Going to the Wingerization clinic was not a decision that should be made on impulse, Tiffany had been told. She supposed that made sense, really – it was the same as any kind of cosmetic surgery, just without the surgery. She honestly wasn’t entirely sure about the actual process beyond that it was non-surgical and that the end results tended to be extreme. She was pretty sure that she could take it, of course, or she wouldn’t have come here. But at the same time, she had to admit she hadn’t really put much thought or research into this, beyond confirming that it didn’t involve any kind of recovery period. Sure, she’d been considering it for ages, but that was about the extent of it – considering. The actual decision making process had consisted of “borrowing” her dad’s credit card and driving over.

The trip had been exactly long enough that she was only starting to have second thoughts upon arriving, which was convenient. She found that she had much less fun when she considered the consequences of her actions. In this case, the big one was almost certainly going to be the risk that her father might actually punish her for making an enormous purchase on his credit card this time. He had been vocally but passively annoyed by the Ferrari, though that might also have been because she never even drove the thing. Likewise, he had made a point of frowning profusely over the four hundred designer bikinis, though frankly that had been a perfectly reasonable purchase – it was mid-August and she still hadn’t had to reuse a bikini without having to resort to wearing something other than a bikini. And anyway, she had decided against the four hundred thousand dollar diamond necklace, so he couldn’t tell her she was completely irresponsible with his money. But there was still the chance that getting An Actual Boob Job would be a step too far in his book.

Which raised the question of why she felt she wanted a boob job. And, to be brutally honest, Tiffany didn’t have an answer to that. Which was probably a bad sign. It wasn’t like she didn’t already have pretty big tits – she had inherited her mother’s E-cups. Although, she mused with some amount of bitterness, hers were definitely naturally that big. Candi liked to claim hers were natural, but she also liked to claim they were F-cups and Tiffany knew that was a lie which threw any claims her mother made about her breasts into question and anyway they looked fake and she was pretty sure she’d caught glimpses of scars on their undersides in some of the pornos she had starred in before marrying her father. Maybe that was it. A way to make it absolutely clear to everyone who really had the bigger tits.

But then on the other hand, she’d never particularly cared for the weird, vaguely creepy breast-based power plays her mother liked to pull on her. That didn’t rule it out, of course – Tiffany couldn’t deny the possibility that jealousy of her bitch of a mother was as much of a driving factor of her decision to get Wingerized as her mother’s weird psycho-bitch jealousy of her own fucking daughter was a driving factor in her own antics. But if it was the case, even subconsciously, did she really want to participate? To stoop to the cunt’s level?

Honestly, the answer was probably yes, but there was that lurking spectre of doubt. She just wasn’t certain, and that was a big deal for her. Despite appearances, she valued her rationality, and she wanted to be able to answer to herself why she was doing something before doing it. But that was something she wouldn’t figure out just sitting on her ass in her other Ferrari in a bikini in the parking lot. She had to take action.

Tiffany didn’t bother locking the door – it didn’t have a roof so it would have been a bit of a waste of time and anyway she had like four more back home so who fucking cared. She didn’t even bother taking her purse, just leaving it sitting on the plush leather upholstery. There wasn’t anything in it she couldn’t replace. The only thing she bothered to bring was her wallet, stowed safely in her fluffy cleavage. She strode confidently forward, filled with new resolve. She was going to do this, she told herself. Just a little bit of extra padding up top, maybe a boost to the butt too if they could manage it. The sign, hung slightly above and to the left of the nondescript entrance, attempted to list what services they offered. But it did so using cutesy euphemisms, specifically chosen to make it at first glance appear to be some kind of car customization service. Tiffany idly wondered how many fifty-something men, in the grips of their midlife crisis and not paying close enough attention, had gone in expecting to get a sports car and came out with a bangin’ bikini body. A non-zero number, she imagined. But she was clearly stalling again, so she collected her resolve again and stepped forward again.

And promptly stopped again when she caught sight of the woman leaving the facility.

They had, Tiffany found herself noting, quite a lot in common. They were both rodents – she was a mouse, while Tiffany herself was a squirrel. They had similar hair colours, similar fur colours, even similar fur patterns. And they were both clad only in bikinis – Tiffany’s was a dark green, while the mouse’s was salmon pink. However, what struck Tiffany most, and what had caused her to stop, were the differences. She was very large, for one, in numerous ways. Tall, taller than most mice that Tiffany had met, and certainly taller than Tiffany herself. Her breasts, likewise, were gigantic enough to make the petty arguments with her mother over who was bigger seem like two prepubescent girls arguing over which one was less prepubescent. They had to be at least the size of her head, possibly bigger. Her bikini strained to contain them, sinking deep into soft, pliable flesh.

But what really made Tiffany pause was her cock. Tiffany had seen an awful lot of cocks in her lifetime, of every shape and size imaginable. Or so she had thought until now, but she had never seen a cock of this particular size. She struggled to find words to adequately describe just how big it was. Like a third fucking leg, and that was barely an exaggeration – it had to be the size of one of her arms, fully erect and jutting proudly forward, bobbing along with every step. The pink bottom of her bikini didn’t even attempt to contain it, nor her baseball sized testicles.

“Like what you see, babe?”

“Oh!” Tiffany realized she had been staring. “Sorry.”

“Hey, if I didn’t want people staring, I wouldn’t be here looking like this, you know?"

“Uh, I guess.” Tiffany definitely understood the sentiment – there was a reason why she almost exclusively wore bikinis from May through to late September. But somehow it still felt weird. Probably because she wasn’t staring at the mouse for quite the same reasons she wanted people staring at her. At least for the most part, though she was reluctant to admit to herself. She’d been at least a little bi-curious for a very long time. And, even discounting that, the mouse’s cock was very large. “It’s very... impressive.”

“I know, right? Wouldja believe I used to be, like, a flat chested short little nerd? And now look at me! God, I can’t wait to give this baby a test drive. What do you say, you up for some fun?”

Tiffany, somewhat understandably, reacted to that question by doing her best goldfish impersonation. Her mouth opened and closed in stunned silence minus some confused and surprised stuttering. “I- You- Wh-”

“Okay, fair enough, you probably would like to get your own upgrade done first. Oooh, but what if we fuck before you get your upgrade and then fuck again after so we’ve got a baseline!” Tiffany could feel her pupils shrinking to pinpricks. She wasn’t exactly a stranger to fucking random strangers, of course, and hadn’t suddenly developed any qualms against doing so in the past five minutes. But most random strangers she fucked didn’t have cocks bigger than her entire arm. It twitched, as if aware that she was thinking about it, a thick stream of translucent precum trailing its way down the throbbing pink length. “Oh wait, better idea! I can go in with you and we can fuck while you grow! Gosh, you won’t believe how good it feels just getting bigger, I can only imagine that fucking would be absolutely mindblowing.”

“Uh, actually,” Tiffany interjected, suddenly having real, serious second thoughts about the whole situation – and if she didn’t voice those second thoughts now, she was fairly sure that she wouldn’t get the chance to. “I’m thinking I’ll maybe give it a pass for now.”

“What? Oh, no no no! Don’t change your mind just because I was a bit too forward! I just, uh, you know. Kinda assumed you’d be up for it. That’s why people get Wingerized, isn’t it?”

“No, no, it’s not you. It’s just... I dunno. I guess I just was expecting something a little less... that?”

Still, all her second thoughts aside, Tiffany’s eyes couldn’t help but constantly drift back to the mouse’s cock, no matter how hard she yanked them away to look at literally anything else. Her mind kept wandering back to how big it was, how thick and drooling. She could practically feel it sandwiched between her tits. The scent, the taste, the tightness as it grew bigger and bigger with every thrust into her deep cleavage. At some point in her vague fantasy it had stopped being attached to the mouse and started being attached to her and she wasn’t really sure how she felt about that.

“Tell ya’ what,” the mouse said, interrupting her brief reverie. “What if I spot you for your procedure. It’s all reversible, so if you really decide you don’t want it after trying it out, you’re not gonna be out anything.”

Tiffany stared. And she thought. There was a part of her, those pesky second thoughts that always stepped in to ruin any fun, that said that this whole thing was insane and unreasonable. She’d just wanted bigger tits, and even that was a bit much given how busty she was anyway. But there was another, louder part of her. Second thoughts on her second thoughts. And those third thoughts simply pointed out that she’d never really considered the possibility of having a dick before. And, now that she had, she found the prospect to be almost irresistibly appealing.

As far as she was concerned, ‘Cock Good’ was the much more compelling argument.

“Alright, fine. I’m in. But let’s get this over with quickly, before I change my mind again.”

The mouse smirked in response, and somehow Tiffany’s knees suddenly felt very weak. “Awfully flaky, aren’t we? Come on, let’s go.” She turned and opened the door. “Ladies first~”

“Yeah, sure, whatever,” Tiffany muttered, awkwardly stepping past the mouse.

“Oh! I’m Matilda, by the way, but you can call me Mattie.”

“Tiffany.”

“It’s nice to meet you, Tiffany. Can I call you Tiffy?”

“Mnh,” Tiffany responded. She meant it as a non-committal no, but also she wasn’t fully paying attention to Mattie at the moment. She was distracted by the inside of the clinic. It was big, far bigger than she’d really expected. Like a massive, mostly empty warehouse. She wasn’t sure what she had expected, but it hadn’t been this. Mattie just smiled and headed over to a small kiosk off to the side of the entrance. “It’s kinda big, isn’t it?”

“Plenty of room to grow~ Hi again, Daisy.”

“Oh! Already getting another procedure?” The woman at the kiosk was a skunk, dressed in an almost cartoonish caricature of a nurse’s outfit. Like a slutty Halloween costume multiplied by a factor of a billion. Somewhat unsurprisingly, it struggled to contain breasts that were bigger than even Mattie’s impressive set.

“Nope! My new friend Tiffy here wants an upgrade and I’ve offered to buy.”

Tiffany shuffled awkwardly. She still very much wanted to go through with this, but she could feel oncoming fourth thoughts that actually no, no matter how much a penis appealed to her, jumping headfirst into getting a stick shift the size of her thigh installed wasn’t a healthy decision to make. But then those were followed by fifth thoughts that it would be a bit shitty of her to turn around and say “I changed my mind again” after promising to give it a try. On the plus side, she supposed, she wasn’t the one paying for it. Which was a plus not because she cared about her father’s money – fuck the rich asshole and fuck his dumbass bitch trophy whore. No, the big benefit was that she didn’t have to worry about letting her libido go to her head and prompt her to spend millions on something impractically huge. She wasn’t sure what kind of budget Mattie had, but it almost certainly couldn’t compare to hers, and that alone was likely to result in some amount of restraint.

“What package does she want?”

“Oh, she’s letting me decide.”

“... Mattie, she’s a first timer, please keep things reasonable.”

“Oh, hush, it’ll be fun. We’re gonna go all-in, baby. The Deluxe Doug package. Front and rear end, high performance, high output, double-bore, maximum horsepower, and why not, let’s splurge on a six- no, seven point five.”

“Seven point five what?” There were a lot of questions on Tiffany’s mind, jostling for a place on her tongue, but in the end that was the only one that managed to make its way out aside from confused sputtering and stuttering.

“Yooooou’ll seeeeee~” Mattie replied, practically singing. “Come on, let’s get you to the table.”

Tiffany followed dubiously. Those lurking fourth thoughts were getting more and more insistent with every goddamn step deeper into the cavernous clinic. She didn’t know what, exactly, the Deluxe Doug package entailed, but she could make some reasonable guesses as to what the various euphemisms that Mattie had spewed actually meant. And if she was right, she had every reason to be apprehensive.

The table was exactly the same as every single doctor’s examination table that Tiffany had seen. Blue plasticy cushions with off-white paper spread over it that could be removed and replaced in between patients, slightly tilted upwards at one end for reasons that had never been entirely clear to her. Beneath the table itself were a set of cupboards that typically contained various sundry medical instruments, but lord knows what they contained here. “Make yourself comfortable,” the nurse, named Daisy if Tiffany hadn’t horribly misheard, interjected. Now that she was no longer behind the kiosk, it was clear that she also had a package, and that, like with her breasts, it significantly outsized Mattie’s. Glistening black cockflesh hung heavy and low from under her comically small white skirt, with fat, white-furred testicles awkwardly shoved behind her, kept at bay by her thick, womanly thighs. “The Deluxe Doug is kind of a big change to be making all at once. Normally we’d recommend taking things slower, but Mattie is... very bullheaded. Once she’s set on a bad idea it’s very hard to change her mind.”

“It’s not a bad idea!”

“You are aware that you ordered a newbie a seven point five, right?”

“Well, maybe if someone hadn’t banned me from experimenting with that particular line I wouldn’t have to resort to experiencing it by proxy.”

“Mattie, you’re my friend. Which is why I feel like it’s my job to remind you of the five billion dollars of property damage you caused that time you bullied me into letting you get a six point three.”

“Yeah, but you could at least let me try a one or two.”

Tiffany elected to not acknowledge the sinking realization of what exactly all these numbers referred to. Her mind wasn’t ready to embrace that particular realization. “So, like, how exactly does this work?”

“Trade secret~” Daisy replied with a coy wink. “As of now, we’re the only people in the world who can do what we do, and we intend to keep it that way.”

“Okay but like, you’ve still gotta do something to get the whole thing started, right?”

“Oh, no, it should already be kicking in.”

“wait hold on what no how”

“Like I said! Trade secret~”

Tiffany had several potential replies in mind, all of which completely failed to materialize. Everything she wanted to say jostled for space on her tongue and ended up jamming together so that nothing came out, and then a sudden massive jolt of arousal washed them away. Her body lurched and convulsed slightly before flopping backwards as the strength required to remain upright fled her body. “What the fuck was thaaaaaahnnnn~” Once again, whatever train of thought Tiffany was attempting to have was derailed by a colossal orgasm, the likes of which she’d never seen in her entire fucking life. And she’d had a lot of sex.

“That,” Mattie said, grinning widely. “Is Wingerization.”

Once again, any reply Tiffany could have made was superseded by a wave of pleasure, and then another, and another. Each one came quicker and somehow more intensely than the last. Her arms and legs twitched irregularly, her hips bucked weakly, her tail quivered, and her tongue lolled out of her slacked jaw, a thin stream of drool dribbling its way down onto the bed’s wax paper coating. “Gnnnnn fuuuuuck~” she managed to moan in between orgasms.

“Let’s see, first comes the front and rear end. Oh, by the way, we’re running a special this month. Newcomers get extra dairy beverage free with their first upgrade.”

Tiffany wanted to interject that Daisy was beginning to mix the metaphor, but unsurprisingly managed nothing beyond a pitiful moan. With some amount of struggle, she managed to force her arms to move upwards and rest on her already ample chest, just in time to feel it surge outwards.

Tiffany made a point to never wear anything that wasn’t a designer label. Everything in her wardrobe, from skirt to blouse to the fucking hair tie she was currently using to hold her ponytail was a brand name straight from France or Italy, maybe New York or LA in a pinch. And, of course, that included her bikini. It wasn’t nearly the most expensive thing in her wardrobe, of course, and not even the most expensive of her bikinis – only about four hundred dollars. And, as established, it wasn’t even four hundred of her own dollars. But she still cringed a bit as she felt the swimwear straining against her growing breasts. Less because of the cost and more because of what it represented. This had been custom made to her exact measurements, dammit, and she still had a wardrobe full of the things and she was gonna hafta replace them all.

They felt tight, too. Full, in a way they never had before. Against her better judgment, she gave them a gentle squeeze. “Ahn!” She was rewarded for her curiosity with a slight release of pressure and a spurt of milk. “Oh fuck, that’s good,” she muttered to herself as her reluctance began to erode. This was, of course, still a terrible idea. That hadn’t somehow magically become no longer the case in the past few minutes. But somehow, she could no longer really bring herself to care that it was a bad idea.

“Oh, you think this is good? Hon, you’ve just gotten started.” Mattie grinned eagerly as she reached over and slipped her finger in between Tiffany’s cleavage, hooking it around the failing green bikini and gently pulling it downwards. Her breasts bounced slightly as they escaped their fabric prison, which framed them from below and the sides. They heaved on top of her otherwise slender frame, easily the size of her head and still growing. “Now, if you’ll excuse me, I want some ‘a that dairy beverage.”

“Oh fuck yes suck my tiiiiitsssssss.” Tiffany hadn’t needed to say anything – Mattie seemed to have made up her mind regardless – but she wanted to express her enthusiasm. The mouse latched onto a nipple, and Tiffany quickly grabbed the back of her head and pressed it into tit as hard as she could. She very briefly worried that perhaps she was overdoing it. She didn’t exactly have any kind of emotional attachment to Mattie, but she didn’t want to suffocate the woman with tit. Her worries were quickly assuaged, however, as Mattie held up her right hand, giving a thumbs up.

Her left hand was lifted up and placed on Tiffany’s thigh, gently stroking her soft fur as it, too, filled out. Had already filled out, if she was honest. She had been a bit distracted by up top that she’d almost missed out on down below. She had always been very top heavy, of course. And that didn’t seem to have changed, though she couldn’t really get a good look at her butt. It felt big, though not as big as her tits. But it was big and at the moment that was all she really cared about. The specific nuances of how big everything was in relation to everything else was for Future Tiffany to deal with. Present Tiffany currently had one thing and only one thing on her mind;

Bigger.

Mattie gingerly pulled away. Tiffany weakly attempted to pull the mouse back to her tit but her arms felt like wet noodles. Mattie easily broke free of her grip, and the squirrel let out a pitiful moan as her tits unleashed thin sprays of liquid. “Don’t worry, babe, I’m not done with you yet!” She grinned, which really wasn’t a new facial expression but Tiffany felt it important to acknowledge anyway. She climbed on top of the examination table, and then sat on Tiffany’s crotch. Her enormous rod wedged itself between fat squirrel tits that was quickly rivalling Mattie’s own pair, and the mouse grinned further as she reached down and gave them a squeeze around her cock. “I toldja I was gonna fuck you while you grew, didn’t I?”

Tiffany didn’t really bother to respond, this time. She got the impression a response wasn’t really expected or warranted, and besides which she had other things on her mind. Like the large, drooling pink cockhead that was directly in front of her face. She was no stranger to titfucks, of course. On the contrary, it had always been a personal favourite in terms of sex acts. Titfucking let her show off her big natural tits, and most other sex acts didn’t quite let them get the level of attention she preferred. She liked her breasts. She was proud of them, and it felt good to have them squeezed and groped and sucked and fucked. Plus, titfucks were quick and relatively easy to clean up, and unlike a blowjob she got something out of it. Titfucking was one hundred percent her preferred casual sex act, and she had a lot of casual sex. So she had a lot of experience with titfucks.

What she didn’t have experience with was titfucking a cock bigger than her arm with tits bigger than her head. That was a new one for her. A new one that she was very eager to experiment with. She opened wide and darted forward, taking Mattie’s cockhead inside of her mouth, licking and suckling enthusiastically. She placed her hands on the sides of her still growing tits and began to pump them along the length of Mattie’s shaft.

“Well, someone’s enjoying herself! I was expecting this to take way more coaxing, to be honest, but I ain’t gonna complain!” Mattie got a firm grip on Tiffany’s tits and began thrusting against the grain of the titfuck. “Oh fuck you’re good at this,” Mattie muttered as Tiffany was rewarded with thick spurts of precum that went directly down her throat. It tasted really good, better than cum typically did in her extensive experience. Sweet and fruity, without any of that acrid bitterness that characterized the flavour of semen. Oh, but that didn’t mean it was lacking in the salty musky virility that kept Tiffany coming back for more. But instead of having to fight against the otherwise nasty taste, it instead served to compliment it. Reinforce it, and in turn was reinforced. It tasted more like cum than any cock she’d ever sucked before and she loved it.

Mattie’s hips began to both pick up the pace and lose their rhythm. She kneaded Tiffany’s boobs roughly, like a kitten attempting to coax more milk from her mother. And was rewarded with exactly that, of course, the constant spray of dairy beverage intensifying and soaking her hands. She leaned forward, pendulous tits hanging heavily in front of Tiffany’s face in a delightfully tantalizing manner. God, they looked so delicious. That wasn’t a word Tiffany had ever really associated with tits before now, but she frankly couldn’t believe she’d never considered the possibility. The only thing keeping her from immediately grabbing a teat and indulging herself in her own helping of dairy beverage was that her newfound love of tits was still outweighed by her hunger for cock. Sucking Mattie’s tits would require her to give less attention to the titfuck right as it was approaching the climax, and that simply wouldn’t do.

Mattie’s eager grin had vanished, her breath came ragged and irregular and heavy – much like her thrusting. Her long, thin, ropelike tail whipped wildly back and forth, in time with her cock swelling at the base. That swell travelled its way up the length of her shaft, followed by several other swells of increasing magnitude. This was it. Tiffany leaned as much further forward as she was physically capable of given her current position, taking as much of Mattie’s cock inside of her mouth before being rewarded with an eruption of cum.

It was like giving a blowjob to an actual fucking firehose turned up to full fucking blast. Almost overwhelming, and certainly more than Tiffany was capable of handling. As much as she hated to waste any cum, most of it ended up spraying out of her nose and mouth, painting her face and arms and tits with a thick coating of off-white. Mattie’s orgasm was copious, and Tiffany eagerly used her breasts to milk the throbbing meat for more and more and more, until there wasn’t anything more to give. Mattie flopped forward, sliding her hips back slightly so that they ended up face-to-face with their tits mushed together. “Well!” she said after a moment of recovering her bearings. “I don’t remember anything about the Deluxe Doug coming with a free high-protein shake, but I don’t think either of us is gonna object.”

“Oh god, that’s so fucking corny,” Daisy interjected wearily.

“Hey, don’t blame me, I’m just carrying on Mr. Winger’s longstanding legacy of cheese.”

“You’re laying it on a bit thick, babe,” Daisy replied as she walked over. “Get offa the customer so she can have a look at her mods.”

“Can’t I’m dead.”

“Don’t fucking lie, Mattie, that was like your twentieth cumshot today you insatiable slut.”

“Fiiiiiiiiine,” Mattie whined as she pulled herself up just enough for Tiffany to slip off of the examination table. Once the squirrel was safely out of the way, she collapsed limply onto her front and began snoring.

“She’s faking it, by the way.” Daisy rolled her eyes as she gently grabbed Tiffany’s hand and led her away to a different part of the cavernous clinic. “Don’t take anything she ever says or does seriously. She loves fucking with people. It’s insufferable.”

“She seems nice enough,” Tiffany replied, more focused on not falling over than anything else. Every goddamn muscle in her body felt like rubber, and it was really only Daisy’s assistance that kept her from falling onto her face. “I can imagine she’s probably more tolerable in small doses, though.”

“Sometimes I question if I’d go so far as to even say that. Here we go, mirror. What do you think?”

Tiffany took a moment to take in the changes. And then a moment further. They were substantial. She had gotten to feel and see most of them happening firsthand, of course, but somehow seeing her reflection really put them into a perspective that just having them didn’t adequately do. Her tits were gigantic, easily bigger than Mattie’s and even coming close to Daisy’s. A good three times the size of her head, heavy but still firm in a way that tits that were naturally that big wouldn’t be. But they didn’t feel fake, or even really look all that fake. She hefted them, and her hands sank into soft, warm titflesh and more milk was coaxed out from the pressure. Her ass was, of course, no slouch. She turned around slightly to take it in – much more reasonably proportioned than her tits, but still enormous. Her bikini bottom looked more like a goddamn g-string. Completely consumed in the rear by massive, perfectly round cheeks the size of her head. She reached down to give them a feel and quickly found herself completely lost, utterly focused on playing with her ass.

“Mmm, I like it a lot.”

“Good!” Daisy pulled out a clipboard and pen from the depths of her cavernous cleavage and checked a few things off. “That’s phase one done, then. Front end, check. Rear end, check. Phase two should be beginning right about... now.”

“Wait what do you mean phase twaaaaaaaaahngggggg~” Once again, whatever response Tiffany had was washed away by a wall of orgasm. Her legs immediately gave out beneath her, and she collapsed backwards. She only didn’t land on her butt because Daisy, thinking quickly, darted behind her and caught her.

Daisy was, Tiffany idly noticed, very large. Taller than Mattie, that much was sure. The size difference left her head gently nestled into ample skunk cleavage. “Stick shift comes standard with every Deluxe Doug package installation, of course. High performance, high output, double-bore, maximum horsepower.”

There was a lot that Tiffany wanted to say in response, and she managed exactly none of it once again. First came the high performance – she could feel the strength slowly flowing its way back into her muscles, and then more. She watched her reflection in awe as muscle definition that she’d never come close to having before appeared out of nowhere. Not, thankfully, enough that it impacted her curves negatively – instead accentuating them. Her abs and arms were rock hard, while everything else remained perfectly soft. Though, as soft as they may have been, she could see her thighs thickening with power.

“They are, of course, incredibly dense. We don’t want muscle mass to impact the aesthetics of the Deluxe Doug, unless the customer specifically requests the Mr Universe in addition. Buuuuuut I get the impression that wouldn’t be your speed.”

Tiffany was too busy looking at herself in the mirror to respond. She took a step forward and marvelled at how effortless it felt. Like she didn’t have tits three times the size of her head dangling off her chest. She flexed an arm and stared in awe at the bicep that was formed – she’d never managed a bicep at all before!

“You should be capable of lifting up to around ten imperial tons? Though, obviously, that can be adjusted further if you’re willing to pay a little extra, or you could just work out.”

“Holy shit.”

Daisy shrugged. “Honestly it’s one of the more tame parts of the Deluxe Doug, if I’m honest. At some point we should consider upping it to twenty or thirty tons, at least.”

Tiffany opened her mouth to reply, but all that came out was a strangled gurgly moan as the stick shift that apparently came standard decided to make itself known. Daisy caught her once more as her hips reflexively thrust and thrust and thrust as her brand new jet black horsecock pumped out gout after gout after gout of thick white cum, coating the mirror quite thoroughly. “A horesecock?” she managed to ask incredulously as the pun slowly dawned on her.

Daisy nodded in affirmation while Tiffany kept on cumming. “An excellent start, but you did order maximum horsepower. I would hardly call a piddly foot anything close to maximum, though. Let’s shoot for three and a half.”

“Th-three and a haaaaaaaaaanggggg~” was all Tiffany managed before her furry balls abruptly doubled in size, going from grapefruits to watermelons – there was the high output, she noted through the haze. Daisy smiled a salesman smile and reached down to grab Tiffany’s cock, jerking it off as it grew. The pleasure spiked, and it lurched bigger in time with the spurts of cum – and with every goddamn inch it felt better. God, if cumming with a non-Wingerized cock felt half as good as this, it was no wonder that boys were so completely obsessed with sex the way they were. The growth eventually slowed down, and then stopped, but the orgasm didn’t. Tiffany opened her mouth to say something, anything, but all that came out was a strangled croak as the pleasure spiked again and again and again.

“That just leaves the double-bore. Hope you like having two horsecocks, kiddo.”

As if on cue – and Tiffany wasn’t entirely sure it wasn’t on cue – a second horsecock erupted from her flesh, just below the first one, and her balls divided into a second pair, more than a match for the original. Her second stick-shift had already joined the first in orgasm, pumping out twice as much unfathomable volumes of cum as before. The results were, frankly, mind-blowing. At some point, she wasn’t entirely sure when, she began to jerk off the cock that Daisy wasn’t. At some point after that, or possibly before, she was once again not entirely sure, Mattie joined them, her face buried in fat squirrel nuts, squeezing and groping at them with so much gusto that Tiffany was surprised it wasn’t painful.

Tiffany wasn’t entirely sure exactly how long it lasted at first, or how long it took for her mind to regain a semblance of coherent thought after that. Luckily, Daisy quickly stepped in to fill that blank. “Jesus, five and a half hours. That’s a lot for a first-timer.”

“Five hours?” Tiffany managed to ask, just barely managing a technically polysyllabic response.

“And a half, yeah. I’m gonna suggest we take a break before we move on to phase three, take some time to rehydrate and recuperate.”

Six hours ago, Tiffany would have agreed wholeheartedly to that proposal. Now, though, there was only one thing on her mind.

“No. More. Bigger. Now.”

“I dunno, kid, you’re going awfully hard for a first timer. You should really take a bre-”

“More. Bigger. NOW.”

“Well, okay,” Daisy replied, clearly uncertain. “Phase three, then. Seven point five – god, dammit, that’s gonna be too much, but you have paid.”

“Technically I paid for this round, but she agreed and anyway she’s clearly taking to this like a fish to water. About as well as I did back in the day!” Mattie sauntered forward, got onto her hands and knees, and wiggled her big fat mouse ass in the air. “Now come on, babe, I’ve got two holes that are in desperate need of a good fillin’ while you grow, and you’ve got two big ol’ cocks that are just perfect for that job.”

“Oh, no. No no no no no, absolutely not. She’s just about to get a fucking seven point five, there’s no way you’d survive.”

“Seven point five what?” Tiffany finally managed to ask.

“That’d be the magnitude of earthquake you produce when you walk, babe.”

“Yes, and a seven point five is well into miles tall and you’re six foot even you goddamn idiot you will die.”

“Wellllllllllll,” Mattie replied, her voice tinged with a palpable insincerity. Tiffany barely registered it – her body lurched forward, her libido taking the wheel. She knelt down behind Mattie, who used her tail to steady both enormous cocks while Tiffany roughly tore the pink bikini bottom off. “Since someone seems deadset on fuckin’ me while she grows, I guess that means I’m just gonna hafta get bigger too. Darn.”

“Oh my god, please don’t tell me this was your plan all along you utter psycho.”

“Would you rather our new client fuck me to death?”

Daisy threw her hands up in exasperation. “Fine! But no more than a six point five, and I’m gonna be having words with Corporate about your behaviour.”

“That’s no way to speak to your employer, young lady~” Mattie replied, causing a lot of things to fall into place in Tiffany’s mind while simultaneously raising a lot more questions.

Of course, there was time for questions later. Right now she had much more important things to attend to. Like, for instance filling both of this slutty little mouse bitch’s holes with as much goddamn horsecock as could fit. “Fuuuuuuuuck!” her body groaned, low and lewd. There was a strange sort of disconnect between her actions and her thoughts. Like she wasn’t actually in control of her body anymore, though that also wasn’t quite it because she was absolutely in control of her body. She had been the one who stepped forward, she had been the one who violently tore off Mattie’s pink bikini bottom, she was the one who grabbed Mattie’s big fat ass, and she was absolutely the one who made the decision to shove both her big fucking horsecocks into both of Mattie’s holes at the same fucking time. She was making the decisions, she was in control of her body. She’d consciously made the decision to fuck the mouse. It just didn’t feel like it.

Jesus, Mattie was fucking tight.

Tiffany wasn’t exactly used to having one normal sized dick, let alone two massive fucking horsecocks. So she didn’t really have any points of comparison for what was a normal amount of tightness. But still, given what admittedly little she knew about Mattie, the mouse felt almost fuckin’ virginal. Though, of course, on the other hand, she was apparently in charge of the local Wingerization clinic so who fucking knew if she was naturally this tight or not. It was already almost certain that literally nothing else about her body was natural, after all.

Though, of course, there was currently increasingly little about Tiffany’s body that was natural at this point either. Not her tits, not her ass, not her muscles, definitely not her cocks, and most importantly not her height. She could feel her body slowly getting more, a fraction of an inch at a time. It was almost agonizing, like it was teasing her. She was, after all, getting a seven point five. Obviously she wasn’t exactly capable of doing the relevant calculations off the top of her head, but Daisy had said it was miles. Plural. So at least two miles. Two miles. And she was currently very, very far away from two miles tall. If the growth didn’t pick up the pace it would undoubtedly break her.

And, while she was on that train of thought, there was another concern raised by the realization that she was gonna be at least two miles tall. “Hey, uh, how big is this place?” she asked, suddenly feeling nervous. Nervous enough to cut through the fog of lust and ask a coherent question (though at the same time not quite nervous enough to stop fucking Mattie in both of her tight slutholes). “Because, uh, I don’t know how big a seven point five is exactly? But I also don’t know if this place is big enough for a seven point five.”

“Don’t worry about it,” Mattie said tersely. “It’s fine, we’ve got good insurance.”

“That is the exact opposite of reassuring!”

Daisy sighed wearily. “Unfortunately, she’s right. It’ll be fine. Just trust me. We’ve got Contingencies in place. Otherwise we wouldn’t offer this particular service.”

“Well...” Mattie wasn’t the most reliable source of information, but Daisy so far had made it clear she was the responsible one of the group. And her logic did actually make sense – Mattie was obviously a lunatic, but the greater Wingerization Clinic company still would likely not offer macrofication as an option if they couldn’t somehow deal with the inevitable property damage. “Okay,” Tiffany muttered uncertainly. “If you say so.”

“She literally said the exact same thing I did!”

“Yes but you’re you, Mattie.”

“Hmph,” Mattie grunted indignantly. “Anyway, that’s enough talking, hurry up an’ grow!”

“I’m not exactly in control of the speed here, okay? I’m doing my best!”

“We can pick up the pace then.”

“No! No we can’t!”

“Actually picking up the pace sounds nice right about now,” Tiffany grunted in between thrusts. “This is... a bit slow.”

“Yes that’s the point. You literally jumped into this after a five and a half hour orgasm, kid, if you don’t take it slow you’re gonna hurt yourself.”

“Okay, but – mnnnng,” Tiffany interrupted herself with a low groan and an exceptionally powerful thrust. “This feels really fucking good and if this keeps up for however long it takes for me to reach however big I’m gonna get I think I’m gonna go crazy.”

“Mn,” Daisy grunted, clearly unconvinced. “I get where you’re coming from, kid, but... Seven point five is a lot for a newbie to take in at once.”

“Then don’t do it all at once, doy,” Mattie interjected. “Come on, you’ve been doin’ this shit for years, Daisy, you should be able to figure this out. If you don’t pick up the pace she’ll be growing for actual literal days.”

“Mnf.”

“Like, tell me which you think is less healthy for a newbie; growing really big really quickly while feeling really good? Or growing really big really, really, really slowly, like an inch or two at a time while still feeling really good?”

“Okay, okay, you’re right, you’re right. Jesus.”

“Look, why don’t you just let me take over?”

“No.”

“I promise not to go too mad with power.”

“No going mad with power at all!”

“Fiiiiiiine, if you wanna be boring.” Mattie rolled her eyes, even as she wrapped her tail around Tiffany’s waist, pulling the squirrel in closer. “I promise to only grow our client as big as she requested to grow-”

“As I recall, you were the one who decided on that number,” Daisy interrupted.

“As big as she requested to grow. That means that she gets to be the biggest. And I promise to only grow myself the bare minimum needed to not get dicked to death. Is that good enough for you?”

“No, but I’m handing the reins over anyway. But I wanna make it abundantly clear that when corporate comes calling about the inevitable debacle that I had no say in the matter. This is all on you, capisce?”

“That’s fine. I’m fairly certain that corporate will see things my way anyway.”

It was Daisy’s turn to roll her eyes. “I kinda doubt it, but whatever. It’s all on you now, okay? I wash my hands of this bullshit.”

“That’s all I needed to hear. Don’t worry, I have no intention of breaking my promise. I’m a mouse of my word, after all!”

“Why do I find myself not believing you?”

“Pattern recognition. Now shut up and get over here, I’ve still got a vacant hole and you’ve got a nice big cock to fill it with.”

“Ugh. Fine. Whatever.” Daisy made her way around to Mattie’s front. “Open wide, let’s get this over with before you get too big for me to fuck.”

“Oh don’t worry about that, I never said anything about not making you bigger.”

“Oh. Of course you didn’t. I knew there was a loophole somewhere.” Still, for all her apparent reluctance, she still angled her cock down, leaving it mouth-level with Mattie. “Come on, let’s just get this shit over with.”

“Of course~” Mattie replied, her tone sing-song. “Ahhhhhhwp~” Her vocalization was cut off by Daisy shoving her gigantic black cock down the mouse’s tight throat.

“God, you’re such an asshole,” she muttered, beginning to thrust.

“Yeah,” Tiffany grunted. That slow burn of growth, which had faded away briefly, had returned with a vengeance. “Mnf, but you’ve gotta admit that she knows how to have a good time.”

“Mn. Yeah, she does.”

The ground almost seemed to shake beneath them. Hell, for all Tiffany knew it was shaking. There was a deep, low rumble echoing throughout the clinic’s cavernous interior – it took a moment for it to click that it was coming not from the ground but from her. Where before, Mattie’s ass dwarfed her hands, now she found herself easily grasping both cheeks in their entirety. She could feel her duo of cocks prodding against Daisy’s solo shaft inside of Mattie, and came to the startling realization that she was the more hung of the two by a significant margin. And that wasn’t the only thing about her that was bigger than Daisy. Moments ago she’d been shorter than the skunk by a significant margin. Now, all of a sudden, she was looking Daisy in the eye – even factoring in that the skunk was standing up straight and she wasn’t. She had started out as the shortest person in the room, and now suddenly she was the tallest by a significant margin.

A significant margin that was getting more significant by the second. Her body lurched bigger and bigger and bigger in uneven spurts. Inches became feet, feet became tens of feet. And the bigger she got, the better she felt. Like someone had taken all the good sensations she’d felt so far – the growth of her breasts, her ass, her cocks, her muscles, the titfucking and the handjobs and the sensation of her dicks sliding into Mattie’s holes – put them all together and multiplied them by a factor of a billion and pumped them into her all at once. Her mind was awash with an almost unfathomable pleasure and she wanted more.

“Biggerrrrrrrrr~”

“Be patient, kiddo. You’re gonna get plenty bigger by the end of this, but Mattie’s going as fast as she reasonably can without hurting you.”

That was decidedly not what Tiffany wanted to hear. Something in her mind clicked, some sort of primal, animalistic instinct she hadn’t even known was there until now. “BIGGERRRRRRR!” she roared in time with quadrupling in size.

“Woah” Daisy exclaimed pulling away from the suddenly very overstretched body of Mattie. “Mattie I know you said we needed to go faster but that’s a bit much.”

“I didn’t do that!” Mattie shouted, quickly growing to keep up with Tiffany. The squirrel already found herself having to bend over in order to fit in the clinic, and was only getting bigger. “I think she’s hijacked the Wingerization process!”

“Oh, shit.” Daisy’s eyes widened in shock. “The last time that happened was you.”

“Yeah, no kidding. We’ve had like three people in the history of the company that ever managed this. When this is all over we are absolutely offering the kid a management role. She’s a fuckin’ natural talent and I wanna take advantage of that.”

“You’re not gonna hear any objections from me,” Daisy said. “She took the Deluxe Doug like a god damn champ, a job offer is basically a given.”

“Less talking more sticking your dick back in my mouth before she outgrows the warehouse.”

“Again, not gonna hear any objections from me!”

Tiffany only dimly registered the conversation going on below her. Something about a job offer? She wasn’t particularly interested in any kind of job right now. Hadn’t ever even really considered it. Her long-term plan had pretty much consisted of coasting on her daddy’s fortune, letting the various people he’d hired to manage his finances continue on managing her fortune. She had enough money, between her generous allowance and her inevitable inheritance of her daddy’s various assets and companies and funds, that she’d probably never have to worry about working ever if she didn’t want to.

But, well, if working at a Wingerization Clinic was even halfway to this level, she abso-fucking-lutely wasn’t turning that opportunity down.

Of course, right now she had other things on her mind. Like, for instance, the fact that her growth had slowed down. That wouldn’t do at all, so she idly quadrupled in size again. The clinic didn’t stand a chance – it crumpled away around her massive form like it was made of goddamn paper. She stood up – and up and up and up, towering over the surroundings at god damn hundreds of feet tall, maybe even thousands. And she wasn’t nearly done yet.

In a brief moment of lucidity, she noticed her two companions dangling from her cocks. Still alive, it seemed, which was good. As much as she had gone extremely thoroughly mad with power at this point, she didn’t relish being a murderer, especially considering these two seemed like fun. She quickly removed them from her cocks and placed them on the ground, side by side. They barely came up to her hips – make that to her knees, she corrected herself as she surged a few hundred feet bigger. “Sorry about that,” she said, just a little sheepishly.

“It’s fine. I’m pretty fuckin’ durable. Sort of a necessity in this line ‘a work, you know? You’d hafta have gotten waaaaay bigger’n you did before pullin’ me off for it to be a problem.”

“Yeah, well, still, I did get a little carried away. I think. That was me?”

“Yeah, that was you. Congratulations on uncovering a natural talent for Wingerization, kiddo! I foresee a lucrative career ahead of you.”

“Honestly, I’m surprised you’re as small as you are!” Daisy interjected, eliciting a confused grunt from the much larger squirrel. “You’re not anywhere near a full on seven point five. I was expectin’ you to way overshoot it.”

“That was prolly not a smart thing to say, given the situation.”

“Huh?”

“S-so you’re saying I could go bigger, then?” Tiffany said, her voice quivering slightly. There had been a brief moment of lucidity, resulting from worrying for the safety of her new... friends? Coworkers? Whatever her relationship with Mattie and Daisy was. But oh boy had the thought of getting even bigger than she already was (and she was already several thousand feet tall) enough to completely obliterate that lucidity. She could feel herself slipping back into that growth-crazy headspace and she wasn’t sure how to feel about that.

“Hooooo boy,” Daisy muttered, realizing her mistake. “Just... try not to go too overboard, kid? Please?”

“Mnnn, I make no promises.” That rumbling from before had returned, louder than it had been. “I guess I should prolly spend some time figuring out how to, like, do this stuff on purpose, though.”

“That’s a good idea! So, given your rough starting proportions and weight, for a seven point five you’re gonna wanna get to about-”

“I can figure out getting to specific sizes later,” Tiffany said with a shrug. “Right now I just wanna make it do when I want it to do.”

“Oh.” Daisy sighed wearily. “Just... be careful of causing too much property damage, okay?”

“I thought you guys had contingencies?”

“We do have contingencies. It’s still extremely expensive, and just a bit of a pain in the ass.”

“Well, okay, fine, I can just sorta...” Tiffany moved slowly and cautiously, acutely aware of exactly where her feet were falling and how hard they came down. There was only so much she could do, considering how fucking massive she was. Her paws barely fit in the streets anymore – thankfully the Wingerization Clinic was already on the outskirts of town, so the amount of available space widened considerably as she went on. The mere act of moving herself out of the danger zone hammered home the fact that actually maybe being a bit responsible about this wasn’t that bad an idea. Getting unreasonably massive was fun, sure, but it was difficult to even exist too close to civilization without hurting someone. Or, uh, lots of someones. It was a somewhat sobering thought. “Maybe not too big.”

“A seven point five is about fourteen thousand, five hundred and twenty feet,” Daisy said, voice tinged just slightly with relief.

“Hey, this is a good thing. You’re more responsible than me but you still know how ta’ have fun. That’s gonna make you look good to the higher ups.”

“I still kinda wanna get unreasonably huge.”

“Well, we’re pretty far out. You’ve got a couple miles of wiggle room, and earthquakes are a lot easier to deal with than just accidentally stepping on people because you’re too fucking big.”

“Right. Let’s see if I can do this...” Tiffany closed her eyes and focused. Or tried to, at least. She pointedly still didn’t actually have any idea how this shit actually functioned, and so she didn’t really know where to start. All of her earlier growth, or at least the stuff she’d been in control of, had just... sort of happened. So maybe the best option now would be to just let it happen again. Except just letting it sort of happen hadn’t exactly given her much in the way of fine control.

“Just take your time. If you force it you’ll just hurt yourself. You’ve already gotten farther than most people manage on their first try.”

“I mean, I guess? It’s just that I feel like I could do more, I just don’t know how.”

“Oh, you absolutely can do more,” Mattie interjected, earning herself a dirty look from Daisy. “I’ve seen this exact thing before. It’s not common, but if you can do this much on your first try then I’m certain you can do way more than this.”

“Okay but how.”

“It’s hard to put into words. You’ve kinda gotta figure it out on your own. Don’t worry, even the most prodigious prodigies don’t immediately grasp every single little nuance of the process without being taught anything. That’s not how this works.”

“Well okay that wasn’t helpful.”

“The problem is that you’re thinking too hard,” Mattie said, reassuringly. “You were doing just fine when you let it happen but now that you’re trying to do it you’re getting in your own way. Luckily, I know exactly how to deal with this exact situation.”

“Do you, now?” Daisy interjected wearily.

“Hush, you. Tiffy, do me a favour and Sit down, please? Just sort of rest against those mountains.”

“I’m going to get out of the blast zone before this inevitably goes wrong.”

“Hush, you.”

Sitting down was, it turned out, something of an ordeal. Tiffany was used to not having anything down there and now she had four testicles that were bigger than her head. It would have been logistically complicated even if she was used to having testicles. The trick, it seemed, was to move extremely slowly and carefully and to spread her legs very wide. “Okay, that should do it.”

“Okay?” Tiffany hadn’t actually properly sat down all the way yet, leaving her sort of squatting against a mountain. Which was a really weird sensation – this was a mountain and yet she was leaning against it like it was a really stiff beanbag chair. But whatever, Mattie clearly had a plan in mind and Tiffany wasn’t going to question it.

“If the problem is that you’re thinking too much to be able to do the thing,” Mattie said, quickly growing to roughly match Tiffany’s size. “Then obviously the solution is to give you something else to think about.”

“I-”

That was as far as Tiffany managed to get before Mattie grabbed her ankles and roughly yanked them up and over her head. “Ah, one moment,” she said before abruptly sprouting an extra set of arms, slightly below and behind her original pair. “You know how it is. You’ve got the relevant parts but it takes a bit of work to get at ‘em.”

“What-” Once again, that was as much as Tiffany managed to get out before Mattie made her next move. Her new set of hands darted down, lifting the squirrel’s colossal ballsack out of the way before slamming her cock in all the way to the hilt in one fucking go.

That, it seemed, did the trick. With every powerful thrust of Mattie’s hips, both girls surged bigger by thousands of feet. “There, see, that’s not so hard. You’ve just gotta let it happen.” Tiffany had no earthly idea how Mattie managed to speak so perfectly clearly despite fucking her like an earthquake. Years and years of practice, she supposed. Whatever. It felt good and she didn’t care. “Just focus on how this feels. That’s the important thing. From there it’s just a matter of making yourself feel like that again.” Easy enough for her to say; it was extremely difficult to think about anything other than the enormous dick that was currently inside of her. She tried her best to wrap her head around the feeling of growth but she just plain couldn’t manage it.

Which, she supposed, just meant that she was going to need more practice. Darn.

“Don’t worry if you don’t grasp it right now. We’ve got plenty of time~” Mattie licked her lips, and Tiffany could feel the mouse’s cock begin to swell at the base. “In the meantime, just enjoy yourself and then after we, ah, finish, we can discuss the future of your employment with WingerCorp~”

That enormous swell travelled its way up the length of Mattie’s shaft, followed closely by another, bigger swell, and then another and another. There was a lot that Tiffany just wanted to say, but obviously she had a hard time managing to say anything. Ultimately, all she managed was a low gurgle.

“Oh, goodness no, this isn’t an unusual occurrence at all,” Mattie replied, somehow intuiting one of Tiffany’s questions. “Or, well, I suppose that the specifics are unusual. Usually you don’t see customers who manage to hijack the process, but otherwise this isn’t too far off from the average workday.”

That was about all Tiffany could take. She decided it was probably best to just zone out for now, before she started thinking about the fact that she was very likely going to go through this on a daily basis  from now on. Even just thinking about the possibility was more than she could handle. Instead, she let the fog of arousal embrace her as Mattie finally came.

This had been one hell of a job interview.