We'll forgive you for missing this tidbit of social media amazingness that happened late Saturday: Kylie Jenner, the youngest (and most badass) member of the Kardashian-Jenner clan, joined Snapchat. Trust, this is major. So far, we've already peeped a tour of her brand new mansion, a pool party at big sis Kourtney's casa (check out Ky and Kendall showing some rare affection below) and LOL'd at Lord Disick's off-duty style (#SwimsuitSwag for days). If you thought her Instagram was revealing, this will blow your mind. Who else is praying for five second makeup tutorials? Add her @kylizzlemynizzl RN.