In Plain Sight, Season 2

Marshall:
I'm not giving you the name of the first girl I had sex with.

Mary:
Why? Is it because you're a virgin?

Marshall:
No, because you'd track her down, call her up, and make her tell you all about it.

Mary:
So? I told you mine!

Marshall:
Neil Armstrong was not your first.

Mary:
Technically, no, but who can ever remember that other guy's name?

Marshall:
Do you care that Stan is two hours late for work and unreachable?

Mary:
Of course I care! This is how I cope. Come on. You know I won't stop until I get what I want.

Marshall:
Oh, God. Fine. Katinka Magnúsdóttir. Tenth grade foreign exchange student from Iceland.

Mary:
Katinka?! Excellent!

Marshall:
Tell her I said hi.

Mary:
How do you spell Magnúsdóttir?

Marshall:
The usual way.

Mary:
Jesus, Mary and Joseph. There's like a thousand K. Magnúsdóttir's. I swear to God, if that's not her real name...