Disclaimer: I don't own any character from Supernatural, but if I did, Dean would never ever die. Or leave my bedroom. Also, this story has absolutely NOTHING to do with any song by Hoobastank, but if it did, I wouldn't own that either.

Author's Note 1: Dear writers of Supernatural,

You are not Joss Whedon. As such, you have no right to screw with me and my favorite couples this way. I mean, honestly, I forgave you for finally playing a song by my favorite band while having a heartbreaking moment and then killing a good character. I forgave you for that. But killing Jo right after she and Dean finally kiss? That is not and will never be okay. I am disappointed in you, you sadistic bastards. So please don't blame me for righting such an injustice.

Much love, and just a little bit of burning hatred,

Heather

Author's Note 2: This could be a oneshot. Or it could turn into a multi-chaptered fic in which I, as mentioned in the author's note above, right certain wrongs. As a fic writer, that is my favorite thing to do, after all. So if there's an interest, this will be expanded into a larger story. If not, it stops here, and since I never actually intended to write Supernatural fic anyway, I'll count it as an interesting adventure. Up to you!

The Reason

"Are you giving me the end of the world speech?" Jo asked. She sounded almost amused, but if he looked at her hand, he'd notice that she was nearly breaking the beer bottle she was holding. Of course, she thought. Now he wants me. When he knows he'll never have to commit if we're all dead tomorrow.

"What? No." Dean laughed, charming to the core. "No. If I was, would that...would that work?" He had to admit, as far as pick up lines went, 'I'm going to die tomorrow and you could be my last good time' worked really well. But this was Jo. That had never been the plan with her.

She considered messing with him, but decided against it. He wouldn't hit on her without meaning it, so teasing him about it might not work out so well for her if they lived. So she kept it simple. "No."

What? As far as he knew, she'd always had a bit of a thing for him. Unless he was reading the signals wrong. "But I thought..."

"You thought right," she admitted, guessing the source of his confusion. "But in case you hadn't noticed, I'm not exactly the girl you can just have sex with and then sneak out on in the morning. Those other girls...they want you because you're sexy and charming and, just a guess here, really talented from all the experience. They don't really know a thing about you. So, if the day ever comes when you and I...it has to mean something. To both of us."

"It would," he told her. "Of course it would. Jo, I'm not hitting on you because I just want to get laid on my last night alive."

Jo looked surprised. "You're not? I mean, you don't?"

"What? Well, yeah, I do. But that's not why. It's because I don't want to die, uh, again, without ever having been with you." Dean hadn't been intending to admit that at first, but what was the harm? If there was ever a time to be warm and fuzzy, this was it.

"Another pick up line?" she asked.

He shook his head. "No. That's just honesty. Because I know you're not a girl I can happily part ways with in the morning, never to think of her again. That's why I haven't tried it before. Because I know that I'd have to leave in the morning. Or soon enough, anyway. This life...I can't settle down until I know there's nothing out there trying to end the world and skin me alive. Not necessarily in that order."

"So," Jo said, putting down the beer on the counter. "Let's go with more honesty here. If we were together tonight..." she trailed off, allowing him to finish the sentence.

"And we won tomorrow, I'd still have to leave a whole hell of a lot sooner than I'd like. Because I can't just sit at home and watch the demons destroy this world. But it could never be meaningless. Not with you. And if we died tomorrow, at least I wouldn't have to go knowing that I wasted my last chance."

Jo considered him for a long moment. He was right. She didn't want to go to her grave – or, more likely, her pyre - knowing that she had never been with the only man she'd ever really wanted. As much as she didn't want to have sex with him because they were all going to die, she knew that that wasn't her only reason, and apparently, it wasn't his either. But she had to be sure. "Dean, I need you to swear to me that, if we live through tomorrow, you're not going to treat me like one of your floozies and quit calling me back just because you got what you wanted. I understand that you can't stay, and I know I won't be the last girl you'll be with. Life on the road is hard; I know that just as well as you do. But I don't want to lose any chance we might have in the future just because the novelty is gone for you."

Dean looked into her eyes. "Jo. If you were just any other girl to me, we would have had sex years ago. And if this were just about getting laid my last night, I would have no problem going out tonight and finding other...company. But even if you turn me down, I'm not going to do that. I just want to make sure you understand that, while it will mean more to me than almost any other...encounter, I still can't stay in the morning. If we live."

She nodded. "I understand." She thought about it for another few seconds. "Let's go upstairs." She took his hand and started leading him to the stairs.

"Just what in the blue hell do you think you're doing?" Ellen asked loudly.

Jo blushed. "Dean and I were just going upstairs to...discuss strategy."

Sam snorted, but didn't comment.

Her mother shook her head. "Honey, if you're going to be doing what I know you're going to be doing, the least you can do is learn to lie better about it." She shifted her gaze to Dean, who was looking very uncomfortable. "You hurt my girl, you know I will have your delicate parts for my Christmas ornaments, right?"

Dean only barely managed to resist covering himself in defense. "Yes ma'am."

"Good. Long as that's clear." Ellen waved them away, and they ran upstairs before any of the others had time to make threats or talk them out of it.