Kim Kardashian West believes her brother Rob will be "the best dad".

Kim Kardashian West

Kim Kardashian West

The 'Keeping Up With The Kardashians' star is thrilled her younger brother is expecting his first child with fiancée Blac Chyna and has been offering him advice about parenthood.

She told Entertainment Tonight: "I mean, it's so exciting. It's a really exciting time for him. I think he'll be the best dad. He's really just such a good, good person.

"We give him - I think more me - gives him advice and it's just been a really fun time. I'm really happy for them."

Meanwhile, Kim - who has two-year-old daughter North and five-month-old son Saint with husband Kanye West - previously revealed the whole Kardashian Jenner family are "super excited" about Rob's new arrival.

She shared: "Everyone is doing really great. Everyone is super excited."

And Amber Rose is thrilled her best friend Blac, who already has three-year-old son King Cairo with rapper Tyga, is expecting another child.

She shared: "I was the first person to know, obviously besides Rob [Kardashian]. I wanted to shout it out to the world like this is my baby, but I couldn't. I was screaming and like, 'Oh my God we're having a baby!' Chyna's my family so if she's having a baby, I'm having a baby.

"She's ecstatic. She's pregnant and she's with a man that they're both deeply in love with each other. To be happy and in love and having a baby and getting married. It's a great situation to be in."

However, the pregnancy hasn't been easy on Blac as she has reportedly been suffering from bad morning sickness.

A source said: "Chyna had a bit of morning sickness and felt pretty tired but is doing OK. Rob and Chyna will be getting one of the rooms in his house all ready for the baby. Chyna told [son] King about his new sibling on the way."