Jennifer Aniston was on Jimmy Kimmel Live! last night to celebrate his new time slot. The duo are especially close after a recent New Year's getaway to Cabo with Jen's fiancé Justin Theroux and Jimmy's fiancée Molly McNearney. John Krasinski and Emily Blunt also went along for the trip. Jen and Jimmy reminisced about their time south of the border last night, with Jen sharing a few hilarious photos of the guys' spa day.