A Mississippi woman who became an Internet sensation as "female Ted Cruz" has agreed to make a six-minute porn for US$10,000.

It's OK, 21-year-old Searcy Hayes told The Huffington Post, because she's doing it for her family.

"I want to get my son whatever he wants," she told the website.

Hayes became an online hit after appearing on the Maury Povich show, where she was accused of cheating on her fiance (she didn't, apparently).

But viewers also noticed her uncanny resemblance to Cruz, the Republican candidate, and her photo next to his went viral.

Porn site XHamster.com offered Hayes and her fiance the porn deal, because the site's members "really wanted to see her in action," according to spokesman Mike Kulich.

"We want to buy a truck, pay off our house and we might get married," fiance Freddie Green told Huffington Post. "I never had anyone say, 'Here's $10,000! Go make a sex tape.'"