Disclaimer I do Not own Kim Possible.
"Dementor!, Drakken!, you guys really team up, lame" laughed Kim who broke into the base. Ron came in after her.
"Shego attack!" shouted Drakken.
Shego ran at Kim leading with a flaming left hook that Kim dogged by jumping into the air then sending the older women a kick to the chin. Shego used a leg to knock Kim down after she landed Shego then jumped into the air aiming the heel of her foot to Kim's face who at the right time rolled out of the way. Kim punched Shego in the stomach then put pressure on certain points of the green women body forcing to fall asleep. Ron threw a large heavy object at Drakken who caught and tossed it back. It was thrown around a few more times before Dementor punched Ron in the face knocking him out. Rufus jumped out of Ron's pocket and bit Dementor on the nose multiple times. Dementor in a not so bright moment grabbed a large metal pan and smashed it into his face missing Rufus all together putting himself out of the fight.
"Kim Possible you think your all that, but your not!" shouted Drakken.
Kim was walking towards Drakken when he pulled out a gun. Surprised by this sudden change Kim never had time to react as he zapped her. Ron, Dementor, and Shego recovered in time to watch as Kim was vaporized.
"I have finally killed Kim Possible I have won this day!" shouted Drakken.
"No you did not, Your gun didn't work just like the rest of your shit" said Kim who really sounded different.
Kim stepped out of the smoke glowing white with the cosmic power of ice that Shego knew came from the same thing that gave her cosmic fire. Everyone looked down at Kim's waist and Shego blushed.
"What are you staring at? My face and boobs are the most interesting things and they are up here" said Kim.
"I wouldn't say that" said Shego biting her finger.
Kim was confused so she looked down to find that she was naked and had a fully erect penis. It was then she noticed she also no longer had boobs and she had a six pack. Because Drakken was prone to wired test he had a mirror near by to use for a experiment. Kim ran over to see herself or well now himself. Kim was now a guy. She/he had a handsome little beard, short hair, much taller, muscular, very muscular, and very handsome. She/he had a body and face that most girls would crush on. Shego stood there just staring at Kim's body taking note of every little detail.
"Drakken what the hell did you do to me!" shouted Kim angry hearing her/his new manly voice.
"I don't know I was trying to kill you, I didn't expect you to turn into a man" said Drakken.
"Shego attack her uh him quick!" said Dementor.
Shego just sat there enticed by the way Kim's new hot body moved.
Kim froze Drakken in place with her new ice powers then beat him up. Dementor surrendered knowing this was a lost cause.
"Pick up the gun and shot me again" said Kim.
Dementor fired the gun but it did not work. Ron called Wade, Betty and her parents to inform them of what transpired with the sex change and power up since if Kim did it they would not be able to tell who this person was. GJ and Wade both took a blood sample to find out what happened to her genetically. They decided to work on the gun together.