Kylie is said to be bankrolling Rob [Image: kyliejenner/Instagram]

Kylie Jenner is reportedly bankrolling her skint older brother Rob Kardashian.

Rob, 32, has been shying away from the limelight for years now, dropping out of family reality show Keeping Up with The Kardashians and living away from the spotlight.

But now, it's said that his bills are spiraling so far out of control that he's having to turn to his billionaire sister Kylie, 22, for some much-needed cash.

A source told RadarOnline: "He’s taken so much off his mom and Khloe over the years, so it’s been agreed far and wide that it’s Kylie’s turn to help Rob out."

He's 10 years older than his billionaire sister [Image: Instagram]

The whole famous family is said to be reunited in helping Rob financially, but that it's not just out of the goodness of their hearts.

The insider added: "Everyone’s united in helping him get full custody of Dream, if only to stick it to Blac Chyna, whom they all loathe with a passion."

As it's been reported already, Rob and Chyna, 31, are locked in a bitter custody battle over their three-year-old daughter Dream.

Court documents filed on January 7 stated that the concerned dad had asked a judge for full custody.

Rob and Chyna with daughter Dream [Image: Blac Chyna/Instagram]

Rob also accused Chyna - real name Angela White - of spending £450 a day on alcohol, or abusing drugs and failing to keep their daughter well-presented.

But she reportedly hit back at everything he was saying.

Sources close to her told TMZ: "Chyna has never done drugs in front of her children and only drinks on occasion... when her kids are not around.

"She claims she always keeps Dream clean and makes her practice good hygiene ... and has more than 100 nice outfits for her at her home."

Rob wants full custody

Rob and Chyna got together in January 2016 and announced their shock engagement just three months later.

Their relationship and her pregnancy was captured on their own reality series Rob & Chyna.

But they split just one month after welcoming their daughter.

Rob now wants Chyna's contact with the youngster to be limited to just weekends, with a nanny present.

He also wants his ex to submit to drug and alcohol testing no less than 30 minutes before each visit with Dream.

Mirror Online has contacted Kylie and Rob's representatives for comment.