Castle: You believe me?
Beckett: I never stopped.

Did I throw a party and forget again?

Whoever did this...he liked it.

Who puts a body on the ceiling?

We're Caskett. Which is good since the whole murder thing!

Why do people care about Brangelina?

Suspects tend to hold back on stuff like that.

Beckett: I can't help but wonder how many other girls have gotten this tour.
Castle: I'm not going to deny that I have brought other women up here. But, none of them were you.

Beckett: So, you rich or something?
Castle: I'm not James Patterson rich, but I do ok.

You're in a room full of detectives and not one of them has a clue.

Castle: I so wish I could kiss you right now.
Beckett: Yeah, I know.
Castle: This is me, softly touching your face, pulling you in for a long slow kiss.
Beckett: This is me, kissing you back, running my fingers through your hair.

The butler did it!

Castle Quotes

I don't get it. He's into you and your determined not to give into these feelings that you clearly have for him. So he fantasizes about you through his writing. It is literally verbal masturbation.

Natalie

I can't tell you how many times I've had dreams of being on this very ship.

Beckett