Lo Bosworth slipped on a bikini for a trip to the Four Seasons in LA today. She spent the day lounging poolside with her iPad. The second to last episode of The Hills aired last night, and though she's sad to see the series end, Lo has a new book and a website launching to look forward to once the final episode ends next week. Lo didn't strip down in time for our Bikini Bracket, but lots of her costars did, so cast your vote for Audrina, Stephanie, and more. Check out pics of her relaxing afternoon!