Kim Kardashian Flaunts Hourglass Curves in Bikini—See the Sexy Pic!

Brian Prahl / Splash News

Kim Kardashian has one amazingly hot beach bod!

's fiancée showed off her killer curves in a sexy bikini on Sunday during a beach photo shoot in Thailand. The curvaceous Keeping Up With the Kardashians star looked picture perfect as she stood on a rock surrounded by clear blue ocean, having some fun in the sun!

North West's mama worked very hard to shed those pregnancy pounds, and as you can see, she's done that and beyond! Kim, 33, credits her toned tummy, sculpted legs and fit hourglass figure to regular workouts (that means five times a week, dolls!) and following the guidelines set out by the Atkins diet.

PHOTOS: Kendall and Khloe flaunt bikini bodies on vacay, too!

She actually gained some of her baby weight back when she strayed away from the Atkins diet, so she resumed the nutrition plan. Kim revealed in a Mobio Insider Q&A last month that she noticed her figure was fluctuating 'when I saw pics of myself,' so she 'started it [Atkins Diet] again...had to check myself.'

Still, though, how does she look like this after giving birth just nine months ago?! 'I think it's just trying to stay consistent, changing the way you eat,' she told E! News. 'Especially after having a baby, it's really hard. Your body totally changes. And I think you have to work out.'

Clearly, Kim is following her own advice there! But the Vogue cover girl isn't all work and no play. She's been getting in plenty of R&R with her family these last few days, Instagramming sisterly shots with Khloé Kardashian, Kendall Jenner and Kylie Jenner as well as some bro pics with Brody Jenner.

Kim knows it's important to make time for fitness, fun and family!

PHOTOS: Kim's sexy mom style