"Hey," Lucifer said to Kate, not hiding the fact that he was taking in what she was wearing. "It's hardly my fault that you have excellent taste. I'm here to shop."
Turning his attention back to Castle, he shook the other man's hand firmly. "Yes, well, don't worry that the image of your wife in that particular ensemble won't be leaving my mind anytime soon. She's been a really good friend to me and I have zero interest in messing that up." He flashed Castle a grin. "So you're the famous mystery writer, eh? From day one she wouldn't shut up about you to the point where I feel as though I know you already."