Reality TV star Khloe Kardashian is rumored to be outraged at legendary comedienne Joan Rivers and hip hop personality Ray J over their spoof of a sex tape sister Kim was infamously starred in with him.

According to TMZ, the 29-year-old Keeping Up With The Kardashian's star was so troubled by the parody she bailed on co-hosting Rivers show with her at the last minute.

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The website reports Lamar Odom's estranged wife was slated to shoot Rivers' E! network broadcast show on Wednesday and show producers are now scrambling to replace her and find a new co-host.

TMZ reports Rivers filmed a comedy sketch of Ray J and Kim Kardashian's sexcapades for her new WE TV show Joan & Melissa: Joan Knows Best?

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It's a busy time in the lives of both the Kardashian sisters, with Kim slated to wed hip hop star Kanye West in a Paris ceremony in late May. Khloe Kardashian, meanwhile, filed for divorce from the 34-year-old Odom last December, but the two are now rumored to be "talking all the time" and perhaps considering giving their four-year union yet another try.

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