A teenager filmed a young girl performing a sex act on a gang member and then sent the clip to him and others, a court heard.

Kristian Petik filmed the girl with David Spiridon in a car park stairwell at The Pentagon shopping centre in Chatham in March last year.

The 18-year-old Slovakian also forwarded the clips to two other friends and Spiridon's then girlfriend, Maidstone Crown Court was told.

Spiridon, then 16, was later convicted of the oral rape of another teenage girl in the multi-storey car park on the same day and sentenced to nine years youth custody.

Appearing by video link with Elmley Prison, earlier today, JAN2 Petik, of Chamberlain Road, Chatham, admitted one offence of taking an indecent moving image of a child and three offences of distributing the images.

Judge Philip St John-Stevens warned the teenager custody was inevitable when adjourning sentence to a two-week period beginning February 11.

"It will inevitably be a custodial sentence but the length of that sentence will be determined on that day," he added.

He was remanded in custody.

Spiridon, now 17, was also charged with orally raping the girl but the Crown Prosecution Service decided there was not a realistic prospect of conviction.

In September last year he denied two charges of raping the other girl and was convicted.

Wearing a mask or a balaclava, he took his 15-year-old victim into the stairwell and forced her to perform the sex act.

The court heard she went with Spiridon because she knew he was a member of a local gang known as C4, and he had shown her a kitchen knife hidden under his jacket.

She said she feared she would be stabbed if she did not do as he said.

Judge Adele Williams told Spiridon, of Sydney Street, Chatham: “You treated her as an object – an object to provide you with sexual gratification. You didn’t see her as a human being.

You used her. She was a vulnerable 15-year-old. You humiliated her and degraded her. You intimidated her and put her in fear in order to ensure she would do as you told her.”

The judge lifted an order which had previously banned his identification.