Kourtney Kardashian says Kendall Jenner is her ''favourite family member.''

The 35-year-old reality TV star, who is set to give birth to her third child with Scott Disick in December, is extremely proud of her 18-year-old half-sister for carving out a successful career as a model.

In a joint interview with her sister Khloé Kardashian, the 'Keeping Up with the Kardashians' star told E! News: ''She is my favourite family member, besides Khloé. I love her.''

She added: ''She was at my house all day yesterday, we were laying out by the pool.''

Asked about Kendal's success, Khloé added: ''I don't know... it's bizarre.''

Meanwhile, the 30-year-old beauty has been looking out for their younger brother, Rob Kardashian, 27, who has been struggling with depression recently.

She said: ''He's good. He's living at my house. I love living with him.''

But she admitted they don't always get along.

She said: ''We got into a little fight yesterday. I was like, 'We gotta work out this week, what are we doing.' I don't know, I guess I was pushing him a little to hard maybe.''