"Slander," he says, matter-of-fact, and manoeuvres himself around until he can duck past the curtain of dark wings above them and plant a kiss on the back of Crowley's neck.

"And, mm. Libel. I'm just trying to improve my 'powers of retention,' as you said."

As he speaks - between words, in fact - he trails kisses and tiny nips of his teeth down Crowley's spine, long and straight and inviting.