Robin Antin, Kim Kardashian Sur Beverly Hills Kristin Cavallari

Kristen Cavallari went to dinner at Sur in Beverly Hills on Friday night, and the former Hills honey showed off her slim figure in a short and flirty black dress. Can you believe she gave birth to baby Camden less than a year ago?!

Earlier this spring Kristin graced the cover of Disfunkshion magazine and she revealed that her fiance Jay Cutler prefers her with a little meat on her bones. "I'm lucky to have Jay who would rather have a couple pounds on me," she told the mag. "He tells me when I'm too skinny. That helps."

Kristin added that aside from running around with a ten-month-old, she hits the gym regularly and eats healthy to stay fit. Guess she's just blessed with a low metabolism too!