Sarah Drew glowed as she walked a special carpet over the weekend.

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The Grey's Anatomy star attended TGIT, an event celebrating showrunner Shonda Rhimes on Saturday night in West Hollywood. The actress sported a tight red gown that accentuated her growing baby bump.

“Had such a blast at the #TGITParty tonight!! I love the @ShondalandTV family!!!!” she tweeted after the event.

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At the event, Drew, 33, also posed with her costars, including onscreen husband Jesse Williams. Fans of the ABC show know that Drew's character, April Kepner, also revealed her pregnancy with Williams’ Jackson Avery on the season 10 finale in May.

Drew and her husband Peter Lanfer announced in July that they are expecting their second child this December. They welcomed their son, Micah Emmanuel, in January 2012.

"Peter and I are delighted to announce our pregnancy," she told People magazine in a statement at the time. "We can't wait to introduce Micah to his little brother or sister."

She also posted the first photo of her baby bump on Twitter with the caption, "Nope. That's not a fake belly :)."

Season 11 of Grey's Anatomy premieres on Thursday, Sept. 25 at 8/7c on ABC.