"So, Midori's your cock now? Interesting."

Yuugure raised an eyebrow, glancing down at Kuro's crotch as he fidgeted in his seat. Her brother had called her in a panic, babbling about some party and magic and whatever, his voice cracking as he begged her to help. Of course, she couldn't say no, so she stopped by Tulirepo's place and dragged her along to Kuro's house, where they were both standing now.

"Y-Yeah, um, it's a long story. We went to this... nudist party, and, well, got a little frisky with each other. And, um, yeah... Midori ended up becoming part of me."

Tulirepo blushed as Kuro explained how he ended up in his situation, while Yuugure nodded thoughtfully, turning towards Tulirepo.

"Sounds like magic to me. What do you think, Tulirepo?"

"Ah! Um, w-w-well, I guess it could be. I'm not too familiar with, um, absorption, though... I'd need some more experience before I could d-do anything."

Kuro sighed, nodding his head reluctantly as he started to stand up, only to be pushed back down by Yuugure. Tulirepo and Kuro stared at her in confusion as she smirked, looking away nervously and covering their eyes as she started to strip out of her dress.

"Woah, what are you doing?"

"Y-Yuugure? D-Don't do stuff like that without w-warning me!"

Yuugure rolled her eyes at Kuro and Tulirepo's outbursts as her dress pooled around her feet, reaching behind her back and unclasping her bra. Her boobs jiggled as she tossed her bra aside, reaching down to peel her panties away from her pussy and sliding them down her legs. Yuugure kicked her clothes aside, baring her naked body as she knelt before Tulirepo.

"You said you needed experience, right? I'll help."

"W-Well, y-yeah, but... it's dangerous and I'm not familiar with the magic and, um-"

"Might as well start learning now."

"I-I guess. A-Alright, um, get r-ready..."

Tulirepo slowly pulled off her skirt and panties, biting her lip as she exposed her neatly shaven pussy to Kuro and Yuugure. She took a deep breath and channeled her magic, putting her hands on Yuugure's shoulders as they glowed a soft blue. She closed her eyes, gasping as she felt Yuugure's tongue prod her lower lips, her breaths quickening as Yuugure's tongue found its way inside her body. Tulirepo's hands tightened around Yuugure's shoulders as the first few drops of arousal started to leak from her pussy, coating Yuugure's tongue as it brushed against Tulirepo's bumpy walls.

Kuro watched as Yuugure ate out Tulirepo, trying to steady himself as he felt his cock throb in his pants, forming a noticeable lump that he tried to get rid of by shifting his weight around. But that just made his erection even bigger, making it form a tent in his pants as it grew to full size. Meanwhile, Tulirepo was shakily chanting, her ears twitching on her head as Yuugure slurped up her juices, her tongue pushing deep into Tulirepo's pussy as it steadily dripped onto the floor. Yuugure's free hand traveled down to her pussy, prying it open as she indulged herself, her ass shaking as she rubbed her slick folds and lapped at Tulirepo's swollen mound.

Yuugure's tongue gradually stilled as it merged with Tulirepo's pussy, her mouth forming a perfect seal around Tulirepo's labia as the warm, salty, slightly floral taste of Tulirepo's pussy juices flooded her senses. Yuugure could feel the inside of Tulirepo's pussy clench and tremble like they were a part of her, suddenly aware of every single fold and bump that she was starting to merge with. Both girls shuddered as Yuugure moaned, the shared sensation of her warm breath flowing across their pussy sending shivers down their spine and a warm burst of pleasure into their core.

Yuugure's hands blurred around her pussy as she felt herself sinking into Tulirepo's pussy again, moaning one final time as her head was swallowed up and absorbed. Her headless body twitched a few times, her arms clutching her neck as her legs kicked the air, her frantic spasms slowly calming down as her body stilled and began to soften. Kuro watched, unsure of whether he should be scared or aroused as Tulirepo's pussy started to suck up the rest of Yuugure's body, slurping it up like a very weird spaghetti noodle. Yuugure's limbs flopped around as her shoulders were squeezed into Tulirepo's glistening mound, her arms flattening against her torso as they started to get slurped up as well. Yuugure's boobs caught on Tulirepo's lips for a moment, bouncing as they strained against Tulirepo's body for a few moments, ultimately joining her shoulders and arms inside Tulirepo's folds.

Yuugure squirted as her torso slid into Tulirepo's body, her pussy and ass merging with Tulirepo just a few seconds later. Tulirepo shivered, leaning against the wall for support as Yuugure's legs and feet swirled up inside her, moaning as the last of Yuugure's body disappeared. Her hands stopped glowing as she brought a shaky hand down to her pussy, panting as it started to swell and deform, the second part of the spell activating as her carefully trimmed landing strip started to darken.

Two black eyes poked out of Tulirepo's mound, blinking several times as they darted around, scanning the room. They settled on Kuro, twinkling with amusement as he gulped and tried to push down his erection. Yuugure's eyes glazed over as Tulirepo's pussy throbbed, flattening into a horizontal, instead of vertical, slit. Her labia reddened as they morphed into plump lips, rows of teeth forming inside Tulirepo's pussy as Yuugure's tongue slid out of her mouth, licking her lips teasingly as a soft, throaty moan escaped. A lump formed above that mouth, pushing out into a nose as Tulirepo gingerly spread Yuugure's mouth open.

Yuugure teasingly licked Tulirepo's fingers, making her squeal in shock and yank her hand away, shaking it like she had just burned herself. Yuugure giggled, drool leaking out of her mouth as her giggle quickly turned into an aroused huff. Yuugure looked up at Tulirepo, smirking as she saw the faint blush creeping across her cheeks. She ran her tongue across her mouth, causing both of their eyes to flutter as they shared the sensation of someone eating them out.

"Y-Yuugure, w-wait, that f-f-feels... mmmph~"

"It's ok. J-Just for- nnngh -experimental purposes, right?"

"T-This doesn't -aaah! -feel l-like an e-experiment!"

Tulirepo slumped to the ground, her hands desperately trying to stop Yuugure's mouth from moving as every word, every lick, every breath sent a blissful tingle through her entire body. But touching Yuugure just stirred up the fire building up inside Tulirepo, growing it from a few smoldering embers to a blazing wildfire. She weakly crawled toward Kuro, one hand toying with her pussy while the other grabbed Kuro's pants. Kuro yelped and tried to pull away from Tulirepo as she stripped him, but her grip was firm as she reached up and wrapped her fingers around his erection.

"S-Sorry... I-I need to c-check your cock f-for, nnnfff, magical t-traces. I- oooough -promise i-it's not f-for any o-o-other reason."

Tulirepo didn't wait for Kuro to answer, gently sliding her hand across his throbbing, veiny cock as he trembled and tried not to cum. Kuro jolted as he felt Tulirepo's magic seep into him, a bead of pre-cum rolling down his shaft and along her hand as her grip tightened. He held onto his chair, his muscles tightening as every inch of his cock was dutifully inspected by Tulirepo, her touch almost too much for his already sensitive cock to endure. And the way she and Yuugure were moaning didn't help, either. Yuugure's lustful moans and wet slurping drowned out his thoughts, making it almost impossible for him to concentrate on anything besides sex.

"T-Tulirepo, s-slow down, p-please!"

Just as Kuro was about to lose control, Tulirepo mercifully took her hand away, leaving him even hornier than before and aching for release. Kuro groaned as he felt a small squirt of pre-cum come out of his cock, panting heavily as his painfully swollen member slowly softened into a half-chub that throbbed between his legs. Tulirepo had stood back up by this point, her thighs trembling as Yuugure licked her lips and hummed in an attempt to get her attention again. Kuro and Tulirepo stared at each other in a bit of a daze, their brains taking a second to catch up to reality.

"... So? Can you do anything about Midori?"

"Um, well, m-maybe... You said Midori- YUUGURE! S-Stop!"

Tulirepo's knees quivered as she gave her crotch a light slap, earning her a disappointed grumble from Yuugure as she stopped briefly, only to start licking again as Tulirepo clamped a hand over her mouth and slumped to the ground, whining as her tail flicked back and forth.

"Y-You're enjoying this w-way too much!"

"W-What? N-No, you have the wrong idea, I'm just making sure you don't forget I'm here! W-Why would I enjoy s-something like this?"

Yuugure blushed, closing her mouth and sulking as Tulirepo accused her. Kuro watched as Tulirepo and Yuugure argued, the surreal sight of Tulirepo yelling into her crotch making his dick rise to attention again, heating his thighs as he cleared his throat and poked Tulirepo on the shoulder. She stopped mid-sentence, turning back towards him with a mumbled apology.

"Sorry. Your sister's annoying sometimes."

"It's fine, I get it. So..."

"Y-Yeah, Midori. S-She transformed during sex, right?"

"Yeah. Does that change anything?"

"It d-does. We, u-um... need to...y-you know. Do it. J-Just for research though! I-I have to know h-h-how the m-magic works!"

"C-Can't you do it some other way?"

"No! J-Just fuck me and g-get this over with!"

Tulirepo moaned as she pried open Yuugure's mouth, showing Kuro the soft pink flesh inside as well as Yuugure’s tongue, which was softly running over her gums. Yuugure mumbled an incomprehensible invitation, her words garbled by Tulirepo’s fingers and the copious amount of drool leaking out of her. Kuro hesitated for a few seconds, the thought of fucking Tulirepo while his sister was her pussy making him a little nervous, but eventually, the persistent call of his erection was too strong to ignore. With a loud growl, Kuro grabbed Tulirepo’s shoulders, pushing her against the ground.

Tulirepo’s high gasps of pleasure mingled with Yuugure’s sloppy sucking as he thrust into her. Yuugure’s tongue swirled around Kuro’s shaft as he slammed his cock against the soft pink walls of her mouth, her eyes glazed as she felt her lips smack against his base. Drool gushed out of her, along with a muffled moan as she felt Kuro driving himself deeper inside her.

Tulirepo squirmed as Kuro reached for her chest, squeezing and kneading her boobs through her shirt as she locked her legs around his waist, pulling him even closer. Her tongue hung out of her mouth as her body shook, her focus wavering as her mind was relentlessly assaulted by wave after wave of pleasure. Tulirepo bucked her hips as she felt Kuro’s cock kissing the back of Yuugure’s mouth, her eyes fluttering in bliss as the blue glow in her hands dimmed.

Yuugure felt an itch in her throat as Tulirepo lost control of her magic, initially chalking up the feeling to Kuro. But as the itch intensified into a sore throb, she felt her tongue start to shrink, merging with the bottom of her mouth as it took on the same texture as the flesh around it. A soft gurgling sound escaped Yuugure as she tried to get Tulirepo’s attention, but she was too far gone to notice. And Kuro was too busy jamming his dick into her to notice Yuugure’s frantic gargles.

*Dammit, you two! Help me! Tulirepo, you idiot, notice me already!*

Yuugure’s eyes darted around frantically as Kuro and Tulirepo ignored her, trying to make eye contact with them as she peered through Kuro’s bright orange pubes. She whimpered as Tulirepo shuddered and yelled in ecstasy, feeling her magic weaken again as Kuro played with Tulirepo’s tits. Yuugure’s lips fattened up, becoming unusually soft and supple as they stretched upwards, squeezing her mouth into a tight, vertical slit that perfectly wrapped around Kuro’s cock. Yuugure’s drool thickened, a shiny sheen of juices coating her lips as her mouth went numb. Her frantic grunts slowly became wetter and wetter until they were nothing more than soft smacks, and even those faded away until she was completely silent.

*FFFFffffuckk~ My mouth, my- mmmph -my face! No no no no no! T-This is bad! But… But it feels-*

Yuugure’s eyes glazed over as they rolled up, just the whites of her eyes showing as her eyelids began to droop down, trembling as Yuugure tried to fight them. She didn’t want to join Midori in being part of someone’s body, she had better things to do than being Tulirepo’s cunt! And even if she didn’t have any alchemy to practice, she didn’t want to become the pussy of a shut-in like Tulirepo! Yuugure’s mind raced as Kuro’s cock scraped across her sensitive folds, sapping her willpower just like it had sapped Tulirepo’s. Yuugure could feel Tulirepo’s warmth filling her up, making her entire body tingle with need as her vision blurred.

Yuugure nearly lost control of herself as she felt the inside of her mouth clench involuntarily around Kuro’s cock, her palate softening as supple folds pushed their way out of her mouth, lining up with the contour of her labia-like lips as her mouth collapsed on itself. Bumps and ridges lines Yuugure’s new folds as her mouth shrank to the same width as her throat, forming a long, textured tube that ran from Tulirepo’s womb to her pussy. Yuugure was barely recognizable anymore, the only parts of her yet to be absorbed being her eyes and nose. Even her mind was starting to fray, both from the pleasure of being fucked by Kuro and from Tulirepo’s magic no longer protecting her.

*No… C-Can’t let myself… go like… this. Can’t. Can’t. Can’t… I-I…*

Yuugure’s nose drifted down to Tulirepo’s lower lips as it shrank and puffed up into a plump cylinder of nerves, getting sucked between Tulirepo’s labia as it took its place in her folds as her clit. It buzzed with arousal as Tulirepo’s hands hovered over it, instantly stiffening into a solid, throbbing bean as her fingers squeezed it. Yuugure finally closed her eyes as Tulirepo’s fingers sent a spike of orgasmic bliss into her mind, making Yuugure’s already failing mental defenses crumble to nothing, just as Tulirepo’s magic failed.

*I…I- fffuuck, I c-can’t… feels… J-Just wanna… let… go-*

*……*

As Yuugure’s eyes sunk into Tulirepo’s crotch, leaving behind no trace of the woman who had been part of it, Tulirepo leaned back and moaned, completely oblivious to her friend’s disappearance as Kuro’s cock filled her up in all the right places. Her swollen nipples pushed against her bra as her pussy squeezed around Kuro’s cock, his veins sliding across her inner walls. Kuro panted as Tulirepo’s pussy held onto him like a vice, forcing him to work for every inch he tried to pull out of her.

Tulirepo’s sudden tightness caught Kuro off guard, and he felt a familiar straining sensation in his balls as an orgasm began to stir inside him. His hands tightened around Tulirepo’s tits, wrinkling her shirt as her legs pulled him in. Kuro and Tulirepo stared into each other’s eyes, their ears twitching as they felt their bodies shudder in sync.

With a loud cry, they came together. Tulirepo squirted around Kuro’s cock as he pumped her full of clumpy semen, their fluids mixing as Kuro collapsed on top of Tulirepo. Their sweaty bodies rubbed against each other as they brought their lips together for a kiss, Kuro’s cock still firmly buried inside Tulirepo’s cunt as they closed their eyes and rode their orgasmic high. But as their minds cleared, Tulirepo pulled away from Kuro with a wet slurp, wiping her mouth as she shifted into a kneeling position, her legs still trembling too much to stand.

“Oh my g-god, that w-was… s-so much better than u-using my f-f-fingers- FUCK!”

Kuro stared in shock as Tulirepo yelled and grabbed her crotch, confusion filling him as her face paled and she started muttering frantically under her breath. He'd only heard her curse a few times before, and he wondered what caused her to do it this time. Yuugure must've done something really weird to get Tulirepo like this. Kuro crawled next to Tulirepo, flinching as she swatted his arm away.

"W-Woah, Tulirepo! What's going on with you?"

"I'm s-so stupid! L-L-Look!"

Tulirepo sniffed as she spread her legs apart, showing Kuro her shaved pussy... wait, where was Yuugure? Aside from Tulirepo's now black pubes, there was no trace of Yuugure left. Just a tight pussy where Yuugure's face should've been. Kuro looked up at Tulirepo with wide eyes, taking a shaky breath as he felt his heart sink into his stomach. Not again.

"Y-You can fix this, r-right? Y-Yuugure and Midori?"

"Well... um..."

"Shit."