Her situation was the second. Whoever had procured her from her home had done away with all of her clothes. They were nowhere in sight. Not only that, but she couldn't budge from her spot, stretched out on a thankfully comfortable examination table. Her wrists were bound above her, and her ankles were tied to the table in a way that kept her legs spread at all times. Only looking down over her captive body did she realize just how turned on she was by the whole thing, apparently.

She felt it in the same moment she saw it. Her cock wasn't just hard, it was desperately, frightfully stiff to the extent she immediately slipped into a pleasured, strained yowl. It was locked in a constant state of throbbing, dripping, even spitting a thin stream of precum that arced up and down to splash onto her belly. Her balls were taut, flexing up against her body as if she was constantly on the cusp of orgasm. She felt as if one single stroke would have been enough to make her cum, but she couldn't get her hands free to deal with it.

That urgent need and snarl-worthy tension occupied her mind foremost, to the extent she almost forgot about what a precarious situation she was in. The danger of it grew more apparent when her captor revealed herself - or revealed her costume, at the least. Mahiri didn't think that looked like typical lab gear. What sort of scientist dressed up in full plague doctor garb for her experiments? The beaked mask did little to reveal her identity, but the curve-hugging leather cloak at least hinted at who was hiding beneath all those garments. The green glow of her eyes through the glass regarded the captive, horny feline in silence for a time. Only when Mahiri gave her a long look back did she speak.

"Ah, hello there. You have taken to the serum very well. Numbers truly off the charts." Her voice was sharp and unusually accented - definitely not one Mahiri recognized. Its leatherclad owner slowly approached, arms outstretched, an eccentric sway of hips and hands with her every step as if she was conducting an orchestra. "How might you describe your arousal? Intensely enjoyable, excruciating, or both?"

Mahiri's response was as bewildered as it was alarmed. She gave a hard tug against the restraints that kept her nakedly tied to the table, but they weren't budging. There wasn't even the slightest wiggle room. As much as she wanted to try to warn the strange doctor away, she was too busy rumbling and groaning with near unbearable lust. Her answer would have been somewhere between the two suggestions.

"Ah, ah." The plague doctor waved a finger at her as if she was misbehaving. "There is no need to panic. All the needles have already been administered while you were asleep."

That was the opposite of comforting, and something told Mahiri it was meant to sound that way. She gave another jolt against her bindings for good measure before she decided to stop snarling and actually use her words.

"What's going on? What am I doing here? Who the hell are you?"

With each question, she raised her voice a little more, adding a growling undertone as if a threat might hold some weight while she was strapped to a table and throbbing with the urge to cum. The plague doc did not seem shaken by such a threat. It was hard to tell with that mask completely concealing her features.

"You are here for science, of course. That should be obvious by now." She heartily chuckled. "As for I, you speak to the venerable inventor and alchemist, Victoria Black. Doctor shall suffice if you please. No matter what the simpletons at the university may say."

Mahiri found herself considering that last bit. It certainly seemed like something that might be based in reality. A madwoman like Victoria no doubt would have been expelled from academia and rightly so. The thought she might be in the hands of such a reject brought a certain indignance out of Mahiri.

"You can't just hold me here. You can't just kidnap people for your sick experiments!"

"Oh, but I have. You are such a good little lab cat. I knew I chose well. Now!" She clapped her gloved hands together. "We have already made good progress today, but there is still much to accomplish. First, let us see just how well you have taken to the plague. Even at a minuscule dose, the effects are most impressive."

Victoria stepped to one side of the table so she could run a single leather finger up and down that impossibly stiff shaft. Mahiri was so hard she felt as if she'd gained a full inch in length. Just one touch was enough to leave her lip quivering just as much as her dick, her eyes shut tight with the effort simply to endure that much pleasure.

"Don't ..." she huffed.

"Don't? Would you prefer that I leave you to your own devices, without the slightest hint of relief? Don't be silly, cat. You are in need of a good milking."

The thick, textured leather felt good rubbing up and down her dick when Victoria wrapped it up in a full grip, but those gloves were hardly fit for the precise application of pleasure the leopard craved. A few strokes and she quickly decided against trying to make the leopard cum like that. Any possible hint of who she was beneath the mask faded when she removed that long, elbow-length glove to reveal another beneath. This one was made of latex. It squeaked pleasantly while Victoria glossed up and down that shiny shaft, lubing it up with the pre that absolutely poured from Mahiri's erect spire.

It didn't take long for the leopardess to start mewling in pleasure. Even the gentle, sterile handjob felt like the best sex she'd had in ages given how hard she was. The doctor's eyes were nothing but a featureless green glow behind the mask. It was impossible to tell where exactly she was looking, but it felt like she was staring right at Mahiri while the cat made all sorts of snarly faces of ecstasy back at her. There wasn't much room to squirm when she was tied down so tightly, but the leopard could hump and bounce her hips, fucking that firm grip, listening to the strokes getting wetter and wetter while her growls fell to groans and then to mere whimpers. She couldn't so much as mewl by the time she was solidly pounding up into the gloved fingers of the plague doctor.

A sudden feline shriek came with Mahiri going over the edge at last. She lost track of her surroundings in favour of pure sensation. With her ears laid back and her lips curled into what was supposed to be a snarl, she instead screamed her way over the edge as the pleasure lurking inside her was finally unleashed all thanks to that naturally lubricated handjob from the wicked doctor. With jaws stretched wide and eyes scrunched up, she arched her back into a driving, soaring orgasm that left her shooting her cum straight up into the air. It rained down over her as Victoria narrowly stepped out of the way in time.

Splattering herself from soft tum to fat tits and open mouth, Mahiri soaked in her own spunk while her nuts clenched all throughout and extended cumshot. It was more than the usual moments in heaven, but instead an ongoing, pumping, shooting, soaking release as if she'd been building up that pressure through days of edging. She was utterly drenched in her own scent by the time her nuts stopped clenching and her cock stopped twitching and bulging with fat shots of cum. Victoria eventually stepped near once again.

"You cats and your noises. Does that feel slightly better, Mahiri?" Victoria flicked a finger against Mahiri's tingling shaft. It flexed to attention like an obedient soldier, not softened in the slightest. "Do not worry. With the help of some particularly effective devices, I will ensure you are completely dry by the time we are done our work."

It sounded as much a promise as a threat. Mahiri flinched when she saw something swivel over on a great big arm. Victoria brought an intimidating mechanical device down to Mahiri's level, adjusting several switches on the side. It beeped to life then began to whirr - and oddly enough, almost to breathe, pulsing in and out with a disturbingly organic tendency. A better look at it revealed a squishy centre amid the cold steel, one that didn't look like any particular orifice, but certainly would serve as one. Victoria took her time calibrating that machine, to the point Mahiri almost relaxed for a moment. She regretted that when the doctor so suddenly shoved it down over her entire dick, instantly engulfing her in a warm, wet, yet very much artificial hole that hugged up tight around every detail, every bulging vein. It confirmed perfectly to her, enveloping her from tip to balls - a kneading squeeze even managed to slurp those inside to the slick confines of the rumbling milker, for extra stimulation.

"A joint effort, this," Victoria explained. "I cannot take more than half the credit. Most potent even on its lowest setting, of course. Yet a horny cat like you, you most certainly desire a little extra power."

Such an understatement did little to sufficiently warn Mahiri about what was to come. A quick flick of a switch and Victoria stepped back once more to observe. The device gave an ominous rattle, chugging as if breaking down, and then it began to suck. Mahiri jolted away from it once it latched on and started squeezing, sloppily squelching its way through an absolutely devastating milking session. The noises it made were truly excessive, loudly slurping as it sucked that soaking cat cock. Everything seemed to rub her perfectly. It massaged her balls just the way she liked, it squeezed all the sensitive spots on her dick, working her from frozen in shock to shaking, thrashing against her restraints, building up to a rowling, moaning cry that trembled from her lips.

That came with her shooting another thick load of cat cum straight into the hungry grip of the false gullet while the toy sucked her dry. It swallowed her load and whisked it away somewhere with a gurgling sound like a drain being let out. Mahiri let out everything she could give. She had no choice. Cumming for unnaturally long again, she eventually rumbled her way to a stop, giving only thinner, watery spurts like precum once more. That didn't mean the device stopped sucking.

What started as a slight tingle of overstimulation spread through her whole lower body until she was curling her toes in displeasure. The toy kept sucking at a cock that simply had nothing left to give it, at least for the moment. No matter how much Mahiri thrashed, locked into the pleasure-pain of getting forced to a peak again mere seconds after a mind-shattering orgasm. A cat like her was all about stamina, but she was truly being tested, truly being drained until she was a huffing, drooling, screaming mess, shouting her desperate plea when she simply couldn't take any more.

"Turn it off! Turn it off!"

She writhed and fought against the constant sucking, getting her overstimulated dick drained utterly dry. Her orgasm just kept going. Or perhaps it faded into a second one. It had happened before, but not nearly so intensely. Her moans became snarls, screeching and thundering alike while her fangs flashed in the green light of the dark lab. The struggling, growling feline couldn't fight her way out of getting milked again, cumming right down into some unseen tube that sucked her spunk down to a reservoir somewhere for future experiments.

Only when she was a twitching, blank-eyed wreck did Victoria finally show a shred of mercy. The doctor flicked that switch off and let the device rumble to a stop. Mahiri was left drooling and whimpering, her eyes shut tight, her lips pursed, her body tense all over. Her cock still wasn't soft. It stood tall, tender to the slightest touch, to even the shift of air along its bare, drenched length while it dripped there. The glossy surface shone all the brighter for how drenched it was. It schlicked to the touch when Victoria ran a finger along it once more. The doctor's hmm sounded satisfied.

"Exquisite. Milked to the point of pain, and yet still hard for more! I know you are far from done, Mahiri. You are a leopard, after all. Not the biggest of cats, but a big cat nonetheless, with all the potency to match. We shall make the most of that."

"No more ..." Mahiri whimpered, but even as she did, she found herself wondering if she really meant it.

"There is so much more, and we must move quickly if we are to fit it all into a single session. Many others await their turn after all," Victoria told her. "Yet I understand the patient has certain limits. How's about this: I shall treat you to something special as a break of sorts. The truth is I will be treating myself just as much."

Reaching up to grasp her mask, she threw back her hood with a toss of her head and began to loosen the straps that held that beaky face in place. Before she could fully remove it, she raised a finger to offer an explanation of what was to come.

"Now, of course, the airborne variant of my plague shall only increase your arousal when you come in contact with it. I suspect this will effectively overcome any exhaustion you may currently be experiencing."

With that, she fully unmasked at last, revealing an unfamiliar face that answered none of Mahiri's questions. The white rat's eyes glowed all the more without the mask to conceal them. That unnatural light left a trail whenever she glanced about, setting her gear carefully aside as she loomed tall above the captive cat. A lick of her lips made Mahiri's eyes follow that pink tongue, and then there came the steamy huff. Victoria's breath was more than sweet. It was warming to the touch, enticing in a way Mahiri couldn't fully describe. The closer the rat got to Mahiri's face, the less resistant the leopard became, content to simply bask and huff the mysterious airborne something wafting from the rat's lips. It certainly didn't feel like any sort of ailment.

"There we are. My sweet little plague cat. Such a fine carrier you make," Victoria told her, laying a wet lick onto her cheek. "I can already taste the changes in you. Shall I sample further?"

Mahiri was sufficiently subdued by the rat's presence and touch alike that she allowed a kiss on the lips without trying to bite back. Her cock was sore, yet she craved all the more stimulation. That meant she welcomed the feeling of the rat's wet tongue dragging down her chest, cresting over the swell of her bust, dipping down to her belly. Victoria sampled her just as she said, not stopping until she reached that endlessly engorged cock. A quick lick from the tip down to the base helped to clean some of the clinging juices from its surface, but of course it was still utterly soaked. Victoria kissed Mahiri's balls with something almost like intimacy before she slipped back up and pressed her lips to the leopard's tip. A quick suck and slide down easily engulfed her entire length like it wasn't the gullet-bulging slab it was.

With two hands in a different glove each planted on Mahiri's thighs, the rat doc began to suck her restrained patient off with focused determination. A bob of her head and a slight tickle of her front teeth as she dove up and down that glossy length kept the rhythm going. Mahiri couldn't follow along. She was too busy bucking, shaking, quivering, making every possible movement she could while tied down to the examination table. Victoria never waved, no matter how much her subject squirmed. Nor did she slow down when the leopard started pulsing and dripping right onto her tongue, or straight down her throat. She gulped every last drop she milked out of that overstimulated cock.

For all the pleasure of the moment, there was a part of Mahiri that simply whimpered, that couldn't take it any more. The rest of her moaned graciously to another thick orgasm. She wasn't anywhere near running out. Whatever had been pumped inside her, whatever swirled through her veins, it unlocked a level of virility beyond even the biggest of cats. Curling her fingers into claws and baring her fangs, she humped Victoria's throat until she blew another load straight down it, rumbling with forced pleasure all the while.

Another gush, another fat load just as heavy as the first left Mahiri mrawling and drooling. The misty-eyed kitten certainly looked like she was begging for more. She couldn't help it. The longer she lingered in the rat's unmasked presence, absorbing whatever corrupting essence poured off of her, the more enthralled she grew. It was such that she only grew more excited when she found herself treated to the sight of the plague doctor fully stripping down, exposing every last slightly chubby curve of that plaguebearing body - and what was surely the primary means of spreading her little gift in the form of that stiff, thick cock.

Yet for all its persistent pulsing, Victoria didn't move to shove that inside the cat. Instead, she crawled up atop the captive feline, meeting her in a warm kiss for half a moment while she nestled down atop the leopard's own shaft. A little wiggle of her fine rump helped her find her spot, slowly slipping down onto that drenched spire. The gradual push beneath her pink tail eventually brought a moan from the otherwise stoic doctor. She made even more noise when she eventually bottomed out, settling down with a sleek black rim pressed down against the big cat's nuts.

Bracing herself with her hands atop the leopard's fat tits, Victoria arched her back so she could work on riding the leopard dry. What began as something of a controlled pace quickly grew just a little unhinged. Then a little more. The plague doctor milked her patient hard, shoving Mahiri balls deep inside of that tight, warm rat ass until the cat was giving her best whimpers. She certainly had nothing left to give that resembled an intimidating sound. She was helpless to do anything but fuck the lovely doctor until she was trembling all over with the urgent need to cum inside the rat on her dick.

It felt like she was losing a little piece of herself when she bottomed out and blew her load as hard as her body could possibly manage. That feeling dancing through her veins, that strange tingle of excitement that came with her delving deeper and deeper into that custom-tailored plague mixed well with the ecstasy of release. Pumping, shooting, gushing straight inside the plague doctor, she found her every rope of spunk returned in kind. Victoria came all over her subject, from breasts to face to wide open mouth. Mahiri lost herself all the more the more of that tainted seed she swallowed in the midst of her mewling peak.

Her eyes fluttered shut as she finished inside the rat. When she opened them once more, they were a little greener than before, taking on a bit of the plague rat's glow. The room seemed brighter to her. She felt invigorated enough to break free of those restraints, though when she actually tried they proved as strong as ever. That newfound strength simmered through her, sending her into rumbles and the occasional growl that curled her lips back whenever it burst forth. She still needed more. Another hole, another climax. She was a beast bred to fuck with the plague working through her veins. Of course Victoria had more for her.

Rising up from atop her subject, the rat wiggled her way off that cock and left herself dripping and stuffed alike. She didn't seem to mind a bit of mess on the floor. Whoever her janitor was, they probably. didn't get paid enough. Standing there nakedly taking a few notes with her cock still idly erect, she finally nodded to herself as she moved onto the next phase of the great experiment. Whether she was learning anything or acquiring valuable data really wasn't clear. The line between amusement and scientific advancement wasn't always a clear one for Victoria.

"Now, for the last phase. I think this should sufficiently drain your stamina," she announced, moving across the lab to flick several switches.

Mahiri couldn't see her anymore but she heard something whirring. If it was another one of those cum-milking sex toys, she was ready to fuck it stupid. Instead, Victoria approached with something much different. A mirror-like surface glimmered with a constantly shifting colour of light, suspended in the middle of some sort of device. The lust-crazed leopardess wouldn't have been able to guess what it was even at the best of times. Victoria held it out like it was a prize to be one and gave an explanation.

"A bit of a borrowed piece of tech, this. Even I can't claim to fully understand it, but on the other side of that portal you shall find yourself a welcoming warmth awaiting you. She should be waking up right about now."

Without further warning, she shoved it down over Mahiri's cock and made it disappear. The effect was jarring at first. Mahiri jolted as she watched it happen, but she could tell no harm had come to her. The effect was such that she found her mark on the very first plunge, diving straight into the unseen pussy waiting for her on the other side. The sensation of warm, breedable cunt wrapping tightly around her cock was enough to get her snarling her satisfaction. She hardly had words in her mind anymore, merely the pure instinctual drive to mate and breed a warm, wet hole.

It felt like whoever it was on the other side was just as primed and plagued as she was. She delved deep into the slick, pumping depths of an absolutely soaking pussy that needed her. As much as she was still restrained, she managed to move her hips and buck into that unseen someone. It didn't matter who she was fucking. She needed to stuff them full, needed to rut and grind them into a numb, swollen, knocked up slut for her.

Victoria stood by the whole time, cock occasionally twitching. She was still turned on herself, but science came first. She monitored the device and made adjustments when it seemed to be slipping. Mahiri had her eyes closed, focusing purely on the feeling of a warm partner on the other side. Maybe a willing one, maybe not, it was hard to even say. They were wet enough to accept her awkwardly pounding thrusts, and they just got tighter the longer the leopard plunged her plaguelusted cock inside her.

"Now Mahiri. Do keep in mind how receptive the one on the other side must be after all I have injected her with. If you don't stop now, you're almost assuredly going to impregnate someone without even knowing who they might be. Perhaps even someone familiar to you?."

Her voice dripped with a certain sarcasm. They both knew the leopard didn't care. She fucked that mystery partner as hard as she could from her limited position until her balls were taut once more and her cock was rigid. This time, she really was going to give everything she had. Everything she had left, at least. A yowling snarl rose up and gained some thunder, bellowing out of her in a full roar of triumph as she shook in her restraints and shot her seed straight inside the bare, wet sex of the waiting recipient.

She didn't need any fancy machines with their blinking readouts to know she just knocked someone up. Draining her nuts to the very limit, utterly emptying herself into the stranger's pussy was enough to finally relieve all the tension in her body. She slumped back once she finally stopped clenching up tight, sighing her way to a steaming hot finish. With her eyes shut tight and a satisfied smile on her face, she was far too content to even realize the restraints on her wrists and ankles had been released. She was free to go, but certainly in no rush after the pleasures Victoria had granted her in those bizarre experiments.

It was almost a shock to feel her shaft thud down to her belly at last. She thought it'd never soften, but she was finally done, utterly satisfied and more. It was enough to leave her settling into some purrs. The cat was in need of a nap after a performance like that, but her slumbery state attracted the rat's attention once more. Victoria strode close and leaned down over her subject, naked tail slowly swaying as she poked and prodded at the tired cat's middle.

"Finally drained, are we? An impressive result, most certainly. Yet that does mean I shall have to change my plans. Rather than test your virility, I believe you shall help me with a little self-testing."

She left that ambiguous and instead sprawled herself across the leopardess as luxuriantly as a cat herself. Being bigger than Mahiri meant she could totally cover up and lightly pin her down, though the feline was hardly resisting acquiring herself a rodent blanket. Victoria posed herself there, pressing her nose to Mahiri's own, puffing the same warm breath over the cat's face that had so enticed her in the first place. This time, she remained there rather than sliding down, licking over the leopard's face a few times, seeming to be restraining herself. Eventually, she just couldn't seem to help explaining things further while she remained nestled close to her subject, cock pushed deep into Mahiri's soft belly.

"My appetite is of course very much amplified by the digestive accelerants I have dosed myself prior to this experiment. With no more need for you, I shall simply continue my work with your clone. The very same clone you so shamelessly bred with, I might add." She shot a smirk that was largely lost on the plague-crazed leopardess. She didn't get the look of surprise in return she might have wanted, so she simply went on. "While I did intend to eat you a little later on, it seems the time has come to introduce you to my digestive system."

Mahiri was paralyzed before the broadening maw of the plague rat. It might have been a degree of fear that kept her from struggling even once she was unbound from the table. Another part of it might have been fascination. The strange, arousing virus the doctor had given her made her so much more suggestible to anything Victoria wanted to do to her. Even if it meant devouring her whole. The rat wasn't much bigger than the cat, but that did nothing to stifle her determination nor her appetite. Those rat teeth combed smoothly through Mahiri's hair as the doctor enveloped her patient's muzzle and then her entire head in a dripping, slathered maw all at once.

For all her calm bedside manner, the sight of the rat devouring the cat was much less dignified than all that had come before. Victoria feasted upon her subject in a frenzy of hunger, as if suddenly driven mad by the need to have the leopardess inside her. Her body proved unnaturally flexible, fitting the entire feline in her gullet to smoothly descend without any sort of strain. She easily accommodated all those soft curves, dripping with her own cum as they bulged straight down her open gullet, lust fuelled by the constant dosage of mind-weakening plague all the way down.

A pair of spotty legs stuck out between the doctor's black lips as the rat finished her meal with a series of sloppy swallows. Her saliva poured down her chin and chest alike as she stuffed the leopard into her expanding belly. Mahiri made her plenty heavy. She hugged around her gut, squishing Mahiri comfortably into place the more her meal settled down inside her. Perhaps the reality was starting to settle in as Mahiri touched down to the bottom of the slimy, sauna-like chamber that awaited her. The constant gurgle of her own impending digestion had a way of waking her up from that horny stupor.

It was of course far too late to struggle by then. One more good gulp sent those paws away, wriggling down the rat's throat to delve into the juices sloshing and simmering all around her. The seemingly possessive hug of that stomach around her curled up form only kept her all the more helpless while the acids began to tingle and burn at her skin. The plague doctor had swallowed her whole, and the relentless self-experimentation meant that Victoria wasn't going to take hours to digest all that prey. It was a matter of minutes.

The process quickly stirred up to a violent level, aggressively clenching just as much as it roared and roiled with digestive activity. Mahiri found herself nearly crushed by the force of the walls squeezing in on her, kneading her to the extent of almost chewing on her. All the while, juices so potent they could have melted through began to rapidly dissolve her, liquefying her alive inside the rat's belly. The bulge of her shape shook and jumped with her sudden panic as the pain set in, but not even her rising screams did anything to phase the doctor who was digesting her. Victoria was timing the process.

"Do let me know when you die, cat. A telltale twitch or the like is appreciated."

At first, Victoria took to rubbing at her middle to help the process along, but she quickly stopped herself. It wouldn't do to influence the results after all. She stood there nonchalantly, cock stiff, belly loudly churning and groaning, the muffled screams of her prey doing nothing to distract her from taking extensive notes on the whole experience. Mahiri was burning away, melting down into herself, getting her meat eaten right off her bones - and those two weren't immune to the potent acids searing her naked body.

After a minute or two of agony, the leopard's struggles began to diminish inside the rat's churning middle. She didn't perish all at once, but fell from screaming into choking on the caustic air. Her desperate thrashing instead grew to faint squirming, and then to the last spasms of dying muscles before they were incinerated by the fearsome stomach acids working through the soft, filling feline. With a rasping cry from a partly skeletal mouth, Mahiri finally fell to faintly twitching silence and then utter stillness, overtaken by the plague doctor's stomach mere minutes after being swallowed. The rat palmed a few times over the increasingly vague outline of what had once been a distinct bulge of the leopard inside her and nodded her head with a certain scientific satisfaction. The accelerants worked precisely as intended.

"All done, subject? Very well. Let us see how the other you is doing."

Without any further remark on the gruesome death of her subject, Victoria strode her naked self from the room, belly sloshing all the way. It jiggled with her every step, but less so as she went. The sizzling acids melted away what was left of Mahiri until there was little more than a slight paunch to the rat's middle. She grew gradually chubbier as she walked, rapidly absorbing the leopardess she'd so casually devoured and digested alive, but there remained plenty of work to be done on her before she was fully part of the plague doctor.

Before moving on to her other subject, she first stepped into a side room so she could refit herself in mask, cloak, gloves and boots once more. Her front was still very much nude, but she looked much more imposing in the hood and birdlike visage concealing her features. Running her fingers smoothly up and down the surface of the beak with her leather fingers brought a pleased sight from her - and a notable pulse of her cock. Striding forth with lust renewed, she came across Mahiri once more, but certainly not the one currently straining into her intestines.

The leopardess had emerged from the vat utterly drenched in the lust-inspired virus of Victoria's invention. She was fighting against her restraints like a feral beast, snarling her demands with all her fangs on display. The portal device was still affixed between her thighs where that self-creampie dripped down to the base of her tail. Victoria removed it and took a long, gloved stroke over the velvety folds of the kitty's wet pussy.

"Imagine my surprise when you emerged with an alternate configuration to your original. I simply could not pass up such an opportunity," Victoria told her, getting nothing but the increasingly desperate yowls and sawings of need in response. "Yes, yes. All in good time, subject."

Like a leather raven, she descended upon her test subject in near full plague doctor garb, but for the pants. Everything else stayed on for sex, allowing her to safely stroke and caress her beak against the leopard's face even as the nearly feral, lust-crazed cat snapped and bit at her in response. Giving her what she was so violently craving was enough to somewhat quell the struggles and snarls, but the threatening rumbles remained. Sliding smoothly into her creamed sex, sliding through the spunk the other, digesting Mahiri left there, she bottomed out balls-deep in needy leopard sex and got an urgent clench in response.

"Now to see if the fertility experiments prove fruitful. Shall we get you double-bred, dear feline? Leave a rat and cat alike in that womb?"

The response was a predictably growl of need. Victoria chuckled behind her mask and simply proceeded with a firm, deep, methodical fuck. It was a medical grade breeding, steady and precise. The rat doctor made sure to keep a hold of herself, even as the feline beneath her writhed and yowled in rapidly rising ecstasy. It didn't take much to make Mahiri cum. A few thrusts and Victoria was already delighting in the squirting mess she made of the leopardess. There was hardly a sentient thought in those faintly glowing eyes looking up at her. She was little more than a spotty plagueslut, mewling for the plague doctor's tainted seed.

Perhaps she lost herself for just a moment. The rat lashed her thick pink tail as she pounded down into the viciously willing subject beneath her. She fucked that cat hard enough to slap those shiny black nuts against her ass with every stroke, pumping down into that plush, pulsing pussy. Mahiri milked at her cock with such utter hunger, such burning need that Victoria couldn't help a gasp, a moan, perhaps even a faint, ratlike squeak behind the mask. The thump thump thump of her hips never wavered, spurred on by her unnatural stamina, shaking and jiggling every last curve of the leopard's body while she rutted her way to a sudden, sloppy finish.

From the very first shot of potent plague rat spunk inside Mahiri's womb, Victoria felt utterly certain she'd succeeded in her task of breeding the big cat. Of course, the scientific method demanded proof, but she found she could often trust her instincts. Mahiri was warm and rumbly, perfect for cumming inside, leaving Victoria stuffing her to a swollen, pregnant-looking size until the thick seed simply started jetting out to hot splatter the surroundings of the cloning room. She eventually pulled out with a sudden yank back, letting the rest soak and spray all over the naked body of the purring captive. Mahiri looked utterly content to get covered from cunt to tits to face in richly scented rat jizz. She wore it so very well.

Rising, Victoria made sure to rub her cock against the inner thigh of the feline. There was hardly any need for the restraints, she felt, but it was best to be safe with such things. A stroke over the cat's shin, one of the only parts of Mahiri she hadn't covered in cum preceded her words.

"Stew in my virulence a while, and we shall see where you're at after a short break. Such a promising subject you are, leopard. I shall certainly have to see just how many of you I can make."

As she spoke, a rumble almost like hunger emanated from her middle. That was almost certainly impossible, given the size of the meal she'd so recently devoured. Still, it made her continue her pondering, patting her belly as she spoke.

"Perhaps I shall additionally need to see just how many of you I can eat. No sense crowding up the lab with unneeded clones after all."

With the first Mahiri melted down inside the rat, and her DNA captured in the cloning vat, ready to make another at any moment, it seemed the leopardess was never going to escape the dark, hidden bunker that served as Victoria's workplace. She was the plague rat's little lab cat, fit for experiments and amusement alike. Such data the doctor was going to acquire all thanks to her captive, cloneable pet - and such heft and curves she was going to wear after devouring Mahiri again and again. She might have ended up needing to invent some sort of weight loss concoction just to deal with all the excess pounds of former cats she was going to pack on. Such things were always within the grasp of a brilliant madwoman like her.