It was a good enough answer for him. At least the giver hadn't meant him or Aziraphale any harm. In fact...

"You thought I'd be a trustworthy pet owner? Before anyone else in the Manor apart from Adam? Why on earth would you think that? I've never had an animal before. They usually flee before me. Chicago doesn't, though. She's a weird little thing."

Crowley grinned at the invitation, pulled off his jacket, and unbuttoned his shirt. It had been too long since he'd lain in the sun and something in his reptilian hindbrain enjoyed it very much. He wadded the clothes to use as a pillow and lay beside the beautiful demoness looking up at the faint whisps of cloud overhead.

"I like that title, though. You're welcome to call me 'Merciless One' any time you like. It's got a nice ring to it."