Kendall Jenner ain't skimping while celebrating her latest milestone! The second-youngest KarJenner is officially 30! Can you believe it?! It seems like just yesterday she and kid sister Kylie Jenner were running around like a couple of crazy kids in the background of Keeping Up with the Kardashians shoots! But she's all grown up now, hitting the big 3-0! And she went ALL out to celebrate! Related: Kim Kardashian's New Show Bashed As 'Worst TV Drama Ever' On Monday, several family members paid tribute to the super model on Instagram flexing a luxurious beachy getaway for the occasion.