Kourtney Kardashian celebrated her 34th birthday a day early on Wednesday with a casual night of bowling with her family and friends, including all her siblings and even family friend and Pussycat Dolls founder, Robin Antin, and pal Brittny Gastineau. In true Kardashian fashion, the low-key soiree was documented thoroughly via social media. Mom-to-be Kim Kardashian posted several pics on Instagram of her sister's bash and from the looks of it, they had a blast! Kourtney bowled with a Sponge Bob Square Pants ball and posed with her girlfriends in a pic doing "splits and high kicks" in front of the lanes.
While the girls did their best to go casual for the occasion, their bowling attire wasn't totally low glam. Though Kim is quite far along in her pregnancy, that didn't stop her from rocking a black top and blazer with ripped jeans and sky-high black heels! The birthday girl also sported pumps to the bowling alley, while Khloé wore a skull bandana, a bright red lip, and fierce hot-pink manicure.
Check out the vid to see the Kardashian family's photo diary of the big birthday bash!
More Celebrity Features on Yahoo!: