Crowley's gasp is rather more pronounced this go round; only a little louder, but much sharper on the inhale, and much shakier on the exhale. He doesn't get all the way through Aziraphael's name this time, either, but his back arches again as he tries, and his toes (against the angel's thigh) curl sharply in the fabric of his pyjama bottoms.

(It gets the message across.)