Another day for the Star Fox team meant another success, with Miyu and Fay, the diva duo of the mercenary force, having just finished off a job where they had to shoot down a number of Andross Army stragglers.


With the space system mostly safe, it seemed as though it was mostly routing loyalists and making sure no rogue mercenaries or opportunitsts disturbed the peace.


“Ah, another day another victory!” Fay said cheerily, the white hound feeling pleased with her work. She carefully fixed the ribbon in her hair before taking off and speaking to Miyu over the communication system. “Can’t wait to let the others know we did the team proud.”


“We always do,” Miyu said. The wild cat member of Star Fox was quite pleased with herself also, her eyes gleaming almost as much as her single gold earring. “Seems we’re home clear while we head back to the Great Fox, but there’s some odd radiation on the way back.”


Fay tilted her head. “It’s not dangerous, is it?”


“No, not so far as the sensors can tell...It’s covering all the routes back towards the Great Fox, too.”


“Hmm...We might be better off going around,” Fay mused.


“Well, the Arwings have shielding from background radiation. We should be fine,” Miyu said.


“I suppose so. What’s life without any risk?” asked Fay with amusement in her tone. Giggling, she flew behind Miyu, the two of them cruising back through space.


As they did, they started to fly past the odd zone, their radars going off as the strange rays afflicted their ships. At first, all seemed well, but Miyu realized her ship’s shielding was faltering. “Huh?”


“Something up?” Fay asked.


“The Arwing’s saying the radiation is too intense...It’s starting to seep through!” Miyu said.


“Wh-what?! What do we do?”


“I’m not sure...Turning on the health monitors now.” Miyu pressed a button on the panel, only to start to feel odd. What was more curious was the reading. “Huh…”


“Well? Are you okay? Speak to me!” Fay insisted, worried for her friend.


“It says I’m fine, but it’s also saying my body’s...producing calories?”


“What?” Fay asked.


Miyu was going to respond, when she felt her body tingle. Looking at her furry body, she began to realize her figure was getting bigger...and in addition to that her clothes were getting tighter. Slowly, she became more chubby. “Um...It’s making us fat?”


Fay looked at herself in her own Arwing, seeing her body slowly and subtly grow. “I don’t believe this...”


Miyu was going to reply, but she accidentally cut communications, all before she found herself grunting as her Arwing slowly became more cramped. Even though the spacecraft had been augmented in order to accommodate extra room, it was clear Miyu's body was getting bigger and broader.


She found herself getting more plump, her reinforced belt getting tighter as her body got more expansive. The odd radiation she had been exposed to making her doughier.


Miyu felt herself getting more cozy despite the tightness of her clothes. Among the upgrades Slippy had implemented as a better autopilot. The ship was still on its way to the great fox, but as the feline found herself getting flabbier it became far more cramped in the machine. Part of her wondered if there would even be room for her before she got to the docking bay.


Miyu tried to reach her hand for the radio dial, only to find herself stopped when she felt how tight her gloves were getting. Her pudgy palms becoming all the denser, her gloves starting to rip. The same happened around her wrist before she heard the audible shredding of her glove, her bare hand still wobbling from the sudden explosion of fatty flesh.


The feline pilot could feel a similar tightening at other parts of her body. From her starting to slowly see her belly bulge, making her lavender top ride up over her rolls while her belt struggled from the burgeoning blubber.


Miyu pressed her now free hands to the massive mound that was her gut, breathing hard as her changes continued to manifest. From sounds of her heavy breathing as she grew heavier to the ripping of her clothes, Miyu's increase in weight left her with an odd mixture of feelings.


Shock was one among them, with the widening wildcat wondering what exactly had caused such a change. Surely it wasn't a plan by Andross...was it? Even more oddly though was how nice it felt. Even after several moments of discomfort there were also waves of pure pleasure. She didn't know how to explain it, but there was something satisfying about her growing bigger and softer. The parts of her freed from her attire due to her abundance of adipose felt comfortable. She looked at her furry limbs, seeing the same happen as her arms became more bulky too. From the elbows up the accumulated fat continued to rip and rend her jacket, soon freeing small sections of her grand girth through it.


She grinned when she pressed her fingers into her fattening belly and watched more clothes fall down in tatters, her sizable shape freed from her tight clothes. The same happened with her lower body rapidly as more changes occurred, from her belt bursting to her deep purple pants starting to rip too. THe stitches on the sides were soon opening up, the threads unable to contain her titanic thighs, but well before that was the seat of her pants. With her tail wriggling, she could feel her round, rotund rear shaking as more fat burst through. Her panties, as blue as the scarf around her roll riddled neck, seemed to be the only garment on her lower body that remained.


Patting her belly and feeling it shape, she let out a sigh of relief. Her coat's remains were much more like a vest, yet it fit comfortably on her body while her top was instead struggling to hold back her bigger breasts.


Miyu's bra had long given out as she had grown bigger, her mammaries having steadily grown larger, the sudden outward push having already broken the straps on her bra as it ripped to shreds, letting her tits hang freely. By then it seemed Miyu's growth had slowed down considerably, though it still continued.


Managing to pull herself from her sensory fixation on her larger body, Miyu managed to press the communication button in her Arwing, even though she had accidentally fat fingered a few others.


"Fay? Come in Fay...are you there?"


"Y-yeah, but...ah!" Fay gasped. "This cockpit's getting a little less roomy."


"I know, but we've just got to hope these Arwings get there fast..." Miyu said as she mused over her more ponderous figure.


"As long as our weight doesn't slow them."


Fay, in her own Arwing, was in a similar state to Miyu. Having entered the field second, her weight had started to enhance more slowly. Fay was far more attached to her Arwing, its custom pink trim one of many personalizations she had paid for. It was one of the many things she liked about it, but in that moment the custom chair was far more welcome.


Fay's face had gained quite a bit of girth. Her face getting bigger. The cheeks on the alabaster white furred canine were getting larger and more jiggly by the moment, jowls forming along her jaw. She pressed her hands to her face, feeling her countenance become more corpulent and sighing, growing worried for her appearance.


Her neck fat also pressed against her scarf, making her loosen up the tie on the garment ever so, her bright blue eyes on her growing figure.


Fay's top started to get tighter, with her seeing her deep pink gloves start to rip as her hands got bigger. The same soon happened for the sleeves on her jacket. It was a fast process, faster than she expected, but much like Miyu the sudden waves of pleasantness that coursed through her expanding figure were far too much to deny.


Breathing deep, Fay felt her top get more tight and her upper body expand outward. Her belly and breasts seemed to be where the heaviest concentration of heft was. Her belly continued to flow forward, the tidal wave of tubbiness unable to be stemmed by the meager fabric of her measly top. It took a few seconds for Fay to adjust, her looking down and seeing the zipper slowly come undone all on its own. Her breasts became bigger moment by moment. The lower the zipper went, the more her ample figure showed. It continued where her tummy was soon all the way out. She could hear the loud, notable snap of her belt, with the feeling of relief that came following after. Fay couldn't help but rest her hands on her huge tummy, her black bra barely covering her bountiful breasts.


It was a matter of mere moments before the same happened with her pants. Her hips flared out as her hindquarters grew heavier too. Each of her dense and doughy cheeks taking up more room. Her seat, fortunately, had the modifications to get wider. While Fay had been fairly sure that she would never have to use such a function, it was nice to have and coming in handy. Spreading her legs, Fay watched her flab continue to manifest, her more massive body growing meatier by the moment.


Fay's teal pants became shredded, the avalanche of adipose that was her thighs far too much to be contained. Much like Miyu before her, Fay felt far happier finally being free from her oppressive garments. Part of her was worried due to how her figure continued to expand outward, the bounty of her body's bulk taking up more and more room in her Arwing. Already, the Great Fox was visible in the distance, with the Arwings going as fast as they could with their respective, pudgy passengers.


Fay felt herself grow a little embarrassed as she took in the bigness of her body, realizing that when the others saw her she would be quite a bit larger than they saw her last. "I'm wondering how we're going to explain this one."


"Really? I'm just hoping someone can explain what happened to us," Miyu said, feeling herself grow even girthier.


The closer the duo got to the Great Fox, the slower their Arwings seemed to go, with both Miyu and Fay worrying as their vessels became more cramped and their bodies became more vast. It was starting to become tense as they found themselves having to suck in their bellies and moving their arms inward, just as each Arwings started to enter the docking area. Each of the weighty women wanted to breathe out sighs of relief, but instead they struggled to press the eject buttons as they heard the noise letting them know the chamber had been filled with air and each was safe from the vacuum of space.


As they pressed them, their chairs struggled before finally the glass roofs moved aside and each was pushed outwards and upwards. By a miracle, both women were sent upwards with their seats, a parachute coming out, but doing so pointlessly as each landed on their chairs with a thud, the cushioned seats breaking the fall of each.


The seats broke after the fall, freeing their gargantuan glutes from the armrests as each of them had gotten free of the Arwings. They laid there for a bit, grateful to be free before someone approached.


“Fay? Miyu? Is that the two of you?” asked Krystal, the blue fox coming in only to see the pair of them as blubbery blobs. She gasped, not quite believing that she saw the corpulent cat and doughy dog. “What happened to the two of you?”


“We ran into some odd radiation on the way back. We’re okay, but it made us big,” Fay grumbled.


Krystal blinked, unsure of what to say, and unaware she was exposed to lingering radiation too, which would soon put her in a similar state.