"No."

"Please?"

"No. Absolutely not."

"But it's so important to me! Please?"

"I've told you twice, and now I'm telling you again, there's no chance whatsoever."

"But Doctorrrrrr!"

"Rose Tyler, have you gone deaf and lost your memory? You know perfectly well that I--"

"Don't do domestic, yeah, I've heard," grumbled Rose.

"No, I don't," said the Doctor. "And no amount of pleading—or even making that face!—is going to get me to change my mind."

"Fine," said Rose. "I'll do it myself. I'm sure the TARDIS will help me. She likes me. She never even shocks me."

The Doctor glared at her. She'd added the last words just as a spark had leaped from the console to his hand. Rose stuck her tongue out and flounced off to the kitchen, smirking.

"Oh, all right," he said behind her, sounding defeated. "Ow! Stop that, I'm going!"

He came into the kitchen, running his fingers through his hair to make it lie flat after the TARDIS's sparks. He failed dismally, but Rose didn't tell him. Secretly, though she would never in a hundred years admit it, she thought he looked cute that way.

"I hope you're happy," he said.

"I am," she said, smiling sweetly up at him. "Now come on, let's get to work."

He began opening everything in the kitchen. "What do we need?"

"Close the refrigerator," said Rose, shutting it for him. "I don't know. TARDIS, why don't you show us a recipe?"

She grinned, knowing at least one ingredient they would need for anything the TARDIS would come up with. The Doctor put on his glasses and looked at the screen, and his face lit up like it was Christmas morning already. Rose laughed.

She got out the materials. He got out the ingredients. She mixed and poured and stirred and blended. He handed her everything just when she needed it. She guarded the bowl and the cookie tray jealously. He tried to steal some of the dough, never mind that there were eggs in it and it wasn't healthy to eat raw eggs. All the while, the TARDIS alternated between the sides, sometimes helping Rose, sometimes the Doctor.

Eventually, Rose managed to get the trays in the oven, and the TARDIS refused to let anyone open the oven before it was time. She'd won the battle. The Doctor looked put out. "I do get a cookie when they're done?"

"Of course you do," said Rose.

When the cookies were done, she did give him two. But she didn't tell him where she'd hidden the rest of them until Christmas Eve.