Remember Playboy? It's amazing how many people these days seemingly manage to make a living by traveling around the world and posting pictures of their adventures on Instagram. Many of them manage to rack up hundreds of thousands of followers in the process because people apparently love Instagram accounts that are designed to make them jealous. One of those people is Jaylene Cook, a self-described "adventure chaser" and Playboy model. Her Instagram is mostly filled with pictures of her traveling to exotic locations and posing without any clothes on. She's managed to use her rack (and other assets) to rack up over 300,000 followers.