let's get real here.
the real reason she does this is because of the money train involved in it. any sexually appealing woman can have a bevy of photographers following them around in an attempt to make them famous. most are trying to do it themselves with selfies and other stuff so it can lead to other things. it's not easy, but and some are pretty successful outside of the kardashians. you basically have to invent demand for yourself
the sluttier the pics the more people want to see them. she has to do this to remain relevant and command money. the kar girls are money whores through and through and their not ashamed of it. they even have a gameplan the jenner girl is following as well.