Rick Santorum's image is being used to promote a video on demand website which sells gay and straight pornographic movies.

The ad by site HotMovies.com takes a swipe at the GOP presidential candidate's “Google problem.”

In 2003, Santorum spoke out against the Supreme Court legalizing gay sex in the then-pending case of Lawrence v. Texas: “And if the Supreme court says that you have the right to consensual sex within your home, then you have the right to bigamy, you have the right to polygamy, you have the right to incest, you have the right to adultery. You have the right to anything. Does that undermine the fabric of our society? I would argue yes, it does.” He linked gay sex to “man on dog.”

Gay activist Dan Savage responded to Santorum's likening of gay unions to bestiality by running a contest to define the word “santorum” and creating SpreadingSantorum.com, a website dedicated to promoting the definition.

Santorum (san-TOR-um) n. 1. The frothy mixture of lube and fecal matter that is sometimes the byproduct of anal sex.

The site has been so popular it often ranks high on searches for “Rick Santorum.”

HotMovies.com's ad features Santorum in a dark suit along with the caption: “THANKS TO THE INTERNET, YOU CAN'T GOOGLE THIS GUY'S NAME. THANKS TO US, YOU CAN SEE HOW ITS MADE.”

Early in the GOP nominating contest, Santorum called on Google to remove Savage's site and suggested that the company was not acting because it was biased against him.

“To have a business allow that type of filth to be purveyed through their website or through their system is something that they say they can't handle but I suspect that's not true,” he told POLITICO.com.

(Related: Newt Gingrich endorsed by adultery club.)