Kate Moss has warned Sienna Miller she will "have an enemy for life" if she hurts her good friend Rhys Ifans.The catwalk beauty had a dramatic showdown with rival Sienna over the actress' relationship with the Welsh actor at soap star Davinia Taylor's 30th birthday party at The Colour Rooms, in east London, on Saturday (17.11.07).Kate, 33, was overheard saying: "If you hurt Rhys, you'll have made an enemy for life. Treat him right and we'll leave you alone. But don't hurt him because we love him - and we always stick together."Kate - who organised the bash for Davinia - had begrudgingly invited 25-year-old Sienna, telling Rhys she would have to behave herself.However, after a few drinks Kate couldn't contain her feelings and confronted the 'Factory Girl' star.One partygoer told Britain's Daily Mirror newspaper: "Sienna was shocked by what Kate had said. She turned on her heel and took to the dancefloor. She just couldn't believe it."Kate has made no secret of her feelings towards Sienna, who is believed to have started dating the 'Notting Hill' actor in August.

In September, the pair had a blazing row at a friend's wedding reception when Sienna arrived with Rhys, 39, and Kate accused the actress of "stealing her style and friends".

Tagged in