This is a SonicX and Sega Allstars crossover, in case you were wondering. Please note that only a few of the Sega characters will be in this fanfic. Chris also has an older sister named Penny and has shared lots of adventures with him.

Read and review. Or don't. I don't care-.-

Chris and Penny were wtching tv with Cream and Cheese, Tails was working on the "Tornado" with their grandfather, Amy was cooking with their maid, Ella, and Sonic was somewhere being Sonic.

Penny heard the sound of a giant bowling ball coming towards the house and looked outside.

"What the heck?" she said out loud, making Chris, Cream, and Cheese look at her.

"What is it, Penny?" her little brother asked.

"I think I see a giant hamster ball," Penny answered, not really sure if what she was seeing was real. Then her eyes widened in panic. "And it's coming right toward the house!"

Soon her brother, the rabbit, and the chao began to panic as well and looked outside to see a giant hamster ball coming toward the Thorndyke estate. Penny rushed out of the livingroom and ran into her room and grabbed a giant malet. She keeps alot of weapons in her room, just so you know.

As soon as she was outside, the giant ball had gotten closer than she expected it to. Out of instinct, she slammed her malet down on the ground and made large crack in the ground. Successfully, the ball stopped as soon as it hit the crack and got stuck.

Chris, Cream, and Cheese went outside after the ball had stopped. Penny put her malet down and walked toward the giant ball to examine it on the inside, but became surprised when she saw nothing but a small monkey.

She went to the door and opened it without difficulty. Penny reached toward the monkey, who gladly accepted her help, seeing that she was good and only wanted to protect her family. As she pulled out the little monkey, Chris ran toward her and stared at the little primate in her arms.

"Is that... a monkey?" Chris was having a hard time trying to find the right words to describe this situation that they were in.

"That's what I'm holding, isn't it?" Penny asked sarcasticly. Chris rubbed the back of is neck out of emberassment, making Penny sigh and walk back inside the house with the little primate in her arms.

Sonic was running down the trail toward the mountain, enjoying the little run. Even if it wasn't little at all. He stopped at the very top of the mountain and gazed at the view. It wasn't everyday that you would get to see a view like this.

Sonic decided that he was starting to get hungry and sprinted forward toward the Thorndyke house.

Upon him enetering from the front door, he gave himself a confused stare at what he was just seeing.

A little monkey with a 'A' t-shirt was sitting on the couch eating some banane pudding that was made by Ella, with Penny and Chris sitting on each side of it.

"What's up, Speedy?" Penny greeted.

"Uh, hey?" Sonic replied,, sounding more like a question. "Um... Why is...?"

"Oh yeah, this is Aiai. We just found him a few hours ago in a giant hamster ball."

The monkey, who was named Aiai, greeted Sonic with a simple "Oo! Oo! Aah! Aah!"

Sonic was a little confused at first, but them smiled at the new member of the group. "Names Sonic. Sonic the Hedgehog."

Dr. Eggmanwas in his lab, angry at the fact that he had lost the little primate named Aiai. How could he have let a monkey escape? How did it get past security?

No matter, he could still find the little pest with the chip he had implanted on him.

"So, you got captured by Eggman and he tried to use you as a test tube?" Chris asked. Aiai nodded in response.

"Well, that explains the giant hamster ball," Penny remarked. Everyone looked at Chris and Penny's grandpa examining the ball, obviously wondering how a little monkey had so much strength to move it.

"Well, what do ya say we add him to our little group here?" she asked with a grin. Cream and Cheese smiled at this suggestion.

"I think that's wonderful," she replied. "We never had a monkey before."

"Chao!" Tails also nodded.

"We could use someone like him."

"What about you, Sonic?" Chris asked the blue hedgehog. He simply shrugs.

"I've got no complaints. I might just have some fun with the little guy."

"How 'bout it, Aiai?" Penny asked the primate. Aiai simply shouted in happiness, making everyone laugh.

"Then it's settled. Welcome to the club, Aiai."