Quote from Lily in Swarley
Robin: She's hot? I'm so sorry. Lily: No, it's fine. It just makes things easier. Now that I know she's a threat, all I have to do is keep Marshall from ever seeing her again. Okay, I have two plans, you can help me choose. Plan A, remember that time Marshall and I had sex in the bathroom? Oops, I got knocked up. Robin: Lily. Lily: Okay, plan B is called "Chloe's Accident." Robin: Just stop.