With a lot already on their hands, a PacSun clothing line, the reality shows, a modelling career and college, one could not help but wonder how the Jenner sisters manage to keep their lives balanced. Additionally, to the surprise of many, reports reveal that the two hired help from a ghost writer, Maya Sloan, to write their sci-fi book, Rebels: City of Indra.

It is said that the sisters' family disagreed with having a ghost writer help them with the novel, but Sloan said that she saw it as a job opportunity and nothing more, "I've learned to check my ego," Sloan told the Los Angeles Times, "Ego will get you a teaching job in Iowa grading freshman comp papers, or a 9-to-5 editing promotional material where you want to slit your wrists. I'm writing for a living, and it's a gift to be a working writer."

Sloan said she accepted her job as a ghost writer saying credit should not be the most important goal of a writer. She also co-wrote a novel, Rich Kids of Instagram, with an anonymous Tumblr page author.

"You know some of those rich kids [featured in the novel] are going to be snorting coke off that line, which I think is hysterical," she said. "I don't judge."

The sisters defended Sloan and said they really needed someone who can understand the way they think.

"We just wanted to do something different - not something everyone would have expected from us, like a fashion, high school kind of story," said 18-year-old Kendall, during a break from a fashion shoot in Montauk, NY, this week.

"Maya wanted to understand our lingo," explained Kylie, "She's super smart and just kind of adapted to us - remembering what we said and the way we talked."

Sloan said she did not take the job to eventually end up participating in their reality show, "People are going to want to say I'm a YA author now, but it's not like one day I can't write a literary novel - whatever literary means," she said, "As if there are these Greek gods dictating what literature is? None of the students I teach read - even the really smart ones. They read magazines and blogs; everything is becoming really visual. So I can talk to you about Tolstoy and I can talk to you about 'Divergent.' I refuse the snobbery."