Jason Sudeikis hopes his second child will be as "fun and smart" as his son Otis.

Jason Sudeikis and Olivia Wilde

Jason Sudeikis and Olivia Wilde

The 40-year-old actor and his fiancee Olivia Wilde - who already have son Otis, two, together - will welcome another baby later this year and Jason revealed they are thrilled about a second child because Otis is such a joy.

He told Entertainment Tonight: "I think a lot of it has to do with being with the right person, but also I think we did a humdinger of a job on the one we got. He is very cute and he's very, very fun and smart. It's been fun getting to know him."

He jokingly added: "I assume that'll keep up for at least another-we'll check in every five years."

And Jason's 'Mother's Day' co-star Jennifer Aniston quipped: "I think they lose their charm around seven or eight. Then they just get dull for about a year or two. And then they perk it up, they entertain you again."

Olivia announced her pregnancy by posting a picture of herself and Otis on her Instagram page showing off their tummies and captioned it: "Matching baby bumps."

The pregnancy news comes not long after Olivia revealed she was ready for more children with Jason.

She said: "I'm desperate for more [kids]! I love my siblings so much and Jason has incredible siblings too. The more the merrier."

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