Matthew McConaughey has revealed what made him finally walk down the aisle.

The Hollywood actor, 44, wed model Camila Alves, the mother of his three children, 18-month-old Livingston, Levi, five and Vida, four, after several years together.

He told GQ magazine: "I had to get to the point where I saw it as more than just the thing to do. I wanted to really want to. You know, I didn't want it to be a destination; the fun is that we're on the adventure together.

"So I spent a lot of time with her. We talked about it spiritually. We did a lot of reading and talked to a lot of people that had been divorced, a lot of people that had been happily married."

He admitted: "Some of it had to do with her putting it on me. It took her going, 'C'Mon Big Boy, Mr Easygoing-We'll-Get-To-It-When-We-Get-To-It. Either s*** or get off the pot."

The Dallas Buyers Club actor said that he loves fatherhood, telling the magazine: "Never is a man more of a man than when he is the father of a newborn... You're meeting the Courier. You're meeting the Shepherd, the Future Prince."

The Oscar winner, whose weight has fluctuated for movie roles over the years, said that he is "vain" but that he doesn't have to work hard to keep in shape.

"I have good genes. My dad was an athlete. I got real fortunate with that. I can curl that frickin' diary 20 times and look like I've been going to the gym. I haven't used a weight in three years."