(I commissioned Mothlotep to write this years ago. Dunno what they're doing now.)

“It’s…another hour until the train’s at the station.” Airani Iofifteen checked her phone before stowing it back away. She wasn’t stuck at Cover’s office, no, but the air conditioned interior was far more pleasant than the outside with the unrelenting sun above compounded with the asphalt below. At least she could rely on it to be there in an hour and then leave without issue, unlike the buses back in Jakarta.
But with many of her Japanese Senpais otherwise occupied with streaming in their homes, and the meeting with the rest of the Indonesian branch concluded with most of the other members scurrying off for this and that, Iofi was left alone to her devices. Meandering the busy halls, admiring just how many people and how much work it took for the company to function, she remembered that some of the upper layers were still new as a result of the recent expansion. Perhaps due for a check, given that she hadn’t had a chance to see them yet.
The firm office carpet, not yet given a chance to accumulate dirt and flatten underfoot, gave way partially under her shoes. So new, so empty was this place it was quiet enough for her to hear the chafing of her overalls as her thighs rubbed together with her walk.
“Hm?” Iofi read a sign on the wall.
STUDIO STILL UNDER CONSTRUCTION
“The new studio? Here? Well, don’t mind if I just…take a peak. It was supposed to be gigantic, bigger than one of those double tennis court fields. Slowly pushing open the door, the strong scent of blueberry filled her nose, causing her to gag. This place should smell of sterility and sawdust, not blueberries. Quickly getting used to the overpowering smell, this place was empty. Save for a rotund, inky blue sphere with what appeared to be shimmering cobalt hair running down it’s back.
Iofi cautiously approached this…object of interest. What kind of prop was this shade of blue and demanded a hearty cascade of hair? It was a lovely shade of blue, no doubt. Careful step after careful step, Iofi snuck up on her rotund object of curiosity.
And lightly prodded it, her finger forming a divot that snapped back with a churning noise as she pulled her finger back, causing this thing to jostle from it’s still position, wobbling in place.
“Grrrmmmm…”
It emanated a groaning noise, prompting Iofi to jump back.
“Whosh…thereh…? N-No…”
Iofi stood frozen in shock as she processed the voice, seeing the mop of purple hair twitch left and right. “Moo…na…?” She carefully circled around, seeing the other side of this thing and peering up at the face she now recognized. Mostly. “M-Moona?!”
“Yofi…nnhh~” Moona groaned again. From where she was standing, Iofi couldn’t see Moona’s lips moving beyond the curve of her…her body?
“Moona…” Suddenly, this rush of information was recontextualized now that she realized just what exactly she was looking at. The back and forth wobbles, the slightly flapping hands, the round breasts that stuck out, inflated in their own right from the main spheroid of Moona’s body… “What…What happened?” Iofi asked as she ran a hand along Moona’s curvature, tracing a loop around the cavernous navel along her path.
“Mmrph…Shwas…a pie from…bllmp…” Moona groaned and her body gurgled again, and at once what stitches were left on her popped in near-unison as she started swelling again, “...Fuahna…dohn’t…mesh with me…pleash…~”
“A thing from Fauna…?” Iofi took a few steps back to fully take in what was happening. Moona’s feet slowly vanishing further into her form, her head all but vanishing from her line of sight as Iofi looked up. “Really, you look like you just…hopped out of the front page of Deviantart more than anything else.”
“Nhot…funneh…” Moona grumbled out, Iofi now entirely out of her field of vision.
“Buuuut I guess you would be a lot bigger if that really was the case. Some people draw them huge! Oh-” Iofi looked up to see Moona’s head entirely blocked by blueberry curvature as she gestured a billowing sphere with her hands. “One second…” Iofi circled around to Moona’s back and gave her a push to turn her forward, prompting another churning gurgle from Moona’s spheroid body.
“I shahid…” Moona eyed Iofi as the alien trotted back into her view, any movement at all robbed from her head, “Donh’t mesh with me…”
Meanwhile, Iofi was leaning closer to the divot that Moona’s head was driving deeper before backing off again, “Like I said, huge! Sizes up to the ceiling, and bigger. So much bigger.”
Moona’s body grumbled again. Whether that was her self expressing displeasure at Iofi’s actions or the juice within her churning was anyone’s guess. “Mmnhh…~”
“So…about the noises you’ve been making…so unlike you!~” Iofi giggled as she leaned back closer to Moona’s face, “Especially about something like this…~”
“Ish…nhh…” Moona clenched her eyes shut as another growth spurt hit her, “Ish…ish fine…!~”
“Let me guess…” Iofi braced her hands above Moona’s head, palms lightly pressing into Moona as her fingers pressed down one by one, “Fauna gave you something that you said you should eat alone, you meandered up here because you couldn’t wait, and now…” Iofi pulled her hands back, “you’re…HERE!~” Iofi gave Moona a hearty shove, sending her rolling backward, the juices inside of her churning and roiling and multiplying as she came to a stop.
“Mmhhh…” Moona was entirely disoriented. People were never, ever meant to be spun around like that, the world spinning on every axis at once, nevermind the sensation of one’s skin stretching as gallons of juice billowed you out. “I…oohh…~”
“Now that…” Iofi grunted as she hoisted Moona back into a position that was better for speaking. Well, as good as one could speak when their chin was being increasingly buried and pushed upon, “...was certainly a noise. Did she say it would feel this good?”
“Mm-mm…~” Moona tried to shake her head, but the only other reaction she could muster in her current state was a quickened breath, now made sweet-smelling from the liquid that filled her interior.
“You really seem like you’re having a good time, you know?~” Iofi ran a hand over one of Moona’s stretched nipples to provoke further reaction, and her hand met a stiffened, erect, wet surface. “Hmm?” Glancing at her hand, it was like she simply stuffed it into a barrel of blue pigment. Wiping her hand on the belly of her overalls and checking it again, it was still just as blue as it was seconds ago. Looking at her feet, Moona’s stiff aerola continued to drip-drop blue liquid onto the floor, a pitter-patter pattern dotting the floor’s foundation and Iofi’s shoes. “Making that much, huh?”
Unable to nod at this point, Moona simply whined out an aroused “Mhm…~”
“Well then…” Iofi rolled Moona back slightly and traced a finger around a pert nipple, juice coalesing on her finger before it trailed down her arm, leaving a dark blue line, seeped deep into her skin in it’s wake. “Suppose if I were to just…” Iofi’s heart raced in excitement as she closed in on her tempting thoughts, her open mouth panting hot breath right onto Moona’s leaking nipple for a moment before her lips latched onto it.
At first, she drank slowly, feeling the warm, sticky blueberry juice travel down her throat and seed into her belly, the feeling quickly traveling back up, this time enveloping her neck. “Pahh…hahh…~ Is it…?” Iofi took a step back from Moona to observe herself. A rich blue was spreading out across her arms, reaching all the way to her fingertips and turning her nails a polished sapphire.
“Io…Iofi…~” Moona whined as she rolled back, free of Iofi’s stabilizing grasp as her growth kicked in once more. “Why…nnhh…~”
Brrblllll…
A groan filled the room, this time not from Moona. “Is it happening…?~” Iofi rested her hands on her middle, a darker tide of blue seeping across her body as she felt her belly distend, already pressing against the middle of her overalls as the rest of her torso grew in tandem. “Yes!~ It-!” Iofi couldn’t contain herself at such a fantastical scenario and lept in excitement, the prompt landing of which sloshed about her insides, the sensation making her double over and hold her growing middle. “Oohh, that…that was too much. But…~” Already Iofi had to widen her stance to accommodate, checking out her thighs as they widened out, rending the stitching all along her bottom half to tatters in seconds, “It’s already…nhh…~” Iofi whimpered as she slowly wobbled her hips, feeling the momentum fight against her will, hearing the expanding juice inside of her churn about.
Taking a few, heavy, wobbly steps towards Moona, she set her hands on the full-on blueberry, the sight of their skintones now being the same shade of blue by itself making her pant and smile. “But why, Moona? Be…because…~” As Iofi moved her lips, she could feel her cheeks puff up with juice, which only served to pour more fuel to the fire, “Because I…want to have some fun…too…~”
Moona could barely piece together a fraction of a coherent thought for a rebuttal before Iofi latched her lips back onto her nipples, sending the electric shocks up and around her spherical body. Rolling her eyes so far back Moona swore she could see her brain staining blue as well, the stimulation only seemed to fuel her own growth which in turn spurred more stimulation as there was more flesh for pleasure to arc around upon, more juice inside of her to erratically throw the current this way and that.
Shiff-shiff-bbrbbll-shiff-shiff-bbrbbll-shiff-shiff-bbrbbll…
Meanwhile, Iofi managed to establish a steady rhythm. Each hearty suckle from Moona’s breast granted her a spurt of growth in addition to the runaway reaction happening inside her independently of her actions. Each gulp from Moona forced her feet apart that much more as her was-torso expanded outward, mercilessly stepping upon her thickening legs and arms; first forcing her to forfeit her paltry grip on Moona as her arms became unable to bend at the elbow, and then-
“Mmmphhhaa-!~”
Liftoff.
The curvature of Iofi’s body forced her feet off the ground in a sweep, allowing her rotund body to bounce slightly on the floor. Disturbing every last drop of juice within her and sending ripples all throughout her tightening skin, the tidal wave of ecstasy forced a moan out of Iofi as she was shaken from her trace. “Mhoo…Mhoonah…~” Iofi groaned through swollen lips and bloated cheeks. This was heaven. Every passing second, Iofi could feel her mind awash with blueberry juice, drowning it in pleasure. Who needed to process something as mundane as shame or embarrassment when this sensation bought both of them out? “Shou…mmphh…~” Iofi’s sentence was cutoff as her head vanished farther into the divot.
“S-She’s…” Moona could only think to herself as she looked up to Iofi. Just about all of her vision was filled with her now deep-blue genmate. Every second was another that Iofi’s titanic form threatened to touch the ceiling. No matter just how tall Moona was, how extreme her diameter became, she was resting upright. And yet, as she peered up from the divot her head was driven into, Iofi was laying on her belly and still Iofi’s head towered over her.
“I…I feel…~” Iofi could feel her skin stretch and stretch, every passing moment of exponential growth beginning to outright test her limits, ominous creaking first interspersed with the gurgles of multiplying juice, then entirely overtaking them. “I feel…need… more!~”