Congratulations are in order for Olivia Wilde and Jason Sudiekis.

Wilde took to Instagram on Monday to announce that she was expecting her second child with fiancé Jason Sudiekis in the cutest way possible.

The Lazarus Effect actress posted an adorable picture of herself and her year-old son Otis holding on to their stomachs as they smile at each other. "Matching baby bumps," she captioned the photo.

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Wilde, 32, and Sudiekis, 40, have been a couple since December 2011 and had Otis in April last year, more than a year after they got engaged in January 2013.

Earlier this month, Wilde told People magazine that she and the Sleeping with Other People actor were ready to expand their family.

"I'm desperate for more [kids]!" she said at the Marimekko for Target launch. "I love my siblings so much and Jason has incredible siblings too. The more the merrier."

Sudiekis was also equally excited about the prospect of having more children with his fiancée. He told E! that he was "all for it" because of Otis. "My own kid [makes me want more], because I made it with Olivia and that seems like a good cocktail," Sudiekis said at the TriBeCa Film Festival premiere of The Devil and the Deep Blue Sea last week.

It seems to be raining babies in Hollywood and Wilde-Sudiekis are the latest celebrity couple to reveal that they're expecting a baby after Eva Mendes and Ryan Gosling, Blake Lively and Ryan Reynolds and Megan Fox have all made news with their pregnancies over the last week.

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