The Kardashian sisters don't really do anything that surprises me anymore. Especially when it comes to the pics that they post on their Instagram accounts. I mean, at this point it's pretty well known that none of them have any issue showing off their bodies for the Gram.
Now, when I saw these pics, I wasn't shocked by them. I did, however, scratch my head when I saw the one pic with Khloe's hand on Kourtney's butt. I've watched KUWTK a few times and I know that the sisters do have a different kind of relationship. They seem to be much closer than most sisters are, I think. I'm not a sister and I don't have any, so I'm guessing on that point. But I do know that they get very hands on from time to time. This would be one of those times.
And for anyone that is looking at this and doing the whole "Who cares about the Kardashians?" thing, just remember that you clicked on here and you're looking. So to answer that question, you care. No matter how you feel about these girls personally, they all know what they're doing.