People magazine has struck a deal to pay Jennifer Lopez and Marc Anthony $6 million for the first photographs of their twins, said The magazine paid Christina Aguilera $2 million for this week’s cover photo of the singer with her newborn, Max, said, and $1 million for a shot of Harlow, the newborn daughter of Nicole Richie and Joel Madden. Editors said the latest round of spending is only a warm up for an eventual photo of Angelina Jolie and Brad Pitt’s next child. “I can’t even put a number on it,” said Katie Caperton, a deputy editor at OK! magazine. “That’s huge.”