Sienna Miller Leaps into Water in White Tied Bikini

Credit: INFphoto.com Sienna Miller, long blond hair flying, leaps into the water in white tied string bikini

Sexy star Sienna Miller and her new boyfriend DJ George Baker aka Slinky Wizard are enjoying some well deserved R & R after all those interviews and red carpet appearances she made promoting her new movie G.I. Joe: The Rise of Cobra.

Sienna Miller really looks very sexy in her very tight, white tied string bikini as she enjoys soaking up the sun in Ibiza, Spain.

Ah, she really looks delighted as she plunges, feet first and long blond hair flying, into the cooling, refreshing water off the coast of Spain, as the temperatures sizzle on this dog day afternoon.

Credit: INFphoto.com Sienna Miller rubs some sun screen upon her boyfrined George Baker back.

The American born, British actress played the part of Baroness Anastasia DeCobray in the film adaptation of G.I. Joe: The Rise of Cobra.

As the Baroness, Miller played one of the deadliest members of the Cobra.

She wore the Baroness trademark black leather outfit with jet black long hair and, of course, black rimmed glasses.

Yes, she also managed to pull off the fight scenes - in six inch heels, no less.

An interesting fact about her new boyfriend was revealed by the UK Daily Mail, which informed its readers that her new boyfriend George Baker was, in fact, her sister Savannah's ex lover and boyfriend.

In fact, Savannah introduced him to Sienna.

In additional to acting, Sienna is also involved in the fashion business, having teamed up with her sister to set up the fashion label Twenty8Twelve that was launched in September of 2007 and backed by Pepe Jeans.

Also among her other favorite things to do on this hot dog day afternoon is applying some sun screen to her new boyfriend George Baker who already seems to be developing a sun burn or is he just hot?

Enjoy some additional pictures of Sienna Miller and her boyfriend day in the water.

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