Paris Hilton isn't the only one who can take a sex tape and turn it into a multi-million dollar brand--and she's not happy about it!

Paris has been seething to pals over the success of her former friend Kim Kardashian, according to Radar Online. Paris is reportedly jealous over the success of Kim's career and her A-list boyfriend Kanye West, particularly since the blonde socialite's latest reality show tanked and she seems to be on the losing end of the battle for attention. It's high school all over again!

Paris Hilton at Cannes, May 2012

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Even more upsetting for Paris is that she was responsible for introducing Kim to her social circle, only to see the Kardashian steal her thunder. While The World According to Paris was not renewed for a second season on Oxygen, Kim's reality empire on E! is bringing her a reported $40 million for upcoming projects. And while Kim is part of Hollywood's hottest couple with Kanye, Paris is currently dating DJ Afrojack and reportedly upset her beau is several levels lower in the fame department. What happened to being with someone because you liked them?!

Since Paris is trying anything to relive her A-list glory, from working on a second album to beginning a DJ career, she's had to field questions about whether her 15 minutes are up. Her temper-tantrum responses have even made her less popular than Kim amongst reporters, who haven't exactly been kind to Kim lately with their line of questioning. "You never see Kim acting like that ever with the press, even when she is asked if her marriage to Kris Humphries was a sham, or any other grueling questions," said one source. "Kim always handles herself with class, clearly something Paris can't say."

Although they still run in the same social circles, it doesn't look like these two will be having lunch together anytime soon.

Do you think Paris is jealous of Kim?

Photos courtesy of Fame Flynet