Brad Pitt and Angelina Jolie are being pressured into marriage by their kids.

The Hollywood couple hope to set a date for their upcoming nuptials sooner rather than later because their six children Maddox, 11, Pax, eight, Zahara, seven, Shiloh, six, and four-year-old twins Knox and Vivienne are clamouring for their parents to make their relationship official and tie the knot.

Brad told E! News: ''We're getting a lot of pressure from the kids. We didn't realise how much it meant to them and then, in getting engaged, how much it also means to us.''

The lovebirds - who met on the set of 'Mr & Mrs Smith' - have previously stated they won't wed until same-sex marriage is legalised in America and 'Moneyball' actor Brad, 48, says proposing to 37-year-old Angelina in April made him believe more than ever that everyone should have the right to get married.

He added: ''Everyone should have [the right].''

Brad recently donated $100,000 to the Human Rights Campaign (HRC) in support of gay marriage and is backing their efforts to campaign for marriage equality in Maine, Maryland, Minnesota and Washington State.

Asked about his pending wedding plans, he said: ''I'm still hoping we'll figure out our marriage equality in the States before then.''