The Kardashian sisters, Kim & Khloe Kardashian, threw a fabulous baby shower for Kourtney Kardashian this weekend.

Kourtney, 30, who is expecting a boy in December with her boyfriend Scott Disick, was joined by 80 guests this Saturday at her shower.  “It was a huge success,” a source tells PEOPLE of the shower, which began at noon and was organized by Los Angeles-based event planner Sharon Sacks, at the family’s home in Hidden Hills, Calif.

Other guests in attendance included Brittny Gastineau and comedian Heather McDonald, a regular on Chelsea Lately.

A Photo of Kourtney’s Baby Shower invite below -