The fashion designer, who is expecting a little girl with boyfriend Scott Disick in July (12), was feted by sisters Kim and Khloe Kardashian, as well as her manager mum Kris Jenner during a backyard luncheon at the family's Hidden Hills home on Saturday (12May12).
A source tells Life & Style magazine, "Kourtney's shower was so nice! Her mum and sisters were there, of course. They talked, laughed, and played games. There was a bar and lots of different types of foods and desserts, including sushi and little sandwiches."
Disick was unable to attend the event - he was hosting his own promotional party in New Jersey that same evening.
The couple celebrated the socialite's pregnancy with Disick's East Coast relatives in Riverhead, New York on 29 April (12).