Kristen Stewart characterized her affair with her "Snow White and the Huntsman" director Rupert Johnson as a "momentary indiscretion" after photos of the two kissing surfaced, and other reports went so far as far to say the two never even actually slept with each other.

But Johnson's stepbrother, the young brother of his wife Liberty Ross, told the British website People.co.uk that the relationship had gone on for months, and until very recently.

"It was from the last half of filming and all through post-production, clear into last week," he told the website.

"[Liberty] made some sacrifices for something she thought was worth it, now she knows, right? Five minutes from her home," he said. "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."

Ross and Johnson have been married for seven years and two young children. Ross also starred in "Snow White and the Hunstman" as Kristen Stewart's mother.