Gorgeous 31-year-old Victoria's Secret Angel Marisa Miller tells OK! how she maitains her figure, and surprisingly finding out that she has a weakness for cheeseburgers!

“When I’m home, I either do Pilates or boxing,” the 5-foot-8-inch Santa Cruz, Calif., native Marissa tells OK!. “I also surf. It’s important that you do something.”

How do you maintain your amazing figure? One of the most important things is consistency, which is difficult for me with all the traveling I do. I have to plan a lot. I bring nutrition bars with me in case I’m in a pinch and can’t get a salad or something fresh. When I’m home, I cook and try to eat really clean. I try to eat vegetables at every meal. I stay away from pasta and bread and have brown rice and potatoes instead. The great thing about having a healthy diet is that when I splurge and have that day where I have the cheeseburger and fries, I don’t feel bad about it, because I know I’ve been eating well and one meal isn’t going to kill me.

Does staying slim come easily for you? If I have to be in lingerie in front of everybody, that’s plenty of motivation! But anybody who knows me knows that I have a very healthy appetite. It’s not about being as tiny as possible; it’s about having balance. If you feel like having a cheeseburger, have one, but let your diet be healthy 90 percent of the time.