Jennifer Aniston and Justin Theroux received leis yesterday when they arrived on a private island in Hawaii. They're off on their latest getaway following her press tour in London for Horrible Bosses. Justin went along for the British fun, and after her premiere, she even met his cousin at the city's Shoreditch House. He was just on hand to watch Jennifer close an important chapter in her life. Jennifer had a going-away party Friday at her $40 million Beverly Hills home, which she recently sold in order to plant roots in NYC. She and Justin are apparently considering buying a smaller LA place to use when work brings them to the West Coast. Their tropical vacation comes just days before Justin's 40th birthday — he'll mark the milestone on Aug. 10. There's more traveling in Justin and Jennifer's future, too, since their movie, Wanderlust, will require promotion ahead of its October release.