Russell Brand's bad behaviour was "normalised" and he was sleeping with women "day and night", his former personal assistant told the court on Monday.

Helen Berger, who worked for the comedian between June 2006 and February 2007, described the role as "one of the hardest jobs I did" and recalled he was always in his underwear when she went to his flat.

"When I went to Russell's flat he was always in his underwear as he loved walking around in his underwear with no shirt on," she said in a statement read to Southwark Crown Court by prosecutor Riel Karmy-Jones KC.