Stuck Together
Aziraphale handed over the holy water. Crowley took it from him, his hands more gentle than necessary in Aziraphale's opinion. "I'll give you a ride angel. Anywhere you want to go."
"You go to fast for me Crowley…"
There was a moment of silence. "I should go." Aziraphale made a move to open the door but it didn't budge. "Really Crowley? Why did you lock the door?"
"I didn't? Sometimes the Bentley has a mind of her own and acts up."
Aziraphale shook the door again and it stayed stubbornly closed. "I guess we're stuck in here together then…"
"Am I going too fast angel?" he asked suddenly. "Because it's been nearly six thousand years and I thought that by now…" He trailed off.
Aziraphale frowned. "I'm not sure I understand."
"I mean we've been friends for so long and after what happened when we met during the war, I had assumed. Oh Satan. I assumed that we were… This is so embarrassing." Crowley buried his face in his hands.
"That we were dating?" said Aziraphale quietly.
"Kinda yeah. I feel stupid now."
Aziraphale paused for a second. "We could. Date I mean? I'll admit that I have had a thing for you for a while."
That's how the two of them got together after six thousand years, all with the help of Crowley's Bentley.