Kim revealed in an interview with a US magazine: "I am definitely way sexier ever since having my daughter! The struggle to get back into shape after giving birth is such a real one.

"It's so difficult to do, and afterwards, all you want to do is show off your body and feel sexy. I mean, my style's definitely more simple..."

33-yera-old Kim gave birth to daughter North last year, but soon after the birth started a strict diet and exercise regime to help get herself back into shape.

Sister Khloe agrees that Kim has become 'more sexy' since becoming a mother.

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Khloe said: "I think your style's the same, really - you've just amped up the sexiness."

Kim then replied: "I know! I just want to be a MILF!"

Unlike Kim, eldest Kardashian sister Kourtney says she prefers to be comfortable rather than look 'sexy'.

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The pregnant mum-of two said: "For me, I just go for what's practical and comfortable. But then, when I'm not with my kids, I usually take those opportunities to step it up.

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"My day-to-day look is all about flats, basically. I still try to look cute and stylish, but I'm all about comfort and practicality..."

Do you think Kim's style has become 'sexier' since she became a mother?