Kylie Jenner's got a hit reality show, endorsement deals, and the attention of millions of fans on Instagram, Snapchat and more. Brands like Levi's are lining up to catch some of her magic. She's an entrepreneur whose lip kits sell out in a flash, and a clothing designer to boot. She's also doing good for society, with an anti-bullying campaign. The millennial generation's hottest social star spoke with us about her passion for brands, expanding her business, and what she won't share on Instagram.