Robert Pattinson is staying at Reese Witherspoon's vacation home

Robert Pattinson is getting by with a little help from his friends.

A week after girlfriend Kristen Stewart admitted to cheating on him, R-Patz is hiding out at good pal Reese Witherspoon's vacation home.

According to Us Weekly, Witherspoon - who co-starred with Pattinson, 26, in "Water for Elephants" - is letting the "Twilight" hunk stay at her $7 million ranch in Ojai, Calif. Witherspoon and hubby Jim Toth married at the gorgeous pad last year.

Reportedly, Pattinson has moved out of the L.A. home he and Stewart, 22, shared.

Last week, Stewart admitted to having a fling with her much-older married "Snow White and the Huntsman" director Rupert Sanders, issuing a very public, over-the-top apology to her boyfriend of three years, saying in a statement: "This momentary indiscretion has jeopardized 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."