Edward and Alphonse Elric were at Central City HQ looking for Colonel Roy Mustang.
"Al why do we need to talk to Mustang again?" a young boy of 16 known as the Full Metal Alchemist asks a suit of armor.
"He knows something about the tenth Homunculi Perfection." the suit of armor known as Al replies.
"Oh that's right." Edward says.
They run into Alex Louis Armstrong the strong arm alchemist.
"Oh hello there Elric brothers what brings you back to Central City?" asks the strong arm alchemist.
"We're looking for Colonel Mustang the flame alchemist." Al says before a portal opens and deposits a redheaded women and a pale skinned raven haired women before rapidly closing.
"Who are you two!?" asks Edward Elric.
"I'm Kim Possible and you are?" the redhead asks the young state alchemist.
"I'm Edward Elric the Full Metal Alchemist and also the youngest state alchemist ever." says the blonde.
"But there's no such thing as alchemy!" Kim asks confused.
"Hello Princess we're not in Middleton anymore." says the raven haired women with pale almost green skin.
"If this isn't Middleton then where are we?" Kim asks looking around thoughtfully.
"What is that on your right hand palm, Kim?" Alponse asks the redhead.
"I didn't have this before I came through that portal." Kim says as she looks at her right hand palm.
"What the hell is that!?" Shego
"It's called the Ouroboros tattoo or the snake eating its own tail, it is the mark of the Homunculi or artificial human beings." Edward says with a look of utter shock.
"Then why do I have the mark?" Kim asks starting to panic.
"It seems to me that you were sent to a different universe so you could most likely lead a relatively normal life, at least that's my theory." Alphonse says to his brother Edward.
"Why would they do that blondie?" Shego asks as she crosses her arms.
"I don't know but there has to be a reason." Edward says rubbing his chin in thought.
"I did it to give her a chance at a somewhat normal life." says a mysterious male voice behind them.
"Homunculus why?" Alphonse asks the father of the Homunculi.
"Because she was perfect, beautiful and innocent and I didn't want her to destroy that innocence by being a Homunculi so I sent her to a different universe hoping she would do some good where ever she ended up." Homunculus says with a sad smile.
"What is my real name then?" Kim asks dejectedly.
"Perfection my dear." Homunculus says.
This is my first Full Metal Alchemist and Kim Possible crossover so let me know how I did.
What will happen next? You'll find out this and more in the next installment of FMA and the 10th Homunculi. Yours truly, Teletubby2015