!This is my first FANFIC so be nice!

Discalmer- I don't own this show or any charters

casey walked down the stairs in nothing but her underwear and a skipy little top at the time she didn't think about it she was so used to live in a house with only girls that she forgot about her brothers then she saw Derek, where is every one casey asked calsualy?

Derek turned away from the tv when he saw Casey all he could do was stair.

Um case what are you wearing?

She looked at herself and said oh well I am so used to living in a house with girls I guess that I just forgot

about haveing brothers. This is the kinda thing that I used to wear.

Oh!

So like I said where is everyone?

The Parents went to a hotel for the night and the kids are sleeping over at a friends house.

Oh so were all alone for the day casey tryed to say that in the sexyist voice she could but sadly didn't susceed.

Uh yea said Derek, I'm gonna take a shower.

Okay said casey.

Once casey herd the water running she walked up the stairs as fast as she could she slowy opened the bathroom door and made shure not to make a noise, She was even able to get in the shower without him noticing she gently touched his sholder. Hey Derek.

He turned aroud as fast as he could Casey what are you doing? Get out of here!

Oh come on Derek it's not like we haven't done this before!

I'm sorry for yelling case you just scared me!

Do you still want me out of here?

No I don't!

Later In The Living Room

Hey case I love you but I have to ask is this wrong I mean tecnly we are brother and sister.

Yea we are but onely half and we aren't even related.

You konw Derek I still can't beleve you kissed my cousin Vikiy.

I still can't beleve your goning out with sam!

Well it not like we can let anyone know.

I know it's just I get soo jelous when I see you two togther.

It's okay I would never do any of the thing's I do with you with him!

Oh you mean this?

Later in Derek Bedroom The Next Day

Hey Derek! There was a knock at his Door it was his dad The the doorknob opened and he came in.

Oh shit shit shit casey wake up hurry wake up the the door opened up he covered her up with the blankets as fast as possable. He dad what up he said hoping that he didn't notice the lump of person next to him.

Um Derek do you... Oh Derek I didn't no you had a friend over!

Um yea what were you gonna ask me?

Oh well do you know where casey is?

Yea she went over to emilys yesterday.

Okay thanks Derek.

Yea anythime.

Once casey herd the door close she took the blankets off, wow that was close!

Parents can be soo clueless!

Yea I am gonna go to my room and get dressed.

Okay bye.

Casey opened the door and saw Lizzy and Edwin.

Wow said lizzy we had no idea you were togther.

Well said Edwin I guess we can tell you Lizzy and I are dating to.

Derek opend his door your what?

Were dating Lizzy is my girlfriend.

Just then nora walked up the stairs Casey ran into Dereks room and hid don't tell.

Fine they said.

Nora walked into Dereks room Um Derek I wanted to talk to you your dad said you had a friend over?

Yea and your point?

Well I just wanted to make shure that you were being careful?

You know what I mean?

Yea I am said Derek.

Where is your friend anyway?

She left.

But that's not possable I was in the living room the whole time I would have seen her leave.

Um well she aaaaaa?

Where is she?

Nora ran around the room franctily looking ever where for this girl.

When Nora was looking under the bed casey ran out of the room. But to her suprise George was there. All he did was stair at her.

Go to your room casey I won't tell.

Casey ran to her ro all she was wearing was a sheet from Dereks bed.