Blac Chyna showed off her growing baby bump while singing "Happy Birthday" to her 4-year-old son

By Stephanie Petit
October 16, 2016 10:04 AM

Blac Chyna has had all the attention on her growing baby bump, but this weekend was all about her son, King Cairo.

The model’s child with Tyga celebrated his fourth birthday with an extravagant “Lego Ferrari Party” on Saturday, complete with a giant inflatable racecar slide, lemonade stand, taco grill and Lego building stations.

Chyna, 28, documented the entire bash on her Snapchat. “Getting ready for King’s Lego Ferrari Party. He’s turning four tomorrow, so you know I had to do it big,” she said in one video, panning the camera over a fleet of red Ferraris in the driveway.

Blac Chyna/Snapchat
Blac Chyna/Snapchat

King will soon be the big brother to a little girl, but he was the center of attention on Saturday, spending much of the party in a mini car and wearing a racecar driver jacket.

Blac Chyna/Snapchat
Blac Chyna/Snapchat

Guests, which included Chyna’s mother Tokyo Toni and future mother-in-law Kris Jenner, gathered around while King and friends took swings at a piñata.

Blac Chyna/Snapchat

Party-goers then sang “Happy Birthday” to the toddler as he stood on the table next to his car-themed cake. Chyna stood next to him, dancing and showing off her baby belly.

After a rocky start, Chyna seems to be hitting things off with Rob Kardashian‘s family. Earlier this week, Kylie Jenner shared a rare selfie of her with her boyfriend Tyga’s son while Chyna spent a day at the pumpkin patch with  Kourtney Kardashian.