A friend of Mayor Eric Adams has been accused of being a fraudster who conned his girlfriend out of thousands threatening to tell her family she had been sleeping with a married man if she tried to sue him.

Champagne magnate William Benson, 39, flew insurance executive Stephanie Delpe around the world and showered her in expensive gifts before she realised that he was conning her – handing over more than $188k to the con-man.

He approached her at a networking event in Newark in 2016, and bragged that he had just landed on his private jet – before taking her out to luxury celebrity hotspots in New York.

Benson also bragged to her that he knew the New York City Mayor – regularly posting him and other celebrities, including DJ Khaled, on his social media.

He flew insurance executive Stephanie Delpe around the world and showered her in expensive gifts before she realised that he was conning her – handing over more than $188k to the con-man

Delpe, who is now married with children, believes that the champagne mogul name-dropped Adams to get people to trust him – with others coming forward and telling the New York Post he had conned them out of money.

Benson posted a screenshot of himself FaceTiming with the Mayor with the caption: ‘Just two ‘Goats’ trying to change the world.’

He regularly shared photos of the two out to dinner together, with his…