Warning: Lemon!

Rukihime Fusion

Chapter Six
Experimentations

The Next Morning…
Squad 13; Rukia's Room

Rukihime stood in front of the mirror, having swung by Rukia's lieutenant's quarters at her squad to pick up a few items. After working up with a huge hangover, she made her way to the Squad Thirteen barracks to use some of Rukia's sewing materials. The girl had a few outfits that fit her thanks to Rangiku's generosity but she knew she needed more.

After taking the hangover remedy Rangiku had given her when they'd woken up, the girl felt a little better, enough to start trimming some of Rukia's old outfits to make something that could fit a woman with her proportions. Still, part of her wished she could just wear the clothes she'd worn when she was created. No matter what she tried on, only the vest and white pants felt natural to her.

Standing in the mirror wearing her modified shihakusho, Rukihime inspected it and frowned. "Probably going to need to trim this a little more. Still tight around the shoulders…"

As she continued to debate on her wardrobe modifications, however, a tiny hole was cut in her window…

A tiny tube slipped through the hole. Had Rukihime been paying attention, she might have picked up the hissing sound of gas being pumped into her bedroom. It was only when the room became filled with a light purple gas that the Fusion Girl became aware of the danger she was in. But it was too late. The gas's effects hit her quicker than even her attacker anticipated. Becoming drowsy, she feel backwards and landed on her bed, out like a light and snoring softly.

Satisfied after a minute of gassing the room, the mystery stalker turned off the canister of knockout gas and opened the window, not bothering to put on a gas mask since she was immune to most of her master's drugs.

Slipping inside, Nemu Kurotsuchi walked over to Rukihime, snoring loudly thanks to the effects of the gas. Nemu picked her up and carried the unconscious girl out of Rukia's room, sneaking her back to her captain's lab…

Hour later…
Squad Twelve; Mayuri's Private Lab

"Nghh…"

Rukihime's eyes opened up. Everything seemed blurry to her sluggish vision. Looking around, she found herself dangling in the air, her arms stretched out and attached to large metal cuffs that kept her suspended through anti-gravity. The cold metallic air on her body told her that she was naked, her clothes having been removed. "Where…am…I?"

"Oh? Still drowsy? Most subjects would have woken up a long time ago and be completely coherent upon awakening. I suppose your physiology is quite something, being both physical and spiritual."

In Rukihime's dazed vision, she saw a blurry face standing in front of her. The face was distorted, a bizarre visage of black and white crowned with a mane of blue hair. "A…clown?"

"Eh? My goodness, what is going on in that head of yours? Oh well. That's the reason I brought you here, now isn't it?"

Small items were fixed to the naked girl's body. Little by little Rukihime's senses started to push through the fog that obscured her mind. Looking down, she realized that what was being put on her were nodes hooked up to wires, two of them attached to her nipples and one node right at the spot where her womb was. Shaking her head, she looked over to the side of the room and realized just who the "clown" was, standing next to a computer. "M-Mayuri Kurotsuchi!" she gasped.

"Oh, I see you've finally shrugged off the gas. That was longer than expected. Now then, if you could be so kind as to not try to squirm too much? Normally I wouldn't set the power so high but for a new being such as yourself, I believe acquiring proper data demands it. That and you called me a clown and I wouldn't dare let that pass."

The crazed scientist grabbed a large switch and flipped it. The nodes on Rukihime's body lit up with blue electricity, electrifying the fused girl while it sent data back to Mayuri's computer. "KYAAAAAAA!" The girl's body started to spasm in her restraints while she was shocked, Mayuri ignoring her cries while watching as her data popped up on the screen.

"Ahhh! Stooooooop!" Her breasts jiggled as she thrashed in her restraints. She wanted to use a spell or try to summon her zanpakuto, anything to break free, but her thoughts were blasted by Mayuri's experiment.

Just when the girl couldn't take it any longer, Mayuri finally hit the switch and turned off the machine, examining the data that was fed back to his computer. "Hmm…quite remarkable…"

Rukihime slumped forward, dizzy and aching all over. She looked back up with tired eyes. "You…will…regret this…" she mumbled. "My…brother will…"

Mayuri waved his hand dismissively. "Oh please. Do think before you speak. I am well aware that the Head-Captain has forbade me from conducting any experiment on Orihime Inoue. And Byakuya Kuchiki would certainly want my head if I were to try to acquire his sister for my experimentations. However," Mayuri turned around and pointed a finger at the hanging girl. 'You are neither Orihime Inoue nor Rukia Kuchiki and therefore I can experiment on you as much as I like."

The mad scientist walked over to a table next the computer. Rukihime started to shiver with fright when she saw the array of different syringes, each one filled with a different colored liquid in them. "What…what are those?" she asked fearfully, trying once again to break her anti-gravity restraints. "H-Hadō #33: Sōkatsui!" But nothing came out her hand. "What?!

"It appears that your personality suffers from Orihime Inoue's obliviousness." Walking over to her, Mayuri tapped the collar around her neck. "I put a surpressive collar around you in order to block Orihime's Shun Shun Rikka abilities as well as Rukia Kuchiki's Kidō. Now then…" He held up one of the syringes, its container filled with a sickly yellow liquid. "I've quite a lot of drugs to test on you. I've plenty of data on how most subjects would react but I wish to see what a reaction a person of your fused biology will be."

With her neck covered up by the thick collar, Mayuri instead injected the drug right into Rukihime's breast. "Nghhh…" Everything started to go blurry for her again, Mayuri fondling her breasts to help circulate the drug through her system faster. "C-cold…" she said after a minute, her body trembling in her bondage. Her whole body felt like it had been plunked into the middle of the arctic.

"Hmm…quite unique. I gave you the regular dose and yet judging by your reaction, your body seems to be hypersensitive. I suppose that's to be expected considering your unique circumstances. Still, let's continue, shall we?"

For what felt like an eternity Rukihime was subjected to drug after drug, putting the poor girl through the wringer. Mayuri found that the drugs' effects lasted longer despite the dosage being lower than what he usually used due to her dual nature. Still, that didn't keep him from using more and more.

In addition, Rukihime was forced to undergo more of Mayuri's examinations on her body. He had her strapped to a table like a piece of meat while he stuck needles into her head, getting more readings on her brainwaves. Then a gelatinous blob was loosed on her, covering her naked skin and subjecting her to all sorts of sensations, both painful and pleasant. One moment her skin felt like it was burning like lava, the next it felt like she'd frozen over and the next it felt like her veins had been replaced with broken glass. There wasn't an inch of her beautiful body that the mad scientist didn't touch and examine.

By the time Mayuri had removed the needles and stepped away from the table, Rukihime was dazed and exhausted, her body feeling both burning hot and freezing cold.

"Well, this has been most fortuitous. I must admit, Kisuke's boldness has allowed me to find out a great number of things. I'll have to start conducting experiments myself once I have made my own fusion device. Hmm…" Mayuri opened up a cabinet full of vials and pulled out two. One was filled with a milky white liquid while the other was filled with a bright pink fluid. "I've been developing these for the SWA for months. I should see what reaction I get from a being who's both physical and spiritual."

Taking a syringe and filling it with the white fluid, Mayuri went back over to the bound Rukihime and stabbed her tit with the needle. Rukihime cringed as her breasts were injected with the drug, first the left breast and then the right. "What…what is this?" she asked, her chest feeling hot. "It…it feels…" Her toes curled and she arched her back when she felt a pressure suddenly start building inside her tits. "My…my boobs! What did you do to my boobs?!"

"Oh! That was even faster than I was anticipating!" Mayuri grinned with glee. His hands started groping the girl's breasts, kneading them with his cold fingers and forcing the pressure to rush straight to her nipples.

"Ah…ah…." The pressure and the heat in her tits became unbearable. Not only that, but her breasts were still hypersensitive, especially after all the needles. When the pressure erupted, Rukihime's glazed over as she was forced to endure a mini-orgasm, watching with wide hazel eyes as milk shot out of her breasts. "M-Milk?!"

"Why yes. The SWA commissioned a drug that causes lactation. It's not permanent, of course, and more than likely the drug will be out of your system in a few hours. Still, it gives me more than enough time to examine your breastmilk to find any inconsistences."

Rukihime struggled against her restraints in vain over and over again while Mayuri grabbed a pumping device, affixing the suction cups to her large tits and hitting the switch. Again that hot pressure hit her and milk started spraying out of her nipples. Mayuri watched as the pump's tank was filled, noting the large volume Rukihime was letting out; she was producing more milk than any of the previous women he tested the drug on, even Rangiku and Nemu. As she was milked, Rukihime squirmed and moaned, her chest feeling like it was on fire.

Once the tank equipped to the milking machine was full, Mayuri turned it off and removed the suction cups, giving the girl a moment's peace. But that moment came and went when Mayuri grabbed the syringe with the other drug.

Seeing the drug, Rukihime shook her head violently, her eyes pleading for mercy. The girl had been through so much in such a short amount of time that she was on the verge of tears. "N-no more! Please, no more!"

"Oh stop fussing! This is the last one. I'd keep you for as long as I'd like but I've other matters to attend to. Still, I am quite curious as to how you'll react to this."

"What…what is it?"

Mayuri felt no harm in telling her. After all, she wasn't going anywhere. "Oh, it's a combination hallucinogen and aphrodisiac. I imagine that with your body's hypersensitivity you'll have a more intense reaction to it. Of course, you could die from suffering an orgasm so intense that your heart stops," Mayuri added offhandedly. "But then, that's the price for progress."

Before Rukihime could whimper out another plea, Mayuri injected the drug into her arm, Rukihime's veins turning pink as the drug filtered through her bloodstream. "Nghhh…" Everything started to blur in Rukihime's vision. She hadn't even noticed that Mayuri released her from her restraints, her body growing hotter while she writhed on the table as if pure ecstasy was running through her veins.

While the girl writhed in burning pleasure on the table, Mayuri turned his head and barked into the next room, "Nemu! Get in here!"

From the opened doorway came in Mayuri's lieutenant and creation, Nemu Kurotsuchi. The black-haired girl bowed when she walked over to her captain/master. "Master Mayuri. Is it time?"

"Yes. I've injected her with the aphrodisiac hallucinogen. Now that I've gotten enough data for the time being, why don't you test out that toy Lieutenant Matsumoto requested?"

Nodding, Nemu stripped naked in front of her captain. It didn't bother her at all; Mayuri had experimented on her nude more times than she could count. Once she was completely naked the lieutenant walked over to a small drawer on the far side of the room and grabbed the item in question.

Nobody would deny that Nemu Kurotsuchi was a beautiful woman. Her hourglass figure coupled by her large breasts, her wide thighs, smooth belly and her plump ass made her the object of many a man's fantasies. Taking the item she'd taken from the drawer, Nemu pressed it against her groin. The tool was a flesh-colored strap-on dildo. The sex toy had plenty of girth and length to it, almost looking like a real cock. However, the item didn't exactly have straps on it. Instead, when Nemu pressed it against her pussy, the item assimilated itself to Nemu's flesh, giving her a pseudo-cock that looked and felt real.

"Nghhh…" Nemu felt shivers run down her spine as the toy integrated with her loins. Because of her monotone and stoic demeanor, Mayuri took out another aphrodisiac and injected it into Nemu's neck to help get her going, albeit this one was less powerful as the one running through Rukihime and without a hallucinogen. "Ohhhh…" Nemu softly cooed as her body was brought to instant arousal, the faux-cock resting between her legs standing at attention. Eyeing the horny woman on the table, milk dribbling from her plump breasts, Nemu licked her lips and walked over to the fused Rukihime.

Writhing on the table, Rukihime's mind was burning with ecstasy. The cold metal seemed to amplify her hot skin, the aching in her loins unbearable. She reached down to touch herself, her surroundings blurring as her brain caved in to the hallucinogen. "Ah! Ahhh!" Her moans filled the room when a hand touched her breast, squeezing it and earning a spray of milk. A slow realization dawned on her when she found that it was not her hand that was touching her. She opened her hazel eyes and blinked in shock when she saw the person hovering over her. Her vision danced and the person kept changing back and forth between two separate men.

"Ichigo? Renji?" she sputtered. Nothing made sense anymore, too caught up in the hallucinogen and the rest of Mayuri's drugs. The man's face rested on Ichigo's and he smiled, leaning down and giving her a kiss. Instantly all memory of Mayuri's experimentations were banished and the horny girl wrapped her arms around the teen's shoulders, deepening the kiss. Soft hands cradled her face, making her want to gush just from his touch alone. When their lips parted, Rukihime looked into the eyes of Renji Abarai and leaned up to kiss him again.

Mayuri sat back and watched, scribbling more notes on a clipboard. "Hmm…so she sees two people at once? I suppose that makes sense. The hallucinogen is supposed to make the victim see the person they're most attracted to. It makes sense if she's both Rukia Kuchiki and Orihime and Inoue and sees both the men they lust after."

The drugged Rukihime made out with Nemu, never imagining who she was really locking lips with. She didn't even question why "Ichigo's" chest felt a little softer as it rubbed against her milk-filled jugs. The hallucination reached down, cupping Rukihime's breasts before Nemu's lips wrapped around her tit, drinking her milk like a hungry baby.

"Ah! Ahhhhh!" Rukihime dragged her nails across Nemu's back, arching her back while she was milked. She could feel that long appendage between "Renji's" legs and started to grind her wet honeypot against it, desperate to feel it inside of her. Nemu's milking brought the black/orange-haired girl to another hard orgasm. "Nghhhh! Ohhhh!"

Spurred on by the face Rukihime made as she was brought to climax as well as her naked body grinding against hers, the aroused Nemu lifted up one of Rukihime's legs onto her shoulders while she gripped her faux-cock and pressed it against her dripping folds. "Rukihime…" she breathed, her body filled with shivers from the hot wetness of Rukihime's pussy.

"Yes! Fuck me!" pleaded the fused girl, reaching down and stroking the hard length aimed right at her womanhood. "Renji! Fuck me hard! I need it!"

"Renji" grinned at the horny girl and plunged that thick manmeat into her delicate honeypot. For Rukihime, having her pussy filled to the limit by a man's cock was both a familiar and a foreign experience. Rukia had knocked boots with Renji after the two had reacquainted their friendship in the aftermath of her rescue but Orihime was still a virgin, wanting to save herself for Ichigo. She technically got her wish as the figure fucking her like a rabbit's visage twisted into Ichigo.

The sound of skin slapping skin echoed loudly, mixing with Rukihime and Nemu's moans. The drugged lieutenant grasped the girl's breast with a strong grip and continually squeezed it, milk spurting out and dripping all over the girl's naked front. Nemu's face twisted as those tight walls gripped her toy. Because the sex toy was fully integrated with her body, she could feel every inch of the girl's pleasurable walls as if she were a real man. "Yes! Mmmmh!" She bit down on her lower lip and her eyes rolled backwards, overwhelmed by pleasure. "This feels amazing!" Nemu didn't have many enjoyments in life but her father using her as a guinea pig for aphrodisiacs was one of the few she had.

"Ah! Ahhhh!" Rukihime gripped the table's edges as she climaxed, her mind going blank. But whether it was because of her twin personalities loving this or the aphrodisiac corrupting her mind, she craved more. "More! Fuck me more!"

Rukihime was disappointed when her shapeshifting paramour pulled out before the strong hands of "Renji" flipped her over and positioned her on her hands and knees. "Ah!" Hazel eyes widened as Nemu slid back into her, pumping in and out of her from behind. Her juicy ass shook and rippled with each smack of the lieutenant's hips. Those soft hands of Nemu's grabbed Rukihime's breasts again, spraying milk everywhere. When Rukihime's head turned, Nemu met her lips with a sloppy kiss, the pressure in her body starting to build to a crescendo.

Mayuri continued to watch quietly. Being Mayuri Kurotsuchi, the sight didn't arouse him at all. He was more interested in Orihime's reactions to his drug, continuing to jot down notes while watching her orgasm again and again in rapid succession, the table becoming drenched by both her breastmilk and her love juices. "I see… her sexual sensitivity has heightened tenfold due to her physical makeup. I'll have to adjust for later if I use Nemu as a fusion guinea pig." It was more than possible that Rukihime could die from the pleasure overwhelming her heart but to Mayuri that was more than a fair price for his research. "I wonder what will become of her when she expires?" he questioned out loud, though his voice was drowned out by the girls' moaning and fucking. "I'm quite curious to see what will happen to a fused individual made of spiritual and physical matter when they die."

Back on the table, Rukihime was riding Nemu's lap, believing she was bouncing up and down on Ichigo's cock. Nemu had her face in the girl's lactating breasts, drinking right from the tap. "Cumming! Ah! Ahhhh!" Rukihime's hazel eyes rolled backwards as she was pushed through the doors of climax again, soaking Nemu's lap. "Cum in me!" She looked down and cupped "Renji's" face. "Cum in me, Renji!"

It didn't take long for "Renji" to give the girl what she wanted. Rukihime's honeypot continued to tighten around Nemu's faux cock, choking it in a pleasurable vice. Nemu made no cry of pleasure when she felt something start to flow out of her, her eyes closing while moaning into the girl's lactating boob. "Mmmmmmmmh!"

The toy that served as Nemu's cock absorbed her love juices and converted them into hot cum. A hot, boiling wetness filled up Rukihime, splashing against the inside of her womb. Believing she was being creampied by both of the men she loved, Rukihime let out a scream of ecstasy and came one final time. "YESSSSSSSS!"

With that last scream, the room swiftly fell silent. Rukihime went limp in Nemu's arms, her head tilting backwards. Mayuri looked up and raised an eyebrow. "Oh? Is she dead?" Getting up, Mayuri grabbed a stethoscope from a drawer and walked over to the table. "Nemu, stop drinking her milk like a toddler! Lay her down so I can examine her." Nemu did as ordered, pulling out of the girl and laying her on her back, the girl lying still. Putting the stethoscope's resonator disk over Rukihime's heart, after a moment, the mad scientist sighed. "It would seem she's just fainted. What a pity. I would have liked to have performed a dissection on her. But no matter. I've gathered enough data on her for now to form my own experiment. The drugs should be out of her system by the time she wakes up. I can always reacquire her for more experiments, if need be. Nemu, take off that ridiculous toy and clean her up before you take her back to Karakura Town."

"Yes sir, but why not keep her here? Nobody knows that we are in possession of her," pointed out Nemu, removing the flaccid sex toy with a groan.

"Has that aphrodisiac shrunk your brain? Kisuke Urahara will have figured out that I was spying on him and that I had appropriated his test subject. The last thing I need is for him and Yoruichi Shihoin to knock down my door, or worse, Captain Kuchiki. Now hurry up and get her out of here."

"Yes, Master Mayuri." Nemu put her clothes back on before picking up the unconscious Rukihime and carried her away.

"Oh, and when you're finished disposing of her, clean up this mess you made! It smells like a whorehouse in here…."

A few hours later…

Morning came and with it, sunlight filtered through the windows of Rukia's quarters. Lying on the bed in her shihakusho, Rukihime was slowly roused from sleep by the sunlight and blinked her eyes. "Wha…" she groggily slurred, feeling tired and drained. "What happened?"

Sitting up and yawning, Rukihime looked around and found herself back in a familiar environment. "Huh? Wasn't I in Mayuri's lab?" she wondered. She checked herself out but there was no marks on her body from where the scientist had repeatedly injected her with drugs. Her hands went to her tits but aside from their usual sensitivity there was no milk that came out of her titties. She pulled her panties to the side but her pussy looked normal, not like it'd been fucked for an hour and creampied to the brim.

"I guess it was just a bad dream…" she wondered aloud before sighing. "I must have really drank too much last night. Man, how messed up did Kisuke make me to where I have dreams of Mayuri torturing me?"

Shrugging, the girl got up and started to get dressed, putting the bad dream behind her while she dealt with today's challenges…

To be continued…