"You're not friends. You're family. In fact, you're better than family. You're like family that I actually like." Lucifer said this as if it were obvious. It was a well known fact (or if not, it should have been) that Lucifer loved Toby like he loved no one else.
"And Esther. I'm glad that I have your approval. I was afraid you wouldn't like me." He nodded to her and played the whole thing off as a joke, but there had been the genuine worry that she wouldn't. Not that he really cared who liked him, of course, but... he did.