Rachel Bilson covers Cosmo UK, admits she was ‘a dumb ass’ on ‘The O.C.’: Viewing Photo You are viewing the page for a single photo. Click here to return to the post or view more photos in the gallery below << last image next image >> << last image next image >> Return to the post: Rachel Bilson covers Cosmo UK, admits she was ‘a dumb ass’ on ‘The O.C.’