News Kourtney Kardashian Bares Her Booty While Working Out During Bahamas Girls' Getaway By Desiree Murphy 1:51 PM PDT, July 7, 2016 Now Playing hh:mm:ss Kourtney Kardashian is taking "work hard, play hard" to a whole new level.The 37-year-old reality star has been living it up on her girls' getaway to the Bahamas, while still finding time to work on her fitness with her close pals, Larsa Pippen and Isabela Grutman. WATCH: Kourtney Kardashian Flashes Her Booty in Miami -- See the Hot Pic!Kardashian took to Snapchat on Wednesday to reveal some of the trio's beach-inspired exercises, which consisted of performing lunges in their swimsuits on a dock."We're working out on vacation," the mother of three explained in one of the videos. View this post on InstagramBirthday girl! Cant stop wont stop 💪🏼A post shared by Kourtney Kardashian Snapchat (@kourtneysnapchat) on Jul 6, 2016 at 5:05pm PDTCheck out that form:Flawless! WATCH: Kourtney Kardashian Is Vacation Goals in a Cherry Red Crop Top OutfitThe girls vacationed to paradise in celebration of Pippen's 42nd birthday, and judging by their myriad of social media posts, it appears they've been having a blast.The birthday girl took to Instagram to share a pic of herself sporting a strappy black bikini, oversized sunglasses and braided locks.Kardashian, who also spent Fourth of July weekend with Pippen in Miami, followed in her footsteps, posting a series of videos and pics to the popular app."Happy birthday to my fly as hell boo!" she captioned one of the snaps. "I am so happy I got to celebrate with you today and for the past two weeks lol. I love you so much!" WATCH: Justin Bieber Spent Fourth of July Weekend Partying With Kourtney KardashianThe bikini-clad gals showed off their toned backsides in a slow-motion video of them holding hands and jumping into the crystal blue water."On a boat," Kardashian captioned it.They also posed for pics "on a beach…"…and "on Isabela." View this post on InstagramOn Isabela.A post shared by Kourtney Kardashian (@kourtneykardash) on Jul 6, 2016 at 2:50pm PDT WATCH: Kourtney Kardashian Flaunts Gorgeous Swimsuit Body During Bahamas TripTo see more about on their tropical getaway (which also involved a swim session with stingrays and pigs!) watch the video below.Kourtney Kardashian Flaunts Bathing Suit Bod, Swims With Pigs on Vacation - See The Pics! Related GalleryHollywood's Hottest Bikini Bods!