Rob Kardashian's childhood crush was his SISTER Kim Kardashian

Rob Kardashian’s childhood crush was his SISTER Kim Kardashian, his fiancée has revealed.

Copyright [Startraks Photo/REX/Shutterstock]

Blac Chyna announced during an E! video teaser that the sock designer, 29, used to be a big fan of his raven-haired beauty sibling, 35.

At first, Rob divulged one of Chyna’s secrets, saying: “Her childhood crush is Ricky Martin,” and she launched into a version of the singer’s hit Livin’ La Vida Loca.

She then told the camera than his childhood crushes were none other than Jennifer Lopez - and his sister Kim.

Copyright [DJDM/WENN.com]

Confirming the statement, Rob replied: “That is also pretty accurate…”

Chyna added: “These are facts.”

Rob and pregnant star Chyna still appear to be spending time with each other, despite rumours they have clashed in recent weeks.

The pair are said to be “living separately” until their baby, who is due in November, is born.

Copyright [WENN/Reflector]

They are still said to be a couple but have decided to live apart for now after “fighting more”, but since they have been in separate houses they are getting on better.

A source told Us Weekly magazine: “They are living separately right now until the baby is born because they don’t want the fighting to affect the baby.

"They think it is a healthier way to live until the baby is born. He is living in Calabasas and she is in Tarzana. It’s just temporary and because they are living apart, the fighting has gotten less.”