Angelina JolieAngelina Jolie and Brad Pitt will marry on the spur-of-the-moment when they decide the time is right, according to a source close to the family.

In a recent interview with the Italian edition of Vanity Fair, Angelina admitted that the couple’s older children are beginning to ask why the couple aren’t married and a source told OK magazine: “As the kids get older and they add to their brood, they want to make as few complications as possible.

“Angelina has always toyed with the idea of getting married to Brad. She’s always followed her gut instincts in life, love and family.

“They’ll wake up one morning and know it’s the right time. With everything that they do, the decisions they make are for the greater good of the children and the family.

“[But] don’t expect some lavish Hollywood wedding. And neither of them are religious, so it will be simple.”

The couple are parents to six children - sons Maddox, Pax & Knox and daughters Zahara, Shiloh and Vivienne - but Angelina had to initially adopted Pax as a single mother because the Vietnamese government does not accept joint applications from unmarried couples.