Celebrity Celebrity Moms Olivia Wilde Shares an Adorable Photo of Her Son Otis on Instagram By Jennifer Davis Jennifer Davis Twitter Jennifer Davis is a writer, editor, and content strategist living in Atlanta. She was previously the Associate Editor for InStyle, and is currently working as a Digital Content Manager at Cox Business. InStyle's editorial guidelines Published on April 1, 2015 @ 03:10PM Pin Share Tweet Email Photo: Jamie McCarthy/Getty Images Olivia Wilde and Jason Sudeikis's son, Otis, is growing up fast! The new mom shared a photo of her sweet 11-month-old boy today on Instagram, and we couldn't believe how big he's gotten. Dressed in super adorable spaceship pants and a gray sweatshirt, Otis (who's now walking!) and Wilde take a mid-afternoon break for a bit of playtime. Cracking big smiles all around, Wilde laughs as her son reaches towards her nose. "My kind of party," the star captioned: Rachel Zoe Launches a Maternity Line Inspired by Her Own Boho-Luxe Style While the actress has been busy since the birth of her son, promoting movies and working on her website Conscious Commerce, it looks like she's found a great work-life balance. “It’s so much fun, it’s amazing,” Wilde said of being a mom on The Daily Show show recently. “He’s wonderful.” We couldn't agree more! Jason Sudeikis Recalls the Birth of His Son Otis