Heather's sex book shock

Heather Mills McCartney once posed naked for a German sex book, it has been revealed.The explicit images of the former model, completely nude and smothered in baby oil, were published in 1988 German book 'Die Freuden Der Liebe' - which translates as 'The Joys Of Love'.One of the shots shows the animal rights activist - who is currently divorcing former Beatle Sir Paul McCartney - apparently having sex with a male co-star.In other photos, 38-year-old Heather - who has a two-year-old daughter, Beatrice, with Paul - is handcuffed as a man peels off her stockings.While another shows her rubbing baby oil into the muscle-bound hunk.It was announced last month (05) that 63-year-old McCartney was divorcing his wife of four years.The divorce could reportedly earn Heather a staggering

£200 million divorce settlement.

According to reports, Sir Paul often turned a blind eye to his wife's past.

The former glamour model was recently hit by allegations made that she allegedly used to date rich benefactors while married to first husband Alfie Karmal.