Jurors have started discussions on whether the South Yorkshire ex-lover of paedophile rock star Ian Watkins had legitimate reasons for possessing indecent images of children.
Joanne Mjadzelics, of Thorne Road, Doncaster, is on trial at Cardiff Crown Court accused of seven charges.
The prosecution say the former prostitute was obsessed with the Lostprophets singer and would do anything to fuel his depraved desires.
Mjadzelics, aged 39, is charged with four counts of possessing indecent images of a child, one of inciting Watkins to send her illegal photographs and two of sending pictures to Watkins.
Watkins is currently serving a 35 year custodial term for a string of sex offences - including the attempted rape of a fan’s baby.
Mjadzelics’ defence is she was trying to entrap Watkins and bring him to justice by collecting evidence on his sex offending.
She insists she had reported Watkins to police before, but was not taken seriously - and was regarded by officers as a ‘nut job’ and a spurned ex-girlfriend who was a ‘nuisance’.
The Recorder of Cardiff Judge Eleri Rees told the jury that elements of the case would fill them with revulsion - but they must reach their verdicts ‘objectively and dispassionately’.
She added: “You must reach your decision based on what you have heard in this court room - not on anything that you have seen or heard outside it.”
Mjadzelics’ trial heard that she met Watkins via the internet in 2006. The pair met in person for the first time a few months later at a hotel in Leeds, where they had sex.
In 2007, Watkins talked to Mjadzelics about having sex with younger girls while the pair had cocaine-fuelled sex sessions.
The court heard Mjadzelics became besotted about Watkins - and later had his initials tattooed on her back.
The trial continues.