The Keeping Up With the Kardashians star -- who turns 34 on April 18 -- has worked hard to bounce back from two pregnancies
After losing 44-pounds in six months, the Kourtney & Kim Take Miami star proudly showed off her post-baby bikini body on the cover of Us Weekly. "It was harder to lose weight the second time around," she admitted. "I definitely had some moments when the weight was at a standstill. It was frustrating and I'd start to wonder, 'Am I ever going to get my body back?' Then I'd be like, 'Okay, you just had two kids. Take it easy.'"