Oscar-winning actress Angelina Jolie has hinted that she may adopt another child, adding to her brood of six children with partner Brad Pitt. Jolie, who in July gave birth in France to twins, a girl named Vivienne Marcheline and a boy named Knox Leon, has said she sees no reason to slow down despite her growing family. "One day (the children) are probably going to want to stay in one place for a very long time as they get certain friends," she said. "But, you know, so far we've just moved them a lot, and they like moving. They like packing their bag before the next adventure, and they like making new friends wherever we go," Jolie said. "And I think part of it, we'd like to maintain that," the 33-year-old actress said. "We'd like them to be those kind of adults where they can find home wherever they are in the world and they can find friends wherever they are in the world." In addition to the twins, Jolie and Pitt are parents to four other young children - adoptees Maddox, Pax and Zahara, and their first biological daughter, Shiloh. And Jolie has said she and Pitt were considering adopting still more. "It depends," she said. "I mean it's important ... you can't adopt, you can't even start the process until any new children are six months old to understand how the new family has settled." But Jolie said that her children were now getting used to new arrivals and "are not really stunned anymore when kids come home". "You know, somebody asked how (seven-year-old) Mad was doing and you know he's just, he's a professional big brother, he's done it so many times," she said. "And we prepared them, we talked to them about it, they knew it was coming, and they are all just at that great age that they aren't threatened, that they are independent enough not to need mommy and daddy all the time," she said.