Bellamy's been drinking, Clarke isn't thinking, and there's about to be a whole lot of mistletoe inspired singing.

Everyone is drunk. It's Christmas, after all, and their recent victory against Mount Weather is one they hadn't yet celebrated. Monty has outdone himself, pushing what he's calling eggnog on anyone who walks by. Really, it's just moonshine distilled with some nutmeg, but no one seems to care. Clarke stands off to the side, watching the festivities with a happy glow. They'd lost two people in the fight, one being Harper, and it hurt in a way that has become familiar. They go on, just like they always do, and just for tonight they drink their sorrows away.

"Hey." Bellamy sidles up to her, cheeks flushed. Clearly he's been into the moonshine.

"Hey." She smiles. When it was just the two of them responsible for the camp, they hadn't really been able to have much fun. Now, even if only temporarily, the adults could handle things for a night. They're free to indulge. And it looks like Bellamy is taking full advantage of that.

"What are you doing over here?" He asks, standing ridiculously close to her. She tells herself the blush that burns her cheeks is from the heat of the fire, and not his proximity.

"Just watching."

He turns towards the group, and she knows he understands. This is what makes it worth it, what they do, all the sacrifices they had made. As they watch, Octavia breaks off from the others and bounds toward them, something red in her hand.

"Hey, guys." She grins up at both of them, clearly already past tipsy. Bellamy's entire demeanor changes, that disapproving big brother frown making an appearance. Wanting to avoid an argument, especially tonight, Clarke tries to distract them.

"What's that?" She asks, pointing to the red fabric in Octavia's hand. Octavia looks down, like she'd forgotten.

"Oh!" She giggles, then tugs it onto Bellamy's head. "It's a Santa hat! Jasper made it." For a moment, all Clarke can do is stare at Bellamy, the pointed red hat dangling ridiculously over his ear. Then she bursts out laughing, a full, unapologetic cackle that echoes through the trees. She hasn't laughed like this in as long as she can remember. She tries to stop, sees the glare he's giving her, but somehow that makes it even worse and soon she's holding her side, howling with laughter. Octavia just giggles and flits away, like a fairy in the night. Bellamy continues to glare at her, but doesn't remove the hat.

"I'm… sorry…" She manages, in between gasps. "You just… look so…" Then dissolves into laughter again. When her laughter dies down into a weak chuckle, she chances another look at him. The annoyance is gone, replaced by something she can't quite put her finger on.

"You done?" He asks, dryly. She nods weakly. He's looking at her, really looking, and she's about to say something stupid when Monty pops up out of nowhere. He glances curiously at Bellamy before pointing upwards and smiling.

"Look." Is all he says, and they do, and the laughter burbles up again when Clarke spots a sprig of mistletoe hanging from the trees above them.

"That wasn't there before." She says, amused but also accusing. Monty just smiles mischievously and heads back to the party.

"Well." Bellamy says, grinning over at her, the tip of his hat flopped over in front of his face. "A rule's a rule." Clarke grins, and Bellamy leans over, pressing a quick kiss to her lips. He goes to pull away, but she catches his face in her hands, and deepens the kiss instead. His mouth opens in surprise, as she bites his bottom lip, and then he's pressing her urgently against a tree. They've both had just enough to drink that it doesn't matter that everyone can see them, it doesn't matter that this is a line they've not been crossing for a reason, doesn't matter that this changes things.

All that matters is that Bellamy's hand is on her waist, and then it's sliding down to cup her ass, and when Clarke moans his name into his mouth he answers it with a squeeze. But they haven't had that much to drink, and when she can hear the roar of a crowd over the blood pounding in her ears she knows it's time to pull away. She does so, regretfully, and as his hands fall away, so does the bubble, and it's like the cheers coming from the bonfire have doubled in volume. Catcalls, and whistling, and where the hell did Jasper find a bongo?

Bellamy's looking down at her, and in the reflection of the firelight all she can see in his eyes is black. That's the moment when it catches up to them, that this changes everything feeling, and she's surprised to find that it's not a bad one. He cocks his head, studying her, then slides an arm around her waist.

"It's too late to go back." He whispers in her ear. He's right.

Later that night, the singing starts. All it takes is Murphy singing one line, then the whole damn camp is full of it, the same song repeated over and over.

I saw Mommy kissing Santa Claus

Underneath the mistletoe last night….