Lily attempts to join the group of woooo girls, but when she lacks the necessary cowboy hat she rocks a firefighter hat she got from fire safety in school. Hawt.

Marshall and Lily have a tradition when they pick each other up at the airport, one wears a chauffeur hat and carries the sign while the other arrives with a six pack. Here's Lily with Aspen Yard's Ale.

Lily is competing in a hot dog eating competition and the official count down clock has begun! Time is ticking!

Marshall, Ted, Robin and Lily all stand outside the house in "The Stinsons." In this episode, the guys meet Barney's wife and child they never knew existed.

Marshall goes to grab Lily's stomach after her hot dog eating competition and looks to be freaking out while Barney laughs.

Lily jumps up to celebrate after the hot dog eating competition revealing her new belly. Now sure we all know this is because Alyson Hannigan is pregnant, but man that's funny!

Lily puts Karen (Laura Prepon) to the porch test and she fails miserably when she won't play bridge with their future old selves. She'd rather be reading a book of course.

A vision at what America's perfect couple, Marshall and Lily will look like when they get old and sit out on their porch that overlooks the beach.

Sure Robin passes the porch test, but Lily sabotaged Ted's relationship with Robin. Why? She didn't want to lose her as a friend of course.

There's nothing like an older version of the group (Ted, Marshall and Lily) playing their own made up version of bridge. Don't worry, they'll take a class. It's important to stay active.

Barney manages to scare of Lily for the next four weeks when he tells the peanut butter versus jam joke. While we never get to hear the punchline we do get to hear a funny way to hide Alyson Hannigan's maternity leave.

Alyson Hannigan plays Lily Aldrin, Marshall's live in girlfriend, then fiancee, then nothing, then fiancee, and then wife! Lily is a kindergarten teacher, aspiring artist, and mother to the group.