A/N- So I have never written a Dasey fic but I have read them, and I love the couple so much it reminds me of me and my bf except the whole step-sibling thing. So anyway this fic takes place a few months after VWD when the baby is born, Casey and Derek live in a apartment together and they get to watch Simon for 2 weeks. Expect he has a mind of his own. I do not own LWD or the movie Look Who's Talking. Simon's thoughts are in italic. In this fic his is 4 months old.

Look Who's Talking

All day, it took her all freakin' day to make the apartment 'baby proof'. She threw out all the beer, all the precious un-opened beer and she stashed his hokey stuff away along with candles, glass stuff and soaps. Derek sat on his chair, knowing that his step-sister has finally lost her mind. And then she did the unthinkable, she threw out his play boys.

"Casey what the hell! I have been saving those since like sixth grade!" He yelled from the chair.

Casey narrowed her icy blue eyes and put her hands on her hip. "Well Der-ek, I don't want my little brother to be subject by that filth. It's so degrading! Why would a woman pose like this?"

Derek snorted back a laugh. "For money duh! I told you Case, if you where to do play boy we could get out of this apartment and-"

"Don't even finish that sentence Derek, I swear to God I don't even know what you are thinking sometimes. And I don't know why you have these, considering all the girls you bring here…oh and there will be none of that, I don't want their STDs all over the place." Casey snapped

Derek was about to rebuttal when their front door opened up and Nora came in with the baby, she was struggling with all the bags and toys so Derek got up and helped her. "Ok guys are you sure you can handle this?"

Casey smiled and she took the baby from her mom. "Of course we can!" She then turned her attention to Simon. "Hi buddy, do you remember me?"

Simon cocked his head to the side and smiled. "Of course I remember you, you're the other sister girl yep that's it the one who is always yelling at the other guy!"

Derek then came over after he put the stuff down. He took Simon from Casey and started to talk to him.

"Oh and you're the guy who she yells at! Oh you're my other brother, can you do that super-man thing? Please!"

Nora smiled at the two and kissed the top of Simon's head. "Well ok, um Derek no parties and no girls."

Derek frowned and then pointed to Casey. "Your daughter, the queen of Queens said the same thing." He then smiled. "Don't worry I won't have any parties." She then opened the door and sighed. "Have fun guys!"

Simon's eyes widened. "Wait, wait mom! Don't leave me with them, I'll go crazy!" Simon's lower lip began to tremble and then it happened, a loud wail came from his mouth and he started to cry. Derek's eyes widened in pure panic and Casey's instincts kicked in, she took Simon from Derek and held him close to her chest, singing in his ear softly.

"Tale as old as time, true as it can be. Barely even friends then somebody bends, unexpectedly…."

Simon cries came to a stop. "Well, this is nice…a bottle would have shut me up. But this is really nice."

Casey looked up at Derek who grabbed his acoustic guitar, and began to play the melody to the song Casey was singing.

"Just a little change, small to say the least, both a little scared, neither one prepared, Beauty and the Beast."

A few minutes later and Simon was fast asleep, Derek put the swing together and Casey put the small baby in it, she set it to a small rock. Then they both fell onto the sofa, spent. Casey looked at her step brother. "So when did you learn to play a Disney song?"

Derek's face turned a deep red. "During Marti's princess phase when she was three…you tell anyone about this, your diary will make a very public appearance on facebook."

Casey laughed. "Whatever Derek, I do think we make a great team though."

Derek looked at her then back to the sleeping Simon; the rocking of the swing was the only sound that filled the living room. "For once Spacey, I agree with you."

Simon awoke 4 hours later, he studied the two for a short while. Casey was resting up against Derek's chest and Derek had his arm draped across her middle. "Well, well, well. Look at those two…if I was a little older this would be the perfect black mail. Too bad I'll forget though….they actually kinda remind me of that song. Mom left me with good babysitters for once, now it's time to eat!" And with that he let out a sharp cry waking the two of them up. Casey jumped quikly away from Derek and went to the kitchen to get a bottle, and Derek, who was in some kind of confusion shrugged his shoulders and went back to sleep.

A/N- Sorry the first chapter is so short, I should tell you that no one knows what Simon is thinking it's just his thoughts. But you guys should watch the movie 'Look whos talking now' its so funny. Also idk about you guys but I think that song fits Casey and Derek perfectly.