Grey's Anatomy and Scandal creator Shonda Rhimes is a mum again.

Rhimes took to Twitter.com on Wednesday (18Sep13) to announce the news she had adopted a third daughter.

She wrote, "Been Awol from Twitter. I totally have a good reason: Tiny Human #3 is here and she's perfect! Babies are good. Life is good. #2shows3kids".

Rhimes already has two daughters - Harper and Emerson Pearl, who arrived last year (12).

No other details about the baby are available.