Kristen Stewart has issued a grovelling public apology to Robert Pattinson following revelations of her affair with married director Rupert Sanders.
Pictures emerged last night of the Twilight actress, 22, in the arms of the 41-year-old Snow White And The Huntsman filmmaker - who has two young children with model wife Liberty Ross.
According to People, Kristen said: 'I'm deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected.
'This momentary indiscretion has jeopardised the most important thing in my life, the person I love and respect the most, Rob. I love him, I love him, I'm so sorry.'
As Kristen prepared to spread her wings from the vampire franchise, she joined forces with the father-of-two to work on his $170m feature debut - which was released just last month.
Wife Liberty, 33, played Queen Eleanor - Stewart's mother in the box office hit.
Yesterday it was reported that last Tuesday, Kristen was caught in the arms of Rupert - with celebrity magazine Us Weekly claiming to have photographic evidence.
Kristen can be seen wrapped in the arms of a man alleged to be Sanders on the cover of this week's issue of the American magazine.
In another snap, Rupert appears to nestle into Kristen's shoulder, even nibbling or offering a kiss as they were captured at Pacific View Trail - a lookout point with a view of the Hollywood sign.
A series of shots sees the pair caught in an embrace as the smiling actress leans against a ledge, while clutching her baseball cap, with Rupert gravitating towards her with open arms.
But perhaps the most unsettling pictures are those taken from inside a parked car, where Stewart and Sanders seem to be kissing.
A photographer told Us Weekly: 'He was all over her. (They) would only take a break when they thought someone was walking by. It seemed like they couldn't get enough.'
It is believed Kristen may have avoided being photographed if not for the timing of a phone call.
Kristen's alleged infidelity came just months after Robert gave an interview to Italian Vanity Fair magazine saying that he has 'never understood' people who cheat.