Rob Kardashian seeks Blac Chyna's help to lose weight

Rob Kardashian has appointed his new fiancee Blac Chyna his personal trainer in a bid to lose 50 pounds by the time she turns 28 on May 11.
Rob has revealed he weighs just under 250 pounds, and now wants Blac to help him shed the weight, reported Hollywood Life.
In a series of Snapchat videos posted by Blac, Rob, 29, is seen getting on the scales, which read 248.4 pounds, and he said: "I weigh 250 pounds and I'm 6'1."
The "Keeping Up With the Kardashians" star then told the camera he'd love to weigh "210 or 200" pounds and the 27-year-old beauty replied: "I think that's perfect."

She added: "I'm gonna start training him myself. Do you give me permission to train you for the next five weeks?"
He wasted no time in trying to achieve his goals by getting on a treadmill straight after their weight loss conversation.