Crowley could hear the fear in Kol's voice, but didn't comment on it. Because frankly, anyone who wasn't scared of Lucifer was a moron, and it made Crowley a little glad that he didn't have a moron in his bed. "None of us do. Not sure how to keep him out though." Part of him wished he could be somehow comforting, but he had never been the type to offer false platitudes and he wasn't about to start now.
He didn't need to look at Kol to know there was a frown on his face, that the vampire was shocked, and maybe afraid. Again, smart. But demonic hearing could sometimes be a bitch, and Crowley wished (and wasn't he doing far too much of that lately) that he hadn't heard the request, that he could pretend it hadn't existed, that Kol was fine with the brush off that it wasn't going to happen.
Instead he had to turn his head sharply to look at Kol, a deep frown on his face. "You want to see it? Seriously? Why the hell would you want to see that?" Why would anyone want to see it, even if it was nothing more than Crowley's imaginations and fears. They were fears based on experience, and that made them feel quite real and quite vivid. There was a high chance Lucifer didn't even need to poke around in Crowley's mind, he could just get to the deep paranoia on his own.
There was frustration and concern on his face and in his voice, and the fact Crowley couldn't even be bothered to cover it spoke volumes. "If you really want to see it, then fine, see, but once you do, it can't be unseen. Can't even be compelled out of your memories, you Original idiot."