He can hear people talking about the ball drop on the TV and knows Sasori's watching anxiously. He doesn't really understand the demon's interest in the new year, he doesn't seem interested in anything else, but Sasori just scoffed and told him that the end of something had to be respected, even if it was only a fragile human construct that he could tear apart with a flick of the wrist. Deidara's fairly certain that's what he did to the old shed that used to be in the back of the park, but he doesn't know for sure.
He's pretty sure his mom has the wrong idea (Except it's not the wrong idea because it's what he wants and he aches for it, but Sasori is Sasori and demons don't love) about his sharing an apartment with another man, but Sasori's a demon who doesn't know how to do some of the simplest things and he's not about to release him from their contract. Still, he feels like his mother would sigh with a little smile and say something about young love if she saw him carrying two flutes of champagne out to the little redhead (And he's tiny, he's not sure how the man seems so imposing when he's tiny and pretty and looks just enough like a young girl to be imagined in a schoolgirl outfit) sitting on the couch.
Sasori takes it without looking, eyes intent on the screen, and Deidara laughs. "It's not going to go away, you know. If you stop watching the TV, it'll still be there when you look back at it." But all the same he settles down beside him and pulls a blanket over both of their laps.
Sasori's eyes break away from the screen only long enough to glance down at the blanket, up at his face, and over to the fireplace as he starts a small flame with a snap of his fingers before he's looking at the TV again. "I know. But your human traditions change, it's interesting to watch. You're funny in the way you celebrate things." A bag of gummy worms materializes out of the air and he pops one in his mouth, chewing contentedly.
He really wonders if Sasori doesn't realize that his habits are all personal to him and he's never seen anyone put away sugary treats the way he does. He's not sure Sasori ever eats anything but junk food, he's never seen it, but his teeth are as white and shiny as ever and he really thinks he's got to do something to get Sasori's image of perfection to crack for a minute. Just one moment. "I thought the only things worth existing were things that would last forever."
Sasori regards him out of one eye, maybe contemplating his thought process, but then he turns back to the TV again and he's hit by a sudden frustration. He wants his full attention, doesn't like it when Sasori's attention is so obviously not on him. "Yes. But traditions may well last forever. Regardless, they're interesting." Maybe it is. Maybe Sasori's only using the TV to give himself space to think, but Deidara wants the full weight of those dark eyes that promise dirty things to be resting on him. Sometimes his feelings are way too intense for his comfort. He wonders if Sasori can feel them, just sitting next to him.
"We have a lot of traditions, you know." He starts, waiting for Sasori's noncommittal hum. When he gets it, he grins, because they're counting down on the TV and he knows what he's doing. "I could show you them, if you'd like." He can almost feel Sasori contemplating it, but he's given a nod of assent and that's all he needs.
He grabs Sasori by the shoulder and spins him, slanting his mouth over Sasori's even as he feels Sasori tense up against him. He knows Sasori's eyes are wide in shock or outrage, but he coaxes with his teeth and tongue until Sasori's soft and pliant against him and lets his tongue into his mouth. He can feel Sasori, after a moment, trying to reciprocate, and he's amazed to note that he's not good at this, he's clumsy and hesitant and Deidara wonders if Sasori's kissed anyone before, if there's ever been anyone in his long lifespan that he's allowed to kiss him so intimately. He doesn't think so.
Sasori goes from prickly and uptight to submissive way too fast. He clings to him like Deidara's the center of his universe and lets out little soft, pleased mewls that shouldn't be so arousing and he realizes that although Sasori likes to do things with his mouth, he's never been kissed like this, never realized that his mouth is so, so sensitive, and he feels a thrill to know something about Sasori before Sasori knows it himself.
And when he pulls back, it's way too satisfying to see Sasori's eyes hazy and his pupils blown wide. His wings are pressed down and his tail lifted up, the invitation for more is obvious. He can see Sasori's chest moving in silent panting, but he says nothing and Deidara realizes that he's embarrassed by his reactions, this doesn't happen often, but he still likes it and wants more of it. He grins. "Happy New Year…"
But apparently this is the wrong thing to say, because Sasori shoves him away with a lash of his tail and gets up, hissing something about him being an ass as he stalks out of the room. Deidara's not really sure what to think about that, he knows Sasori liked it, he sees Sasori's wings still pressed down, still giving control. "You don't have to be embarrassed!" The door slams. He wonders what he's going to have to do to get the proud little demon to understand he's not making fun of him.