By Daniel Bates

Osama bin Laden used to have sex with his first wife for days on end whenever he came back from waging Jihad.

The former Al Qaeda leader would vanish into his bedroom with Najwa bin Laden upon his return and not come out until they had properly reacquainted themselves.

Asked by an interviewer to name her favourite time when living with the terrorist, she replied: ‘The sleeping time’.

Najwa was the first of six wives of bin Laden and married him at the age of 17. They had ten children together but divorced before the 9/11 attacks.

She was interviewed by U.S. investigative reporter Jean Sasson for her biography but the journalist yesterday revealed details which have not come out before.

‘When I asked Najwa what her favourite time of day was, she admitted that it was “the sleeping time”,’ Sasson said.

She added that Najwa was not referring to actually going to sleep but ‘that’s when he (bin Laden) was giving her all his attention’.

‘Omar (her son) said that when he was a child, Osama would come home from Afghanistan and take Najwa into the bedroom and they wouldn’t come out for days,’ she said.

At the time of bin Laden’s killing, he was living with three later wives in a compound in Abbottabad in Pakistan where it has been reported that U.S. soldiers found herbal viagra.

Read more: DailyMail.CO.UK