Julia Roberts reaches out to Britney Spears

Julia Roberts covers Vanity Fair

"The highest high would be growing our food that I then make, and then composting and growing more - that kind of circle."

Roberts, 40, says that life would involve having "my own creative outlet, even if it's silly needlework and stuff like that."

She and her husband, cinematographer Danny Moder, have 2-year-old twins, Hazel and Phinnaeus, and a son, Henry, born in June.

When asked whether she wants more children, Robert says: "No, I don't think so, because at this point I'm having so much fun with them. You only have so much energy and you want to put so much energy into each child. ... And they're a really good trio, these three."

Robert says marrying Moder in 2002 was the right thing to do.

"It's the most correct decision I've ever made in my life - not that it was even a decision, because it just overtakes you. My whole body knew: 'Yes.' He's just my favorite guy," she says in the magazine's December issue.

Roberts, who won an Oscar for her role in the 2000 drama Erin Brockovich, will next be seen co-starring with Tom Hanks in Charlie Wilson's War, slated for release Christmas Day.

The actress says she'd like to work again with Denzel Washington, her co-star in 1993's The Pelican Brief.

"It's been way too long since that happened," she tells the magazine.