Italy’s former prime minister Silvio Berlusconi denied at his trial yesterday that he hosted raunchy parties, had sex with a 17-year-old prostitute or abused his powers by pressuring police officers.

Berlusconi is accused of paying for sex with Moroccan exotic dancer Karima El-Mahroug, better known by her stage name as ‘Ruby the Heart Stealer’. He is also charged with abusing his position as prime minister by telling police to release her when she was arrested for petty theft in May 2010.

“I never had an intimate relationship of any kind with her,” the 76-year-old told the court in only his second appearance at the trial in Milan, which began last year and has heard from witnesses describing stripshows at his home.

“I was sure she was 24, as she herself said,” said Berlusconi, who has kept a relatively low public profile since stepping down in November 2011 after dominating Italy’s political scene for much of the past two decades.

“I can exclude with absolute certainty that there were ever scenes of a sexual nature,” he said, referring to parties held at his villa near Milan.

“Everything happened in front of the staff and at times my children too came in to say hello,” said the billionaire, who has five children from two marriages that ended in divorce and often boasts of his playboy qualities.

A report in the Corriere della Sera daily said that the trial was “making him anxious, losing him sleep and spoiling his days”.

“He considers this a real persecution against him... and knows that it could really damage forever his image as a statesman,” the report said.

Berlusconi’s future is still a matter of heated political debate in Italy, with many supporters in the People of Freedom party that he founded calling for him to return to lead the party in a general election next year.

The ‘Bunga Bunga’ – described by many of his female guests as a type of lap dance that Berlusconi enjoyed – was “only a joke I used to tell which then got picked up by the press,” he told the court’s three female judges.

One witness earlier in the trial said she saw girls in nun costumes stripping for Berlusconi, another testified that she dressed up as late US soul singer Whitney Houston and US President Barack Obama before stripping off.

Several witnesses called by the prosecution said women were paid to attend the parties and given a bonus for having sex with Berlusconi. But the former premier said these descriptions constituted “a monstrous operation of defamation” and an intrusion into his private life.

“They were just dinners in which I monopolised the attention, singing, talking about sport and politics and gossiping.

“I never paid money to have intimate relationships with my female guests and my female guests could not be considered escorts,” he said.

He did, however, add that his accountant had given Mahroug “several thousand euros after Ruby’s constant requests”.