"Are you sure this is a good idea?", asked Aziraphale nervously.
"Please, angel. What could possibly go wrong? All you have to do is open your wings in time", said Crowley and, before the angel could tell him exactlywhat could go wrong [1], vanished their clothes with a snap of his fingers. [2]
The two of them were standing on a huge, u-shaped glass platform protruding into what was commonly known as the Grand Canyon. Only hours before the platform had been crawling with tourists but now – at midnight and new moon – their only company were billions of stars sparkling in the pitch black sky above them. Illuminating what, in Aziraphale's opinion, was one of the masterpieces of divine creation. Even Crowley had had to admit that a name like "Grand Canyon" did not quite cut it. It truly was a magnificent place and they would get to see all of it.
There was a whooshing sound when an enormous pair of soft, feathery wings spread out behind Crowley and then another as Aziraphale followed his lead. They took up position on the high railing designed to keep careless tourists from plunging to their death; balancing precariously or, in Aziraphale's case, by miracle.
The angel peered over the edge. Some distance away the Colorado River glittered invitingly.
"Why do we have to be naked again?", he asked. He'd still not quite understood this point.
"Because", said Crowley and Aziraphale sighed.
"Ready?", asked the demon.
"Ready", said his companion.
"On count of three then", said Crowley. "Actual three", he added, in order to clarify. [3]
The angel nodded and clasped Crowley's hand.
"One", he began counting.
"Two", followed Crowley. They folded their wings.
And with a raucous "THREE!" they let themselves fall forward, dropping head first into the cool night air like two large, winged and vaguely human-shaped stones.
There were whooping sounds.
.
.
[1] It was a long list and involved several unpleasant ways of inconvenient discorporation.
[2] The finger snapping wasn't strictly necessary, but it added a dramatic flair and Crowley had always liked dramatic flair.
[3] Being a demon, his usual modus operandi was to cheat, i.e. to count "One...three!", a fact of which Aziraphale was of course well aware.