[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.
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.
[ 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.
http://www.tv-quotes.com/shows/castle/quote_23932.html