Kylie Jenner 'Feels Super Betrayed' By Rob Kardashian for Dating Blac Chyna (Report)

Kylie Jenner is reportedly “livid” with her older brother Rob Kardashian.

The 18-year-old reality star was apparently not very happy to find out that he’s dating Tyga‘s ex-fiancee Blac Chyna, who is also mother to their son, King Cairo, 3.

“Kylie is livid,” a source People. “She feels super betrayed and can’t understand why someone in her own family would stab her in the back like that.”

It all started when Blac Chyna took to Instagram to share a cuddly photo of herself in bed with Rob.

The duo reportedly bonded over their anger toward his sisters.