The Snow White and the Huntsman director — who is married, with children — and his star were snapped embracing and kissing.
Meanwhile, Rupert's wife, model Liberty Ross, Tweeted: "Sometimes good things fall apart so better things can fall together," before swiftly deleting her account.
Could she be talking about her alleged philandering husband and Kristen?
Meanwhile, the Twi-hards are not taking this accusation lightly. Convinced there isn't trouble between Kristen and Robert, some are saying Photoshop was used to morph Kristen's head onto Liberty's body.
Meanwhile, sources tell People it was a "fleeting affair" and the actress "never meant to hurt anyone."