Adolf Hitler indulged in sickening sexual fetishes and even made his own niece act them out, it has been claimed.

A psychological profile compiled by U.S. spies revealed the Fuhrer was a coprophiliac – someone who gets sexual pleasure from faeces.

He reportedly forced his niece Geli Raubal to engage in disturbing sex acts.

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Coprophiliac: Adolf Hitler indulged in sickening sex fetishes and even made his own niece, Geli Raubal (pictured above) act out his fantasy, according to a psychological profile by the U.S. intelligence agency

The claims were made in a report called 'A Psychological Analysis of Adolph Hitler: His Life and Legend' (left) by the U.S. intelligence agency which was later turned into a book called The Mind of Adolf Hitler (right)

The claims are the latest to emerge about Hitler's sex life after reports that he had a tiny penis and did actually only have one testicle.

They were made in a report called 'A Psychological Analysis of Adolph Hitler: His Life and Legend' which was compiled by the U.S. intelligence agency to find out what made him tick.

The report's author, Dr Walter C Langer, discovered the Nazi leader's bizarre fetish after gathering evidence from informers, it was reported by The Daily Star.

Dr Langer said: 'We must not suppose that Hitler gratifies his strange perversion frequently.

'Patients of this type rarely do and in Hitler's case it is highly probable that he has permitted himself to go this far only with his niece, Geli.

'The practice of this perversion represents the lowest depths of degradation.'

Hitler's niece is believed to have confessed about his fetish to the Fuhrer's friend Otto Strasser (pictured)

Miss Raubal was found dead shortly after reportedly engaging in one these sex sessions.

She had been shot with Hitler's gun, but police ruled her death as suicide.

She had, however, confessed about his fantasy to the Fuhrer's friend, Otto Strasser, who was forced to flee the country, it is believed, because Hitler suspected his secret was out.

Ernst Rohm, the head of the Nazi Brown Shirts, also once remarked about his sexual fantasies on an evening out, the report claimed.

He was later killed in The Night of the Long Knives in 1934 in a purge of SA leaders who had angered Hitler.

The report was later made into a book called 'The Mind Of Adolf Hitler: The Secret Wartime Report'.

The report also said that German film star Renate Müller once revealed that Hitler forced her to kick him as he lay curled up on the floor.