LATEST: SIR PAUL MCCARTNEY'S estranged wife Heather Mills is facing further public embarrassment after two more raunchy publications claiming to feature compromising pictures of her emerged. The former model, who split from MCCartney in May (06), has recently been accused of appearing in a "hardcore porn" shoot for a German book, as well as working as a high class prostitute before her marriage to the Beatles legend. She denies both charges. Now she'll have to battle two more allegations of appearing in X-rated US sex guide SEXUAL SECRETS and an explicit French magazine, according to British tabloid The Sun. A pal tells the newspaper the latest revelations are set to sicken her estranged husband: "This will be yet another bombshell for him. "Heather always insisted her modelling past just included a sex guide. But Paul's since been made aware just how pornographic some pictures are."