Kourtney Kardashian in a bikini
Kourtney Kardashian gave birth to her first son, Mason, in December. Since then, she's lost 33 pounds and proudly shows off her new bod in photos given exclusively to PopEater by Life & Style.

In this week's issue, the reality starlet dishes on getting into a two-piece, what her babydaddy Scott Disick thinks and reaching her goal weight. Get her quotes after the jump!