Rob Kardashian rehab is being demanded by his family as the "Keeping Up with the Kardashians" star is reportedly hooked on Sizzurp and weed. In another development, the sock mogul is reportedly not talking to Kim Kardashian after his walkout on wedding.

In a report by TMZ, the family wants Rob Kardashian in rehab because they are worried for his health.

The website also published a photo of the reality star "taken a few days ago" where Rob Kardashian "holding a double cup ... the container of choice for Sizzurp," adding that the only Kardashian boy has also been "seen smoking weed."

"We're told the Kardashians have been calling rehab facilities, but Rob refuses to go," the website added. "They feel desperate because they don't know what to do and hope pictures like these may change Rob's mind."

The tabloid Star magazine earlier reported that Sizzurp is the main reason why Rob Kardashian's weight ballooned to as much as 260Ibs.

However, Rob Kardashian's rehab won't happen in the short term as the sock mogul didn't think that he needs help and he's not about to seek any.

A rep for the reality star told E! News  back in April that he's not in rehab contrary to reports that he was undergoing treatment at The Meadows trauma and addiction center in Arizona.

Meanwhile, PerezHilton reported that Kim Kardashian gave Rob Kardashian the cold shoulder in her wedding and now he's not talking with her.

The gossip site quoted a source who revealed that Rob Kardashian has ignored attempts by Kim Kardashian to reach out to him.

"They haven't been on good terms for a very long time," the source said, adding that Kim Kardashian "hasn't bothered to even attempt to talk to him since returning from their honeymoon."

Talking about Rob Kardashian, the source said that "he feels completely estranged from his sisters and family. He really isn't in a good place."