Kim Kardashian thinks her husband Kanye West has officially crossed the line with his latest track "XTCY," Breaking Celebrity News can exclusively report.

On the new track, which dropped on Saturday, the controversial rapper suggests he would "smash" his wife's four sisters— Kourtney, 39, Khloe, 34, Kendall, 22, and Kylie, 21 — and Breaking Celebrity News has exclusively learned that Kim is "furious!"

"Kim was livid. He did not run the lyrics by any of them before he dropped the song," a Keeping Up With the Kardashians confidante told Breaking Celebrity News, adding that the mom of three's sisters were equally disgusted.

"It really grossed them all out. The whole family was shocked that he would sexualize them like that."

However, Kanye, 41, told them it was "all in good fun," the source continued.

As Breaking Celebrity News previously reported, Kanye raps "You got sick thoughts? I got more of em'. You got a sister-in-law you would smash? I got four of em."

Kim, 37, had previously had gotten frustrated with her husband's many Twitter tirades and political rants earlier this year — and even contemplated divorcing him, a source told Breaking Celebrity News at the time.