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Just how bad did Justin Bieber's diehard fans get?

"They sent me messages like, 'If I ever see you in the streets, I will kill you! You took my man!'" Kim Kardashian told Saturday at Lala Vasquez's bachelorette party at Tao Las Vegas. "I got a few today. One said, 'I will shank you.' Not too sure what a 'shank' is."

Kardashian, 29, angered Bieber fans after she met the teen idol recently at the White House Correspondents' dinner and said she had "Bieber fever." He then jokingly called her his "girlfriend."

"Realistically, he's 16-years old and he's adorable, but it's not that serious," she told Us.

Despite the threats, she told Us, "I still have Beiber fever. It’s not his fault that all the Beiber fans are after me. They're all young, so I’m hoping that it's all just in fun and that they seriously don’t mean it."

Is she eyeing anyone other than Beiber these days?

"I just have to stick with Justin," she told Us. "I have no other eyes for anyone at the moment. I’m faithful in my crush."