It wasn't hard to be Castiel, to growl softly against Dean's throat and pant a little harder, as though it really made any difference to him at all how hard Dean was, how eager, or how much he enjoyed it; as though he even breathed.

But he pushed his finger in, letting the slick moisture slip about the outside, and following up with another finger just a moment later. It was a lot to ask Dean for, especially with his pants still mostly on, especially considering he'd never been put through anything like this before.

"It's okay," he murmured, in Castiel's tone. "Relax, I'm not going to hurt you."