Angela Kinsey's Stepson Jack Stands Over a Full Head Taller Than Her on His 16th Birthday: 'So Thankful'

Angela Kinsey's stepson is celebrating a monumental birthday!

On Wednesday, May 8, The Office alum, 52, shared a photo on her Instagram in celebration of her stepson Jack's 16th birthday. Standing back to back with their arms crossed, Jack stands over a full head taller than Kinsey as the two pose together on a porch.

"For the last few years, Jack and I would take a back to back photo on his birthday to mark the year he passed me up in height (shocker…it was awhile back!! 😂) and now we try to recreate this picture on his birthday every year," Kinsey wrote in her caption.

"Happy 16th birthday to this hilarious, smart, kind and very tall fella! Jack, I love you so much. I love our conversations about tv shows and movies and going to museums and exploring cool cities together."

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"And thanks for always letting me drone on about my improv days and what SNL sketches I think are classics. You are such a joy in my life and I’m so thankful for you! Happy Birthday!! 16!! ❤️," the proud stepmom added.

Kinsey is mom to daughter Isabel, 16, whom she shares with ex Warren Lieberstein. She is stepmom to husband Joshua Snyder's two sons, Jack and Cade, 13.

Last week, Kinsey celebrated her daughter Isabel's 16th birthday, sharing a sweet throwback photo of the mother-daughter duo. Holding her daughter in her arms, Kinsey smiled down at her while Isabel laughed and touched her mom's face.

"Happy 16th birthday to my sweet gal! This morning I crawled into bed with her and we laughed and talked and well, she is just the best," Kinsey wrote.

"Kind, smart, hilarious, and sassy. When she was little she once told me I was her “friend keeper” and “the hope of her heart”. And we still say this to each other. So a big happy 16th to my friend keeper! Isabel, I love you with the hope of my heart!! (Now if you’ll excuse me I’m going to be weepy and sappy all day!)❤️❤️❤️."