Hey, like her caption says, "What happens in Vegas stays in Vegas." Unless of course you post it to Instagram, then it stays on the internet forever.
Needless to say, comments have been largely positive regarding her her utilising a kitchen island for the purposes of double pumping, ranging from "Good for you, and good for baby!!!!" to "Hahaha baby bongs."
Kourtney made the jaunt to Vegas to celebrate turning 36. However, as you can see, a mammy's work is never done.