Amy Winehouse's ex-husband Blake Fielder-Civil would charge his wife £150 a kiss to fund his crack cocaine and heroin habit, The Sun reports today.

A source told the tabloid that Fielder-Civil – who is currently serving a prison sentence for burglary – would demand cash in return for affection whenever his wife asked for a kiss or a cuddle.

The source added that Amy had probably given a total of around £250,000 to her husband over the course of their relationship.

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Amy – who died in July aged just 27 – married Fielder-Civil in 2007. They divorced just two years later. It is reported that the soul singer left her ex-husband out of her will.

Following her death, Fielder-Civil told the press that he did not get Amy into hard drugs – as is widely believed – but was present the first time she took heroin.

He added that their relationship had suffered because of their heroin addiction, telling Channel 5: "You can't have a relationship and be a heroin addict… you can’t sustain love for each other when you’re constantly fighting over a bit of gear."

Winehouse had been enjoying a new relationship with film director Reg Traviss before she died. He has reportedly described her death as a terrible accident. Results from a toxicology test in August showed that there had been no illegal drugs in her system when she died. The official cause of death will not be known until an inquest verdict is announced in October.