This is the worst impromptu bachelor party while on case ever!

We're not going to be seeing Carrot Top tonight, are we?

Trust me, you do not want to start a marriage with a family feud.

It's almost like the thought of marriage fills him with an impending sense of doom. Oh wait, that's me!

Let's not let a little thing like murder get in the way of having a good time.

The last time I saw you in your pj's after eight am I think you were four.

Even as a hostage I help you solve murders. Beckett, I think you have the perfect partner.

Why Doogie Howser? There is so many cool TV doctors. Dr. House...Dr. Shepherd...

Castle: Tell me you need me.
Beckett: Excuse me?

Any relationship that lasts longer than a breath mint is going to have challenges.

You? Skepticus Maximus?

Beckett: I'm sure there's a perfectly good explanation for all that.
Castle: There is...they're here!

Castle Quotes

I can't help it if you got off by putting things in my mouth.

Beckett

Beckett: (Clears throat) Ahem. What's the deal with men and boobs, anyway?
Castle: Biological. We can't help it.
Beckett: But doesn't it bother you that they're so obviously not real?
Castle: (Pauses) Santa's not real. We still love opening his presents.