Author's Note: A wild chapter appears! *ducks rain of rotten vegetables*

So, hi there. It's been a while. Sorry for the incredibly long hiatus. First there was Writer's Block, then NaNoWriMo, then editing/posting my NaNoWriMo fic (which I still haven't finished yet) and then...yeah. So, this chapter has been sitting on my hard drive, half-written, for nearly a year. And I figured that was long enough. I managed to hit some Writer's Block on my NaNoWriMo fic, as well as wanting to take a short breather from the RWBY oneshots I've been doing for the past week or so, and then I rediscovered Kim Possible and this chapter just sort of...happened.

Updates will undoubtedly remain inconsistent and sporadic, but they will come eventually. I have no plans to discontinue this fic.

A Mile in Your Shoes
Chapter 2: The Wager

Shego's head was throbbing.

Well, actually, her entire body was throbbing. And not the good, I-just-got-a-Midas-massage kind of throbbing. No, it was more like the painful I-just-got-run-over-by-a-semi kind. Her everything hurt.

"Ow," she muttered as she started to roll over. "Sonuva—"

Whumpf!

Shego, having run out of bed to roll over on, fell face-first to the floor. Her head hurt so bad from the impact that she wanted to curl up and cry.

Instead, she cursed vehemently into the carpet. Already feeling more like herself after that expression of her anger, she slowly pushed herself up, then stood. Only after she had regained her feet did she bother opening her eyes.

Then she froze.

"Ooookay," she muttered, taking in a rather impossible sight. "So...I'm in Kimmie's room?"

It was true. The room was so unmistakably Kim's. A familiar-looking backpack leaned against a desk with a computer and copious papers that were probably Kim's homework lying on its surface. The bed was made neatly, but it was the nightstand which sealed the deal. On it was none other than one of Kim Possible's iconic Kimmunicators.

"Okay, so, I'm in Kim's room. I woke up in her bed. And I don't remember most of last night. What the hell did I have to drink?"

Her train of thought promptly derailed.

"No," she muttered. "There's absolutely no way we...say...my voice sounds kinda..."

She lifted her hand to her throat, but started when she saw a flash of pinkish-peach from the corner of her eye. She spun around to confront the threat, taking a fighting stance by instinct alone.

There was nothing there.

Or, to be more specific, there was nothing but her arm, extended out in front of her, which was pinkish-peach.

"What the...?" she muttered. Without a second thought, she leaped across the room, wrenched open the door, and sprinted down the hallway outside. She found a bathroom and almost flew into it, slamming the door behind her. Then she turned to look into the mirror.

And stared.

Staring back at her was the reflection of none other than Kim Possible herself.

Shego leaned forward. Kim did the same. Shego pinched her cheek and watched Kim mimic her movements exactly. Then she held out her hands and stared at them. At the skin.

The normal, not-green skin.

Her memories of the previous day came rushing back, but they were unimportant in the face of this revelation of epic proportions.

Her legs gave out under her, and she collapsed onto the toilet, still staring at her normal hands, attached to normal arms, part of a normal body.

"Holy shit."

Oh man, what am I going to do?

Kim nervously paced back and forth across her prison cell, wringing her hands. She'd already tried shouting for help, and examining the cell for flaws she could exploit. Not that she intended to actually break out because that would make her a criminal, but it was helpful to know about any possible exits.

Unfortunately, there were none. The gray walls were solid and seamless, with no windows. The one open side of her cell was covered not with bars, but with some kind of glowing blue force field.

So I'm Shego, Kim thought. Does that mean Shego's me? Did she wake up in my bed? In my body?

She froze, one foot in the air.

IN MY BODY?!

"Oh no, this is a disaster," Kim muttered as she resumed her pacing. "Who knows what she'll do? If she's me..."

The mere thought of Shego being able to do whatever she wanted while Kim got the blame made her freeze again.

"Disaster," she reiterated, starting to pace once more. "This is so the drama!"

Then she had a thought.

"No, no it's not," she went on. "All I have to do is tell Doctor Director who I am! There's no way she could mistake me for Shego even if I am stuck in her body somehow. Then she'll let me out, we'll find Shego, and switch us back! Done and done! So not the drama!"

Her posture relaxed as she let out the breath she'd been holding ever since she woke up to the sight of Shego's green skin. She continued pacing, but her frantic gait had slowed into a determined stride. She had a plan, now. A fairly good one. Now, all she had to do was put it into practice.

The numbness of shock began to fade as Kim's plan solidified. As she continued pacing back and forth, she abruptly became aware of a number of strange sensations.

Shego's body was taller. Her hair was longer. Kim felt...better than she ever had before. Faster. Stronger. More...

She turned, and felt a very unfamiliar weight on her chest. She looked down and blushed. She had always been a little jealous of Shego's incredible body. Kim could not claim to have ever been called ugly, but after well over a year of fighting Shego and making comparisons, she couldn't help but feel that she fell a bit short when it came to her looks. Sometimes she still saw herself as the scrawny, braces-wearing middle-schooler that she had been on her very first mission, especially in comparison to her voluptuous archenemy.

And now that Kim was in Shego's body, getting some first-hand experience with looking like the villainess, the old envy was rearing its ugly head once more. She turned her head to gaze at the wall instead of her...Shego's...torso.

"Gawd, this is so awkweird," she drawled. She almost laughed at the sound of her own voice. The real Shego wouldn't be caught dead using such a ridiculous portmanteau as "awkweird."

"I'm hot, too," she muttered, then her blush returned. "Ack! Not hot like...hot hot, not that she's not hot, but like...the other kind of...the temperature..."

She sighed and fell silent. It was true, though. She knew, in her mind, that the prison cell she was currently occupying—a situation she hoped was temporary—was supposed to be air conditioned, but she felt as if she were outside, under the intense rays of the warm Summer Sun.

She held a hand up to her face and examined it. Was this Shego's glow? It felt so...warm.

And then her hand was abruptly encased in glowing green plasma.

"Augh! Fu—"

After several long minutes of staring at her not-green reflection, Shego finally stood up and left the bathroom in a daze...

...and was promptly bowled over. She turned her fall into a back-handspring—a move she'd picked up from Kimmie, not that she'd ever tell the teen heroine—and landed easily back on her feet. Far too easily, actually. She knew Kimmie was shorter and smaller than her. She weighed less. Her center of gravity was different.

The warmth of her plasma was gone.

She wasn't sure how to feel about that.

Still, it should not have been so easy to perform even a relatively simple handspring in an unfamiliar body...

She shook her head, resolving to worry about it later. She had something more important to deal with: namely, the thing that had just run her over. She turned to look.

It was one of the Possible twins. He was lying on the floor, grimacing as he rubbed his head. Attached to his feet were what appeared to be miniature rockets.

"Oh, hey sis!" he greeted her.

About to try teaching the stupid kid a lesson with a bolt of concussive plasma to the face, Shego was suddenly reminded that she, at the moment, appeared to be Kim Possible. Which meant no plasma powers, no criminal record, and absolutely no desire to get arrested even if it was probably the quickest way to get her own body back.

Well, when in Rome... she thought. Aloud, she said only one word:

"TWEEBS!"

"Uh, gotta go!" the twin before her exclaimed as he leaped to his feet and literally flew down the hallway, trailing two streams of rocket exhaust.

Shego almost chased him, but thought better of it. She couldn't trust herself not to seriously injure the kid. While she was many, many things, she was not and never would be a child abuser.

The thought that Kim was technically still a child didn't even enter her mind.

Instead, she seized upon an idea.

A wonderful, glorious, and incredibly ill-advised idea.

With a grin that would normally have sent Doctor Drakken fleeing in fear for his life, she walked back to her archfoe's room and picked up the Kimmunicator. The device was simple to figure out, so it only took her a moment to find the button she needed.

"Oh, hey Kim," a familiar voice issued from the device's speakers as a familiar face appeared on the screen. "Need something?"

"Got a bit of a sitch," Shego replied, still playing the part as well as she could. "I need to talk to Shego about our last fight. I think she might know something important that we missed."

"Oookay," Wade said, his eyebrows furrowed. "Something wrong?"

"Nothing's wrong. It's so not the drama." Wow, even if it's still Kimmie's voice I'm hearing, that sounds weird coming from my lips. "Just need to talk. Privately. Which is where you'd come in. I'm gonna visit GJ and talk to her, and I need you to...keep them from listening in."

"Oookay," he repeated. "Any reason why?"

Shego hesitated for a long moment.

"You'll find out when I talk to her."

Kim had fallen into a meditative silence when she heard footsteps approaching her cell. She opened her eyes and banished the thoughts that had been plaguing her for the past...however long it had been. It was difficult to tell time in a cell with no windows.

The plasma hadn't lasted long, thankfully. After a few frantic waves of her plasma-encased hand—and a few resultant blasts of plasma that had dissipated against the gray walls—it had gone out on its own. So she had sat down on her uncomfortable prison bed and started going back over her plan. It was fairly simple: ask to see Doctor Director, then tell her she's Kim Possible. And back that up by answering any question Doctor Director asked with an answer that Shego wouldn't know. Still, she wanted to consider whatever flaws the plan might have. What if Doctor Director didn't believe her? What if she did, but Kim and Shego couldn't switch back? What if Shego vanished with Kim's body and they couldn't find her?

The footsteps grew closer. Kim stood up and moved as close to the force field as she dared. A Global Justice uniform came into view, followed by the face of the man wearing it.

"Will Du," she said flatly.

The man raised his eyebrows. "Shego," he replied. "How do you like your cell?"

"I wasn't aware you had a sense of humor," Kim replied. She tried to hide a smile. She had always been so polite and friendly, even to people she disliked. She was supposed to be a hero, after all.

But now, she was Shego. Now she could make snarky comments without anybody giving her weird looks. Now she could say everything she'd always wanted to say but had never been able to before.

That didn't mean she wanted to stay in Shego's body any longer than necessary, though. Even with the fringe benefit she'd just discovered, it was still too weird.

"Listen, I need to see—" she started to say.

"Someone is here to speak with you," Will responded, cutting her off. "Put these on."

He tossed a strange-looking device through what Kim had believed was an impervious force field. She picked up the device and stared at it. It had two bulbous hemispheres, connected by a short length of chain.

"Put them over your hands," Will clarified.

Oh. Handcuffs. Probably plasma-proof handcuffs.

With a shrug, she slipped her hands into the cuffs and watched with interest as they tightened around her wrists, hiding her hands from sight. Being forced to wear cuffs by a man with whom she was supposed to be allied was grating, no matter how much she appeared to be Shego right now. Still, it wasn't like she had any idea how to use her plasma powers, and if these cuffs could stop another accidental flare-up, she'd endure them.

More importantly, who was here to see her?

"Do it now, Wade. Feel free to listen in though. You'll find out soon enough anyway."

Wade Load frowned in confusion, but did as Kim had asked. He owed her so many favors at this point that he'd gladly do anything he could to help her. If she wanted to have a clandestine meeting with Shego, of all people, Wade wouldn't get in her way no matter how unusual the request was.

"Alright, electronic surveillance should be disabled. Cameras are still working, though. They won't take long to catch on, so make it quick."

"...Thanks."

Wade's frown deepened. Kim had been acting strangely all day. The absence of her usual "please and thank you!" was just weirding him out even further.

"You're...uh...welcome."

He tapped into Global Justice's security cameras and brought up the feed from the one watching the room where Kim now resided. Kim sat on one side of a thick pane of reinforced glass. Shego was just entering through the other door, wearing the plasma-suppressant cuffs he had helped to design. When Shego's eyes landed on Kim, she frowned, but said nothing as she sat down on the other side of the glass. They both picked up the handsets that would allow them to communicate through the thick, soundproof pane. Kim had said he could listen in, so Wade had tapped into the communication system even as he blocked it from being heard by anybody else.

"Come to gloat?" Shego grumbled.

"Hardly," Kim drawled in a very Shego-like manner. "Honestly, I just wanted to say hi, and offer you a little wager."

"No," Shego said. "I'm going to tell Doctor Director everything and fix this."

Wade stared, bewildered, as he wondered just what the heck was going on. He took a sip of his soda, wondering when this strange conversation would start to make sense.

"Or..." Kim smirked. "We play out this little wager, and when it's over we get Nerdlinger to fix this with nobody else the wiser."

Wade almost spat out his drink when Kim used Shego's nickname for him.

Shego frowned. "What's your game, Shego?"

This time, Wade did spew out his soda. Coughing, he reached for a napkin and mopped up the mess before it could get on any of his equipment.

"Simple," Kim said, though Wade was now nearly certain she wasn't Kim Possible at all. "We give Wade however long he needs to build something to switch us back, and in the mean time we live each others' lives. I play the globe-trotting teenage action hero and you play the sexy, villainous femme-fatale. Sound like fun?"

"No," the real Kim deadpanned. "We're going to fix this as soon as possible and then we're going to pretend it never, ever happened. Okay? If you're so curious about being a globe-trotting action hero, just do it in your own body. I am not going to pretend to be a supervillain!"

"Now, Kimmie," the real Shego replied. "Don't you see what a great opportunity this is? It's a chance to walk on the wild side! A chance to see what it's like to be a villain!"

"Not doing it."

"Come on! It'll be fun!"

"And you're willing to pretend to be me?" Kim asked curiously. "I mean, you're always insulting everything from my fashion choices to my friends to my attitude...would you even be able to pretend to like all that stuff?"

"Bah, details," Shego scoffed. "Come on. The device got destroyed anyway. We'll be stuck as each other for a few days at least, no matter what. Might as well have some fun with it. Or are you too scared?"

"Scared?" Kim parroted. "I'm not scared, I just don't want you ruining my reputation because you can't remember how to be a hero!"

"Well, what about you?" the villainess retorted. "You are so saccharine-sweet that I bet you can't even stomach the idea of stealing from someone! You're too much of a coward to even try escaping your cell!"

"Coward?!"

Wade lowered his face into his hands and sighed. He already knew what Kim's response would be.

"Fine!" Kim exclaimed in a fit of blind passion. "Fine! I'll do it!"

Shego grinned.

Wade groaned.