Sam Rockwell and Leslie Bibb credit their relationship success to "good sex".
The couple have been together since 2007 and, as well as making sure they speak openly to one another, they also think getting intimate is a great way of keeping their bond strong.
Asked on the red carpet at the recent Screen Actors Guild (SAG) Awards for their relationship tips, Sam said: "Communication."
Leslie added: "Good sex."
Her partner laughed as he agreed: "Communication and good sex." The couple also think it's important to make one another laugh.
Leslie, 43, continued: "And a healthy sense of humour."
Her partner replied: "Humour is very important. She's very funny."