Olivia Wilde Sends Adorable Birthdays Wishes to Her 'Magic Boy' Son Otis

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Olivia Wilde's little boy, Otis
, turned three on Thursday, and the actress couldn't contain her excitement.

The 33-year-old actress took to Instagram to share a super cute snapshot of her son enjoying an ice cream treat.


WATCH: Olivia Wilde Says Her Son Is a 'Meathead,' but Also Has 'the Greatest Rhythm'

"Happy 3rd birthday, magic boy. I love you even more than you love chocolate ice cream," Wilde wrote.

Wilde and fiancΓ© Jason Sudeikis welcomed Otis in 2014 -- just a little over a year after getting engaged. The couple welcomed their second child, daughter Daisy Josephine, this past October.

Wilde shared a radiant photo holding both of her little ones on Saturday, giving fans a great look at Daisy's beaming smile.

🐣😌🐣

A post shared by Olivia Wilde (@oliviawilde) on


WATCH: Olivia Wilde Shares Breastfeeding Photo With 'Drinking Buddy' Daughter Daisy

For more on the happy family, watch the video below.