A "committed paedophile" police officer told a 13-year-old girl to send him nude photographs captioned "I love you daddy", a court has heard.
The girl said she was "petrified" of Cheshire Police PC Ian Naude, 30, who denies rape and sexual assault.
A jury at Liverpool Crown Court heard Mr Naude of Market Drayton, Shropshire, would "pester" the teenager.
He has admitted sexual intercourse and sexual activity with a child but claims it was consensual.
Mr Naude met the teenager while attending a domestic incident at her home in October 2017, the trial heard previously.
'Creepier and creepier'
"He was just like 'send me nudes now'," the girl told police in an interview played to the court.
"He told me once to write that 'I love you daddy'. He's not my dad so I don't know why I'd do that."
She told police she was "petrified of speaking to him" as he became "creepier and creepier".
"He's a policeman so he could do anything to me," she added.
In one alleged assault last October, filmed on Mr Naude's phone, the PC drove the girl to a remote spot and raped her.
"I was trying to push him off but he wouldn't go," she said.
Belly button ring
Colleague PC Laura McCormick told the court she had spoken to Mr Naude about his behaviour with the girl, when they both went to her house.
She said: "I advised him that having a young child stood so closely to you isn't best practise and he should have put some distance between them."
Giving evidence, she added she was "really angry" when he said he had been into the child's bedroom and she had shown him her belly button ring.
The court also heard Mr Naude had shown interest in a unit which deals with vulnerable teenagers and children.
On Wednesday, prosecutor Owen Edwards said Mr Naude was a "committed paedophile" who joined the police to exploit the access he would get to vulnerable young girls.
The defendant has admitted 31 offences including inciting children to engage in sexual activity, causing children to watch a sexual act, engaging in sexual communications with children and misconduct in a public office.
He denies raping and sexually assaulting the 13-year-old, as well as four charges of attempting to arrange the commission of a child sex offence and one charge of arranging a child sex offence.
The trial continues.