Kourtney Kardashian Dons Sexy Crop Halter Bikini With Seashell Detail: Photo

Kourtney Kardashian
Kourtney Kardashian wore a sexy crop halter bikini while vacationing in Mexico 

Nearly five months after welcoming her third child, and Kourtney Kardashian is already set for beach season! The Keeping Up With the Kardashians star showed off her gorgeous post-baby body while vacationing with her family over Mother's Day weekend.

Scott Disick's love, 36, wore a sexy crop halter black bikini while catching sun rays at Casa Aramara in Punta Mita, Mexico. The revealing number also was detailed with little seashells.

Last month, Kardashian revealed that she's down to 116 pounds since welcoming son Reign in December. She's been hitting the gym with sister Khloe Kardashian — and probably stays fit by running after son Mason, 5, and daughter Penelope, 2!

My RAD little bunny.

A photo posted by Kourtney Kardashian (@kourtneykardash) on May 16, 2015 at 11:32am PDT

Luckily, the mom of three has a little more time before Reign starts walking. On Sunday, May 16, she posted a new photo of the bundle of joy relaxing in his car seat. "My RAD little bunny," she gushed.

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!

Want stories like these delivered straight to your phone? Download the Us Weekly iPhone app now!