According to Kyle Richards, her sister, Kathy Hilton will not be joining The Real Housewives of Beverly Hills.

Speaking to Access Hollywood, Kyle said that the news that Hilton would be joining her on the show was nothing but a rumor."

"No that's a rumor!" said the reality television star at a fundraiser for the Charlotte and Gwenyth Gray Foundation to Cure Batten Disease in Los Angeles.

"The lies are crazy! I heard that my sister is joining. I heard I was fired and begging for my job. I heard somebody else was joining."

Although Hilton may not be joining the ladies for cocktails at Pump any time soon, Kyle did say that fans will be able to get their first look at the cast roster for Real Housewives of Beverly Hills season six really soon.

"You'll know soon -- very soon," she said.

The star also added that she had no idea how the rumor that her sister would be joining the show came to be.

"Every time I'm like, what is this? Where do they come from?" she said. "They say 'where there's smoke there's fire.' There's nothing! I don't know where they come up with these things."

Kyle also discussed her sister, Kim Richards, who has been struggling with alcohol abuse for some time.

According to Kyle, her sister, whom fans are still waiting to see on next season's Real Housewives of Beverly Hills, is doing better and taking good care of herself.