U.S. reality show co-stars Paris Hilton and Nicole Richie may be going their separate ways.

InTouch Weekly reports that Hilton wants to do a show without Richie, her travel companion in "The Simple Life" and friend since childhood.

"I can carry my own show," Paris reportedly said to a friend. The magazine says the third season of the duo's reality show -- which has received some not-so-good reviews -- will be the last.

A spokesman for Hilton denies the report, telling MSNBC, "That's completely not true. That would be like Lucy and Ethel splitting up."

The third season of "The Simple Life" begins Wednesday night on the Fox network.