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Possible Fusion

By Demonabyss

Chapter 1: Hunger Pains

It had been a long day for Kim Possible. Dragging on to no end with her barely able to keep up the appearance that everything was fine. Then again, all her days lately seemed to be long, ever since the Bueno Nacho incident. Oh, she had hid it well from everyone, mostly because she had no idea what was wrong or even if something was wrong. It had all started that night of the diablo incident, when she had felt such hatred for Shego and Drakken for playing with her emotions. Something inside her had broken free almost, for lack of a better description. Ever since then, she had felt … something. At first, it was so faint that it didn't even register, but it had grown considerably since then, especially during her missions. The feeling was weird and unknown to her, but the unknown instinct also held a note of familiarity. When it had first appeared, she didn't know what it was; all she knew was that it made her more irritable and aggressive. As the unknown feeling's effects grew, so did Kim's understanding of what it was.

The feeling was … a need, a gnawing hunger of sorts that reverberated throughout her entire body and then some. The redhead didn't know what the hunger was for or how to sate it, only that it was slowly but steadily growing as time went on. The hunger also rose and sank with regularity, in a disturbing pattern that Kim recognized. Her irritation and such grew the more she was around other people, other living things. Anything that was healthy or even the slightest bit alive made her hunger rise considerably and when she was away from such things, like being alone in her room, the hunger died down to a steady ebb that threatened to drive her mad. Sure normal food helped, but all it did was kept the hunger from rising for a short time and each time was shorter and shorter, now almost to the point meals barely did anything. It was getting to the point that she was beginning to consider not going on missions on the off chance of meeting Shego and or DNAmy, more specifically Shego's plasma and or DNAmy's massive creatures. Every time she was near with either of those, it just made her senses go nuts and made her unknown hunger shoot up like a flare rocket. Even worse was that while she knew what affected her hunger, she still didn't know what it was she hungering for.

'God I can't take this much more. What is wrong with me?' she thought to herself irritably as she slowly went to sleep, hoping the next day would be better.

Kim woke up and immediately she could tell it wasn't better. '4:37 am, god damn it,' she thought irritably as she reluctantly got up, knowing she wouldn't be able to fall asleep now. The gnawing hunger in the pit of her stomach was still there and as strong as ever. She got up and got ready for school, not rushing since she had been woken up early due to the same damn hunger. Turning the hot water in the shower to full blast helped wake her up as well as ease the unnatural need in her. That was another thing she noticed: her sensitivity to hot and cold had been heightened. While her tolerance to cold was the same as normal people, maybe a little less, her tolerance to heat had risen considerably. She now enjoyed scalding hot water almost as if it were lukewarm; it didn't even burn her much if at all. The redhead got out of the shower and dried off, staring at her self in the mirror. 'Another long day,' she thought irritably. She went downstairs and made herself a large breakfast, hoping that it would stave off the need for awhile but doubting it. Since she had started needing more food, she had quickly learned how to cook for herself, fast and in large quantities.

Her mother came down stairs to find her daughter scarfing down a tall stack of pancakes. Ann Possible was concerned for her daughter. Though it hadn't been apparent before, Kim's attitude and aggressiveness, not to mention her appetite, all bothered her mother. At first, she feared that Kim was pregnant, but that notion was quickly squashed as Kim had been having her periods and wasn't showing for months ever since this strange personality change had started. Her daughter was much more easily irritated and always seemed distracted by something. Most notable was her daughter's patience reserves were always worn dangerously thin, thus anything could set her off. As a result Kim had yelled at and threatened Jim and Tim in such a way that Ann wasn't sure if she had been joking or not. Since then the boys had not bothered their sister at all for fear of her breaking them into very small pieces. "How're you feeling sweetie?" she asked pleasantly. All she got was a growl in return. "I see. Well, hope you have a good day in school," she said optimistically. She got a groan for that.

Kim walked into school with a definite "don't come near me or I'll kill you" look on her face. The students of Middleton High had noticed her darkening mood over the past couple of months and knew to stay out of her way … well most of them anyway. Despite all the people, Kim could sense her coming. 'I so don't need this right now,' she thought as Bonnie came up to her.

"Morning, K. What happened, your brothers prank you again, or do you always look this way in the morning?" the so-called queen of MHS said arrogantly. However, her confidence and that of those in the hall watching vanished into thin air when the redhead turned to level a piercing emerald glare on the brunette. The room temperature seemed to drop a few degrees as Kim slowly marched towards the brunette and before anyone could say anything, Kim had Bonnie by the throat in the air with her feet dangling with one arm.

"I do not know what the hell your problem is, Rockwaller, but frankly, I'm sick and tired of it." She gripped tighter, nearly breaking Bonnie's neck and almost cutting off her oxygen. Now then, you will leave me alone and keep all comments to yourself. I'm in a bad mood, understand?" Kim asked in a growling voice. Bonnie was just barely able to nod with Kim's vice-grip around her neck, no where near able to speak. The redhead released her and stalked away, clearly in a foul mood as everyone backed away from her, fear etched in their faces with rage etched into hers. They had never seen the girl this angry or violent before, and knowing that she took down monsters and villains on a regular basis, they all took special care not to get in her way. Even her supposed boyfriend Ron Stoppable was keeping a safe distance and was being much quieter than usual due to the fact that almost everything seemed to set Kim off at the moment.

During class, people were reluctant to sit next to the redheaded cheerleader-turned-predator due to her foul mood being almost tangible, a visible angry aura that seemed to lash out at anyone who dared to get close. The teachers, for the most part, ignored it as the girl paid attention in class, even if it seemed she was doing it with some difficulty. By lunch, Kim's mood had degraded even further as with all these healthy people around her, the gnawing need in her was blaring like a solar flare. It was driving her crazy. She practically knew that the thing necessary to sate her self was close, she could all but taste it whatever it was, and yet she couldn't find it! Even worse were her now completely out of whack instincts. They kept telling her to attack the students, to attack and eliminate, and it took a good amount of will power not to do so. 'God, what I wouldn't give to for something to stop this!' she thought to herself. However, her thoughts were interrupted by the distinct beep of her Kimmunicator. She instantly picked up, knowing anything could be better than this. "What's the sitch, Wade?" she asked as normally as possible.

Wade sighed at seeing Kim's stressed look. He was worried along with Ron, her parents, and everyone else. Kim's erratic behavior was starting to be noticed by everyone but there was little they could do as it seemed not even Kim herself knew what the problem was. "DNAmy has been seen in Egypt, creating live sphinxes. The local government has asked you to take care of it before it becomes a real problem," Wade informed the teen heroine who just seemed to scowl at the information. He gulped and continued on. "I've arranged a ride to meet you at the airport in half an hour. I'll give you more information on the way," he said as he quickly cut the connection. Kim was starting to really scare the boy, and that was through a computer screen. He didn't even want to think about facing her like that in person. Hell he'd rather face Dr. Director in person then Kim as she was right now. It was then the boy genius realized something. Kim's eyes had looked different. He brought up the last transmission and froze it just as Kim was glaring at him. 'There! Her eyes were slightly more slanted and the irises looked weird, they weren't perfect circles anymore and the color changed a little bit. Her eyes were no longer bright green; they had darkened to the point of almost becoming brown. 'I don't like the looks of this,' the boy thought nervously.

Kim sat in the jet, thinking quietly to herself while trying to keep her hunger off her mind. If only she knew what it was she needed then she would sate herself in a flash. She knew it wasn't something like blood or flesh as the thought of feeding on those things repulsed her just as much as ever, not to mention it didn't affect her hunger much at all. But the redhead knew it had something to do with living creatures, but what? What was it about them that drove her hunger so violently? She shook it off as they came to the drop zone. Ron had been unusually quiet, and she was thankful for that. He was her best friend, but there were times even he got on her nerves, even before this hunger thing. 'Get it together Possible; you don't have time for this. Just get the mission over with and get home, then after which you can go to an all-you-can-eat-buffet. Damn it, I hate this!' she thought as her hunger rose the closer they got to DNAmy.

Kim and Ron parachuted down and landed near her base which was situated in some old ruins. "Okay Ron, you and Rufus go in and disable any machines you can find. I'll take care of DNAmy. Got it?" she half ordered half asked.

"You got it KP," he said enthusiastically though he could tell that she just wanted to get this over with. Despite being her boyfriend and knowing her since kindergarten, he had never seen her act like this, even when she was truly angry. They separated; he and the naked mole rat going around while she took the direct approach. "Okay buddy, let's see what we can find. Honestly, I feel sorry for DNAmy. I mean no one deserves to face Kim when she in one of her moods, especially now," he commented as he made his way through the base.

"Yeah, scary," the naked mole rat replied, poking his head out from Ron's pocket.

Kim entered and was immediately confronted by three living sphinxes. Two of them had lion bodies, eagle wings, humanoid heads and were twice the size of normal lions. The third had no wings but was bigger than an elephant. As they attacked, her hunger spiked to unprecedented levels. It nearly made her buckle over in pain it was so strong. She dodged their paw swipes as best she could but she just felt so weak for some reason despite being perfectly healthy. One of the smaller sphinxes attempted to pounce on her. Kim rolled to the side only to be under the claw of the large sphinx. She dodged but barely, the back of her shirt ripped badly. The redhead was slowing down the longer this took and she knew it. The hunger that had been plaguing her this whole time was now a raging wildfire that demanded attention. With her concentration split so bad, she never saw the paw swipe from the larger sphinx, knocking her hard into a wall and causing her to nearly blackout. With the redhead crumpled on the ground after making a large crack in the wall, the three mythical beasts converged on her, thinking her unconscious.

However, all that attack had done was break the last bit of restraint the girl had on her instincts and, raging hunger. With her mind and senses distorted and her body beaten, Kim Possible changed in that instant. The sphinxes stopped advancing, as if sensing a new predator in the room. Slowly, the girl got up and stood on two legs. Her hands had shifted into sharp claws, her teeth sharpening themselves with incisors becoming sharp fangs characteristic of jungle predators. On her back appeared a mark that resembled a triangle made up of three interconnecting circles with lines linking each of the lower circles to the top one, but her eyes changed most of all. They became more slanted, animalistic with the irises turning a solid burning red and instead of one large pupil in the center, there were now three smaller ones arranged in an inverted triangle. Kim turned on the sphinxes with a look of animalistic rage that would scare the crap out of anyone. She then attacked, releasing an inhuman roar as she did so.

Ron Stoppable snuck in as quietly as possible with Rufus in his pocket. He was high above the main room where he saw DNAmy working at some large machines. She was giggling and having a good time with several creatures around her including what looked like a unicorn, a gryphon, a giant puppy version Cerberus, and a five-headed snake that could be taken as a hydra. "Man, she's really gone off the deep end this time little buddy," Ron commented quietly to which the mole rat nodded. It was then he felt a warm, damp breath on his neck. "Hey buddy, could you stop that. It's really bothering me." He looked down to see that Rufus was right below him, meaning he wasn't the one breathing. "Uh oh," he muttered as he looked up to see a half-human half-bull standing above him, a minotaur. "Oh man!" he yelled as he tried to get away only to be hoisted upside down by one leg. "Run away Rufus!" he yelled. The naked mole rat attempted to do just that, only to be caught by what looked like a cockatrice.

They were brought up to DNAmy who was giggling at the sight. "How do you like my new pets? Aren't they so cute?!" she gushed as she cuddled the Cerberus like it was a big puppy.

"Yeah, real adorable," Ron said nervously from his upside down position.

"Aren't they though?" she asked as though not noticing his tone. "Just wait till you see my great big cuddly sphinxes. I'll bet Kimmie has met them already." She pressed a button, opening the main passage. However, the aforementioned sphinxes didn't come out. "Huh, where are my cuddly little sphinxes?" she asked as they gazed into the darkness. They were greeted by a pair of dimly; glowing, fire-red eyes could be seen. The figure they belonged to stepped from the shadows of the next room, causing both Ron's and DNAmy's eyes to widen.

"Kim?" Ron questioned even more nervous now than before. It was Kim and yet it wasn't. Her mission clothes were ripped badly, showing the drastic changes. For another, Kim was more muscular than fifteen minutes ago. Whereas before she had the body of an Olympic-level gymnast, she now rippling muscles similar to what one would see on a female wrestler, but nowhere near the extreme level of those in bodybuilder competitors. Her hands now sported talons almost like a bird of prey. She was growling lowly like no creature on earth should be able to. In her mouth they could see four razor sharp fangs with a pointed tongue like a reptile's. Her eyes were more slanted and curved, colored a solid red with three black pupils instead of one. In one of her claws was the body of one of the smaller sphinxes unmoving lifeless, shriveled, and appearing faded, for lack of a better term. Most important of all, she was looking at them all like they were all prey. "No way is this good," Ron commented just before Kim dropped the sphinx carcass and dashed at the group of mythical creatures, a killer intent plain on her face.

The animalistic redhead dashed right for the unicorn first. The beast that was bigger than a Clydesdale attempted to rear up to protect itself. Kim simply jumped up, higher than any person, even her, should have been able to, and landed on the creature's back. Before anyone could do anything, Kim did something that shocked them all. She dug her claws right into the creature's back, just above the front shoulders and then bit down hard on its neck with her fangs. DNAmy and Ron watched in morbid fascination as Kim's claws and mouth appeared to be glowing with a strange type of electricity that seemed to flow from the genetically engineered creature into its unwanted rider. The unicorn attempted to buck Kim off but with little success. In a couple minutes the unicorn's colors seemed to fade and its body whither as it got obviously weaker until in less then five minutes the unicorn fell over a dead and lifeless husk. Kim in contrast looked even healthier and just a slight bit taller then before. It didn't take a genius to put two and two together. Kim had just drained the very life out of that thing and looked like she was still hungry.

"Get her!" DNAmy shakily ordered all her pets. The Cerberus went first, all three heads moving to sink their own fangs into Kim's flesh. Kim saw it coming and caught the two outer heads with her claws, while jumping over the third head as it skidded under her feet. She landed on the center head, smacked the three together, stunning them, bit the head she was one right between the eyes, and started to feed. As with the unicorn, the strange electricity appeared as she drained the creature of life energy while holding the heads in place. Despite the creature's desperate struggles to break free, Kim's iron-clad grip held it in place. In even less time than the unicorn, the three-headed dog dropped to the floor, drained of palpable energy, and once again, Kim's health and body seemed to grow, this time emphasized by her increased height, bulk, and the fact that her hair had grown down to her ass, looking like a large, red mane.

The other creatures attempted to attack, but the transformed heroine was more than ready. The gryphon attempted to dive bomb Kim with its talons, only to have his attack stopped as she caught it in her own. The thing flapped its wings frantically to get away from the ravenous girl, but to no avail. The gryphon was slammed to the ground and drained inside a minute, just in time for Kim to jump the hydra's sneak attacks. While the heads were fast, the main body hardly moved, making it an easy target. The center head came a little too close and received a roundhouse kick to its skull, causing the head and the rest of the hydra to recoil onto its back. Seizing this opportunity, Kim pounced on the helpless monster and proceeded to drain every drop of life energy out of it. The beast tried to right itself, but was unable to as Kim had it in a death hold, pinning it down with its own massive body. Once the hydra was dead, she turned her attention to DNAmy, Ron, and minotaur still holding the blonde captive.

DNAmy was frozen in fear. She worked with dangerous animals all the time, but none of them compared to the killing machine that the teen heroine had become. She turned to the minotaur and cockatrice that were still holding the blonde boy and mole rat captive. "What are you waiting for? Get her!" she screamed out of fear and desperation. The bull-man and mutant bird complied, dropping the boy on his head, leaving the rodent, and rushing at the changed redhead. Attempting to land a finishing blow on the girl to quickly end it, Kim sidestepped and grabbed the massive arm of the bull-man before anyone could blink, her talons digging into the flesh easily. She jumped over the beast, twisting its arm painfully behind it as she landed on the minotaur's back. Immediately the vicious teen snapped her other hand out to catch the cockatrice in mid air by its neck and like the other creatures, bit down on bull and began to drain them both of all life with a feral smile on her face. As soon as this happened, DNAmy decided to run at that point, leaving the blonde boy and his rodent to their fate. However, she wouldn't get far.

Kim quickly finished her feast on the two mutated creatures, as she noticed another bit of prey attempting to run away. Dropping the two corpses as soon as she got the last bit of life energy out of them, she jumped after the pudgy woman. Landing on the wall she jumped off, landing on an opposing surface and jumping again, continuing in a triangle jump until she caught up with the scientist in seconds, landing in front of her and blocking her escape. The woman skidded to a halt and immediately started to back pedal away from the red eyed creature that was once a teenager. Kim easily reached and snagged her, absently noticing that she had become much shorter than the redhead remembered. The predator lifted DNAmy off the ground and began to drain her. However, she was interrupted when a random piece of machinery flew at her. Releasing her grip with one claw she caught the metal piece and easily crushed it like an empty beer can. She looked to see Ron standing up next to a pile of various machine parts. In desperation, he began to throw them at her as fast as humanly possible. Kim dodged easily, her grip on DNAmy holding though she wasn't draining the scientist nearly as fast as before now that her attention was diverted. Just as she was about to retaliate, she felt something bite her left claw which was holding her prey. Kim let go out of surprise rather than pain and looked to see the hairless rodent from before.

Ron had watched Kim go after DNAmy viciously. Thinking quickly, he had grabbed the parts and chucked them at his transformed friend. The good news was he had diverted her attention from scarfing down on the scientist like he would on a naco. The bad news, she was now focused on him. Rufus had been able to sneak up and get her to let go oversized scientist and apparently making Kim angry. She whipped her claw and flung the mole rat right at him at high speed. He caught his little buddy, but had little time to check and see if he was all right as Kim roared again and came after him. Knowing that he held no chance against Kim, even before her weird transformation, he turned and ran.

The redhead gave chase, catching up with him easily just as he came up to a massive pile of machine parts. Just as she was about to slam her claws into his exposed back, he tripped. Ron unexpectedly fell to the side thanks to his "dumb skills", causing Kim to slam her claw into the bottom of the stacked pile of parts. The force of the impact caused them all to drop on her before she could remove her hand and escape. She was buried under an avalanche of metal. Ron sat on the ground a short distance away, holding a stunned Rufus, and looking at the pile with a combination of fear and amazement. There was complete silence for a moment before the massive pile started to shift. Ron looked in horror as a claw tore through the wreckage and then Kim pulled her head and part of her significantly larger chest, out from under the wreck but that was as far as she got before she let out a pained growl and collapsed unconscious. That left Ron sitting there holding Rufus in a huge genetics lab surrounded by dead mutations, an unconscious but still alive mad scientist, and his mutated best friend who had trashed the place and was now half-buried under a couple tons of machine parts. This had been one long day.

AN: This is another experimental fic for me. I've never written a Kim Possible fic before so tell me what you think. Just so you know, I have a few ideas of where to go with this and Kim will be getting her own suit, but it will be different from Samus' and how she gets it will be unique, at least to me. Please Read and Review. Later.