Rob Kardashian "works out all the time".

Rob Kardashian

Rob Kardashian

The 'Keeping Up With The Kardashians' star may be expecting his first child with fiancé Blac Chyna but he has been sticking to his healthy eating and work out regime.

A source told E! News: "Blac has been indulging in what she eats more. But that doesn't mean Rob fell off track. He's still committed [to his healthy diet] and still works out all the time. They work out together too, but she just can't always do the same things as Rob right now. He still works hard!"

Meanwhile, it was previously claimed that Rob was "saved" by Blac.

An insider shared: "Khloé [Rob's sister] had the most issues with the relationship. She found Chyna in her kitchen [when she started dating Rob] and didn't know what was going on. She felt very disrespected.

"The girls literally thought Rob was going to die. They feel like Chyna saved him. The [Kardashian sisters] have gotten over their issues with Chyna now. They've welcomed her in."

However, it wasn't always that way as the Kardashians previously fumed after they found out online that Rob had got engaged whilst the rest of his family were holidaying in Vail, Colorado.

Khloe said: "He proposed in front of her whole family. That's so f***ed up. Rob is such a p***y. I'm not going to cover for him anymore. What am I covering for him anymore for?"

With Kim sharing: "I don't care if he tells me, I truly could care less."

However, sister Kourtney was more sympathetic to the 29-year-old star, adding: "I think that Rob has his happy life with Chyna. But I just hope that it gets to the place where he wants to hang out with his family again."