Kim Kardashian may be pregnant but the concept of how milk leaves the breast still seems to be a mystery to the reality star.
Kourtney stood over Kanye West's baby mama-to-be and literally squirted milk onto Kim's leg!
"Are you serious? I don't want to do this. Never mind!" Kim screeches. "Are you really going to do this? Ew! Ew! That is so disgusting that you can just squeeze that and have it come out."
Kim then makes Kourtney rub the milk into a psoriasis spot, because "I'm not comfortable, like, fresh off the boob."
Kourtney & Kim Take Miami airs on E! Sunday at 9/8c.