Rooftop party. Goat petting. Lily asks if they can keep the goat. Marshall is not at all about that and would rather have his mental patient uncle come over if they want to live with someone who sheds and shits all over the place. Lily brings up that Robin slept with Barney and it's not very smooth. Marshall couldn't take the pressure anymore. Lily says that's so gross. Then she asks if it was amazing. Robin doesn't want to talk about it. Lily says she's curious because it's Barney and all. "Did he have devices and stuff?" she asks. "Hot wax? Did he tie you up?" Marshall and Robin are both shocked and Marshall asks what's wrong with her. "Was he all smooth down there?" Lily asks after a pause. OMG. With Lily next to the goat and everyone whispering, it's pretty funny.

Limo. Ted is bitching out Barney for sleeping with the one woman out of three billion on the planet that he's had a long relationship with. Barney says he's horrified at what happened. Ted wants to know how it happened. "You mean... what position?" Barney asks. They start wrestling. Ranjit lowers the windows and cheers for Ted to hit Barney. Barney offers to let Ted hit him, anywhere but in the face. Ted punches Barney in the sack. Barney screams. "Who punches someone in the groin?" he asks. He finally decides he deserved that. He's happy to be past this. Ted says it's not just about Robin. He says he's seen Barney do some bad things to a lot of different people. Ted says he always thought he was Barney's limit. He asks if this isn't one of the Bro rules. "Yeah. And I broke it," Barney says, sadly. He says he's sorry. Barney mentions the Bellagio again. Ted says he's not going to Vegas with Barney to ditch his friends and girlfriend and hang out at some strip club. Ted brings up the box of stuff he has no more use for. "What does that mean?" Barney asks. Ted says that maybe Barney belongs in the box. Barney asks if Ted doesn't want to be Bros anymore. "I'm saying I don't want to be friends anymore," Ted says. Barney says this is going to ruin Vegas. Ted tells Ranjit to stop the car. Ted gets out and goes to look for a cab. Close-up on Barney. He looks devastated.