Police are questioning a male prostitute who claims he was paid for sex by the husband of murdered honeymooner Anni Dewani.

Mrs Dewani was shot dead in Cape Town, South Africa, last month and local police believe her husband Shrien arranged for her to be killed by hitmen.

He has already faced questions about his sexuality and a 39-year-old German man is understood to have contacted British police to claim that Mr Dewani paid him for sex on three occasions.

According to the Sun, the escort told detectives at Scotland Yard that the pair had been in contact for months and had “kinky” sex in the Midlands and west London.

He said that Mr Dewani, a millionaire businessman, paid him a total of £1,100 in cash for his services between September 2009 and April of this year.

Mr Dewani is on £250,000 bail and strenuously denies having anything to do with his wife’s death.

He has also denied having sex with men and his spokesman, the PR guru Max Clifford, said: “It is categorically denied. Shrien Dewani has never had a sexual relationship with a man in his life.”

Mr Dewani’s lawyer said he had witnesses to corroborate his story.

He is currently fighting extradition to South Africa, where local police want to investigate him on suspicion of conspiracy to murder.

Mrs Dewani’s family have urged him to return to the country to “clear the doubts”.

She was initially thought to have been killed in a hijacking. Mr Dewani and their taxi driver Zola Tongo escaped unharmed.

Tongo was jailed for 18 years last week. His sentence was reduced from 25 years after he implicated the British businessman in the killing. Two other men are accused of murder, aggravated robbery and kidnapping.