Celeb bump day: Anna Paquin, Melissa Joan Hart, Drew Barrymore

Reese Witherspoon

Reese Witherspoon showed off her growing baby bump in a black lace dress at Paul McCartney’s private party to view his latest video, “My Valentine.”

This is Reese’s third child — first with her new husband Jim Toth. “Before Jim met Reese, he wasn’t sure about having kids,” one source reveals. “Being around her kids has really shown him what it’s all about.”

How does Reese feel about being a mother for the third time? She is reportedly “really excited” to be a mom again!

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Photos: WENN