Prologue: A scientist's mistake

"Max!" Phoebe shouted while running down the stairs knowing her brother wouldn't bother to answer. Normally, she thought, this would just be annoying, but this time..damn, it could be dangerous for real!

"Stop whatever you doing!" And for a moment the boy seemed to notice her concern, seemed to stop in his- in her opinion- thoughtless action. The two vials in his hands were still filled with the golden and bright green liquid and to her relief he seemed unharmed.

"God, Max, you know these belong to dad! He told us to never,ever use one of them without his permission!"

Max relaxed at her words, a smile spreading on his lips. "Yeah...and we should brush or teeth, come home early and don't make villains our friends." He winked at Colosso at this comment.

" Think sharply, Phoebe, did I ever care?"

Popping open the vials with his thumbs, he shook his head in amusement.

"Max, I'm not joking! You don't know what you're doing!"

She approached him quickly grabbing his arms, but some drops of the content had already slipped out, falling down in the bowl with a soft thud.

And suddenly everyhing happened really quick.

"Look what you have done!" her brother shouted while colourful clouds of smoke filled the room making it hard to gain orientation. "Me!?" Phoebe exclaimed angrily. How was that possibly her fault?

"Shut up... don't breath it in!" Max himself sounded alarmed now, seeing the dimension of what in his calculation should have been a small chemical reaction. "What?" Phoebe asked coughing, but her brother didn't answer. And before she could think of anything, everything suddenly went black.

"Gosh...what happened?" Phoebe mumbled as she slowly gained consciousness. The weird smoke was gone, but she still felt strange...like something inside her had changed.

"Max!?" she called out unable to spot her brother. But maybe that was because her sight was still kinda blurred. Annoyed she lifted her hands to rub her eyes, flinching in surprise as her fingers made contact with something hard. What's that?, she thought, carefully removing the obstacle from her face. It were simple protective goggles, just like Max wore them all the time...

"How weird...I don't remember putting them on." While speaking her eyes widened in shock. Even her voice sounded different. Getting a bit worried now Phoebe pushed herself up.

She observed the room, but she couldn't make out any difference and having the bad feeling that the change was to search somewhere else, she reached out for the mirror on her brother's night stand. What she saw nearly made her faint again.

"Okay, please don't freak out", she heard her own voice behind her, but couldn't bring herself to turn around.

Her eyes were fixed on the boy in the mirror who stared back at her with a scared expression.

"M-max..please tell me that this explosion somehow managed to lock you behind the glass, cause i-if not...then..."

The scream she had surpressed during the last minute finally left her lips showing that, yes, she was freaking out completly!

"Oh, thank you for you wish...and your girly screaming..." Max said annoyed.

Meanwhile Phoebe's hands were hastily tracing her...his body, feeling the muscels of her arms and stomach, her legs...

"Phoebe!" Max finally exclaimed, "yeah, we changed bodies, yeah, this is weird, but - I won't tell you twice- stop touching my body!"

Phoebe froze in her actions and turned around, letting out a cry as she saw herself looking at her. "This must be a joke!"

Furious she approached her brother. "How is this possible!?"

Just then a chuckle which soon turned into endless laughter could be heard in the background. "This is so funny! Especially, because it happened to you two!" Colosso exclaimed, moving his ears in amusement while earning a reproachful glance from the teenagers.

"Yeah, great..." Max stated, taking a step backwards, but then suddenly stumbled barely saving himself from falling. "Hell...some evil boots you wear..."

And Phoebe would have laughed about it, if it hadn't been herself she saw walking like on ice.

"Max, this aren't heels, just regular shoes..." He glared at her, but they both weren't really in the mood for a fight...with their own impersonations.

"Let's think rationally" Phoebe finally announced."What is the first thing to do now?"

A short moment of silence followed.

"Tell mom and dad/not tell mom and dad" they said synchronously.

"What!?" Phoebe put her hands on her hips and stared at her brother."He is the only one who could help us and no, I'm not staying like this!"

Max rolled his eyes. Helooked ridiculous in this position, but nothing could be changed about it right now.

"You think I want to? I am a girl and worse, I am you!"

"Then, what's your plan!?" Max grabbed his notebook from the table and quickly checked some data. At last, he smiled.

"I got this" he stated. "Just take some time to order the chemicals..." And acting like usual, he typed in some orders, starting his computer system, eyes moving quickly while observing the screens.

"And just how long will that take?" Phoebe asked, still convinced telling her father was the better option.

"An hour, maybe two, maybe until tonight..."

"Tonight!?"

"Tomorrow, if you keep nagging instead of helping!" he spat back, angrily pushing the Phoebe's hair away which continued to fall into his face.

"You know what, it's enough. I'm asking dad..." his sister commented, heading towards the stairs.

"NO!" Max moved a chair with telekinesis to block her way. "If he finds out, he will kill me!" "What do I care?" Phoebe yelled back.

"I have an important date with Link today and I not gonna miss it because of you!"

For a moment she believed to see something like understanding in her brother's expression, but than an evil smile appeared on his...no, her face.

"As if dad would believe you, if I, his oh so precious daughter" he flipped his hair back in a exaggerating manner "would tell him otherwise..."

She shook her head in disbelief. "Lame. I can prove I am who I am"

Her brother laughed and it sounded even scarier out of her own mouth. "Wait, dear sister, I just started..."

Pulling out her phone of the pocket of his jeans, he flipped it open obviously searching for a number.

"For example, I could tell your boyfriend that I am not really interested in his" romantic" and boring dates..." he continued, causing her to panic slightly.

"Don't you dare to! You wouldn't...I mean, that won't work anyway!" But she knew it was too late. Her voice had already given away her uncertainy of which Max took easily advantage.

"OR...I could..." he grabbed some scissors from the table."How would you like it if I cut you beautiful hair?"

Making a squeaking sound Phoebe used her powers to force it out of his grip. "You the worst, Max, the worst!" she yelled at him, disappointed how he could threat her like this.

"Thank you. I'm really flattered. And for your information...I have many, many scissors."

Fixing him with her eyes, she saw it was useless. He wouldn't give up and for now, she had to give in.

"Fine!" she yelled. "Live your egocentric life if you want to, but if we go with your plan, you have to cancel my date finding a real good apology why you can't come AND..." Max ground at his sister's orders."...You will help Cherry with her science project today!"

"Can't we just tell her..." -"...and risk everyone at school finds out?"

"All right,but...I have work to do!"

Phoebe would have given everything to be able to slap her brother at this moment, but she wouldn't be so stupid to hurt herself. At least not physically.

"Maximus Octavious Thunderman!" she yelled, causing Max to roll his eyes as she was using his full name.

"You are such an idiot that you maybe won't understand it, but I promise you, if you don't do what I told you, you will regret it your whole life! I can ruin your's just like you can ruin mine!"

Realizing she meant what she said, he nodded backing away from her.

"Now get out!" she screamed.

Giving her a last stern look he started climbing the stairs. But then he turned around once more, the words leaving his mouth without thinking about it properly.

"Good luck with that! Won't be easy to find something to ruin!"

End of prologue

What do you think? What will happen next?

All the characters of course dont't belong to me and the idea of silblings switching bodies I actually got when I thought of an episode of Disney's American Dragon (still miss and love this show=)) where this happened to Jake and Haley XD. But it willbe very different anyway...you will see...;)