Robin: Barney, do you want to come back to my place?
Barney: Your place? [Robin whispers in Barney's ear]
[later in Robin's apartment:]
Barney: Are you sure you want to do this?
Robin: Yeah. I am. Let's just not tell anyone about this, okay?
Barney: Of course. So, should I just put it in?
Robin: Yeah, why not?
[Robin plays the music video]