A new biography of Marlon Brando is expected to cause friction - as it reportedly features a photograph of the screen star engaging in oral sex with another man.

BRANDO UNZIPPED by DARWIN PORTER exposes the ON THE WATERFRONT actor as a prize lothario, romping his way through Hollywood with the biggest names, both male and female.

The sensational tome says, "From Rock Hudson to Vivien Leigh, from Bette Davis to Cary Grant, Brando slept around, even managing to seduce two of America's First Ladies."

Publishing group Blood Moon insist the jaw-dropping image of Brando and a male lover may come as a surprise, but it is treated "tastefully" .

Spokesperson DANFORTH PRINCE tells the New York Daily News, "We ran it at a tasteful two inches by one and three-quarter inches on page 404."