"Remus," Sirius says as Seriously as he can.
He finally looks up, his face calm. "Yes?"
"I said listen."
Remus blinks twice before responding. "I am."
His cover is shot when he attempts to turn a page without snickering. Sirius catches this, and throws himself onto Remus's bed, slapping the book from his hands.
"Not funny!" he complains (Remus is laughing). "Listen!"
In an unplanned moment, Remus leans up and presses their lips together. When they part – exactly four seconds later – Sirius is stunned.
"Listen," Remus tells him.
Sirius nods dumbly, and lets Remus place warm hands on his face.