Should Shiloh et al start getting ready for another little brother or sister?

During her humanitarian visit to Tunisia on Tuesday, Angelina Jolie showed off a new tattoo on her left arm -- one which ignited fresh speculation that she and love Brad Pitt may adopt a seventh child.

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The world-famous mother already has her arm stamped with map coordinates that correspond with the birthplaces of her six kids: Maddox, 9 (Cambodia), Pax, 7 (Vietnam), Zahara, 6 (Ethiopia), Shiloh, 4 (Namibia), and twins Vivinne and Knox, 2 (France). New to Jolie's arm beneath those coordinates on Tuesday: A seventh set of map coordinates, suggesting, perhaps, a seventh little one, and a fourth adoption for the couple.

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As Wonderwall points out, only the first number on on the bottom line is legible: 35 degrees north, which could be Algeria. Or, more locally, Oklahoma, birthplace of her Pitt, 47.

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"I'm always open to children around the world," Jolie said in February 2010 during a trip to earthquake-ravage Haiti. "We're that kind of family. Brad and I talk about that. But that's not what we're focusing on at this time, by any means."

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