Hollywood hunks Josh Holloway, Matthew Fox and Dominic Monaghan have been banned from getting naked while filming hit show Lost in Hawaii - after producers expressed concern about their skinny-dipping. The trio have made no secret of their love for stripping off in between shoots - but producers are forcing the stars to keep their clothes on in case a photographer catches them in the nude. An insider says, "Producers are worried they are taking unnecessary risks in terms of their image."