Have you noticed Kendall Jenner has been spending more time with the ladies—playing with puppies, going to basketball games and having slumber parties—than usual? She may be taking advice from sister Kourtney Kardashian!

OKMagazine.com has exclusively learned Kourt ripped into her little sister for her homewrecking habits! A source told OK! the 18-year-old model was advised by her big sister to stop going for attached men, like Justin Bieber and Chris Brown.

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“Kourtney’s worried over Kendall’s choice in men and can’t believe she’d so blatantly steal or even flirt with another girl’s guy,” the insider told OK!

“She totally tore into her over it, begging her to wake up and stop it right now before she gets an even worse reputation,” the source added.

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One reason Kourtney told Kendall to quit being a “homewrecker” is out of respect for her sister Khloe Kardashian, who was cheated on by Lamar Odom.

“Kourtney pointed out that with all the hell Khloe’s been through with a cheating husband, Kendall should know better,” the insider said. “It just doesn’t look good.”

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But Kendall may be making a change for the better, hanging out with her girlfriends instead of taken men. The model-of-the-moment hanging with her roommate, Hailey Baldwin, and Gigi Hadid and going to Knicks games with her pals.

Her other BFF, Bella Hadid, also tweeted a conversation and tagged Kendall Jenner with the text, “who needs boys when we have PUPPIES,” which Kendall retweeted.

What do you think, OK! readers, is Kendall being a homewrecker or just having fun? Let us know in the comments and tweet to us at @OKMagazine!

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