The actress posed with her daughters for a Twitter snap inspired by Game of Thrones on Thursday. Drew, 39, can be seen holding both her babies, wearing a T-shirt that reads Mother of Dragons, a reference to the hit HBO series' character Daenerys Targaryen.
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Drew Barrymore shared this sweet photo of herself with her two girls
"Get this Mother of Dragons T-shirt," she tweeted to her 200,000 followers. "All proceeds go to help employment for Foster kids in LA."
Drew and her art consultant husband Will Kopelman welcomed the latest addition to their family on 22 April.
Drew Barrymore and husband Will Kopelman
The star recently spoke to People about having two little ones in the household – and her joy at giving Olive, 20 months, a baby sister.
"I've just been so excited. I wanted a sibling for Olive so badly," Drew said. "I really knew this was the right path.
Drew Barrymore has said she wanted a sibling for Olive "so badly"
"Olive loves Frankie and just wants to hang out with her all the time. She wants to feed her. She's super into it. That's now. I'm sure things will ebb and flow."
That's not to say being a mummy of two is without its challenges. "They're awake and asleep at different times, or awake at the same time," Drew said. "And it's a juggling act a little bit."