To the Secret Service, Barbara (left) was Turquoise, and Jenna (right) was Twinkle, but the Bush twins, 30, prefer calling each other Sissie. “We go through every stage of our lives at exactly the same age,” says Jenna Bush Hager of her “built-in best friend” Barbara. These days, the two live in Manhattan “one subway stop apart” but prefer to bunk together when they visit their parents in Texas—just as they did when Mom and Dad lived at 1600 Pennsylvania Avenue. “We had rooms right next to each other,” recalls Jenna, who married Henry Hager, a former aide to Karl Rove in 2008, “but we usually ended up sleeping in my room.” Jenna, a former teacher, is now a correspondent for the Today show, and Barbara heads the nonprofit Global Health Corps. Though the onetime First Sisters joined their father on the campaign trail in 2004—and Barbara came out in favor of gay marriage this past February—“we’re not really political people,” Jenna insists. “We’re interested in policy, not politics.” When we spoke to Jenna, she was on her way to Los Angeles to interview Ozzy Osbourne—though just what she planned to discuss with him, she wouldn’t say. Family values, perhaps?