Topic: Growth-XX: Cerberus Conundrum - by FlatCap90210 (Furry Warning)
Source: https://chyoa.com/chapter/Cerberus-Conundrum.1346012
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Growth-XX: Scenes from the Outbreak
Cerberus Conundrum
Keira didn't get why everyone was so worried these days. Sure, there was a lot going on that was more than just unusual, what with people getting bigger boobs, bigger cocks, sometimes both at once and not always in the usually expected places. But it was just a few people, and they'd had sex or something before changing, or so Keira had heard. And now there were talks of lockdown? Also, it wasn't like Keira was at risk catching whatever was going on. Yes, she liked to party, yes, she liked to drink, but she was also a total romantic that was saving herself for her future husband. It was the one thing in her fundamental Christian upbringing that had made sense to her. The rest got in the way of having fun.
It was after a long night of said fun that Keira made her way through the strip of grass in front of her apartment block, unsteady on her feet after maybe one mimosa too many. She'd shared a taxi with her friends to get home - they loved to party, but they weren't stupid enough to stagger drunkenly through the night - which had brought her within a few meters of the entrance of where she lived, so all she had to do was walk for maybe 5 seconds, 10 with how much she was swaying. What was gonna happen in that amount of time?
As it turned out, nothing, even if getting the key to open the door took another 10 seconds. No, the trouble started once Keira was inside. She wasn't the only one getting home late, even if her downstairs neighbor, a woman she'd only seen in passing before, was far less drunk than her. She had, however, an entirely different problem lifting the hem of her skirt, bobbing side to side as she whirled around to try and keep back Keira when the main entrance door fell closed behind her.
"N-no, stay back! I can't cont--control it, please--ah!"
Keira's eyes were glued to the massive, veiny shaft growing between the woman's legs. It was as big as her forearm and easily twice as thick around, the tip swollen and purple - and the first live erection she'd seen in her life. While masturbating, she'd of course looked at pictures and videos, but this? It was almost mesmerizing... aaand it was doing the thing were it swelled and strained right before.
"Oh nuh-nuh-nooOOOOH!" Weak protests became a rising scream of pleasure, and Keira barely had time to take a half-step back before an impressively thick rope of cum hit her left tit with the strength of a firehose. "Ah-ah-oh goood~!"
Bringing her hands up to shield at least her face, Keira took another half-step back, but the other tenant had turned enough to spray the rest of her load down the hallway and against the door out to the street. Still, Keira felt backsplash hit her from behind, hot, sticky globs seeping through her flimsy dress.
"Oh-oh-oh god, I'm so sorry, it-it just goes off without warning, I... I..." The other tenant was obviously mortified, and drunk as she was, Keira didn't find it in her to get angry. The poor woman had it hard enough, in more than one way... "P-please forgive me!"
With that, the bedicked woman whirled around and scrambled to open the door into her apartment, practically diving in and slamming the door closed behind her, leaving a bewildered Keira behind in the hallway, cum dripping from her tits and back and seeping through her dress and into her skin. Still, she stood there for a minute or two, jaw slack and drunk mind unable to process what had just happened.
Keira had never said a word to the woman except short greetings, and now she'd been covered in cum by the poor woman. Talk about a weird end for an otherwise great night. Deciding that she was way to drunk to deal with this right now, Keira decided to stagger up the stairs and into her apartment for a shower and some water before falling into bed to sleep off the booze. At least, that was the plan...
Even as she made her way upstairs, there was warmth spreading through her body from her breasts and back, right where the cumstains slowly cooled in the fabric of her dress. Which was kinda counterintuitive, even to her drunk mind, but even after more mimosas than had been advisable, she wasn't gonna strip on the stairs or in the hallways. This meant that Keira had to deal with the sticky sensations for a while longer, the pesky, renitent door lock refusing to accept her key holding her up a few more seconds. Then she was back inside her home, stepping to the sink to drink a big glass of water to minimize her hangover. That done, Keira stripped out of her dress, grimacing as the wet spot at the front passed her face, leaving a sticky trail on her lips, nose and brow. Definitely time to shower now.
Showering also helped Keira sober up enough that she was merely very drunk and no longer hammered. What it didn't help with was the strange warmth building within Keira; even after showering, brushing her teeth and putting on her extra large sleep shirt, it was still permeating Keira's body, making her nipples stand at attention. Which was weird, because she wasn't exactly horny, and definitely not cold. But who cared, sleepy time it was. Crawling into bed, Keira pulled the thin cover over herself and smiled, happy about another great evening, even if the end had been weird.
Only sleep wouldn't come. Instead, the heat inside her began to climb faster now, turning undeniably sexual, Keira's loins and nipples throbbing, her entire body feeling tight and achy. Rolling onto her back, Keira felt her breathing deepen, chest straining against the front of the shirt until she adjusted the fabric, but apparently, Keira would have to rub one out before sleep. Wouldn't be the first time she masturbated while drunk before falling asleep.
Throwing off the covers, Keira hiked up her shirt and got to gently teasing her labia, head laid back on the pillow. Just because she wanted to sleep didn't mean she had to rush through things. Pleasant tingles ran through her pussy lips and up her spine, making her sigh softly, nipples tenting her shirt. Middle finger parting her labia, Keira knit her brow at how big and swollen her clit seemed, but it didn't really matter. All Keira had to do was cum, then she'd be able to sleep. Bringing one hand up to her left breast, Keira squeezed the palm-filling mound and rubbed the hard little nub capping it with one finger.
Lust slowly building, Keira bit her lower lip, moaning softly, one finger dipping into her entrance as her clit pushed into her palm... This finally gave Keira pause. Enough to realize through the fog of alcohol and arousal that her breasts weren't palm-filling anymore, bulging out under her hand instead. Looking down at her body, she realized that it looked off. Her shirt seemed smaller, tighter around her frame, legs definitely more toned than she knew them to be. Worry cut through her drunk mind, the thought that something weird was happening literally sobering.
Keira's clit was pushing against her palm harder now, prompting her to move her hand away - and she wished she hadn't. Her clit did look abnormally large, rising proud and uncharacteristically pointy from its hood. Literally rising. Keira could watch as it grew longer and thicker, bulging at the base and the middle before tapering to a thin tip. Gaping at the sight, Keira almost missed that her clit wasn't the only thing that was growing, swelling, getting thicker and meatier.
Keira gripped the sheets tightly, muscles twitching, flexing, bulging as she writhed helplessly, gritting her teeth against the sensations. There was a strange grinding sensation in her hips and shoulders as they widened, thighs packing on well-defined muscle as she watched in fascination with a pinch of horror. This was decidedly not normal, unless someone had put drugs into her mimosas. And what was happening was way too real, sleeping shirt tightening around her growing body, constricting breasts that were by now easily twice the size Keira was used to and slowly approaching the size of her head.
"Wha-what's going ooooohnn~?"
"Something wonderful."
The voice sounded just like Keira's, only the inflection was a little different, more lilting, more seductive. Keira's head whipped around, towards the right where it had come from, but no one was there.
"Down heeere~!"
Craning her neck, Keira stared down at her wide, muscular shoulder - and saw a mouth with full, pouty lips that she usually only saw in the mirror, smiling teasingly.
"What, and I get ignored?"
This time, Keira moved her head slowly, filled with dread and absolute certainty about what she would see - a second, identical mouth on her left shoulder. This one was smirking, its voice more self-assured and sassy. And as Keira watched with trepidation, chest feeling tight, the lips began to bulge out; not growing thicker or bigger, but literally rising upwards, followed by a jaw, a nose, cheeks, all well known to Keira. Head whipping back to her right shoulder, Keira looked into a mirror. Only the mirror winked at her and blew her a kiss.
"Wha... bu... huh?"
"Not quite the welcome I'd have expected, hun." The same face looked back at Keira as she turned her head back left, part of a head that looked exactly like hers, down to the hairstyle. Only her original face was gaping at the new one while the new one was smirking teasingly. "But it's okay, it's not like we're not surprised at what's happening ourselves."
"Me, I'm just happy to be here," the right head said in a bubbly voice before nodding towards the rest of Keira's body, hair tickling her cheek. "Also, don't you wanna do something about that, girl?"
Keira felt like she was getting whiplash from looking to the left and right as her new heads talked and only now realized that she had completely forgotten what was happening to the rest of her: the tightness in her chest came at least partly from how snug the formerly baggy shirt was now on Keira's body. Her breasts no longer merely filled a palm, but would overflow even Keira's enlarged, yet still comparatively dainty hands - because her entire body had bulked up considerably.
Her biceps bulged, straining the short sleeves of her shirt, Keira's lower arms thick with flexing muscle as she gripped the sheets as if they were last pieces of a sinking ship keeping her from drowning. Because the rest of her body was traitorously, torturously aroused, thick nipples poking into fabric struggling to contain her squished breasts, well-defined abs visible were her shirt hat slipped up and further down, right below them...
"Oooh gaaawwwd!"
"I know, isn't it awesome? I mean, look at it! It's sooo big and haaard~!"
"Which is why I don't understand what you're waiting for, hun. Just touch it, give it a few pumps, you'll love it."
Keira's clit definitely didn't deserve to be called that anymore. From the fuzzy sheath that had been the clitoral hood rose a thick, angry red shaft; the thick, pulsing knot at the base was at least the size of Keira's old fist, slimming down to a fat, 7 inch rod that bulged back out to nearly the thickness of the knot before ending in a tapered, pointy tip that was gently drooling sticky fluids as it throbbed, painting lazy, erratic figures in the air. And it was still growing larger as Keira and her new heads watched on.
"Whoaa, that is sooo awesome! Can you imagine how it feels to jerk off with that thing?! C'mon, c'mon, touch it, I wanna know!"
"Yes, hun, just wrap one of these strong hands around it and stroke, stroke, stroke until we cum. It's going to be so easy, just fap-fap-fap-fap."
Keira groaned somewhere between terror and lust. It was like the old trope of having an angel and a devil on her shoulders, only both were horny as hell and were far from divided in what they were trying to do.
"Besides, who knows if it isn't just going to keep growing if you don't touch it? It will be much more enjoyable if you do, that's for sure, hun."
"Who cares what's gonna happen or not happen? I just know we're hooor-neee~!" The hot breath of Keira's right head was tickling her ear, a gentle nibble on her earlobe making Keira moan. "Pleeaase, just jerk us all off, okayyyy~? It'll be fuuun~!"
The bestial shaft rising from Keira's loins was as long as her lower arm by now, and almost as thick around - which, considering her newly acquired muscles, was saying something. It was easily the biggest she'd ever seen, even bigger than that of her downstairs neighbor. A traitorous thought wormed its way into her: what would it feel like to touch it, stroke it, jerk it until she blasted her load all over whatever she would be pointing her massive member at? Just go splurt-splurt-splurt all over the...
"N-nooouuugh~..."
"Hun, you really shouldn't fight it. It's just masturbation, right? Nothing we... you... whatever, have never done before. Granted, not with something like this, but that's only going to make it better."
"Mhm, mhm!" The right head agreed enthusiastically, hair brushing against Keira's ear as it nodded. "God, look at it, it's twitching like crazy. It wants you to touch it. Just a few strokes, to try how it feels, pleeaase?"
Indeed, the massive dog cock straining towards the ceiling pulsed and throbbed with Keira's racing heartbeat, precum flowing from it's urethra and down its length, over the swollen knot at its base and further down, were it mixed with Keira's freely flowing pussy juices to soak into the sheets. Shaking her head, Keira started as she knocked it against the headboard of her bed; with all the teasing and talking and lustful sensations she'd completely failed to notice that not only was she growing wider and more muscular, but also taller.
Already her feet were beginning to hang off the bed, all three heads creeping up against the headboard so Keira and her new heads didn't have to strain to keep looking down at her continuing transformation. Thighs as large around as a small woman's torso shook with pleasurable tremors, wide, muscular hips twitched as they kept widening, shaking a cock that had by now surpassed the circumference and length of her forearm, abs rippled as Keira writhed lustfully, and with every breath, Keira could hear the seams in her shirt creak. The only thing not swelling, at least not as fast, was Keira's waist, giving her an hourglass figure of pure muscle and feminine fat.
"Ooh, look at these puppies!" Because the tits stretching Keira's night shirt had become massive, constricting her breathing ever more as they strained against the fabric. "I get the reservations about the cock, but don't you wanna touch them?"
"At least so we can breathe properly, hun? And then, who knows what will happen?"
Keira was panting, partly with lust, partly because deep breaths would have done who knows what with her desperately erect nipples. But she could feel her resistance crumble; why was she even resisting? Because it was freaky? It wasn't like Keira could stop it in any way, so why not enjoy it? Just pump-pump-pump her cock, squeeze-squeeze-squeeze her tits, and...
"Nnnfh, I... I can--nnnht..." It was as if part of Keira's mind had joined the two new heads. "I won't--won't..."
"Why though? There's not really a reason, right? It won't go away, hun. Just give in. Enjoy it."
"Uhh..." Keira wasn't hanging on to the sheets anymore, powerful hands twitching as if they couldn't wait to wrap around something and squeeze gently. "I... ugh... I..."
"Just listen to her. Lets have fun, let's have fun!"
The first seam in Keira's shirt began to rip as she took a deep, shaky breath, twin lances of pleasure shooting through her as her fat nipples pressed into her shirt. Shoulders resting against the headboard by now, Keira raised her right arm slowly, hesitantly, a low moan rising from her throat. Her body was on fire with pleasure, a lustful inferno burning in her shaft. Maybe, just maybe, she could quench it by touching herself, jerk off that monstrous cock?
"Yes, yes, do it! God, I'm so horny, please jerk us off, please!"
"Ooh, finally, hun. There's a good girl. Just wrap your fingers around that thing and go. To. Town."
Keira couldn't. Her cock was so thick and girthy by now that her fingers wouldn't reach all the way around it, not even at the most narrow part just above the knot. Not that it stopped her from immediately pumping her precum-slicked rod as soon as her hand touched the hot, sensitive flesh.
"Aannhh~, yesss, that's it, that's what we needed!"
"Ohohohh, there's a g-good gi--ah! Keep--keep going!"
"Yo-you were right, this-unh! This is incredible! This thing feels amashiiing~!"
"Told you--""Told you!"
Deep, lustful breaths widened the tear in Keira's shirt, and seeing as it was ruined anyways, Keira used her left hand and her newfound strength to rip the garment off herself completely, freeing her breathing and her massive tits. Bouncing free, they were easily as big as one of her heads, the thick nipples as big as the tip of her thumb - and currently, easily as hard under her palm as Keira squeezed and rubbed her sensitive skin, enjoying how breastflesh bulged out between her strong fingers.
Her body seemed to have stopped growing, heels resting on the floor and shoulders resting halfway up the headboard, but something was still going on as Keira stroked her animalistic cock and mauled her enormous, soft tits to a lustful chorus from three throats. Waves of tingling pleasure ran over her skin as it rippled over strong muscles, making Keira shudder in delight, precum squirting from the tip of her monstrous shaft with every stroke.
"Oooh, something... something's happening, girls! We're not done y-yet!"
"Nh-nfh... what n-now? What's going o-oooh fuck!"
"Don't you worry, hun, just keep stroking that diiiiiiick!"
Keira did, but her right head had been correct, too: Every time the triple-headed amazon thrust her hips, massive glutes flexing under a layer of fat to ram her dog dick into her fist, the pleasant tingles intensified until, to a satisfied triple moan, dark fuzz rippled from Keira's sheath, every stroke, every thrust sending it further out, over Keira's abs and thighs, her shins and breasts, feet and arms and faces.
"Nnnfh, soft and plushy..." The right head moaned, nuzzling the middle head's cheek with a nose that was fuzzy everywhere except the tip. "I liiike it!"
"Uh-hunh..." Keira's middle head groaned in satisfaction, hand still pumping a cock that looked massive even on her enormous body, fingers reaching barely two thirds around at the narrowest part. Every time she hit her bulging knot, a jolt of pleasure raced through her, the fuzzy layer covering her skin growing richer, darker, thicker. "I'm... we're... getting so fluffy... mmmh~..."
The left head didn't say anything, instead growling lustfully and pressing back into the headboard, eyes closed as she luxuriated in the sensations. Pulling at her fat, puckered nipple, Keira felt lengthening nails brush through what could only be called fur by now before she let go of the erect, buzzing pleasure nub to have her enormous tit fall back down, still rising high and proud from her torso.
Letting her left hand run over the lower swell of her giant breast, intending to have it join the other at her cock to finally encircle the entirety of her massive meat, Keira instead yelped in lustful surprise from three throats as her palm, soft pads growing where fur was not, brushed over a sensitive, rising mound capped by a tiny, erect nub.
"No--no wayyy~..."
"More titties?!"
"Most welcome. Ooh~ yes..."
Indeed, in addition to the one Keira had already found, three more breasts were slowly taking shape, six tits in total forming two lines on her front, the four newest ones swelling slowly as Keira fondled each and every one of them, all three heads gasping and moaning happily as her fur grew into a rich, shiny coat, hair growing into a thick, cushiony mane running from the top of her heads to her shoulder blades.
The tongue lolled out of the mouth of Keira's right head as she panted and yipped, eyes rolling up in her head, but something was weird. Keira could not remember her tongue being quite so broad and long, easily reaching past her chin, and her teeth felt sharper, too, molars and canines growing larger and pointier. And since when could she see her nose that well?
"Holy fuuuck!" The middle head stared down at her nose, cross- and wide-eyed as it changed shape and pulled out from her face, taking the upper and lower jaw with it. "Oh heck, oh heck, oh--ooh fuck!"
Not that the developments kept Keira from pumping her gargantuan beast of a cock or teasing and fondling her six tits, the second and third rows progressively smaller than the original orbs. Something plush and fuzzy tickled Keira between her giant ass cheeks, twitching and wagging in the throes of lust, but all three of Keira's heads were much too preoccupied with everything else going on to give much notice to her growing tail. The left head used her elongated, broad tongue to gently lick the middle one's fuzzy, surprisingly pointed ear gently, growling soft encouragements as her mouths grew into fanged muzzles, all slack and drooling and panting with lust.
"Just let it happen, hun, enjoy it." As the left head kept licking the middle one's ear, sending pleasant tingles through Keira's body, she had to go higher and higher as the increasingly triangle-shaped ear and all its counterparts moved upwards and into the wild mane covering all three heads. Luckily, the lengthening muzzle made that rather easy. "Doesn't it feel--mmmh~, doesn't it feel gooood~?"
"Yesh, yesh, yip!" The middle head's eyes rolled up, just like the right one's, lower jaw hanging slack as her tongue lolled out to the side, drooling onto the side of her middle neck.
Keira was operating entirely on instinct now, right hand flying up and down her enormous shaft as she thrust her hips powerfully to meet her own strokes, left hand trying to fondle all six of her boobs at once, flying from the gargantuan upper pair to the merely massive lower orbs and to the still sizable lower breasts, squeezing and rubbing and flicking nipples, never neglecting any of the sensitive mounds for long. Her tail, still lengthening and wagging excitedly in the face of overwhelming pleasure, alternatingly swished over the soaked sheets or got pinned against the mattress when Keira's hips slammed down.
"Yeesh, hun, just like tha', ke-keep going, we're shooo closhe~..." Only Keira's left head was still able to form sentences, and even she was slurring her words between lustful moans and gasps, hot breath tickling the middle head's twitching ear. "D'you feel how mush our cock shtrainsh? How it shweeeelsh~ in oh--our grip and--oh gooooood!"
Keira felt all that and more, her six nipples diamond-hard and throbbing as her tits jiggled with every thrust of her hips, breath hitching in her throats in lustful yips and yelps and moans. A tightness was building within her lower belly, pussy twitching wildly as Keira's climax approached inexorably for both sets of genitals, cock swelling so much it almost hurt, Keira's back arching until her massive ass was raised entirely off the bed and...
"AH-AH-AH-AWOOOOOOH!"
A perfectly synchronous, blissful howl ripped from three throats as cum exploded from Keira's monstrous dick with a loud squelch, noisily splattering against the ceiling and raining back down on the cerberus as her hips twitched again and again, each rope she fired into the ceiling just as thick, just as powerful as the one before, sending powerful pulses of pure pleasure through Keira that made her minds go blank.
Even the fifth and sixth shot reached the sticky spot on the ceiling, even if their volume petered out slowly, the seventh arcing through the air to splatter over Keira's tits and the eighth squirted out and fell back onto the cerberus' tightly gripping hand.
Finally spent, Keira collapsed back onto the sticky bed, all three heads panting with exertion and pure satisfaction. She just lay there for a while, huge, powerful body feeling weak and drained, but there was nowhere and no one she'd rather be. It was no wonder, then, that the eyes of first the middle head, then the right and then the left fell closed, and Keira drifted off into an exhausted, but deeply restful sleep.
"Morning, sleepyhead!"
"Oh hun, you've been awake for all of two minutes, just like the rest of us."
"What can I say? I'm impatient."
"Girls, shush. No arguing on a Sunday, alright?"
Neither of Keira's heads knew exactly how, but they had taken to their new outlook on life rather quickly. Overnight, so to speak. Of course, it was definitely better than agonizing or arguing, which might have been a large part of the reason. Keira had always preferred to make the best out of the hand she'd been dealt. Or they'd been dealt, now that there were three of her?
Rolling over so she could sit at the edge of the bed, Keira winced as dried cum pulled at her fur - and when she was finally sitting, the cerberus noticed once again how much taller she had become, the bed feeling so low now. Middle head looking down at Keira's body, past massive, fur-covered tits, slightly smaller boobs and finally simply large breasts, she was surprised to find her cock gone.
"Fuck, where is it?! Oh no, it's... it's...!"
"It's in its sheath, hun!" The left head rolled her eyes, shaking her head and making her mane rustle gently. "Don't worry, that's how it works."
"Oh. Duh. Can I blame lack of sleep?"
"Nope! We all got the same amount, after all," replied the right head, chipper and bubbly as ever. "Now, are we gonna just keep sitting here?"
*Take a shower. Because... reasons. Obvious reasons.