Author's Note: This story is the fruit of a promt suggested by car54. Enjoy.

(I don't own Kim Possible or Ben 10.)

Chapter One: The Meeting

Ben was in depressed spirits as he sat on a cliff ledge overlooking the Navaho village. What happened? Ben thought sadly as he wiped a stray tear away. Why are you crying? The boy asked himself. He was a man-child. Tears were forbidden in an unspoken code of cultural norms. Ben closed his eyes and allowed his feelings to be expressed. After all, no one was watching. That assumption was quickly proven wrong when Ben heard light footsteps behind him. "Here to gloat?" Ben growled without looking back at Gwen. The girl simply said nothing until she put a hand on his shoulder and started to softly sing "Don't You (Forget about Me)" by Simple Minds. Ben blinked in shock at Gwen's soothing singing voice. "What's on your mind, Doofus?" Ben looked at Gwen. "Why did Kai have to do that to me?" He asked her. Gwen smiled sadly. "There are many types of girls out there. Unfortunately, you just met a Mean Girl, not a full blown bitch but well on her way." Ben turned back to her angrily. "Why didn't you tell me?" Gwen looked at him, "There are just some things a person has to learn by themselves." She told him "Come on," Gwen said as she hugged him. "Grandpa's almost ready to leave." Ben just nodded and gave Gwen a brave and thankful smile.

At the Rustbucket, Max was just loading the last of the souvenirs. A familiar beeping started to blare out. Max discreetly looked at the alarm network and cursed. The one in Area 51 was just tripped. When Max got in the Rustbucket, He saw Ben and Gwen were already buckled up. Ben looked at Max with a hard expression. "Grandpa, let's light this candle!" Ben said with a serious expression on his face. The old man activated the hyper-jets when they were away from civilization and tweaked the system so that the GPS would automatically deactivate the jets within coating distance of their destination. When Max pulled up to Area 51, he saw a strange hovercraft and readied himself for almost anything as he and the kids entered the base.

Shego glared at Drakken and folded her arms across her chest in annoyance at her employer. "What are we doing in this place, Dr. D?" She asked. Drakken looked up from the pile of junk he was sifting through. "Even a brilliant genius such as myself can have a rough patch." He told her as he gave her a sideways glance before he continued to sift through the piles of useless junk in search of a spark of inspiration. Shego started laughing. "It's days like this that make me almost reconsider going back to being a hero." Shego told the man as she jumped off of the crate she was using as a chair and turned to Drakken. "I'm going for a walk." Shego told Drakken as she stretched and started to walk out of the room.

Ben and Gwen froze when they heard a woman's voice. "…going for a walk." Ben's eyes got the size of dinner plates as he and Gwen stuck themselves to the wall and waited. The shadow of a woman crossed the threshold. Then, a woman with raven hair and an odd green pigmentation to her skin followed her shadow. "Man," Ben said with a grin. "She definitely keeps to a theme." The boy mumbled as he took note of the woman's green and black cat suit. Gwen glared at the back of Ben's head. "Stop drooling and go Hero, Doofus!" Gwen hissed as she pushed him. Ben's grunt drew the attention of the unknown woman. She glared in their direction. Ben walked out. He grinned at the woman. "You're pretty hot, for an old maid." Shego chuckled and ignited her hands. "You ain't seen nothing, yet." Shego said. The boy didn't even flinch. This caused Shego to arch an eyebrow in surprise. He actually looked bored! Then, Ben cracked his knuckles. "Nice trick," he said with a laugh. "Now, it's my turn!" Ben slammed the Omnitrix down and became Heatblast. "Now, it's a party. You're no Kimmie, but I suppose I could use the workout."

Heatblast gave her an odd look at the strange comment, shrugged, and glared at Shego. As they fought, Ben was surprised to find he recognized the aggressive style of Shego's strikes and reacted accordingly. The sight of Ben actually engaged in hand-to-hand with someone that involved more than beating his opponent with raw strength made Gwen smile. "Nice moves, kid" Shego said with a chuckle. Ben nodded. "Likewise…" Ben said as he punched her hard enough to send Shego stumbling back. Glass breaking drew attention to the roof where Kim landed with broken glass strewn around her. "Drakken, i-" The strawberry brunette looked around in surprise. "Seems I'm a little late." She said as Drakken went wide eyed. "Kim Possible?!"Shego sighed and said, "Of course, it's her, idiot! Who else would come after us?"

As Drakken went to run, Gwen shook her head. "You're not going anywhere!" The young sorceress growled. Her hand glowed with blue energy. Then, Kim watched in shock as an I-beam in the ceiling was surrounded in that same energy and wrapped itself around Drakken and Shego. Kim then noticed the flaming humanoid creature and went on guard. "Just when I thought this day couldn't get anymore weird in it." Kim mumbled. She approached the creature slowly. A thing on its chest began flashing. A blinding flash of read later, a brown-haired kid in green cargo pants and a white shirt with a black stripe down its middle stood in the creature's place. Kim blinked in shock as Ben and Gwen embraced. "Nice job, Doofus." Gwen said as she smiled at the boy. Gwen then noticed Kim. The girl blushed slightly leaving Ben with a confused expression. "Young love…" Kim said with a smile as Ben joined Gwen in blushing. Gwen gestured to bound Shego and Drakken. "I think you're here for the trash." The girl said. It did not escape Gwen's notice that Kim's anger flashed at referring to the villains as trash. This surprised Gwen. Drakken maybe, Kim thought. Shego's different though. Max walked in with a squad of MPs and smiled at his grandkids. "Let's go, you two. We're burning daylight." He then looked up and noticed Kim. "You need a ride, young lady?" Kim nodded. "Please and think you," She said before she followed the kids and Max to the Rustbucket.

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