'Third Wheel' - Season 3, Episode 3
Ted has a chance at a threesome, but Barney and Lily conspire to wreck it. Meanwhile, Robin's date is going better than expected - until she requires a razor.
Air Date: October 8th 2007.
Lily: I cannot give up my bedroom to a boot thief. She should be punished, not rewarded.
Ted: Fine, then I'll try to work in a little light spanking.
Barney: (Talking about women with unshaved legs) Guys just want to get on the green. They don't mind going through the rough.
Ian: Hey, Robin, the valet just pulled my car in. I thought we could go back to my place, if you're in the mood for a nightcap.
Robin: Absolutely, I just have to go to the ladies room. I've got TB: tiny bladder.