|Stacy Keibler & George Clooney in Mexico (justjared.buzznet.com)
The holiday comes less than a month after they spent Thanksgiving in Mexico with pals Alex Rodriguez, Cindy Crawford and Molly Sims and also celebrated Stacy's 32nd birthday in Cabo in October.
Although the couple are reportedly set to spend their first Christmas together with Stacy's parents, George recently revealed he is too dedicated to his career to have children and has no plans to ever marry again.
The 50-year-old star - who was married to actress Talia Balsam from 1989 to 1993 - said: "I've always known fatherhood wasn't for me. Raising kids is a huge commitment and has to be your top priority. For me, that priority is my work. That's why I'll never get married again."
George also revealed he has no plans to dye his greying hair and is embracing it instead.
He said: "I hear all this talk about how grey I'm becoming, but I can't imagine ever dyeing my hair. My dad has a full head of white hair and I think it looks pretty good."