Kim Kardashian doesn't wears tight clothing to look sexy.

The curvaceous reality star claims she only wears figure-hugging clothing to compliment her body shape and prefers to show off her small waist in order to avoid looking top-heavy.

She said: ''I think because I have big boobs it could make me look heavier if I don't, like, show off my waist or something, so I just have kind of learned to dress one way only.''

It is unlikely that Kim - who is expecting her first child with rapper Kanye West - will borrow her sister Kourtney's old maternity clothing during her pregnancy as she feels flowing clothes do not suit her hourglass shape.

Discussing her wardrobe choices in relation to her two sisters, the mother-to-be told Du Jour magazine: ''Khloe can wear flowy, pretty things because she's really tall. Kourtney is like, really little. I'm just kind of in between, so it doesn't really work.''

Kim also spoke about her clothing brand DASH in the interview and how she loves bringing a ''luxury feel to the masses.''