Kristen Stewart affair with Rupert Sanders went on for more than 6 months says Liberty Ross brother.

It was more than just a few stolen kisses in the parking lot….

In her public apology to boyfriend, Robert Pattinson regarding her dalliance with “Snow White and the Huntsman,” director Rupert Sanders, Kristen Stewart  was adamant in her assertion that it was only a ‘momentary indiscretion.’

That though according to Leopold Ross, brother of Sander’s wife,Liberty Ross couldn’t be further from the truth as last weekend he has come out and told Brit newspaper,  The People, that the fling was more than just a few stolen kisses in a parking lot and in fact an ongoing affair that went for better than six months:

“It was from the last half of filming and all through post-production, clear into last week.”

With the movie having been shot from September 19 to December 10, 2011, meaning that the affair actually began last fall, according to Leopold.

According to the journal, Sanders’ wife, Liberty Ross, who plays Kristen’s mother in the Snow White movie, believes the fling started during filming last year and carried on until 2012. She also goes on to mention how she saw the pair looking admirably at one-another during the premier of the film, further fuelling her suspicions.

Leopold also spoke about how his sister Liberty had sacrificed a lot for her husband, uprooting their young family to Hollywood to give his film career a chance:

“She made some sacrifices for something she thought was worth it, now she knows, right? Five minutes from her home. Doubt it was worth it but it’s life.”

“It might actually make things better in the long run. She wasn’t that happy for a while, but our family is close, she’ll be all right.”

Who might not be all right in the long run now is Kristen Stewart if her web of deceit is proven to be more than just a momentary indiscretion but a full fledged affair.