Bill becomes Jill

“C-could you please get this over with quick? I’m not really, uh…” The cat femme trails off as her eyes lock onto the fox approaching with a measuring tape. She's unfortunately dressed in nothing but an unbuttoned lab coat and a tiny black thong, leaving her bubbly rear completely exposed. The clerk said he needs my measurements to get the right size, but I'm not so sure about this...

“Of course, ma’am. Forgive me if I have to get a little rough for the sake of… expedience.”

“Hey, hold on! That’s not what I mean-aah!” The feline’s body goes totally stiff as the employee’s arms encircle her waist. “What on earth are you doing?! Is that completely necessary?”

“Just getting a waist measurement, ma’am,” the fox replies smugly, his face inches away from her enticing ass cheeks. The cat can’t see it, but his expression twists into a devious grin as he slowly nuzzles into the feline’s luxuriously soft ass crack. She’s so gullible! Is this her first day or something?

“O-oh geez!” the cat cries out as she feels his cold nose probing her cheeks. This is not okay, NOT OKAY! She tries to pull out of the fox’s grip but he tightens his hold, hugging her ass against his face and burying his muzzle deep into her cheeks. “Fffuck, lemme go!”

Great, I’m getting manhandled by a horny pants salesman! First the Gender Bender goes haywire, now I have to deal with this! I should have just stayed at the lab and played with myself. Ugh...

The good news is that Bill Katt’s gender-swapping machine works like a charm. It was quick, complete, painless, and even caused a warm, tingly euphoria. The bad news is that it worked on him, which was not the intent. It was just the accidental activation that caused him issues. That plus not having a female-to-male setting prepared, leading him to rush out in a panic and buy girl clothes. Given the distinct possibility of having to spend an extended period of time as a female, the inventor suddenly felt he needed a lot more than the ratty lab coat that had constituted his entire wardrobe up until now. That plus the black thong he’d kept as a ‘souvenir’ after a private encounter with a certain raccoon mama. He sure didn’t expect to ever be wearing it himself, but it was better than running the streets with no bottom coverage at all.

Determined to milk this experience for everything he can, the fox holds the catgirl tight and growls into her squishy ass. A chill goes up the kitty’s spine as she feels the employee pulling down her thong, then extending his tongue to lap at the tight set of lips between her thighs...

EEEEEEEGH!

The cat makes a noise louder and higher than any she has made in her life as she is violated in a way she never thought possible. She violently kicks out a leg which slams against the wall in front of her and sends her tumbling backward onto the little fox. He lets out a surprised meep as her ass engulfs his face- then his entire head. With nothing to support herself, she falls onto him with the entire weight of her body, enough to send his muzzle spearing straight into her tailhole and beyond. The catgirl lets out a different kind of cry as her momentum comes to a stop and her rump is stuffed full of a lumpy, furry object.

“Aaaaooooh… Oh, no…”

Her tailhole is surprisingly eager to accept him, having allowed him to slide in all the way to his shoulders! The cat glances down in dismay at the bulge that has appeared in her midsection from the fox lodged up her ass. Despite her overwhelming embarrassment and apprehension, her body sends her unsettlingly positive feedback at this turn of events. The feline lets out a sigh and, experimentally sitting back a farther, sinks a couple inches lower on the fox’s torso.

“Screw it. You were asking for it.”

With that she lets all her weight onto the smaller vulpine, who squirms slightly in response. If she’s going to shove a random stranger up her rump in public, might as well get it over with and try not to get caught in the act. That would be the last thing she needs to top off this wonderful day.

On the positive side, I’ve never tried using my ass before. This is disturbingly easy. The cat has managed to sink all the way to the poor fox’s rear, and her cushy cheeks now contact the carpeted floor of the dressing room. That ‘poor’ fox doesn’t seem to be too distressed, at least, only wiggling gently as he’s rapidly pushed up into her depths. Will he go all the way up to my stomach and get digested? That’d be something...

The inventor has added a few meals to her figure in the past, as evidenced by her unnaturally large and bubbly ass cheeks, which remained unchanged in her transition from male to female. Oddly enough, her body somehow found enough mass to make her boobs round and juicy as well, a fact that caused her equal amounts embarrassment and arousal as she desperately tried to hide their bouncing underneath her lab coat on the way here.

The cat eyes the bottom half of her passenger, squished between her rump and the ground, and lets out an exasperated sigh. What am I even going to do with him? I kinda have to digest him now, but how am I going to sneak him out of a public store?

The feline gathers herself and starts to stand up with a groan, the fox’s legs still dangling from her rump. Well, I'm a chick now. For some inordinate amount of time. Might as well start playing the part. Gonna need a name besides Bill… Jill? Eh, that’ll work.

“Ugh, screw it all. Let's go little guy. You’re coming with miss Jill Katt.” The kitty abruptly straightens her back and clenches her cheeks, squeezing the fox’s knees and calves up into her tailhole with an audible shlrrp.

“Ummff… lord that feels good.” Despite an enticing tingling feeling between her legs, the feline manages to stay focused on the task at hand: getting out of here. There's only one way to exit the store, and that's through the front door. Thankfully it's the middle of the day so the place is almost empty, and the fox was the only employee she saw when she came in.

Yup, no other option. Gonna have to make a run for it. I am sooo screwed.

Jill glances left and right out of the dressing room; no one in sight. It must be lunchtime or something. Great. Time to leave. She dashes out and, while passing by shelves of apparel on either side, suddenly recalls why she came here in the first place. Eh, might as well do some shoplifting since I'm already kidnapping. She snatches a pair of jeans off the closest shelf and scrambles to put it on while still running, hopping awkwardly from leg to leg until she manages to pull it up to her thighs. She also grabs a random T-shirt and throws it on over top of her skimpy lab coat. Good, now my boobs and ass aren't- huh?

The hurried feline meets some resistance as she attempts to cover her bared cheeks with the jeans. As she passes by the register, she glances back to see the fox employee’s foot-paws are still protruding from her crack! His frizzled tail has been trailing behind her this whole time!

Fuck fuck fuck, I thought I had him in all the way! Get in there you perv, I need to go outside! She gives a hard clench and manages to suck his paws between her ass cheeks, sliding the pants over top. However the fox’s tail is still exposed, slipping deeper inch by inch, gradually sucked down into her jeans.

This won't seem odd at all! A lady with a giant belly and two tails running down the street? Everything's going to be fine! Hahahahaha!

---

There is a loud crash, followed by a cacophony of clinks and clangs as the belly-burdened cat enters her lab.

Dammit, I knew that shelf was too close to the door for fat people to get in.

Jill swiftly shuts the door behind her and locks it. She leans back against it as if barring someone's entrance, panting heavily.

“Haah… haah… whew… it's a good thing it was only… a couple blocks… oof…”

The catgirl's belly growls as the lumps of its occupant shift and stir. The last few inches of his tail disappear into her jeans with a fwip and quickly find their way into her tailhole.

“You wanted my ass so bad? Congratulations, now you're gonna be it.” His motions are soft and rhythmic as he moves up through her guts, and Jill swears she can hear him moaning lewdly within her.

“Well, I guess you're fine with this then? Hopefully you won't mind bouncing on a dude’s butt. ...Eventually.”

On that note, I better get that thing working.


---


Huff… huff…

The cat lady bends over, goggles on and a blowtorch in hand, melding together metal pieces to form a circuit box. Alright, once it's wired in this thing should allow me to switch the settings on the machine. Now it's just a matter of getting the damn thing working again…

Jill wipes her forehead with her arm to clear off the copious sweat. God, it's hot in here and these clothes aren't getting any looser.

The catgirl’s flabby potbelly lets out a gurgly groan as it's pressed against the rim of the table she's leaning on. The horny foxboy has long since turned to mush, processed by the cat’s efficient digestive system as she goes about her work. All that bulk that used to occupy her midsection hasn't gone to waste, though.

Jill’s plump tits sag completely onto the table, having grown full and heavy with milky goodness, courtesy of the fox flowing through her guts. Her now undersized shirt struggles to contain them, the fabric stretched thin across her nipples and soaked in sweat. Watching and feeling her boobs inflate has gotten the cat hot between her legs, although she's managed to keep herself occupied with her work. It doesn't help that her jeans have also become tight like a vice thanks to the fox-fat being packed into her ass and thighs. She doesn't dare try to inspect the damage, lest she become even more distracted, but she can feel the taut fabric gripping every inch of her curves, chafing tightly with each tiny shift of her hips.

It's a shame she didn't have the foresight to get clothes several sizes larger than what fit her at the time. I can't wait to take this stuff off and jack off. Or whatever the lady equivalent of that is.

The cat sighs and stands up to stretch, being greeted by a painful pressure across her ass cheeks as the jeans refuse to stretch to accommodate her. She winces and leans forward again, only for the tightness to suddenly go slack.

Riiiiip.

“Oh, fuck,” the catgirl curses. Was that the seam? She reaches to check the back of her pants, only for her fingers to enter a newly-opened hole and dig straight into her compressed, doughy assfat.

Oh no. Nonono, these jeans have to last until I-

Creeeak…

Jill tenses up, which unfortunately causes the fabric surrounding her thick legs to reach its breaking point and spontaneously tear open in several places, revealing patches of catgirl leg to the outside world. Her still-flabby and sagging gut lets out a lewd groan as it drains more nutrients down into her greedy bowels.

“Stooop! You little degenerate, quit making me fatter!” It's indeed rather impressive how much the diminutive fox has expanded her assets, even with a few liters of sludge still sloshing in her belly. “You're ruining my wardrobe!”

Streeetch.
Creeak…
Riiip!

A few more tears open up on the catgirl’s jeans until the garment is thoroughly shredded, no longer cohesive enough to provide decent coverage or even stay wrapped around her legs. The waistline snaps and the tattered denim slowly slides down, revealing her thickly padded legs. To top it all off, her shirt rips open horizontally and her fat tits flop out in all their jiggly grandeur. Her midsection lets out a groan of relief as it's finally allowed to drain completely into her lower guts, unconstrained from the oppressive fabric. Her potbelly shrinks to flatness within seconds, leaving behind only a bit of pudgy squish on her exposed abdomen.

“Uuuuuungh… Oh, that felt good…”

The now-liberated feline leans back onto the table, gazing down in frustration at her excessively wide and curvy body. “Well shit. I can safely say nothing's going to fit now. How did that tiny fox have so many calories on him? Was it taking him up the ass that did it? I don't even know anymore…”

Ironically, the inventor’s trip to the clothing shop left her with the exact same garb she was wearing in the first place: no pants and a shirt that doesn't do anything to hide her bust. Might as well just put the lab coat back on. At least I managed to keep Faith’s thong-

Snap. A black strand whips out from her left thigh and the now-useless piece of underwear spins in circles around her leg until it reaches the ground, defeated.

“Welp, time to get this stupid machine working so I'm not a naked chick tomorrow. Gotta get back to being a dude so I can… Er, wait...” On second thought, I’m not going to be any less naked as a male. Why does it matter all that much? These jugs are gonna get in the way of doing stuff, sure, but it’s mostly just my being uncomfortable with this...

The cat cocks an eyebrow as she admires her assets. That hot, itchy feeling between her legs isn't going to let up anytime soon.

I guess it… wouldn't be terrible to be stuck like this for a while.