Sara De Boer / Retna Digital 1 / 4
Sara De Boer / Retna Digital 1 / 4

Leelee Sobieski and her fashion designer fiance, Adam Kimmel, are expecting their first child together, Usmagazine.com confirms.

"The happy couple are thrilled to be expecting their first child in December," the star's rep tells Us.

This will be the first child for both.

Usmagazine.com confirmed that the couple were engaged in June, when the star, 26, wore an engagement ring at the premiere of her latest film, "Public Enemies."

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