Hey all! Sorry that I didnn't update for the past two Saturdays, exams are literally eating up all my time. I spent seven and a half hours doing homework on Saturday... Perhaps the teachers are trying to kill us... 0.o I hope you guys like Katie and Andrea in this chapter by the way. They'll probably b e making some more appearances if you guys like them. :)

Anyway, thanks to all who reviewed that last chapter and thanks to PlayingWithColdFlames for the brownie! :D

Joke
"And then we got ice cream! And then uncle Kai had to do science stuff at the station for five minutes but I got bored so he let me play with hydro-" The four year old faltered, face scrunched up in the concentration as she tried to pronounce the word. "Hydrochloric acid!" she announced proudly.

Amy almost crashed the car. "What?" she asked, trying to stay calm in case she had misheard.

"Hydrochloric acid." The girl looked at her mother, biting her lip. "Is that not saying it right?"

"You said it perfectly Katie." Amy replied quickly. "Are you certain that's what Kai let you have?"

Katie nodded. "Honest Mommy."

Amy sighed. "Let's get you home to daddy and Andrea. Mommy has to go and visit uncle Kai."

"Are you ok Mommy?" Katie asked, aware that there was something wrong with her usually upbeat mother.

Amy didn't reply.

Ten minutes later, they were outside the house Ken and Amy had bought once they found out that she was pregnant for the second time. It had been a risk, Amy wasn't sure she'd ever be able to live in that house if there was another miscarriage. Everything had gone perfectly however, and they were the proud parents of twins, Katie and Andrea.

Ken was finishing paperwork in the living room as Andrea sat, crossed legged on the wooden floor, playing with her My Little Ponies.

"Hi Mommy." Andrea tackled Amy into a hug as soon as she entered the room.

"Hey Andrea." Amy smiled, gently prying the dark-haired child from her leg.

"Tell you what. There's two ice-pops left in the freezer. Do you and Katie wanna go get one? I need to talk to Daddy for a minute."

"Strawberry?" Andrea asked, furrowing her brow suspiciously.

"No. Cherry and raspberry." Amy promised.

"Thanks Mommy! C'mon Katie. Race ya!"

Amy waited until the girl's giggles had faded away to tell Ken what had happened.

"Hey Ames." He left the pile of reports on the coffee table before pulling her into a kiss.

"Missed you." She smiled softly, before becoming serious. "Kai took Katie to the lab today." She said quietly, arms still around Ken. "He let her play with Hydrochloric acid."

Ken cursed under his breath. He held no real interest in science but he had taken enough of high school chemistry to know what Hydrochloric acid was. "I swear, if Katie got hurt, I'll wring his scrawny neck."

"Katie's fine." Amy shook her head. "Can you mind the kids for a while? I'm going to have a conversation with Kai."

"Of course."

Amy had that look in her eye that told Ken she meant business. Her posture was tense and purposeful as she left the house to hunt down Kai.

As Ken remembered the occasion when she had assembled a taser from a camera, he was just glad that he wasn't on the receiving end of Amy's rage.

Kai was still at the lab when Amy turned up, ready to tear him to pieces if she needed to.

"Kai." She snapped as she entered the otherwise empty crime lab.

"Oh, hey Amy." Kai glanced up from the computer he was working at.

"What's this about letting Katie play with hydrochloric acid?" Amy forced herself to not scream at him. She had to stay calm, at least until she understood what Kai had been thinking.

"What? Amy, I-"

"Kai." Amy exhaled slowly. "Please. Answer the question."

"She wasn't. She only thought it was. I gave a beaker of water. We've been out of Hydrochloric acid for like a week. I can prove it. I just put in and order today."

Amy felt her knees go weak with relief. "It's ok Kai. I believe you."

"Sorry if I scared you." Kai laughed. "It was just a joke. I'm not that stupid."

"Sorry for storming in her like that." Amy felt herself blush.

"It's ok." Kai shrugged.

"That was a terrible joke by the way." Amy laughed, relief making her giddy.

"That reminds me." Kai sat up straighter in his seat. "You'll love this one. How many cops does it take to change a light bulb?"

"Goodbye Kai." Amy laughed as she left the lab before she could hear the doubtlessly terrible punch line.

Kai really had no idea what he was doing when it came to jokes.