Farrah Abraham's porn royalties

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Farrah Abraham is a porn hypocrite ...she CLAIMS she's not a porn star and is fighting the release of a sequel to her first flick but she's privately hounding porn producers to ante up a fortune in XXX royalties.

Farrah's first film -- "Backdoor Teen Mom" -- was released a year ago, yet it's still a top seller. TMZ has learned Farrah repeatedly called Vivid Entertainment last month for her quarterly royalty check. We found out Vivid wired her $93,927.72 for the last quarter of 2013.

We're told Farrah has received more than that amount from Vivid for previous quarters.

What's more ... Farrah got in the high 6 figures to shoot the flick.

As you may know ... she's been on a soapbox recently, proclaiming she's a mother and an author but not a porn star.

As for the sequel ... she can forget about it. We know she signed away all of her rights to videos Vivid might want to make from the original footage with James Deen. As a matter of fact, a Vivid source says "Expect a third one."

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