Between Khloe Kardashian and her sister's boyfriend, Scott Disick

Last night Khloe Kardashian sent Scott Disick a picture of her cleavage and asked him if she should post it on Instgram and he replied. "You should, I will if you don't" so she posted it, he also posted it. Of course, trolls got involved and said it was inappropriate, that Khloe needs to respect her sister's relationship. Do you see anything wrong in this?