Riley Keough says she and Ben Smith-Peterson will "always be close."
The 25-year-old actress married the Australian stuntman in Napa Valley, California last month because it was "the right thing to do right now," but admits their union might not last forever.
She said: "You know, I'm not delusional or a complete idiot, and neither is Ben. 'I'm so excited! He's the one! We're going to be together forever!'
"Like, I want to have children with Ben, and I know we'll always be close. That's what you want anytime you get married."
Asked to clarify her comments, she added: "Every time I get married."
The couple met in Namibia in 2012 while filming 'Mad Max: Fury Road,' and Riley admits everyone knew he was going to propose last August before she did.
She told Town & Country magazine: "Everyone knew. Even Grubs [our French bulldog]."
The actress, who is the daughter of Lisa Marie Presley and Danny Keough, and the eldest granddaughter of the late Elvis Presley, was previously engaged to Alex Pettyfer until they split in 2013.
But she claims she has never gotten her heart broken.
She said: "I've maybe gotten broken up with one time. And I like to think that's because I'm a very good girlfriend."