The reality star and her son jetted to London with friends, where they attended an Arsenal game.
Kim, 42, reposted a social media video from a friend – presumably on the trip with her – that showed Saint and several other kids running and screaming in a hotel hallway.
Children jumped about, hugging and flopping onto the floor.
Someone in the clip appeared to be screaming: “We won!”
The caption on the clip read: “We play soccer in hallways now… with feathered hats!”
Kim then added her own caption, writing: “Not trying to brag but with a Guinness and the feathered hat Allison & I bought in London when we were 16, my soccer skills kicked in and I WON THE GAME FOR THEM!!! NO BIG DEAL.”
A short time before she shared the video, she posted photos of herself and her gal pals “pub hopping.”
The Hulu star posted pics of Guinness pints sitting on a bar top.
She wrote: “Pub hopping on this St. Paddy’s day.”
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Kim then shared photos of several shots on a tray, writing: “Baby Guinness.”
The SKKN mogul has repeatedly stated that she’s not a big drinker, though her Instagram Story would suggest she was partying today.
Kim was spotted taking in an Arsenal game during her European jaunt.
She looked on as the club was knocked out of the Europa League after losing to Sporting CP.
The Skims mogul shared several snaps from the game, documenting her son Saint’s reaction to the less-than-favorable result.
The tot was recorded chanting Bukayo Saka’s name as he stepped up to take a penalty kick.
Eagle-eyed fans picked up on this and rushed to social media to joke about Kim sliding into Saka’s private messages.
One user said: “Arsenal let Bukayo Saka down. He was a win away from Kim Kardashian sliding into his DM’s.”
Others joked about the 21-year-old’s “star power”, while also adding that Kim’s recognition was the one win from the night.
One user said: “Key takeaway from this game is Kim K recognizes Saka, our starboy is clear!!!”
A second commented: “Kim K snapping Saka penalty and they were saying he isn’t franchise.”
“Kim K is a Saka fan I’m leaving with something,” remarked a third.
Bukayo is currently in a relationship with Tolami Benson and has been for quite a while.
While the team didn’t win, Kim’s son Saint still managed to come out on top.
The reality star uploaded footage of the footballer scoring a spot-kick in a shootout.
It was later revealed that he FaceTimed Kim and her group, chatting with her son as he rocked an Arsenal shirt.
Bukayo revealed to Saint that while he hadn’t seen them at the game, he had a shirt for them.
He was heard saying: “Sorry I missed you guys yesterday.
“They said that you was in the players lounge. I had one shirt for you.”
The sporting star added: “Tell them to let me know when they’re coming back and I’ll sort them some T-shirts.”
Kim captioned her video of the call: “And more surprises… the boys fave player for @arsenal @bukayosaka87.”
Bukayo also uploaded a snap from the sweet moment.
Kim reposted the upload to her story, writing: “Thank you for making our boys’ day.”