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Mother of two Kristin Cavallari has a new goal. After giving birth to her second son who is now 8 months old, Jaxon Wyatt, she wants to get curves as she realizes that she's really skinny. To E! News, she revealed that she woke up at 5:30 A.M. and went and walked uphill on the treadmill for 30 minutes.

"I try to work out four or five times a week and I eat incredibly healthy. I'm the kind of person who that doesn't eat toxic chemical. I just try to eat real food. I think probably the best tip is that I try to always get a vegetable in somehow, even in the morning if you're making a smoothie," she shared.

Kristin added, "After I had children, my body literary changed. And now for me, it's about trying to keep muscle, so that, yeah, I don't look to thin. Because I have no curves... I can look really skinny and I don't like that look. So, yes, I'm drinking protein shakes, I'm trying to put on muscle and lifting very heavy weight right now."

The former star of MTV's "The Hills" dropped 20 pounds only two months after giving birth to her second son last May. She wants to make her butt bigger and her husband Jay Cutler, who is a professional football player, tells her what to do. She, however, is keeping her goals realistic. "No matter what I did I could never have a Kim Kardashian butt," she said.