The Simpson-Wentzes

Friendly exes Pete Wentz and Ashlee Simpson prove co-parenting son Bronx Mowgli is still easy as 1-2-3

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TO THE RACES

Vroom-vroom! Rocker pop Pete Wentz and his towheaded tyke Bronx, 2½, toy around with some miniature racing cars at a park in Sherman Oaks, Calif., on July 16.