Barney's place: The doorbell rings, and Barney answers to find two bikini-clad beauties explaining they were just having a "Who's hornier" contest (oh, Show). They say they spilled massage oil all over themselves, compliment Barney on his jammies, then ask to use his shower. Barney smiles and nods at the camera. Cue the music.. We flash forward to...

Dowisetrepla: Ted says that's not a memory, it's a porn movie. Lily starts to say specifically which porn movie when she remembers herself. After the boys catch her drift, Barney makes his point: it could happen. Right. He contends that if he didn't look his best all the time, he'd regret it. Marshall rises and tells Barney his suit pajamas are the most ridiculous jammies he's ever seen. Then he removes his plaid robe to reveal his... nightshirt.

Barney can barely contain himself. "Marshall's wearing a nightgown." He takes his own pulse. "Marshall's wearing a nightgown. Hey guys, you know how in the future we're always saying, 'Remember when Marshall wore a nightgown'? THIS IS THAT TIME!" Bravo, Show. That's such a great moment on a couple of levels. The first is, obviously, NPH. Again. The second is Barney's nod to the series' conceit. The third is that, remember, Ted is telling this story to his children in 2030, so he probably inserted those lines in Barney's mouth by way of explaining this Uncle Marshall story they'd only been half-hearing until now (or I guess that's "now"). Marshall's calm response (that it's just a nightshirt) is the icing on the cake. Barney says Marshall can call it a "Ninja star danger jock if you want. Doesn't make you any less of a cross-dresser." Marshall doesn't care how many manly-man words Barney strings together to mock him. He's all, "Whatever, dude. It's comfy." So of course, Barney must go off on a tear. Never you mind him, Marshall. Self-confidence is sexy.