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Swinging Sienna Miller 2006-10-06

Sienna Miller thinks monogamy is overrated.

The 'Casanova' star - whose boyfriend Jude Law had an affair with his children's nanny last year - thinks it is unrealistic for humans to stay faithful to just one person because sex is just an animal instinct.

Sienna told Rolling Stone magazine: "Monogamy is a weird thing to me. It's overrated because, let's face it, we're all f***ing animals. The fact is, no one is perfect."

The actress got her liberal view on monogamy from her hippy parents.

She explained: "They were really liberal in the early years.

"Our house was always full of artists and musicians and I knew from the start my parents were naughty and did things that other people's parents didn't."


Sienna, 24 - who stars as Edie Sedgwick in new Andy Warhol movie 'The Factory Girl' - has also spoken out about forgiving cheating Jude, 33, for his infidelity.
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