Dean had to fight the blush that threatened to cover his face when Lucifer called him out on his lie. Of course the archangel could tell he was lying. And of course he just had to tell him that Cas knew all along and was purposefully ignoring it. That hurt. His heart clenched a little bit and his step back faltered a bit. It didn't matter though, he was where he needed to be.

"No, I don't think You are sexy." The fact that he finds Cas sexy remains unsaid and Dean takes a moment to watch him before jerking sharply to the left and breaking into a flat out run. He needs to get deeper into the bunker, if he can reach their panic room he might be able to wait it out until Sam comes...or Lucifer gets bored.