Los Angeles, March 24 (IANS): Actor Ashton Kutcher says he will do every possible thing to keep his relationship with girlfriend Mila Kunis private.

The couple started dating in July last year after Kutcher's six-year-long marriage to actress Demi Moore failed.

Kutcher has now learned the importance of not bringing his personal life under limelight.

"You know, I've learned the hard way how valuable privacy is. And I've learned that there are a lot of things in your life that really benefit from being private. And relationships are one of them," he said.

"I am going to do everything in my power to have this relationship be private," Elle magazine quoted Kutcher as saying.

Kutcher, 35, says people will continue guessing about his relationship but he will prefer privacy.

"People will fill in the blanks however they want. There are some things that are better left private. Someone once told me, 'If anyone wants to be rich and famous, let them be rich first and see if they still want to be famous'," he said.