Hotter than models: Kate's friends, sisters Sara (L) and Erin

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Erin & Sara Foster On The Kardashians, The Jenners, Gigi and Bella Hadid, and 'Barely Famous'.

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Kate Hudson reveals washboard stomach while filming commercial for her Fabletics line

Kate Hudson reveals washboard stomach while filming commercial for her Fabletics line

For Sara and Erin Foster, the Worst Is Yet to Come on VH1 - The New York Times

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