Six additional women have accused Russell Brand of sexual misconduct and predatory behaviour, according to an investigation by the Times and Sunday Times. Their accounts include allegations that he had sex with one woman without her consent and continued having sex with another despite her asking him to stop because she was in pain.

The report follows the 51-year-old comedian’s sentencing on Monday to more than 10 years in prison. He was convicted of raping a 21-year-old fan and sexually assaulting three women in separate incidents between 2004 and 2009. At Southwark crown court in London, he was acquitted of two other rape charges and one charge of attempted indecent assault.

One woman told the Times she began an intermittent relationship with Brand in the late 2000s after meeting him professionally at his London home. She alleged that, on one occasion in bed, she asked him to stop initiating sex because he was not wearing a condom. She said she tried to move away but could not, and decided against fighting because she feared what he might do. According to her account, Brand later apologised both face to face and in a text message.

A second woman said she was 19 when she encountered Brand while waiting with a friend to meet him in 2007. She alleged that he continued having sex with her after she said it hurt and asked him to stop. She told the newspapers that he subsequently described the encounter as consensual and said neither person had done anything against their wishes.

Another allegation came from a fan who was in her late 20s when she met Brand following his performance at The Chapel in San Francisco in 2013. She alleged that he handled her forcefully and pushed his hand down her trousers. Separately, a woman who was in her mid-20s said Brand approached her at a music festival in 2005, asked her for sex and offered to pay.

A woman who won a BBC 6 Music competition in 2006 and appeared as a guest on Brand’s show also described alleged misconduct. Then in her late 20s, she said they saw each other occasionally over the following year. She alleged that he instructed her to lick a toilet seat at his home and became angry when she refused.

The sixth woman worked at a London venue Brand regularly visited in 2015. She said a member of his staff directed her to an accessible toilet, saying Brand wanted her. According to her account, the lights were off when she entered, and Brand asked for toilet paper before grabbing her as she handed it over.

Publication of the allegations was delayed until the criminal proceedings concluded to avoid prejudicing the case. The Times said substantial efforts had been made to corroborate the accounts and that the sources received no payment.

The newspapers said they sought Brand’s response through his legal representatives after Monday’s conviction. His lawyer reportedly raised the possibility of seeking an injunction, but no response to the allegations arrived despite an extension and an agreed deadline. Brand has previously denied wrongdoing and maintained that all his relationships were consensual. His lawyer was also contacted for comment.

Prime minister Andy Burnham urged the media industry to examine its conduct and take action to protect women and girls following Brand’s conviction and separate misconduct allegations against David Walliams reported by the Guardian and ITV News. Walliams has denied those allegations.