The Kourtney & Kim Take Miami star headed south of the border to Punta Mita, Mexico, with her family in early February -- and the new issue of Us Weekly has the exclusive photos. In one picture, the petite brunette is seen rocking a black-and-white Agent Provocateur bikini as she frolicks in the surf. In another, she and Disick, 29, enjoy a walk along the shore with their 3-year-old son, Mason.
Kardashian, 32, previously revealed to Us that she lost 44 pounds in six months after welcoming her daughter last July. "It was harder to lose weight the second time around," the E! star admitted in December. "I gained 45 pounds with Penelope."
At the time, the 5-foot mom-of-two credited Tracy Anderson's dance-focused workouts and a healthy diet with helping her slim down. And as these new bikini shots show, all that hard work is still paying off.
Disick clearly thinks so, too. A source tells Us the pair packed on the PDA while on vacation.
For more exclusive photos from Kourtney and Scott's family getaway -- plus scoop on what they did and where they stayed -- pick up the new issue of Us Weekly, on stands Friday.
This article originally appeared on Usmagazine.com: Kourtney Kardashian Shows Off Slim, Sexy Bikini Body on Vacation With Scott Disick and Kids
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