Kristen Stewart-Ben AffleckKristen Stewart can’t escape her new reputation as a cheater with married men. A new tabloid report claims she’ll be all over hot co-star Ben Affleck during filming of “Focus,” their upcoming movie. It sees another affair in her future.

The article, however, is based on nothing more than speculation. Affleck also seems likely an unlikely liaison, because he is happily married to Jennifer Garner, and they just had a baby.

Stewart blindsided boyfriend Robert Pattinson when her relationship with “Snow White and the Huntsman” Director Rupert Sanders was exposed by a tabloid over the summer. She reportedly has worked mightily since then to win Pattinson back.

Although the “Twilight” couple appear to have mended fences, they continued to be dogged by tabloid reports that the relationship is rocky. Now, the latest report in InTouch magazine goes one giant step further.

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Under a glaring headline: “Cheater Kristen: Wrecking Another Marriage,” the magazine claims steamy sex scenes between the two will make it impossible for them to keep their hands off each other off-screen. The magazine warns that Garner should be “very, very, worried.”

Kristen Stewart Cheating-InTouch magazine

As always, the story is based on anonymous “sources.”

While anything is possible, the story has no basis in fact. What’s more, Stewart hasn’t even gotten the part yet.

TheImproper reported last month that it was time for a “reality check” of tabloid gossip magazines that are making up wilder and wilder stories about celebrities to sell magazines or attract Website readers. The tricks range from misleading headlines to stories that appear to be fabricated.

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Google, the source of 70 percent of all pageviews through its search engine, is a culprit as well. It rewards the worst players in the celebrity “source” game because it gives original content, or “exclusives,” higher search rankings, even when the stories aren’t even remotely true.

It also penalizes Websites that play straight and do not make up stories to create sensational “exclusives.”

Actor Tom Cruise is fighting back. He sued two tabloids for $50 million claiming he was defamed by stories that reported he had abandoned daughter Suri Cruise following his divorce from Katie Holmes.

While that’s not the answer, the trend is unlikely to end anytime soon as the tabloids fight for sales and readers.