If there’s anyone who knows her way around a difficult relationship, it’s Kim Kardashian.

Luckily, she’s sharing some of her hard-earned wisdom from past romances with little sister Kendall Jenner, who is learning first-hand what it’s like to date a musician who spends lots of time away from her and in the presence of die-hard fans who’d do practically anything to get close to him.

Kendall’s current boy toy, Harry Styles, has a bit of a reputation as a ladies’ man, and it’s becoming cause for concern with big sister Kim.

“Harry and Kendall have been circling each other since being introduced a few months ago and are finally taking that next step,” says a source for HollywoodLife. “But Kim knows all about being played and fears Kendall will get hurt by the king of heartbreakers.”

While the insider says that the two initially entered into the relationship with the goal of getting publicity, things have evolved into a real romance.

“It was originally for publicity, but this is a case of hormones winning the fight,” claims the source. ”Harry likes her. He is having lots of fun with her and thinks she is cool and hot. And he likes that Kendall is trying really hard to get him for her own exclusive relationship.”

As for Kim’s fears of the One Direction stud breaking Kendall’s heart, we’re sure momager Kris Jenner put an air-tight clause in Harry’s contract preventing anything of the sort.

Source: HollywoodLife