Seeing as Scott Disick is usually the one doing nightclub appearances and getting shmammered here and there, it's about time Kourtney Kardashian was allowed to cut loose!

On Saturday night Kourt dressed up as the bride of Frankenstein and hit up Tyga's Halloween party in Hollywood, and she was joined by a gal pal, and little sis Kylie Jenner was there as well. Earlier in the day Kourt and Scott grabbed their two oldest kids and met up with mom Kris Jenner in Calabasas, and the fam lunched together and then grabbed frozen yogurt afterwards. Sounds like a sweet way to spend the day!

And seriously, how cute is Penelope? We can't wait to see what kinds of costumes Kourt has picked out for her kids this year!