Wild times!

Kourtney Kardashian celebrated her 36th birthday with a Vegas bash on April 18, but just because it was her special day doesn't mean she could forget about her mommy duties! The reality star playfully joked around with a breast pump and uploaded the snapshot to Instagram, and we guess this was her way of getting crazy after the club closed!

Now that she has three kids, it's rare that she gets to cut loose… or take any time for herself! Maybe that's why boyfriend Scott Disick complained about her grooming regime on a recent episode of Keeping Up with the Kardashians.

"When her stomach is hanging over things, I don't think she realizes how unkempt her lawn can get. I think she forgets that hair still grows downstairs. If you'd have asked me you would have known that when I was 11 I worked in a barbershop for three days. I can trim you up real nice. Her bush is hanging out like its the '80s and I am not going to stand for that. So if I have to get my hands dirty then I will," LD joked on-camera.

At least Kourt is confident!