The mom of two had two of her nieces join in on last year's celebrations
In the photos, Tatum is featured as an infant posing with his mom and big sister True, 5½. The siblings smile sweetly together in front of a candy heart-themed decor set up.
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Kardashian also shared video from the day, showing her laughing with her little one as they enjoyed a moment together.
"Celebrating my baby boy's first Valentine's Day last year. I love the sound of his laugh," she wrote. In another shot, she calls Tatum "My Valentine."
The reality star is gearing up for this year's celebrations, sharing photos of the assembly line setup she had for gift bags she was working on.
"This week I made all of the Valentine's gift bags for True and Dream's classmates," she explained in the caption.
Kardashian's Valentine's celebrations began on Feb. 1st, with her declaring on Snapchat, "February is Valentine's MONTH in our house so I'm doing something special for the kids all month..."
"So for Valentine's Day, every day of February — I filled out these hearts for both my kids and I wrote different things about their personalities and how I feel about them and I'm going to stick them on the door to each one of their bedrooms," she explained.
The hearts each had a different message, from "You are powerful" to "You are my best friend" and "Mommy and Daddy love you!" Kardashian shares her two kids with ex Tristan Thompson, 32.
"By the end of the month, they will have 29 messages each about how amazing they are and how loved they are," she shared. "And every morning we read them to each other so they can hear their own little love notes as well as the special messages for each other."
She added, "He was so good and I loved having him on set with me 💙."
In January, Kardashian revealed Tatum already loves a good fashion moment. The proud mom shared a photo of her son wearing a tiny Fendi button-down shirt and a chain on her Snapchat. In the pic, the little one can be seen enjoying a snack while rocking his fashion-forward outfit. Kardashian captioned the photo, "Tatum 🤍."
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