January 02, 2015 Check Out Kylie vs. Kendall Jenner Skinstagram Abs Battle! Oh, those Jenner girls! Over the New Year holiday, sisters Kylie and Kendall Jenner decided to try to outdo each other in the abs department. Kendall, 19, posted an amazing bikini shot while vacationing in Dubai on New Year's Eve, saying goodbye to 2014 and showing off a fiercely toned figure. Waiting for your permission to load the Instagram Media. Then Kylie, 17, shared a selfie from New Year's Day, displaying her similarly sexy figure in a short gray crop top and low-rise black pants. Waiting for your permission to load the Instagram Media. As for their New Year's festivities, Kendall was joined by fellow celebrities Selena Gomez and Gigi Hadid in Abu Dhabi for celebrations, while Kylie stayed in L.A. and partied closer to home. #CelebsOnSocialMedia #KendallJenner #KylieJenner #TrendingStories More New Pics! Kendall Jenner and Selena Gomez on Vacation in Dubai So Naughty! Kendall Jenner Strips Down to Lingerie, Gets Spanked by Santa Kylie Jenner Is ‘Bored’ with All the Lip Injection Rumors Rumored Couple Tyga & Kylie Jenner Totally Pay It Forward! Skinstagram! Kylie Jenner in White Hot Bikini Pics Kylie and Kendall Jenner, Sister Khloé K and Others Show Off the Legs!