Kristen Stewart, Robert Pattinson's Relationship Under Siege as Accusations Of Actress' Infidelity Surfaces

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Kristen Stewart is remaining silent on claims that she cheated on boyfriend Robert Pattinson with Snow White and the Huntsman director Rupert Sanders, a married man.

Though her rep has yet to respond to Celebuzz's request for comment, PEOPLE is reporting the allegations that she had a “brief fling” with the father of two.

What are sources saying?

"Kristen is absolutely devastated," one source told the publication, which published the report on its website late on Tuesday night before its chief rival US Weekly, hit newsstands with photos that touted it as putting Stewart, 22, in a compromising position.

"It was a mistake and a complete lapse in judgment."

The source went on to tell PEOPLE that the fling did not constitute an affair.

“It was just a fleeting moment that shouldn't have happened," the source said. "She never meant to hurt anyone. She's a good person who just made a bad choice."

A source close to the actress told Gossip Cop, “It’s not a relationship," adding that Stewart "is not with him."

A rep for Sanders, who is married and has two children, could not be reached for comment when contacted by PEOPLE.

The reports come on the eve of the much anticipated release of The Twilight Saga: Breaking Dawn Part 2, which hits theaters in November 2012.

Just this week Pattinson, 26,  denied rumors he and Stewart, 22, were marrying:

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Discuss

Default avatar
  • Cristina Kozain
    Cristina Kozain

    Either way he is gay, so even if this relationship were true, and is not, as he was deceived??? She left with a real man .... do what??

  • beatles64
    beatles64

    where can you see it? I love trying to see how stuff is photoshopped.

  • just saying
    just saying

    RP denying marriage? Listen to the whole interview. Don't take it out of context. You forgot to add the part about "not right now.................". I hate bad journalism.

  • Penny
    Penny

    usmagazine.com already took down the article…… now do you think its true?

  • Brianna Miles
    Brianna Miles

    http://www.gothamreel.com/kristen-stewart-cheated-on-robert-pattinson/ Check it out guys! I can't believe this!

  • adfm
    adfm

    YOU CAN SEE ONLINE THE ORIGINAL PHOTO...ANYWAY

  • tina
    tina

    Oops sorry havent seen that one

  • Andrea
    Andrea

    if its true shame on both of them!

  • adfm
    adfm

    i mean the US WEEKLY photo, not the premiere

  • stormy08
    stormy08

    go to D - LIST and read about...k-paz..,,you will be educated....

  • tina
    tina

    Its not photoshopped i saw her wearing that promoting swath

  • stormy08
    stormy08

    this is a PR stunt...since twilght is finish and the 2beards want want to b free..this has always been a faux romance...its so they have gotten their moneys worth...this isHollwood fans!

  • adfm
    adfm

    that is rupert's wife on the picture!!! its totally photoshoped!!!

  • sa
    sa

    ever think that this guy could be lying for attention?

  • Nwvotes
    Nwvotes

    Kristen Stewart reportedly cheated on Robert Pattinson with married director. Do you think this is true or false? Vote at Nationwidevotes.com

  • adfm
    adfm

    I CAN'T BELIEVE SOMEONE EVEN BUYS THIS SHITTY MAGAZINE!!! FULL OF CRAP

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