Rob Kardashian claims to be sober?

Rob Kardashian has reportedly said he is sober after his family expressed their concern over getting into drugs following his relation with Blac Chyna.

“Rob is upset his family believes he has slipped back into the world of drugs. Rob is insisting he’s clean and actually has improved his quality of life by living with Blac Chyna.

“Rob tells his friends he’s finally eating to lose weight, and he works out everyday because she has a gym in her house,” a source said.