Castle, Season 3

[Castle and Beckett had been captured, interrogated and injected by government agents the night before]

Beckett:
Those men knew who killed Marie and they refused to tell us.

Castle:
They also refused to confirm that J. Edgar Hoover liked to wear dresses.

Esposito:
[walking up and checking out the injection marks on their necks] Abducted by government agents, huh? [grins] Come on. What were you two really doing?

Beckett:
[rolls eyes] It's not a hickey, Esposito.

Esposito:
You both have one.

Castle:
I wish it was a hickey. [Beckett looks up with a small smile] It's from the injectors.

Esposito:
Is that what the kids are calling it these days?

Castle:
They were Men in Black!

...

[Ryan walks up to Castle, Beckett and Esposito]

Ryan:
Hey. Are those hickeys?

Esposito:
Yes.

Beckett:
No.

Castle:
I wish.