Hi guys, first of all thank you very much for the reviews, they are very appreciated. And yes Janice, it is my first fic :)
Sorry, this chapter is rather short.

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Derek's POV:

I watch as she grimaces in Lizzie's direction.
'Come on space-case,' I say throwing myself into the chair by her desk, 'not got all day!'
Lizzie leaves, and Casey wrinkles her nose as I kick off my trainers.
'Ok Casey,' I say, putting my feet up on the desk, 'this betting thing was a fun joke whilst it lasted, seriously full credit to you, but now joke over, ok?'
'No.' She raises her eyebrows and I stare at her in disbelief. Why is this bet so important to her? Surely she's got better things to do. With that guy I heard her talking about with Lizzie.
'No.' She repeats, 'a bet is a bet.'
'You're joking, right?' I demand, 'tell me you're joking?'
'I expected you to refuse of course,' she says, walking over to the door and opening for me, 'so all you have to do is say 'alright Casey, I give up, I can't do this bet' and then you're free to go, and there is no bet.'
She is leaning up against the doorframe, and it's pulled her T-shirt up slightly, revealing the top of her hip bone, something that reminds me of last night's dream.
'De-rek!' she calls, pulling me out of my day dream. 'Admit that, and then you can go.'
I suddenly realise, all she wanted to do was get me to refuse a bet, something I never did. She didn't expect me to accept, and suddenly all I want to do it make her mad. To watch her cheeks flush, and her fists clench.
'I'm not going to say that.' I tell her, 'I accept the bet.'
'WHAT?!' She yells, and I know I was right, she wasn't prepared for the bet, she thought I would refuse.
'You heard me space-case,' I saunter towards her, 'I accept the bet.'
'Well I don't!' She shouts, moving out of my way as I push past.
'I've got a month, Case! This should be fun,' I laugh, as I walk to my room, 'see how long youcan resist the irresistible Derek!'

Casey's POV:

Typical. Really, really typical.
I try to put Derek in an impossible situation but it backfires.
I never expected him to agree, now he's going to, what, try to seduce me?!
This is really bad. I collapse onto my bed and moan.
'Casey!' Edwin comes into my bedroom and slouches in the same chair his brother did, reminding me how much he's becoming like him.
'Don't you guys knock?' I sigh.
'Casey, I need your advice!' He says,
'What is with everyone asking my advice today, go and ask Derek.' I tell him,
'Keep your hair on.' He shuffles back out of the room.
'It's going to be ok; it's going to be ok…' I repeat to myself.
Of course I can resist him for a month; I just avoid him as much as possible.
To take my mind of things, I decide to lose myself in a book. My plan is ruined though as my door is opened.
'Do you ever stop reading?' Derek asks.
'Will you ever start knocking?' I shoot back.
He stands in his sports vest and I give him a disdainful look.
'It's already dark and you're going to do sport?'
'No, I like standing around in my sports vest, it makes me feel like I'm doing sport when I'm not.' He grins and winks.
It's a clingy vest, and I feel the heat rise to my cheeks. Not good.
I throw the book aside, and push past him. His arm is warm as it brushes against mine.

Derek's POV:

She's blushing, and now pushing past me. I shiver as we pass.
'Edwin!' I yell towards his room upstairs. 'My room, now!'
By the time he comes in, I'm already lounging on my bed,
'You're getting sloppy Edwin.' I scold him, 'a full minute I had to wait.'
'Sorry Derek.'
'Right, and I've got a job for you.' I say, expecting to see his little eyes light up.
'Well, see I can't do anything right now…' He mutters.
'Why?' I demand darkly.
'I've sort of… got…a date tonight.' He stutters.
'You little traitor!' I jump up, and chase him downstairs.
'Coming through!' He yells pushing past Nora, and darting into the kitchen.
Marti and George complain as we run in front of the television, and Casey swears as we dart past her, which she only ever does when she is in a bad mood.
He runs back upstairs, and somehow to the little weasel manages to push under my arm when I corner him in Casey's room, and he hurries back towards the stairs.
Then the hilarious happens.
He trips on Marti's Barbie on the second step, and flies, hands outstretched, towards the ground. Casey's who is coming up the stairs with a glass of milk, gasps as he hits her legs, and topples over with him, drink pouring down her shirt. They both land on the carpet at the bottom.
I don't attempt to conceal the fact that I am laughing my ass off.
'DE-REK!' Casey screeches milk all over her shirt.
'CLASSIC!' I gasp, clutching my sides and sinking to the floor, 'if only I had my camera!'
'De-rek! This is not funny!' She yells at me, fist-clenched.
'The return of Klutzilla,' I say, 'the milked!'
'Milked isn't even a word, you freak!'
She pushes past me angrily, red-faced and beautiful.

Please review and tell me what you think!
Jess.B.M