Kim Kardashian has played down reports she's fighting with her sisters.

A report in the latest edition of US magazine Star claimed Kim, Khloe and Kourtney were “at war” with each other.

But writing on her official blog, Kim said she “laughed out loud” when she read the cover story.

“Cat fights? Jealous fits? Trash talk? If my sisters and I have cat fights they are 100% playful, sisterly fights!!” she wrote.

“You've seen how we tease each other on the show, and how we joke around on Twitter... it's what sisters do!!!

“There's no war here, people! We all totally support each other in anything and everything we do. Plus a little competition never hurt anyone ;).”

The Keeping Up With The Kardashians star added that the only competition the sisters have is when they “drive each other to do better”.

Kim Kardashian