Rob Kardashian is the hardest member of his family to keep up with, mainly because he's very private.
But fret not! Rob recently joined Snapchat and his first entry was an...er, interesting video.
But perhaps Rob is making unintelligible sounds because he's dating Blac Chyna, the ex-girlfriend of Tyga — the rapper who is now with Rob's sister, Kylie Jenner.
