The TF League Team known as the Toy Tinkerers sat around their kitchen table. A letter describing next month's challenge race sat between them, giving them at least a little time to think about it. Beside it were a pair of empty boxes, and the fancy looking air pumps they contained.

Grace looked the least concerned out of all of them, and drummed her fingers on the page. She was clearly tiring of her friends' hesitation. "Why are we still debating this? The choice is obvious, inflate Brook and I to be the big river tubes, then Emi and Trinity steer us downstream."

Brook rolled her eyes and exhaled. "Are you sure? It's kinda boring just floating along."

"And that's perfect for you Brook!" Emi countered, breathing a little quicker than she should have been. It didn't take much for the others to realize the prospect of lounging in a Grace tube had her excited. "Besides, with my prediction skills and Trinity's gaming ability, we're the best options to drive."

Trinity stood and slammed the table, nodding. "Yeah! I don't want you forgetting to push me around a sharp rock because you took a nap inside me!"

Grace stifled a giggle while Brook sighed.

Emi continued. "Besides, it's going to be hot out there. We don't want Trinity melting in the sun and dropping Brook in the...brook. Once it gets too hot, we want Brook's sturdy quickly recovering body in the water to carry a puddle of Trinity like a bucket down stream."

"HEEEEEY!"

Trinity immediately tried to bop Emi's head into her shirt, hoping she was expand too fast and produce a swarm of goth girl cubes, but Brook had a firm grip on her hair.

Satisfied she had a grip, Brook turned back to her team mates. "Okay, you have a point. Just remember the goal is to reach the end though, NOT to deflate Grace before it's over."

Emi and Grace stole a quick look at each other, then instantly got defensive.

"What? Noooo we wouldn't do that."
"Yeah nooo we're definitely reaching the end together."
"Yeah no forcing all the air out of Grace until the end."
"Yes. Emi has a very precise process for working the air out of me gently, and how to keep it in the right places until I'm ready,"
"Hey wait a minute"
"...so I can blow up again right in her-OOOF!"

*SQUIIIIIIIISH*

Grace's face squished fast under Emi's butt, pancaking like dough against her shoulders. Her twin tails flew up around Emi while that ass squooshed her more, eventually forcing mass into Grace's sizable boobs. Emi blushed feeling her butt press against them, but continued her journey to Grace Pancakes, reducing Grace's unstable chest to chewing gum and forcing her skirt to flare out as it flattened. Everyone had a quick view of Grace's baker butt until the now chubby peach pillars of her legs collapsed, leaving a messy red and white pancake under Emi's denim skirt.

Brook and Trinity stood dumbfounded. Trinity leaned over and whispered. "I didn't know she could move that fast."

Emi stood up next to her new favorite red headed floppy rug. She adjusted her skirt, dusted it off, then smiled back at the others. "Yes. It's very precise and-"

*VVVVVVVVVVVVV*

Grace sprung up as a round accordion, making enough terrible noise it threatened to shatter her friends. She bobbed back and forth with a blushing grin and a dreamy look on her face, as if (in fact because) getting squished by Emi's rear end was one of her favorite transformations.

"Oooooh I love that! But Emi dear, don't interrupt me while I'm describing how good you are handling my-EEEP!"

*KA-POW*
*SPLAAAAAAAAAAT*

Emi lowered her leg, having delivered a crushing kick to her former favorite accordion. Grace wobbled through the air clear across the room, splattering against the wall at ludicrous speed. The red head's squished against the wall, and her bellows body crushed together like clay in ridiculous fashion. Her body exploded into a mess of Grace Goo, tons of gets and whites spreading like a squashed bug, but with colors slowly resolving into features vaguely resembling a human.

When all was done, Emi's girlfriend was spread across the wall with wildly uneven twin ponytails gelled against the rest of her excuse for a body, and a stunned goofy look on her stupefied face.

Emi smiled back at the others. "As I was saying, the patent is pending."

Brook smiled a knowing grin. "Okay, okay. I'll skip the part where I wonder why you two get to be together while I'm with miss melts in the sun in spring. Go and practice blowing her up with the sample pumps, I'll let Trinity take her rage out on me."

Brook picked up Trinity by the back of her jacket, who started clawing in the air at her. Brook grabbed one of the two pumps, and walked into the other room. "Come on you. Pop me, I dare you."

"What, you think I can't make short work of you before getting back to miss thinks I melt too mu-"

*CLICK*

The closing door silenced Trinity for the moment.

Emi waited a moment, cautiously reaching for the pump. Things remained quiet, so she stepped towards Grace, still clearly dizzy in her utterly splattered shape. "Well then hon, looks like it's just you and me and-"

*BOOOOOM*

The house shook. Emi turned towards the door Brook and Trinity walked through, color draining from her face.

*CLICK*CREEEEAK*

A deranged Trinity stood at the threshold, surrounded by a flurry of yellow and grey Brook confetti. "She asked for it, she got it. And now it's your turn to-"

"Nope!"
*SHLLLLLRRRRRP*

Brook's remains flew together, forming an undulating orb of toony goo in the air that quickly squished and shlurped into her regular curvy shape. "You have to do A LOT better than a pin prick with super inflated me dummy."

"NO LET ME AT HER I-"

*CLICK*
*KER-LOCK*

Emi saw the key slide out from under the door, Brook signaling that Trinity was locked in with her for a while, and trinity wasn't the type to squish herself under a door willingly. "But wait...when did that door get a lock on that side...never mind."

She turned back to the red head on the wall, slowly regaining her faculties and shlurping into a more recognizable flattened form. "Are you ready to by my balloon?"

Grace rolled her flat eyes, giving a warm smile of anticipation. "Ready? Dear, I'm almost insulted I'm still flat."

Emi rolled her eyes and spun the pump's hose like a lasso and failing to sound menacing. "Quiet you. You're about to be my pool toy."

*THUNK*

Grace looked down at the hose, caught in her six foot cleavage. "I know you like those dear, but for this style of transformation it really helps if you put the hose in my mouth."

Emi rolled her eyes. "Yeah yeah..."

"Also this is much more rugged waters. I'm going to be a big thicc river tube, not some cheap flimsy poo-OOOO"

*THOOOMP*

Once Emi jammed the hose into Grace's flat mouth, she grabbed the pump. Squeaks and hisses filled the air, and she got to work.

Grace's cheeks puffed up as air rushed in. Her face rose off the wall a little, but stopped growing at wrist rest proportions. Her front stretched and reconfigured itself, billowing away from the wall as air passed through. The pressure contributed little towards reinflating her top half, but when the flow hit her hips, things got interesting.

*HIIIIIIISSSSSSSSSSSSS*

Grace moaned softly, eyes drifting down to admire her growing assets. Her silvery skirt shook, growing off the wall like a balloon as air filled it. Her thighs expanded too, rubbery flesh pulsing with of steady hiss of air, getting shinier as they got rubberier. Her legs spread to fill her skirt, huge quads fusing with her clothes to form a singular sack of air in her mid section, pushing her off the wall.

*HIIIIIIIIIIIISSSSSSSSSS*
*BOOP*

The increasingly curvy red head's butt grew large enough to push her off the wall. She fluttered through the air, hips still pushing the boundaries of reason even as the last signs of her splattering shuffled and reformed. As her butt got bigger her legs grew smaller, absorbed into her thick puffy cheeks. She fluttered to the ground, landing with a hollow THUNK, still expanding and inflating and moaning.

Emi licked her lips and kept pumping. "Looking good hon."

*HIIIIIIIIIISSSS*
"Ooooo yeah....this is quite fun dear. Make...me...HUGE!"

Grace reached back, freeing floppy arms to stretch back and squeeze her big balloon butt. She smiled at the rubbery squeaks, idly wondering how long she could draw out deflating from her current size. Her skirt was now four feet tall and full of inflated Grace, legs completely sucked into puffs of flesh, gently shaking as Emi kept pumping.

*HIIIIIIIIIIISSSSSSSSSSSSSS*
*STRRRRRTTTTTCCCCHHHH*

It was time for the air to go elsewhere, but this pump was a special one. Grace tried to move her hands across her body, but found them stuck . "Mmmmm, I guess this thing works as advertised. I guess I should enjoy *CREEEEEEEEEEEEEEAAAK* the experience..."

Graces drooled when hands fused against her rubber rump. Her arms rippled and expanded as air flowed through them, but they stayed around her sides. Her inflating arms stayed in a ring around her, leaving her belly mostly flat and stretching far enough to fill the space inside them.

Grace's mostly flat face smiled as the puffing sensation reached her shoulders, forcing them into the ring her arms were making. "Oooooh yes! Here comes the fun part..."

*HIIIIIIIIIISSSSSSSSSSSSS*
*FWOOOOMP*

Grace's breasts swelled to full size and beyond. They grew into large rubbery orbs, growing larger than the rest of her tube body, leaving two sexy bumps on her front. They grew so fast they sucked in the rest of her front, pulling Grace's head into the balloon toon tube between them. Her bright red hair fused onto the inside of the tube, all except for her twin tails which puffed full from bottom to top into long red balloons.

That left her beat red smiling face front and center between the boob balloons. Grace's transformation from flat poster to river tube, four feet across, was complete

"Mmmm...that felt pretty good deary, but I think I should be in my swimsuit before we try this for real. I want to look good when you make me all wet."

Emi wiped a bead of what she hoped was sweat off her forehead. "Yeah, I guess you're right. I'll have to get you dressed properly then try again."

Grace's face grinned knowingly, almost bobbing up and down in her face's space on the front of the tube. "Alright, but I guess you need to get me inside first. And maybe..."

"Already on it."

*POOMP*POOMP*

Emi reached out with both hands to the tips of Grace's inflated front, releasing conveniently generated air valves on her balloon boobs. Twin torrents of air rushed out her tits, making grace's whole body quiver as she deflated.

"Oooooh that's cheeeaaaattiiiiiing....mmmmmm yeeeeah...."

The red head crumpled to a mess of rubber on the floor, which Emi gladly slung over her shoulder. "Let's just get you undressed quick before Trinity gets any ideas."

* * *

The next day the four ladies drove to the river, leaving one car at the end and taking a second to the start upstream. Once they arrived, dressed in their swim wear, they again let the pumps do their work, inflating Grace and Brook from their normal human shapes and morphing them into huge, voluptuous river tubes.

Once Trinity convinced Emi to stop over-inflating Grace, they carried their tubes to the water, put on their life vests, and set sail. Things were calm for a while, but problems soon grew apparent.

One, the downpour overnight meant the current was a lot stronger than usual, carrying them downstream much faster than expected.

And two, the resulting humidity plus the heat of an especially sunny day, meant they found out Emi was spot on about Trinity's melting point.

"Hurry up Trinity, you and Brook are falling behind us!"

"I'm trying! This weather sucks and-"

*SPLORT*

Another glob of Trinity's hair splatted onto her shoulder, dripping and oozing into the growing puddle of her legs that she sat in. She had the look of a mud monster, a blob with two goopey clay arms, constantly dripping but flowing back together, though the jolts to her Brook-tube weren't helping her. Every rock of the boat, and every bump against the sand, threatened to tip Trinity over into a liquefied mess she would have no hope of reforming  until going home.

"No no no stick together me!"

Emi laughed, taking a moment to rub her Grace-tube's head. "See, I told ya she needed practice."

Grace laughed while Emi got back to paddling. "Maybe, but from what I've seen when I spin around, it's impressive she's holding together at all. What's your secret Trinity? You really do look great!"

Trinity took a breath, closed her eyes, and focused. Her body drew itself up a few inches, but was still a melting mess. Despite this, she had a firm grip on her paddle and kept pushing. "As much as I hate to admit it, I did ask around. Zoe and Scarlett are smarter than they look."

Brook, for her part, snored as she floated along and a huge tube.

Emi kept paddling, looking at the curves ahead of them. "Okay, it's kind of an S bend ahead. Try not to slide around too much Trinity."

Grace added "Just slam into me if you need to dear. And please hold on and squeeze tight."

Trinity rolled her eyes while pushing another glob of her goo back into place. "Yeah yeah you're an item we get it. Just give me some room so I-whoaaaa!"

Trinity's waist slid inside her puddle as she turned. Emi turned in time to see her slam into Brook's impressive pneumatic curves. It was good that Brook's proportions made her tube body especially big, because the contact forced that side of Trinity's mass to sploosh up into her goo boobs and down into her splatter below.

"GAAAAAAH This is so hard to balance!"

The other pair was cackling. "Hah! Just get ready for the next turn!"

Emi slammed against Grace's other side. She was big  with puffy curves, but comparatively only-slightly bumpy compared o Brook. Still, the red and peach tube spun around, letting Grace see Trinity slam into the other side of Brook to even herself out. Her other waist shifted, making mass flow through Trinity like a giant bump through a hose, enlarging her other breast to super ice cream sundae size like the other.

Emi fell over laughing at that. "Oh Trinity, I'm not sure Zoe could mold herself into that figure if she tried!"

Trinity harrumphed, pushing gooey arms into her chest to *SPLORT* restore her melting shape to what passed for "normal" in the heat. She was getting ready to shout something back at her team mates but instead used her paddle to push backwards and slow down.

"Hey girls, you might want to stop ogling me and focus on each other. You might have...a rocky relationship ahead."

Grace, still spinning around, echoed this point to Emi. "She's right dear. I will definitely enjoy this, but you're supposed to keep my assets inflated."

"What the?!"

Emi spun around in time to see the unexpected white water rafting ahead. The high waters and current meant some sharp rocks were exposed on the edge of their turn, and Grace's inflated butt was headed right for them.

Her shoulders slumped in her fishnet suit. "I've made a terrible mistake."

*POINT*
*POP*
*HSSSSSSSSSSSSSSSSSSSSSSSSSS*
"YEEEeeeeeeeeeeeeeeeeeaaaaaaaaaaaaaaaaahhhh...."

A jagged edge sliced a tear into Grace's arm. As someone who deflates herself for fun, she was in love with the sensation of air rushing out of her curvy body. Her painted on arms were doing their best to massage her rubber rump, adding to the sound of her sensual moans and rubber creaking.

"NOOOO! Damn it Grace I need you afloat! I don't want to get smashed on the rocks! Uuuuhhhh..."

Grace was sinking fast, too caught up with getting drained to worry about how gooped up she would get against the rocks downstream.

Emi reached for her life vest's draw string, preparing to pull. "Well, I guess we need to test this equipment too."

"Hey Emi."

"Not now Trinity!"

"I just wanted to let you know I tied your netting to your life vest."

Emi's eyes went wide as she tugged hard, too committed to stop. "Wait you what?! EEEEEP!"

Rather than inflating around Emi, the fishnets in her bathing suit squeezed tight against her skin. Bits of Emi's pale flesh poked through the netting's spaces, and her head and thighs blew up to massive sizes. Emi usually liked what happened next in her own bed, but not in this situation.

*SHWP*SHWP*SHWP*SHWP*SHWP*SHWP*SHWP*

Emi's body gave in, snapping apart into a huge collection of fleshy cubes in her body's space. Some were pink, some were black, all of them the light color of her skin. They hovered for a moment, neatly spaced apart, then tumbled onto Grace. Most only served to shove the deflating red head into the water, and many simply bounced into the river themselves.

"Huh, what's happening?"

Trinity heard Brook wake up through her maniacal laughter and melting sounds. "Oh this is great. I got Emi to cubify herself with her life vest, and if I did it right..."

*HISSSS*
*POOMP*POOMP*POOMP*POOMP*POOMP*POOMP*POOMP*POOMP*

Sure enough, every single cube of Emi puffed up with air. Each was now a ridiculous rounded cube of inflated Emi flesh, scattered in the water around the shell of Grace.

"Yes! Every one of her cubes inflated! Oh man that's adorable!"

Then Trinity felt something. Her puddled body was shifting around too much, and Brook's tube body was rumbling around her.

"So you're telling me you just dunked Emi into the water for a laugh near the white water?"

Trinity spoke cautiously. "...Yes?"

"Alright, I don't need this. I'm out."

"You're wha-HEY!"
*SHLURRRP*

Brook once again proved she was the best at restoration amongst her team. In one flex of her tube body, Brook bounced out of the water, deflated to normal proportions, and let her body unfurl back to human shape in mid air. She landed perfectly on the banks, clad in her usual yellow bikini that arguably contained her curves.

"Ta daaa! How are you in the water Trinity?"

"Blaaaargh get me out of here!"

With nothing holding her together, Trinity's body spilled apart in the water. Now reduced to a bubbling mess of flesh and blue tones, she was struggling to form anything resembling a human shape. Tendrils of gooey girl reached up seeking form, but inevitably the river currents pulled her back in.

Brook laughed to herself. "Serves you right! Just remember, Emi's life vest still worked!"

Trinity's eyes, sliding around her body, focused on the floating peach cubes in the water. A swirl of her body formed another tendril, and made a pulling motion.

Then Trinity collapsed into the water, making a loud *SPLASH*

Brook rolled her eyes and tapped her foot, watching the water bubble where Trinity went completely to goop. "Such melodrama. Come on."

*BLOOOOOP*

A 3 foot wide bubble rose out of the water. Trinity's colors swirled around its surface, mixing and merging until slowly coalescing into something resembling her face. She undulated towards the shore, still a bubbly sphere but giving the impression of trying to swim through the air, desperate to find the land.

And desperate to float further away from Brook. "I guess that worked. Now..."

She pulled out a giant needle. "What did we learn?"

Trinity was clearly willing herself to float away from Brook down the river bank, wobbling as fast as her bubble body could. "That teasing northerners about low melting points is wrong and I'll have my revenge in the winter?"

Brook drew her needle back to strike, but paused. "Huh, you know you're right."

She looked at the river, watching the collection of Emi cubes gather under Grace to hold her up before going downstream with the current.

"I have to give her credit for improvising like that, but I guess she did bring this on herself."

Trinity looked relieved. "Does that mean-ACK!"

*SPLOOOOOOOOOOOOSH*

Trinity exploded into a gooey mess in the sand, reduced to a puddle of ink by the sun and needle.

Brook nodded, then slammed her arm into her bikini's cleavage. She eventually produced a large glass jar and scooped up Trinity.

"Sorry if there's too much sand in there. Just think of it as part of the training. Now let's run after them. The sooner we get them the sooner I can get you inflated for a night practice run."

Brook ran along the creek, while Trinity bubbled with rage. She was going to have a long night.