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Kylie Jenner squeezed in some bonding time with her boyfriend's mini-me. 

The reality star took to Snapchat Wednesday to share photos of herself alongside rapper beau Tyga's only child, 3-year-old son King Cairo.

The hangout comes just a few days ahead of King's 4th birthday on Oct. 16. 

Sporting an oversized pink shirt and leggings, the makeup mogul posed alongside the little boy and took a selfie in front of a full-size mirror.

Kylie Jenner, King Cairo

Snapchat

In a second shot, Jenner hopped on her boyfriend's back and snapped the photo in the mirror while the "Rack City" rapper looked another way. 

In the meantime, in just a few weeks, King Cairo will become a big brother as mom Blac Chyna is set to give birth to a baby girl on Nov. 16.

The Rob & Chyna star is expecting her first child with fiancé Rob Kardashian.

Chyna showed off her 36-week baby bump on Instagram recently and even stepped on the scale to reveal her current pregnancy weight.

At 186.6 pounds, she has gained approximately 40 pounds—nowhere near the 100 pound mark she originally set as her goal. 

"My goal is to gain like 100 pounds this pregnancy," she said on Snapchat in June. "I'm going to tear it up and then I'm going to snap back."

The expectant mom looked radiant in a champagne dress at her recent baby shower, which included roughly 80 guests, a belly dancer and plenty of baby-inspired games.

"It was such a fun party. Rob and Chyna had the best time," a source tole E! News. "Rob and Scott [Disick] arrived together right at the beginning and Rob was the last to leave. He was so happy [and] very very excited about being a dad. Scott kept teasing him and saying, 'Bob, you are about to be a dad!'"