Lucifer Morningstar: You have to help me, doctor. I don’t want to be a monster.

Linda Martin: What’s wrong?

Lucifer Morningstar: It’s my wings. I hadn’t checked them since my devil face returned. I was afraid they might have gone. I was afraid what that might mean. What that might say about me. But earlier this evening I looked.

Linda Martin: And?

Lucifer Morningstar: They’re still there.

Linda Martin: That’s good. Isn’t it?

Lucifer Morningstar: I saw them. It was bad. It was really bad. I thought I could fix it so… So I didn’t hurt him. I stopped myself. So I don’t understand why. Why?

Linda Martin: Why what?

Lucifer Morningstar: Why are they still like this?!

(shows his wings, which are now demonic)

From Lucifer: Season 4 Episode 7: ‘Devil Is as Devil Does’ (4×07)