Quinn: Hot stuff, fellas. Did I see a little tongue in there?
Lily: I don't understand.
Barney: Well, if these two will keep their sweaty paws off each other for half a second, I'll explain. It all started a couple days ago...
[flashback:]
Barney: I want you to meet my friends.
Quinn: Should I be nervous? Is it like bringing me home to meet your parents?
Barney: No, no, no. Much more stressful than that. You see, my friends, while awesome, can be presumptuous, meddlesome and downright destructive. When they learn what you do and how we met, they'll probably try to break us up.
Quinn: So let's have some fun with them. Mess with their heads.
Barney: Are you saying, evil plan?
Quinn: Hells to the yes.
Barney: My God, you're hot.
Quinn: Wait for it.