Alchemist's Collab

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My first comm, written for https://twitter.com/AD_Necro?t=ixxpQ-l1ugVmqiDQgBAPWQ&s=33 ! His oc, Felicia, runs a magical shop, and pays a visit to my fursona (Lily) who also does so. After we trade some supplies, we proceed to test them, not expecting that our different magical styles will have unusual interactions


Felicia purred to herself as she set some potions onto her shelf, before taking one in a particularly sturdy bottle and set it into her bag. The black cat was busy packing a few supplies from her shop into a large satchel, a mix of prepared potions and raw ingredients. The alchemist had recently heard of another magical shop opening up nearby, one that also had a kinky focus; she figured that, while technically business rivals, she should pay them a visit, see if they could talk shop and trade a few tricks.

She stood back, taking a good look around. The dim lighting made it a bit hard for customers sometimes, but things were visible enough, and being a cat meant she could see just fine anyway. The tables were littered with bottles, boxes and reference guides, with a few piled up onto the floor; she'd probably have to get someone to help clean up sometime. Maybe this new friend could help? The customers who'd seen both pointed out how her store was tidier, after all.

Brushing her silver hair away from her face, she looked over herself: a dark blue skirt and deep purple tank top served as her outfit for today, her bags were secured around her waist firmly, and her heterochromatic eyes and pink streak of hair shone bright against her dark fur. Throwing on a few bracelets and a pink choker completed her look, and she set out, closing her shop for the time as she walked over to the new store.

It was a surprisingly short walk; the new store was only a few blocks away. A sign on it advertised it as "Lily's Magic Shop", and as she walked inside she could already tangibly feel the difference between their shops. Lily had set out a lot of things in locked cases, and included couches and a mirror in clear view in the front room. Still, as someone, presumably Lily, stepped out, she could see a messier back that meshed with her own habits.

"Um, are you Lily?" Felicia asked, her tail slowly swinging behind her. The person who stepped out had a plain orange dress, but her physical appearance showed an indeterminate mix of species: a raccoon's tail, feathered wings, a soft collar, horns, and purple fur across most of her body. Her red eyes blinked behind a natural dark mask as she nodded to her guest.

"Hehe, that's me! How about you?"

"Oh, I'm Felicia... I, well, run a potion shop of my own and I figure, maybe we can trade some tricks?"

Lily purred to herself, and Felicia purred back in sympathy. "Of course! Always happy to share my tools, and I'm sure someone who knows this town better than me has some good tips for the local crowd."

The two settled into one of the couches. The two felines were hitting it off pretty well, talking about some of their past misadventures. After a while, Felicia offered her gifts. "These are some of my favorites!", she noted.

"Of course! Here, let me find something to give you in return." The larger, demonic cat blew a teasing kiss, making Felicia blush as she watched Lily open a storage bin. She pulled out a few bottles of her own, and quickly stepped behind to grab some papers. "This is probably a fair trade, right?"

The two giggled a little, Felicia happily setting the new supplies into her satchel. "Maybe, um, we can share our results with each other? Tomorrow night?"

"It's a date!" Lily purred, giggling to herself a little.

--

Felicia purred to herself as she looked over the reference notes Lily had left her. Lily's own demonic magic had helped her with imbuing her products with their power, compared to Felicia relying on her potions near-exclusively. Still, these new supplies would be quite a solid addition to her own work. She giggled in excitement as she added in one of Lily's strength-additives, before dumping a little extra in. Mixing it in with one of her own chest enhancing potions, she watched the colours swirling in the bottle, before giving it a gentle boil to mix the components.

As she waited for it to cook, she looked at some of the other parts she'd been given. One was labeled as "Multiplier", but a small slip led to some loose potion staining the explanation for it to illegibility. Another was said to have a bit of Lily's own essence; evidently she'd made her own species, so turning others into the same would need some help. A few others were simply spare ingredients she had; Felicia already had most of them, but it was still a nice thought.

One odd potion had accidentally had the name part of the label ripped off, but it said that it was safe to consume with any other. It was advised to be taken first and on its own, so she gave it a drink, emptying the whole bottle; but as the water continued to boil, she couldn't tell if there was any change whatsoever as a result. She was a little annoyed at the apparent dud, but tried to shrug it off; she still had plenty of stuff to try, and was getting more than a little eager to test them.

With the potion done brewing, she took it off the burner. A few minutes for it to cool, and one pour into a drinking glass later, and she had herself a new concoction to try. An extra strength potion to make her chest more sensitive. Pulling her top off, she drank the potion in only a few gulps, her soft pawpads already moving to squeeze her chest.

She stepped over to a comfortable lounge chair, stretching out and kneading her chest. She double checked that her healing herbs and reversing potions were nearby, just to be safe. Had to make sure they were in reach, even as she was already blushing and moaning from her soft squeezes.

Her painted claws gently poked at the soft fur, her thumbs rubbing along her nipples. This was quite enjoyable; small tingles went through her whole torso, and she knew it wasn't just the potion's effect. She poked at herself a little, biting her lip as she squeezed. As she did, however, she felt some warm liquid spilling onto her.

She looked down at herself, a little confused. The potion wasn't meant to make her lactate, just increase sensitivity. And yet she could both see and feel the milk pushing out of each nipple, coming faster when she squeezed. A taste test confirmed that it wasn't different to her normal milk, but it was still quite the surprise. A pleasant one, to be sure, but still a surprise.

She leaned back, not bothering trying to keep quiet as she returned to squishing her chest. Her hands were having a harder time fitting around them than before, her breasts slowly but surely expanding in her grasp; another surprise effect, but not unwelcome. One hand simply abandoned her chest, as she began to rub along her belly, working her way to her crotch.

As Felicia's fingers reached her skirt, she quickly pulled the fabric away, not minding the small tears left in the moment. She began to gently rub and tease at herself, carefully working her claws along herself, one finger singling out her clit to rub against. It didn't feel any different than normal, but that was fine by her; her increasingly large chest was already keeping things interesting, milk gently dripping onto her arm and sliding down. She purred, letting out a small yell as she started to cum, her chest helping her along even as she rubbed along herself.

She panted, slowly breathing in and out for a moment to recover, before looking toward the remaining potion bottles. Still leaking milk even when not stimulating herself, she left a small trail on her floor as she stood back up, taking another look at some of the other supplies. Although the label on the multiplier potion was scratched, she could read enough to see that drinking it was safe, and so impulsively took the bottle, opened it, and drank it in quickly, wondering just how this would work.

She pulled the chair a little closer to the table, allowing herself to reach for her work table without sitting up. Her side table soon joined the chair, a little less convenient compared to before but still close enough that if anything went wrong she'd still be able to get to the emergency supplies. Purring and shaking with excitement, she settled into the chair once more, lying down and eagerly running both hands along her chest, feeling them growing even more sensitive with every touch.

And yet, it wasn't enough; the effect was slowing itself down, her tits growth was stopping, they were super sensitive yet still not sensitive enough. Her enlarged chest squished in her grasp, but no new change was happening there beyond her trying harder to make herself cum. She nearly bit her tongue, one hand returning to her slit, dripping all over her thankfully waterproof chair as she began to directly thrust some of her fingers inside. After a second, she realized her tongue wasn't that large before, poking it out of her mouth and watching as it lengthened before her eyes.

She waved it around a little, experimentally; it was a lot bigger than it used to be, longer and thicker. She poked the tip against the tip of her nose, blushing when she felt a pleasant tingle go through it. Normally it wasn't erogenous like this, but with all the stuff she'd drank so far it was likely she'd accidentally upped its sensitivity. Bending her head down, she began to tease at her nipple with it, gently wrapping it around her teat while she used one of her now free hands to grab the bottle again.

With one hand rubbing her clit, she used the free one to tip some of the potion onto her chest. She wanted more; a bigger chest, more sensitive and needy. Milk mixed with the potion, but didn't hinder its effect, as she already felt herself getting even more turned on than before. With a mental shrug and an audible purr, she dumped the leftovers onto her slit directly, figuring she might as well see what'd happen. After a moment to let it soak into her skin, she began to rub at herself once more.

She settled into a pleasant rhythm; her right hand rubbing her right breast, tongue licking her right nipple and occasionally lapping up her tasty milk, and her left hand focusing on her clit, rubbing herself and delving inside. She could feel her clit growing larger, thickening, not developing into anything different but substantially more sensitive, pre and cum pouring out alongside her milk. She let out a content sigh, before her tongue began to feel funny again.

The tip was splitting apart; her tongue was dividing itself. It wasn't painful in any way, but the alien feelings put her on edge a little. It was only now that she realized what the dividing potion must have been meant to do, multiplying the number of body parts. Still, as the split trailed all the way back into her mouth, she simply purred and moaned; the two felt good when she rubbed them against each other, and she could rub the muscles of her abs while holding her tits up with her arm while licking at both nipples at once. The split carried itself down to the base, her mouth adjusting itself to accommodate the two as if they'd both always been there, and she found herself already cumming again, a small puddle forming on the ground beneath the chair.

A strange poking feeling under her arm interrupted her latest afterglow; from the sensitivity and shape, she could tell they were nipples. Unlike her tongue, which had divided itself to form two, she was simply growing a new set of breasts, rapidly inflated, her old set getting pushed up into her view slightly as the new pair forced room for themselves. Already, with her hand down there, she could additionally feel that she was growing a second set of genitals; her existing pair pushed themselves to the side, and as she pushed down her fingers she could feel a new opening forming, and she started to lose herself in pleasure once more as she teased both incredibly sensitive sets.

She struggled for a moment to find a way to split her fingers between the two slits, eventually getting her hand just right to rub both sensitive clits at once. Her tongues gently lapped at her upper nipples, while her hand grabbed onto a lower breast to squish and knead, claws gently pressing into her fur. It was heavenly, far more sensitive than normal for her, and she basked in the feeling as she came again.

Still in the afterglow, she turned over, grabbing the bottle of Lily's essence. She figured she might as well, taking only a small sip before a sudden twitch in her lower chest startled her into dropping the bottle. The sturdy glass held firm, but the drop spilled most of the potion onto the floor, mingling with her milk. Her new tits were starting to drip milk, pouring all over her fur. It'd be a pain to clean up later, but she didn't mind at the moment.

A small bit of deep blue hair fell into her face, which she quickly brushed aside; using a darker bottle as a mirror, she quickly saw a streak of blue matching Lily's forming in her hair. A discomfort was brewing in her shoulders; she leaned up, despite the added weight to her chest, to allow a pair of jet black wings to grow in, small, useless for flight compared to the large ones the original had, but Felicia didn't mind, allowing them the chance to stretch themselves out a little before she settled back into the chair.

Her rest was interrupted when she heard someone step inside the front of the shop, unfortunately. She quickly pulled up a fresh pair of panties, but didn't bother with her chest; between their size, number, and constant leaking she had nothing that could cover them. Looking out into the front, she recognized that Lily had arrived, but not as she was when they met before.

Lily was still, recognizably, a tall, purple furred creature mixing traits of different species. But where before her hair was mostly blue there were now many streaks of silver; her chest was larger, dripping milk behind her. A second set of arms rested below her original pair, and two cocks were visible, pushing out of a shared sheath and with swollen knots. She hadn't bothered to wear clothes at all, panting and blushing when she saw Felicia.

"Oh, hey..." Lily said, stepping forward a little. "So, I think we might have overlooked, oh, the way our magic would interact..."

Felicia purred, motioning for Lily to come into the back.

"Hmm, maybe I should send one of the maids I've hired your way?" The demoness asked, distracted a little by the messy shop.

"L-later... I've been horny nonstop..." Felicia responded, looking sheepish ash she showed Lily the spilled and often empty bottles.

"Oh dear, did you take the whole libido enhancer at once?"

"Is... that what the unlabeled one was...?" Felicia stammered, blushing deeper.

Lily blushed and purred back. "I... that was my fault, should have been more careful which bottles I gave you..."

"It's alright, just... help me with this, please?"

Felicia buried her face into her chest a little, her tail gently poking against Lily's legs.

The demoness nodded, bending down to give a deep kiss to Felicia. Her tongue slid against the smaller cat's two, although the kiss was brief as Lily settled herself on the lounge chair. Seemingly from between her own chest, Lily pulled out another potion bottle, quickly drinking its contents. "In the interest of fairness, I'll enhance my own arousal~" she explained.

Slowly, Felicia climbed on top of Lily, only for her to gently flip Felicia around so she was lying on her back. Lily's four arms each took one of Felicia's breasts, gently kneading and squeezing them, the demoness purring and giggling as the milk ran through her fur.

"Shall I help fill you, dear~?" Lily asked, whispering into Felicia's ear.

"O-of course, just... I don't really wanna be pregnant... you see that bottle?"

Lily nodded, looking at the table and seeing it. Grabbing it in one hand, she used another to open it while the other two kept on toying with Felicia's chest. With a quick drink, she purred and moaned happily. "Alright, let me know when you're ready!"

Felicia purred and nodded, her wings fluttering gently. Lily's own, larger set wrapped around the two, keeping her surrounded by softness while she was teased. "Ok, t-that should be long enough for it to work!"

With that, Lily began to press her cocks against Felicia's slits. The two slid in surprisingly easily, despite pressing a little outward from the lack of space, up until she hit the knots. Felicia blushed and moaned, the knots rubbing against her clit, the tips pressing deeper inside her. Pre began to leak from the cocks, mixing with all of her existing cum still left inside.

With a grunt of exertion, Lily pushed her knots inside, allowing her to return to gentle thrusts, in and out. Her claws gently pressed into Felicia's teats, and she bent one up a little to let her get a taste. In her super horny state, it was too much for Felicia, and she came again. Lily soon followed, her own warm cum suddenly pouring out, slowly mixing itself inside her new friend.

The two of them took a moment to bask in the afterglow. Lily's knots began to deflate slowly, allowing her an easy release so she could turn to see Felicia face to face once more and share in another quick but deep kiss.

"We're gonna be here all night, aren't we?" She asked, looking into her friend's eyes.

"Hah, probably." Felicia responded, before giggling a little. "Same time next week?"

"If I have time, then sure!"