Czech-born supermodel Petra Nemcova has dismissed rumours she is dating Hollywood hardman BRUCE WILLIS - despite the actor's reported claims to the contrary.

Willis, who has given generously to the catwalk beauty's tsunami charity, has allegedly bragged about dating the 27-year-old, but although she admits to having seen a lot of the DIE HARD star, Nemcova insists they are not romantically involved.

She says, "He's been really sweet to me, but I wouldn't call it dating," according to gossip site PageSix.com.

Nemcova's representative refused to comment.