The ladies of the Kardashian-Jenner clan have mastered a very tricky balancing act.
For years, they've been granting the public unprecedented access to their personal lives, while still managing to keep certain key aspects of their affairs hidden from view.
The result has been a situation in which fans feel like they know everything there is to know about Kim and company, but are often in the dark far more than they realize.
Occasionally, the doors to their world are wide open, and we watch a drama like the Tristan Thompson-Jordyn Woods cheating scandal play out in real time.
But in other cases, some of the family's most tense situations are quickly swept under the carpet.
According to a new report from Radar Online, the relationship between Kendall and Kylie has been fraught with tension for the past four years.
Insiders claim the sisters have occasionally been able to set aside their differences, but their mutual enmity has reached the point at which they avoid unnecessary contact with one another.
Insiders tell Radar that the feud is mostly the result of Kylie's jealousy toward Kendall.
It's hard to imagine a world-famous 21-year-old billionaire being jealous of anyone, but sources claim Kendall's modeling career has come between the sisters.
An early moment of tension was captured on Keeping Up With the Kardashians in 2014, when Kylie stormed out of the room in a jealous rage as Kendall discussed her burgeoning modeling career with Kris and Caitlyn Jenner.
Kendall's career led not only to increased fame, but also to a new circle of friends, including several of Kylie's former besties, like Hailey Baldwin.
"It's crazy, because I never thought I would have more friends than Kylie," Kendall said in an interview with Elle early in her career.
"Not that there's ever been a competition or should be anything we'd ... I don't want that to come off as weird, but again, she's so happy with the life she's living."
Compounding the problem is the fact that Kylie reportedly dreamed of being a model.
But her aspirations toward a career on the runway have repeatedly been thwarted, much to Kylie's frustration.
"Kylie has never understood the fuss about Kendall and her catwalk career," one insider tells Radar.
"In her opinion, she has just as much to offer in the beauty and style stakes."
At times, Kylie has been candid about her many differences with her elder sister.
"I don't think we'd be friends if we weren't sisters," she told the camera on an episode of her short-lived reality show, Life of Kylie.
"We have different opinions. We do everything differently."
Similarly, Kendall has revealed that she and Kylie are often at odds.
"We've always been close, but we would butt heads all the time," Kendall told an interviewer last year.
Sources claim the tables have now turned, and Kendall is jealous of Kylie's billion-dollar cosmetics empire.
"Kendall thinks it's crazy how much Kylie's worth, while she's only got a fraction of that in the bank herself," an informant tells Radar.
Perhaps it's for that reason that Kendall was the only one of Kylie's sisters who failed to congratulate her when she reached the billion dollar valuation mark,
Add to all this the rumors that Kendall slept with Travis Scott before he began dating Kylie, and it's not hard to see why so many are convinced the sisters are bitter rivals.
It's a good thing for the family empire that they've gotten so good at keeping their feud a secret.