"... Sasha?"
"Yes?"
"What are these?"
Katie found herself peering down at a small metal tray bearing not the usual test tubes filled with various prototype potions for testing, but three small mushrooms. Rather, what looked like mushrooms; these were very small and cartoonishly shaped, like they were from a video game. Just three in a row smelling faintly sweet, almost like marzipan.
"These... are part of my new design," the slender colt answered meekly. Being one of the lab assistants at Kei Corp, he was dressed just like his boss was: white lab coat with nothing on underneath and his flowing mane tied back in a bun. "I'm calling them 'edibles' for the time being, synthisized potions in food form to make consumption easier."
"Edible potions?" Katie echoed, a slow smile spreading on the bunny's muzzle. "That's pretty ingenious. How did you manage to form a single potion into a cute little mushroom?"
Sasha hesitated this time. "I, um... I didn't, actually. Use a single potion, I mean. To achieve a solid form I needed to test different combinations. One or two couldn't hold any stable shape so it takes a base minimum of three to make what you see there. The more variety the better but I'm not sure how this method will affect their properties."
Katie stood as tall as she could, all five feet, and said proudly, "Then that's what we're going to find out!" In a flash the labcoat was off and the pastel blue bunny stood nude in her female form, her cute bunny cunny in plain view for all to see. A moment's silence passed before she asked, "Uh, where's Keiko gotten to?"
"Right here!" came the familiar girly squeak of the skunk boi, only both Katie and Sasha were staring at the short little zebra boi that clip-clopped his way into the lab. "... what?"
"Keiko, change back, please. We've got work to do."
With an embaressed giggle, the slender zebra snapped a quick salure before reaching into the pocket of his own lab coat and pulled free a vial half-full of a teal liquid. He quickly down the contents and within seconds of shivering there stood not a girlish zebra boi but a girlish skunk boi with a super fluffy tail. Keiko paused and sniffed the air as he approached, spying the little candy mushrooms on the tray.
"Oooh, cute snack," he gushed and snatched one up at once. "Mine! <3"
"Wait!" both Katie and Sasha cried as Keiko placed the tiny treat on his tounge and swallowed it whole. For a moment there was a long pause, bunny and colt staring with shock and apprehension at the rightfully confused skunk.
"What's wrong?"
Katie wasted no time. "Sasha! What compounds went into that edible?!"
Sasha was already working diligently on his company-issue tablet, scrolling and tapping until he came to the answers he needed. "Uh... um, they're all triple mixes, so that one was..." he trailed off as he tapped a few more times while Keiko seemed to sway on his little thin legs. "Oh dear..."
"What?!" Katie repeated exhasperated and froze when two surprisingly strong paws gripped her thin shoulders.
Sasha trembled, looking up at something over Katie's head. "A-A transformation cocktail of stallion and wolf," he whimpered just before Katie felt those powerful hands pull her away into the adjoining room.
Set apart from the lab and seperated by only a portion of wall was the testing 'bedroom' as it was named. Mostly due to the fact that the wall mostly concealed a massive, reinforced king-sized bed with rubber sheets for this very purpose: testing. Katie was tossed and pinned down on it before she could react and got a good glimpse of what Keiko had become. Looming over Katie was not the adorable little skunk boi but a towering stallion with a solid black coat and a white tuft of a tail that looked more canine than equine. He was huge, muscular and certainly hung. A massive, intimidating red cock pulsed at Katie and she was stunned to see that this horse cock was also sporting a... a knot? A horse cock with a thick canine knot at the base; Sasha had created something amazing, after all.
But katie was afraid of the look in Keiko's eyes, the primal hunger in them. Would she be able to take him? Dare she try not to?
"S-Sasha!" katie cried and saw the colt peek around the corner. "My desk, top left drawer! Get me the bottle- Ah! ...th-the one labeled 'Big Boys'... quick! Aaah!" the gasp came as Keiko did something she hadn't expected and leaned down, spreading Katie's legs wide so his broad muzzle could clamp down softly over Katie's crotch. "N-No, wait, that's really sensiti-aaah! Haahh!"
Katie felt like her body would melt. Keiko's tongue was long like a horse's but wide and flat like a canine's, lapping at her sensitive pussy hungrily. Keiko was quite horny but still had the skunk's own oral fixations, buying Sasha time to get the potions Katie requested. Swapping genders at the last minute wouldn't work now, Keiko was working hard on opening up Katie with his tongue alone and was very good at it. So much so that honestly, Katie didn't want him to stop.
"Bottoms up," Sasha whispered and carefully poured the secret vial into the bunny's panting mouth. She sputtered only slightly and swallowed the mixture down as the colt quickly and quietly made his escape before the sex-crazed Keiko spotted him too. The effect was immediate and katie felt the familiar tingling in her abdomen as her own secret cocktail went into effect just as Keiko was pulling his whole tongue back out of Katie's cunny for the last time. There was a long, wet slurp as his hot, equine lips pulled from her crotch, exposing Katie's soaking wet pussy. She was quite open now and incredibly overstimulated by the attention, so much so that her mind struggled to keep in control of her body. A warm haze of arousal threatened to overtake her and without even realizing it she had already started to spread her legs as wide as she could.
"W-Wannit..." she whimpered pitifully, way too horny to think anymore. Keiko's tongue-action was amazing, Katie couldn't bear the thought of going without cock. She needed it. Badly.
He gave her what she wanted. In one thrust Keiko stuffed himself intoKatie's pussy up to the knot. Keiko let out a low groan of satisfaction while Katie's back arched and she squealed as a mind-shatering orgasm was forced out of her from that one thrust alone. Sasha was hard at work recording this with his tablet, one hand keeping the device steady while the other stroked his own equine member (and trying not to think about how the wolf/horse's was bigger than his).
"M-More...!" Katie cried weakly and Keiko started a steady rhythem, working almost his whole length in and out of the small bunny, the bulge in Katie's tummy astounding to see, the knot bumping against the tight seal of her pussy. Words failed the bunny and soon Katie was reduced to a squealing, trembling cocksleeve being used by the powerhouse that was now Keiko.
"N-No... t-too big..." Katie whimpered after a time as Keiko was working hard now to push his thick red knot into Katie. The stallion/wolf wanted to knot the bunny and fill her with hot cum but she was still so small and tight even after all that hard humping.
"Nghrr..." the beast grumbled and gave one last might thrust and popping the knot inside. Katie came so hard right then that she fainted right away, limp as her tummy swelled. Keiko pumped load after load after load into the small bunny, making her look a full nine months pregnant all over again before slumping to the side, idly licking Katie's little pink nose until she awoke again. By that time the massive beast that was Keiko was fast asleep and slowly shrinking in size.
"Oh, thank goodness," Sasha sighed, licking his own cum off his busy hand where Katie couldn't see him. "These were made as a limited release for testing, just enough for a single good orgasm. I didn't expect a reaction like that, though.."
There was an audible 'pop' as the knot popped free as Keiko's transformation reverse, the knotted horse cock fading from existence and letting a torret of cum gush from her well-unsed pussy, her tummy rapidly shrinking until it was perfectly flat again and the bed was a mess. Katie couldn't move for a good while, long after the last of the excessive seed poured from her.
"Um, boss?" Sasha called softly as Keiko curled up in a very satisfied-looking ball of girly skunk boi. "Anyone home?"
"... yes," came the tired response from the bed.
"You okay? You're kinda lying in a huge puddle of semen, you know."
"I know. I like it. <3"
There was a moment of silence before Sasha spoke again, trying to hide his returning erection beneath the labcoat. "Uh, why didn't you absorb his cum? You did with ours during the interview, hell, you acted like it was like drinking from the hose."
Katie giggled weakly, still immobile. "My body can but my pussy's different. It's not meant to absorb like that, you know. Luckily that tonic you got me keep me from getting preggers."
"What was that, by the way?"
"Oh, you know. A little contraceptive, a tiny sprinkle of experimental Bimbo transformation and a little prototype I made for 'elastcity'. See?" Katie finally lifted one paw and spread her pussy for Sasha to see. "Nice and tight again. <3"
"Wait... elasticity and, what was that other one? Bimbo?" Sasha looked both confused and horny, not even trying to hide his boner as it parted the labcoat. "What kind of potions are those for?"
This brought Katie to think a moment after making and effort to sit up in the cummy mess. "Hmm, allegedly they were a side-project, a request from another company that was hoping to merge into Kei Corp. Last I heard, they went bankrupt and disbanded so I was left with the recipes and a few prototype potions. I made the 'Big-Boys' mixture as a sort of 'in-case-of-emergency', like the sudden surprising transformation we just had."
"Oh..." Another long silence filled the testing area until Katie spoke again, batting her lovely green eyes at the colt.
"Sasha?"
"Y-Yes?"
"Can you add potions to edibles already made?"
THe colt pondered a moment and nodded. "Yes, I believe I can."
Katie smirked as she shakily got onto her knees. "I'm going to take my lunch break and drink every last drop of this lovely mess, then take a shower," she announced. "After I get out I expect to have those remaining two given the contraceptive mixture as well and packaged for transit."
"Um, are they being delivered?"
Katie giggled weakly. "No, no. They're coming home with me, I plan to make full use of those two with my mate since Keiko's out cold for a while and you have the data to compile."
Sasha's erection waned a little, still parting his labcoat. "But... but what'll I do with...?"
"Oh, you have my permission to do what you please with Keiko. I'm giving him on-site punishment for being selfish with the edibles. He's to be your personal toy tonight in the lab. Use him as a cocksock, warmer, tie him up and have him suck that cute horsecock of yours, anything. But only for tonight, okay?"
Sasha's was almost twice as hard at hearing those words.
"Good. I'll give you the data on those other two tomorrow. <3" With that Katie leaned down and pressed her muzzle eagerly into the puddle on the rubber-sheeted bed and drank deeply of Keiko's yummy cum.