jeans Kristin Cavallari sunglasses post baby body the hills birkin

And then some!

Kristin Cavallari was all smiles when she left the Jose Eber salon in Beverly Hills on Wednesday, and we're dying to know how she dropped the baby weight so fast! Is it just us, or does she look even skinnier now than she did before her pregnancy?

KC gave birth to son Camden Jack on August 8, and though the former reality starlet has been spending most of her time in Illinois with fiance Jay Cutler (in case you didn't know, he plays for the Chicago Bears) she's back in California to handle some business. And let's be honest, the hair salons in the Windy City probably aren't quite as good as the ones out here...