You do realise that I don't know the show well enough to be writing even snippets?

*squees* But you do it so well! Casey and Dan adorableness! Total adorableness!

This was a wonderful thing to wake up to. *hugs you hard*

He raised his eyebrows in amusement as he knocked rapidly, four sharp taps, his trademark knock.

Aw, Dan has a trademark knock? Don't ask me why, but I love that detail.

A red and white gingham apron (and he had to have bought that for himself, because he couldn't imagine Lisa ever wearing that, not in a million years)...

*sniggers* Oh, I'm just imagining Casey buying that...

Casey looked down in horror. Dan tried not to smirk: Casey had clearly forgotten that particular sartorial delight.

Hee!

And now Casey was going cross-eyed trying to see if there really was flour there or if it was Dan being Dan.

*cracks up* That's such a cute mental image. Casey going cross-eyed, with his floury nose and gingham apron. For a manly sportscaster, Casey can be adorably domestic.

"You'd better not be calling me your mother. Not that I have anything against your mom, but still. Not a good comparison."

"I'll try not to get confused and call you mom." Casey glowered at him, but Dan blithely ignored him. "So, back to the important issues. What are you baking for me?"

There's something about the "I'll try not to get confused and call you mom." line that sounds a bit awkward to me. If you get time, maybe think about replacing it with another similar insult. It just seems a bit... obvious? Wordy, maybe. I can't put my finger on it, but it was the only bit that made me pause for a sec.

and hence there was pain which lead to swearing. Justifiable swearing."

Hee! Very justified. (Sidenote: shouldn't there be a comma before which?)

Oh, I totally loved it!