“So, it’s the collar that lets you, um,” Kate searched for the right, scientific words, “lets you have gigantic boobs?”

       “Basically, yeah,” Cherry smirked, jumping for effect. Her massive chest rose and fell in slow motion, barely contained by the maid’s dress she was wearing. Black with white frills, the dress might not have been out of place in a fancy hotel; save for paw-print gloves and the kitten-shaped boob window that Kate imagined she could fit her whole head through. It did suit Cherry well, though, right down to her red and white hair done up with a ruffled headband.

       Kate stepped around her, taking in the size of Cherry’s breasts, practically dwarfing the rest of her body. She tried to work out the weight of them, or rather, how much they should weigh, “and it completely negates the weight of them?” Kate continued, regaining some of her composure, reaching out to Cherry, “may I?”

       “Oh, sure,” Cherry replied, blushing a little at the attention, “though it’s more like… the weight is there, it just doesn’t hurt, or break my back. All the fun, none of the hassle.”

       “Why a collar, though?” Kate carefully placed a hand under Cherry’s chest, lifting gently, feeling the full weight of the soft flesh, “wouldn’t a bra make more sense?” She stepped back, trying to figure out how just a tiny collar could achieve so much. 2B Laboratories was mostly in the business of developing their own ways of changing people, but sometimes that meant studying other people’s ways of doing it, even if they looked like magic.

       “Oh, I guess it could…” Cherry thought for a moment, glancing down at the mountain of cleavage before her, blocking out the sight of the rest of her, “but this way I can wear whatever outfit I like, and you’ve got to admit, it looks great,” Cherry said with a wink, showing off with a twirl, breasts and skirt alike spinning out around her, right into a shelf stacked high with Kate’s experimental treatments.

       Her chest bounced harmlessly away, but the damage was done. Books toppled, papers scattered, several glass bottles tipped and rolled, and one glass vial toppled and cracked on the edge. Glittering dust billowed around Cherry, setting on every inch of her, fading into her skin and clothes.  

       “Oh,” was all Kate said, instinct kicking in as she slammed the emergency vent button, though the damage was done. The nanites were in her system, and it wouldn’t take them long to begin their work.

       “What… what is that going to do to me?” Cherry asked, meekly, stepping away from the shelf and anything else that might tumble onto her.

       “I, I don’t know,” Kate stammered, “with your collar, I don’t know what the effects will be…” she reached out for her clipboard, flicking through, “oh, um, right,” clicking a pen, she started writing.

       “Are you taking notes?!” Cherry called out, blushing red with embarrassment, feeling her heart beating faster inside her. Already the nanites had spread through her body, filling every cell, starting to change her from the inside. Her legs felt weak and unsteady beneath her, like they were unable to support her weight, even with the collar working its magic, “I don’t… I don’t feel right.”

       “Deep breaths, this is all fine,” Kate answered, barely looking up from her clipboard.

       “You call this fine?” Cherry squeaked, feet slipping on the floor, stumbling back to try and steady herself against the wall, “I can barely stand!”

       “These nanites are made for some extensive changes, if we interrupt them, you might be stuck halfway, and a lot harder to change back…” Kate scribbled some more notes, glancing at Cherry’s legs, which by now seemed to be deflating beneath her, “best we can do is observe and take notes.”

       “Take notes?” Cherry squeaked again, sliding down the wall, feeling her legs giving way beneath her. They started to crumple and fold under her – somewhat uncomfortably, but at least painlessly – the floor inching closer. She reached behind her, hands searching for something to grab hold of, slipping off the smooth wall until her legs collapsed completely.  Cherry yelped as she slipped the last few inches, landing awkwardly on her butt, frilly skirt billowing on the floor around her, “what… what’s happening?”

       Inside her torso, the nanites continued their word, trimming and removing all material they considered unnecessary, subtly reworking Cherry’s insides to match the new form they were programmed to achieve. Just as her legs had collapsed, her stomach started to pull inwards, vital organs shrunk or tucked away as the changes moved upsides. Breathing became slow and awkward, her heart slowing down, the effect strangely calming despite everything that was happening to her.

       Kate’s office seemed to loom larger around Cherry as her head slipped down, suddenly lurching sideways as her torso folded over, tipping her head back onto her flattened ass. Her massive chest filled her vision, wobbling and swaying, slowly settling onto the floor, still dwarfing the rest of her. Her arms scrabbled out beside her, reaching to try and feel what had happened to the rest of her body, finding only the frills of her skirt beneath her.

       “Please don’t tell me I’m going to be nothing but a pair of boobs,” Cherry pleaded, panic and embarrassment growing, searching for the sight of Kate past the mountain of her chest.

       “Just relax, it’s only temporary,” Kate finally answered, stepping closer, now towering over Cherry. Her voice was calm, like a scientist studying a petri dish, but hardly reassuring, “just a few more moments.”

       Cherry pouted, trying to calm herself, at least until she felt a tugging sensation at her arms, nanites continuing their work, “no, no, no…” she panicked, trying to fight the change, reaching across the floor for anything to grab, anything to resist the pull. Finding nothing, increasingly desperate as her arms continued the draw into themselves, she reached out across her chest, grabbing the straps of her dress.

       “I don’t think this is a good idea–” Kate began, trailing off as her attention focussed on Cherry’s transformation, watching with fascination. Cherry’s arms continued to shrink, tugging her hands towards her face, pulling her chest down, the soft flesh simply bending underneath them. Fingers slipping, breasts straining, her hands finally flipped free, snapping back against her shoulders, the impact flattening them on either side of Cherry’s blushing face.

       “This can’t… this can’t be happening…” Cherry stammered, now little more than a head and breasts laying atop her billowing skirt, framed by her flattened hands. With growing panic, she could feel the changes spreading to her face, her skin tingling across what was left of her body. Even her clothes seemed to be changing, her dress pulling tight across her breasts, only making them push out rounder.

       Where the dress touched her skin, she could feel every strand and thread of cotton crisscrossing her body with minute detail; and worse, it seemed to be spreading. The changes running across her skin like pins and needles, skin turning to fabric, pulling tight across her body, pressing down against her face.

       “Into the last stage now, and so far, no complications,” Kate spoke overhead, her voice sounding more reassuring than it really was. Kate wasn’t panicking, and that was good, right? As Kate knelt for a better look, Cherry realised just how large she seemed to be… Cherry hadn’t just been falling to the floor, she was shrinking…

       “I won’t… let this happen…” Cherry’s voice was faint and strained, finding it more and more difficult to even move her face. The room seemed to be warping around her, the nanites flattening her face down bit by bit. Around her, nanites spun their way through her hair, turning it into a single smooth fabric shape, knitting it together with the skirt under her, only then realising she could feel the floor beneath it, the dress now truly a part of her.

       Her breasts quivered as they changed, the nanites drawing them smaller, neater, more compact. Beneath her fabric skin, soft flesh turned to heavy silicone, shrinking down with the rest of her. A strange tension grew inside them, mounting pressure Cherry hadn’t felt before, suddenly released as her breasts bounced back. They ballooned out above her, lifting her whole body for a moment, falling back to the floor with a slap. The sensation shook her body, vibrations rocking back and forth through her chest. Though Cherry would never admit it, the sensation felt strangely good.

       “Now, that’s interesting…” Kate muttered to herself, leaning in closer, watching as skin once again faded into fabric, breasts collapsing into silicone. Reaching out, Kate prodded a finger deep into Cherry’s firm body, barely noticing her expression changing briefly into one of pleasure.

       For Cherry, the feeling was at once intense and undeniably pleasurable, her shrinking breasts almost impossibly sensitive. She could feel the altered breasts deforming around the finger, the resistance as they pushed back, the way her fabric skin stretched and deformed around them- then, again, her chest suddenly surged free, ballooning out around Cherry, knocking Kate back with surprise.

       “Very interesting,” Kate quickly recovered, reaching a hand out to feel Cherry’s breasts through the boob window, more cautiously this time, “the collar must be working against the nanites.” For a moment, she could feel soft skin and warm flesh beneath, fading into cooler fabric as they shrank back down again, Cherry’s cleavage disappearing as soft flesh merged together.

       The more her breasts shrank, the more intense Cherry’s feelings became, the pleasure threatening to overwhelm her. She could feel Kate’s hand pressing down on her, the warmth of her skin, deforming her transformed body. Her whole body shook and quivered, nanites and collar stuck in a tug-of-war, each trying to shape her chest in their own way. With the feelings growing more intense, the pleasure of the strange transformation harder to deny, Cherry couldn’t help but grin in giddy delight.

       Half-hypnotised by her changing breasts, Cherry didn’t notice the changes reaching her head, creeping over her face. Skin stretched tight, the criss-cross of fabric threads splitting her skin, a soft tingle as it spread. Only when her head started to flatten, nose shrinking first, did she realise what was happening. An invisible weight pressed down on her face, squashing her features flat, merging with her skin as little more than cartoonish outlines. If it kept going, her face would be stuck with that ridiculous grin.

       Cherry tried to fight the changes. Stop smiling, keep her eyes dead ahead, anything to keep her expression neutral. Kate wasn’t making it easy, still gently squashing and massaging Cherry’s breasts, apparently oblivious to the effect it was having on her. With each new sensation, Cherry found herself smiling again, mouth wide, and each time it was harder to pull her expression back. With her cheeks flat, the corners of her smile stretched out, tugging uncomfortably as she tried to close her mouth. Another involuntary grin and her lips pressed flat, even her teeth tingling as the fabric overtook them. By then it was too late to even close her eyes, staring up at her chest, trying to look away as her eyes glazed over…

       Kate paused to look down at Cherry, watching the quaking subside, with Cherry’s breasts finally settling down with the rest of her. They were still gigantic, even by cartoon standards, but small enough to rest a wrist comfortably on the mousepad Cherry had become. Looking over the rest of Cherry, Kate couldn’t help but smirk at the sight of Cherry’s face, transfixed into a state of bliss; eyes rolled back, cheeks blushing, and a goofy grin wide across her face.

       “Looks like you enjoyed yourself in the end,” Kate grinned, not-so-carefully lifting Cherry from the floor, squeezing her gel breasts together.

       Cherry’s whole body shook and flopped around, an alien feeling of weightlessness mingling with the sensations of her body stretching and shaking with each of Kate’s footsteps, carrying Cherry over to her desk.

       “Wouldn’t be a complete test without seeing how you perform as a mousepad…”

       The words seemed to echo through Cherry’s gel body, her other sensations dulled by the change, giving her barely any time to register them before violent shockwaves rocked her body, the impact of being slapped down onto the hard surface of the desk. Fingers carefully kneaded and tugged at her edges, pushing her into a better position. The warmth of friction beneath her as she rubbed against the desk. Then a flash of red light. The cold, hard weight of a mouse pressing down on her face, tugging her skin this way and that as Kate moved it around. The feeling of a warm wrist resting on her chest, nestling in between the rise of her breasts. Gel flesh squashed and stretched, gently cradling the weight of Kate’s arm, but sending an explosion of sensations through Cherry’s body, the pleasure finally more than her mind could handle.

       “Pretty comfy, I think… you make a good mousepad, Cherry,” Kate’s voice was soft, distant, lost amongst the ecstasy Cherry was feeling, “I’ll change you back in a bit, just got to take care of this paperwork…”