Kevin Mazur/Fox/WireImage

Luke Bryan revealed the secret to his 14-year marriage with wife Caroline: "make-up sex."

The "American Idol" judge and his wife - who share sons Thomas, 13, and Tatum, 10, - always talk through their issues. But if they ever have an argument, they get over their differences by getting busy in the sack.


Jeff Kravitz/FilmMagic

Asked during an interview with theSkimm what the secret to his successful marriage is, he laughed and said: "Communicate and make-up sex."

The 44-year-old "Waves" singer previously admitted he has to "work so hard" at marriage.

Mike Coppola/Getty Images

He said: "Sitting and letting something small turn into a big event is not how you make it. (Once you) have a family, you're doing this with your family – it's a lot. But you've walked down the aisle and you've said in front of God, 'This is who I'm going to be with forever.' You have to work so hard at it."