Kylie Jenner may be the queen of Snapchat [1], but her sister, Kendall, may have just stolen the Instagram crown from Kim Kardashian [2]. Whether the 23-year-old model is showing off her effortlessly cool street style [3] or stripping down to her Calvins [4] — or sexy bikinis [5] — there's no denying just how hot Kendall is. Most recently, she strutted her stuff at the Victoria's Secret Fashion Show [6], where she most likely left everyone with their jaws on the floor. Read on to see all of Kendall's sexiest Instagram moments!