Rob Kardashian returns to social media to celebrate sister Khloé's birthday

Rob Kardashian, 36, returned to social media for the first time in four months on June 27 to celebrate his sister Khloé Kardashian's 39th birthday.

Rob Kardashian makes rare social media appearance at sister Khloe's 36th birthday - OK! Magazine

Rob Kardashian News, Pictures, and Videos - E! Online

Khloe Kardashian, More Celebrate Rob Kardashian's Birthday: Pics

Rob Kardashian returns to social media to celebrate sister Khloé's birthday

Khloé Kardashian Shares Super-Rare Photo With Beloved Bro Rob Following Birthday Celebration! - Perez Hilton

Rob Kardashian Smiles with His Sisters at Khloé's 36th Birthday Party

Rob Kardashian Weight Loss Photos: Transformation Pictures

Rob Kardashian Writes Rare Birthday Tribute to Khloé Kardashian

Khloe Kardashian gets rare birthday tribute from Rob Kardashian

Kim Kardashian and Sister Khloé Celebrate Kylie Jenner's 26th Birthday

Rob Kardashian Now: Latest News & Pictures of Robert Jr.