Disclaimer: I don't own OTH. This fic is based loosely on a this fanfiction challenge:

'luke makes a bet with lorelai that she can't not flirt for a week.
she takes on the bet, and tries not to flirt for a week.
MAKE IT FUNNY.
NOT CORNY.
luke and lorelai MUST end up TOGETHER at the end ofthe story.
include some makeout scenes.
rory can be with either tristan or jess '

Now, on with the show!

The Bet

Lorelai sat at the end of the counter watching Luke as he went through his receipts for the day. She had come in moments before, ignoring his gruff voice as he clearly informed her that the diner was closed. She shrugged him off and sat down regardless of his protests.

The diner was empty, and the lights to the kitchen had been turned off. Luke was trying to concentrate on the task at hand, but was finding it difficult, as Lorelai hadn't stopped staring at him the entire time she'd been in the diner.

Realizing that her gaze wasn't going to get her coffee, she got up and moved down several stools until she was sitting directly in front of him. He glanced up at her for a fraction of a second before returning to his work.

"Oh Luke," she said in a flirty, sing-song tone. He sighed and put down the receipts looking up at her. "Can I have some coffee?" she asked with her biggest smile. He shook his head.

"I just cleaned out the pot," he said, returning his gaze to the receipts.

"But if I don't have coffee then I just wont have the energy to get me home. I'll have to stay here, and we both know you don't want that to happen," she said, leaning a bit closer, "I tend to talk in my sleep, and well, you just never know what I'm going to dream about. Especially when I'm in some hunky bachelors apartment." She finished with a grin worthy of the Cheshire Cat, which made Luke more then a little uncomfortable. He gathered up all of the receipts from the counter and put them back into the register before looking up at her.

"You can have some coffee," he said. She perked up, "At your own house. Now go on, I need to close up." Her smirk vanished.

"You're not really going to kick a caffeine starved woman out into the streets late at night with no hot beverage to use as a weapon against criminals, are you?" She put on her best 'Protect me' face, but Luke just rolled his eyes.

"It's late. Don't you have some kind of junk food marathon to start?" he asked, attempting to usher her out the door, not having the energy to deal with her antics after the long day he had just finished. She stopped short, nearly causing him to run into her. She turned toward him, a little closer then he would have preferred.

"You know, Luke. I've been known to do special favors in exchange to coffee," she said with flirty grin. He rolled his eyes.

"Lorelai…" he warned. Her faced turned to mock innocence.

"What? I was talking about cleaning the cup out myself. Why? What did you have in mind?" Luke sighed heavily.

"You know, it's kind of sad that you're willing to flirt with anyone for something like a cup of coffee," he said, crossing his arms in front of him. "I think you have a problem." Lorelai raised her eyebrows.

"Luke, we've already established that I'm addicted to coffee, and I like it that way."

"I'm not just talking about coffee. I'm talking about flirting. You're shameless," he said, barely hiding the grin on his face, knowing he was bugging her. She just looked at him, feigning shock.

"I am not a shameless flirt, Lucas," she said, punctuating his full name. He rolled his eyes.

"Last week you flirted with Kirk to get him to give you the last Danish. Yesterday you flirted with Tom so you could sit directly in front of me to annoy me, and then you proceeded to flirt with me to give you yet another cup of liquid death. In fact, you even flirted with the Clancy kid so he would rake your lawn for you. It's sad, Lorelai. Very sad."

"And completely effective," she said with a wide smile. Luke shook his head.

"I think you're so used to flirting to get your way that you might actually be incapable of using other methods of persuasion." Lorelai looked at him with her mouth agape. "What? Do you think I'm wrong?" she nodded, her mouth still open in shock.

"I am perfectly capable of using other methods of persuasion," she argued. He just grinned. "Oh, what? You don't think I can?"

"I've never seen it," he said, the grin never leaving his face. She gasped dramatically.

"I can't believe I'm hearing this," she said, not entirely joking. He just laughed lightly.

"Okay, you think you can get what you want without flirting for it?"

"I know I can," she said, confidence dripping from her voice. He raised an eyebrow.

"Fine, prove it," he challenged. She looked at him a second, her confidence faltering ever so slightly.

"What do you propose?" she asked, genuinely curious as to what his wager may be.

"I propose a bet."

"Being…"

"I bet you can't go one week without flirting." Lorelai laughed.

"One week? That's it?"

"That's it," he confirmed. She looked at him a moment, considering the bet.

"And what if I do it? What do I get?" he thought about it for a moment.

"Free coffee for a week," he proposed. She raised an eyebrow.

"As many cups as I want?"

"As many as you want."

"With no snarky comments about healthiness or death?"

"No snarking," he confirmed.

"And what if you win?" she asked, worrying about what he would want.

"If I win," he stopped, wondering what a proper punishment would be, "If I win you have to give up coffee for a whole week," he finally said. She looked at him incredulously.

"Are you serious?" she asked. He nodded. "You want me to give up on my life source for a whole week?" he nodded again. "Are you trying to kill me?" he just grinned. She looked at him unsurely for a moment, but pushed it aside, "Fine. I can do it," she said. He put out his hand to shake on it. She looked at it for a moment, still considering the consequence if she should slip up. Despite her better judgment she reached out and grabbed his hand, shaking it firmly. He laughed lightly when she did.

"This is gonna be fun," he said evilly. She lowered her eyes at him.

"You'd better buy a truckload of coffee, Mister. I'm gonna be milking my win for all it's worth." He just laughed. Finally, Lorelai turned and headed out the door, allowing Luke to lock up.

He wasn't sure what this week would bring, but he was certainly looking forward to it.

Hope you enjoyed it! Let me know what you think :)