Post-Pregnancy Diet: Kourtney Kardashian Skinner Than Kim!

Kim / Kourtney Kardashian

Mirror, mirror on the wall tell me who's skinner: Kourtney or Kim Kardashian? According to what Kim says, Kourtney gained her sexy look back due to her post-pregnancy diet.

"My sister weighs less than I do, and she just had a baby so that's kind of fascinating to me!" 29 years old Kim told Us at Wet Republic in Las Vegas Saturday. The family was gathered there to celebrate Kourtney's 31st birthday. "She looks amazing!" Kim added.

But what is the secret? "Definitely breastfeeding helps. Everyone says that, but it's really true and it's just being a busy mom", Kourtney, who gave birth to baby Mason in December, said.
As you can see Kim didn't mentioned their other sister Khloe. Poor thing, she doesn't really count when it comes to diets. "If that's all it takes, breastfeeding?Then someone breastfeed off of me! I don't care!" she desperately said.