Celebrity See Kourtney Kardashian's Sexy Lingerie Selfie and Her Massive Closet By Meghan Overdeep Meghan Overdeep Twitter Meghan Overdeep is a writer and editor based in Brooklyn who covers all things celebrity and pop culture. She worked as a News Blogger for InStyle for two years and is currently a Senior Staff Writer at Southern Living. InStyle's editorial guidelines Updated on March 30, 2016 @ 10:30AM Pin Share Tweet Email Photo: Jason Merritt/Getty Images Kourtney Kardashian is one hot mama. The eldest Kardashian sister has been hitting the gym hard lately and hasn't hesitated to show off the fruits of her labor. Kardashian, 36, shared yet another look at her envy-enducing bod on Tuesday, this time with a selfie of her wearing only black lingerie. In the photo (below)—which Kourt originally posted to Snapchat—the mom of three sits in a chair with her legs folded inside her seriously impressive closet. Her long brown strands barely cover her partially sheer black bra, which highlights the rock-hard bod she's been working to tone up. Kourtney Kardashian Bares Her Impeccable Abs in a Sizzling Bikini Photo Although Kardashian has been using Snapchat only for a few short weeks, she's quickly become obsessed with the popular social media app. A handful of recent snaps with her ex Scott Disick even had fans wondering whether the couple had re-united, rumors that the Keeping Up with the Kardashians star quickly squashed. "By the way everyone relax, people that have three kids together spend time together," she said in a video.