Kiss the Doctor!
Torchwood 2.1: Kiss Kiss Bang Bang
Captain Jack Harkness: How are you, Ianto?
Ianto Jones: All the better for having you back, sir.
Captain Jack Harkness: Could we maybe drop the "sir" now? I mean, while I was away, I was thinking. Maybe we could, you know, when this is all done: dinner, a movie...
Ianto Jones: Are you asking me out on a date?
Captain Jack Harkness: Interested?
Ianto Jones: [scoffs] Well, as long as it's not in an office. Some fetishes should be kept to yourself...