I am cold and tired, so have an almost-drabble.
Uriel dragged book and blanket over, curling up at Lucifer's side. "So warm," he murmured.
"Comes with the territory," Lucifer replied. Then, "What you need is a bed."
Uriel looked up in confusion. "Why? I do not sleep."
"There are plenty of things to do in a bed that don't involve sleeping."
"Such as?"
Lucifer sighed. Angels. They would be the death of him, one way or another. "Winter is coming. It's beautiful, but harsh. I know you, you won't like it. You'll want somewhere warm to stay."
Uriel nodded. "True. But this will do for now," he replied, contented, complacent.