Khloe & Kim No Longer Talking After Kanye's 'Sick & Twisted' Antics

RadarOnline.com has exclusively learned Khloe Kardashian is "absolutely horrified" over her sister Kim's involvement in Kanye West's recent video "Famous" — and it's destroyed the once close sibling's relationship!

Khloe, 32, "can't believe what a doormat Kim's become," a family insider explained. "Kanye totally controls everything in her life now and her participation in this bizarre orgy video has sickened the feminist in Khloe."

As RadarOnline.com reported, Kim, 35, was featured in her 39-year-old husband's new video featuring her naked next to West's arch-nemesis, Taylor Swift, among others.

"She can't stand how her sister just rolls over and does whatever sick and twisted crap Kanye wants," revealed the insider. "It's totally upset Khloe, who thinks Kim's being destroyed by her husband."

While "wearing some of his horrific designs is one thing," noted the insider of Khloe's stance on the issue, "taking part in such a tasteless takedown of another woman is just plain mean."

"They're not talking right now," revealed the source. "Things were already tense between them because of Khloe's rejection of Caitlyn, but Kanye video's really tossed fuel on the fire."