Saint and little brother Psalm adorably crashed Kim's workout session on July 21 to share a smooch.
Saint poses shirtless, wearing a necklace with his name on it, in a fun photo shared on July 20.
Mom Kim posted a pic of a smiling Saint on July 20, captioning, "Just how???" Saint is all grown up and looks just like his daddy Kanye!
Saint buries his smile into mom Kim's arm as the duo pose for an adorable pic that Kendall Jenner snapped on July 11.
"OMGGGGG," mom Kim K captioned with two heart emojis for this sweet photo from May 2021.
Saint stretches his arms out while a cowboy boot-clad Chicago looks at the camera in a May 2021 snapshot.
Saint has his arm around sister Chicago in a picture perfect stylish pic from May 2021.
Saint looked too cool for school in the sandbox during brother Psalm's 2nd birthday party.
Saint West takes after both his fashionable parents! The stylish tot donned a backwards New York Yankees cap, bandana printed jacket and camo pants in a May 2021 Instagram pic. "Freshest Kid alert," proud mom Kim captioned.
Saint was stylishly bashful in a May 2021 Instagram pic.
Saint West was all smiles next to mom Kim during a May 2021 backyard photoshoot.
Saint adorably gave mom Kim a kiss on the cheek in a May 2021 Instagram photo.
Saint hangs out with Kim's BFF La La Anthony's son, Kiyan.
Saint spent Oct. 16 with his little sister Chicago West and cousin Dream Kardashian. "Nothing fills my heart more," Kim Kardashian wrote alongside this heartwarming snap.
The gang's all here!
Saint and Reign Disick cheesin' during a family getaway to Colorado.
Kim Kardashian summed up this adorable photo of Saint West with the caption, "Look at this face!"
Saint and his cousin Reign Disick cheesing it up for the camera!
"Most days we don't get out of our pajamas," Kim captioned this cozy selfie with Saint West.
A sibling snapshot of Saint and North West.
Kim shared a photo of her as a child alongside one of Saint, writing that he's her "twin in every way."
"This is a screenshot of Keeping Up With The Kardashians," Kim wrote on Instagram. "Look at what a little chunk Saint was! OMG My baby!!!!!! I miss him this small!!!!"
Two weeks after Saint's dinosaur-themed fourth birthday party, Kim shared a few snapshots from the event to Instagram. "Kanye and I threw Saint the coolest dinosaur party for his 4th birthday!!! He had so much fun! Thank you @mindyweiss," she captioned the December 18 post.
"I have no words to describe how much I love your smile and those curls of yours Saint! You bring so much joy into my soul. You are so kind, loving and just so thoughtful and sweet! I am so happy today if your 4th birthday and We get to celebrate how much you've grown!" Kim shared in honor of her eldest son's big day.