Kate Bosworth took a dip in the ocean with a friend in Mexico yesterday. She's usually covered up in the latest trends, but Kate let loose without her bikini top to lounge under an umbrella and read alongside pal Cher Coulter. Her skimpy beach look was also sans accessories, despite Kate having her own jewelry venture with Cher, JewelMint. Mary-Kate and Ashley Olsen took a cue from Kate and Cher with the recent announcement of their plans to launch StyleMint. Kate might have the chance to chat with the sisters about their new website at tomorrow night's New Yorkers For Children Benefit Gala, which Mary-Kate and Ashley have attended in the past.