Barney: See? If I had a room here all I have to do is get them upstairs. Come on, guys. It'll be great! We'll come in after you guys are asleep and I'll be gone before you wake up.
Lily: So, you get to have sex and we get to wake some skanky girl up in the morning and kick her out?
Barney: God, Lily. Some guy just told her that he loved her then pretended to go to the bathroom and never came back you can't make her a cup of coffee? Real nice.