nealuchi | Paid with Interest

Title: Paid with Interest
Fandom: Bungou to Alchemist
Character(s): Kan, Dazai
Pairing(s): Kan/Dazai
Genre: Smut
Word Count: 825
Rating: NC-17
Warnings: None
Summary: Dazai hasn't paid back his loan, and Kan suggests a different way to pay it off. Dazai misunderstands, but with enthusiasm.
Notes:

Dazai is not a difficult person to read. Even if he was, staring at the inside of his wallet is not exactly the most mysterious of actions to interpret.

“Broke again?” Kan asks, leaning in behind him.

Dazai yelps and whirls to face him. “K-Kikuchi-sensei!”

“Kan is fine,” he replies. Sensei just feels so formal. “You need a loan?”

“No! I mean…” Dazai lowers his head. “I still haven’t repaid the last loan you gave me, S- Kan. If I asked you for a second now, I could never face you again… I’d have to throw myself in a river again…”

“I’m not expecting a repayment from when we were alive-”

“Doesn’t! Matter!”

Kan sighs. This is clearly very important to Dazai, but he knows Dazai well enough to know he’s never actually going to get the money to pay off his debt. Even if they don’t account for inflation.

“Well, you don’t have to pay me back in money,” he says.

Slowly, Dazai lifts his head. “Huh?”

“You’ve got plenty of skills.” He’s not one of Japan’s most famous authors for nothing. Some people would kill to have Dazai Osamu personally write them something: it’s certainly worth a few thousand yen. “You don’t need money to use those, right? Just pay me back that way.”

“Oh… oh! Of course!” Dazai lights up like a rising sun. “You should have just said so before! I can pay you back right now!”

Kan smiles. “That’s the spirit!”

Then Dazai looks around, and grabs Kan by the arm to nearly drag him to his room. This is kind of not as expected? Maybe Dazai wants Kan to watch him write to prove that he’s actually doing it right now, but watching the writing process isn’t all that interesting.

“Hey- Dazai-”

Dazai is single-minded, and seems not to be able to hear him until he’s pulled Kan inside his room. He shuts the door and… locks it? To not be interrupted? Does he really think Kan expects him to do this in one sitting-

The train of Kan’s thoughts comes to a screeching halt when Dazai kneels in front of him and reaches for his pants zipper.

“You should have just said this is what you wanted,” Dazai says as he pulls out Kan’s cock. “I’d have done this ages ago.”

Kan is frozen solid. He really, really needs to tell Dazai right now that this isn’t what he meant, that Dazai doesn’t have to do something like this just to pay back a loan - but Dazai starts stroking him, and all that comes out from his mouth is a groan.

“Can I tell you something?” Dazai asks, like Kan could possibly stop him. “I… might have thought about doing this, before…”

Oh.

Well then.

Kan takes a better look at Dazai’s flushed cheeks, at how intensely his eyes are focused on Kan’s cock in his hand, and decides that maybe he can wait a bit to tell Dazai what he meant.

Dazai works him to hardness quickly, before licking the head of Kan’s cock. Kan shudders, somehow unprepared for that burst of pleasure, and threads his fingers through Dazai’s soft hair.

“I normally don’t let people mess with my hair, but for you I’ll make an exception.” Dazai’s heated breath against his skin is enough to make Kan tremble. He licks a longer stripe down the length of his cock, flicks his tongue over the bottom of the head and smiles when that makes Kan moan.

He should probably not be loud, Kan thinks, the walls in the library are thin and Dazai’s neighbors-

Dazai wraps his lips around his cock, and Kan’s train of thought goes off the rails entirely. All he can do is gasp Dazai’s name as Dazai starts to bob his head, taking more and more of him in his mouth with each motion. Dazai’s neighbors can listen in envy for all he cares.

Dazai looks up, keeping eye contact with Kan as he hums around his cock. Kan curses as the vibrations pass through him, and tugs on Dazai’s hair harder than he meant to. Given the muffled moan he receives in return, he doesn’t think Dazai minds.

When he feels his cock bump the back of Dazai’s throat, he’s done for. He doesn’t even have the presence of mind to give a warning. Kan’s hips jerk once, twice, and then he comes in Dazai’s mouth.

Dazai swallows all of it, then pulls away, glowing like all of this was payment to him instead of Kan. He licks the remaining come off of Kan’s softening cock, then carefully tucks Kan back into his pants.

“Dazai…” Kan’s voice is rough, but he has to say something. “You know, earlier, I…”

“Yes?”

Dammit. He can’t ruin that smile. “That’s worth way more than what I lent you.”

Dazai ends up leaving his room with money in his wallet and a spring in his step.