Happy Birthday, Saint! Kim Kardashian West Marks Son Turning 2 With Day 5 Christmas Card Photo

It’s Dec. 5 — which means birthday boy Saint is the Day 5 star in the KarJenner Christmas card 2017 extravaganza.

The son of Kanye and Kim Kardashian West turns 2 years old on Tuesday, and what better way to celebrate his milestone than with an adorable holiday snap?

“DAY 5- HAPPY BIRTHDAY to my beautiful boy Saint! I love you so much! You don’t even understand!!!” Kim, 37, captioned the photo, showing the little boy rocking a pair of jeans against a white background and holding up a wrapped Christmas (or maybe birthday!) present.

She added on her website alongside a photo collage of Saint, “To the sweetest boy in the whole wide world, HAPPY BIRTHDAY!!! I can’t believe you are 2 today. Thank you for choosing me to be your mom. I feel so blessed you are in my life. I love you so much!”

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The reality star has been posting daily snaps of the kiddos in her family since the first of the month, seemingly revealing the KarJenner annual Christmas card piece by piece.

A panorama shot of Saint kicked off the series, followed by shots of 4-year-old sister North on days 2 and 4 (the latter featuring her mama, as well). Day 3 belonged to Reign Aston: the youngest child of Kourtney Kardashian and ex Scott Disick who turns 3 this month.

Speaking of Reign, the youngster celebrated his birthday over the weekend with Saint at a joint Monsters Inc.-themed bash, complete with snow tubing, ice skating and even a visit from Santa Claus.

Both Kim and Kourtney used Snapchat to document the day, sharing photos of West leading his kids onto the ice rink and the boys’ individual personalized cakes themed after the two main characters from the Monsters Inc. films: a James P. “Sulley” Sullivan cake for Reign, and a Mike Wazowski cake for Saint.

Kim is serious about the Christmas season. In a November episode of Keeping Up With the Kardashians, the reality star and KKW Beauty mogul made it known that there would be hell to pay if anyone mimicked her décor theme.

“I have warned everyone,” she said in a confessional on the show. “I will come for them if they even dare try to copy anything that I’m doing this holiday season.”