A gymnastics coach has been jailed for secretly abusing young children to satisfy his bizarre foot fetish.
Luke Griffin, 20, groomed eight young victims over more than two years - by licking and tickling their feet for sex kicks.
A court heard Griffin filmed himself on his mobile phone as he carried out his foot fantasy on the youngsters.
Griffin targeted seven girls and one boy aged between seven and ten at a community gym where he gave lessons in acrobatics and fitness.
His defence counsel Andrew Taylor said: "He has had a foot fetish since he was younger and has had sexual fantasies.
"Griffin said he's been stupid and abused his position of trust. He got sexual gratification from it."
Griffin, of Cardiff, South Wales, assaulted most of his victims as he gave them lifts to and from the gym.
Cardiff Crown Court heard in some cases Griffin tied little girls' ankles before tickling them with a hair brush and licking their feet.
He bit another little girl on the foot and also tied up one terrified girl and shut her in the boot of his car for a few minutes.
A girl told how Griffin sexually abused her by tickling and licking her feet for his sexual gratification - and she later used coloured pencils to sketch what had happened in his car.
Prosecutor Caroline Rees said: "He abused the trust of parents who had a high degree of trust in him and showed him esteem.
"They are devastated at his abuse of their trust. He would arrange lifts to and from the club.
"He was doing that for the purpose of gaining access to the children away from their parents.
The court heard he targeted his "favourites" from the gym which cannot be named to protect the children.
After Griffin imprisoned a girl in the boot of his car he threatened her not to tell anyone otherwise he would "get her mum in the night".
He used force to restrain another victim and told her it was their secret and bribed another girl with 50p and £1 not to say anything.
Mrs Rees added: "It was a deliberate and sophisticated targeting and grooming of children who were easily manipulated."
She said the children were all primary school pupils.
He also abused children he was babysitting for friends.
Griffin admitted 13 counts of sexual assault of children under 13 and one of false imprisonment. He was jailed today for six years.
More than 20 parents and family friends were in Cardiff Crown Court as Griffin, wearing a casual LA-brand T-shirt showed no reaction when he was jailed.
The court heard Griffin had shown "genuine remorse" over his abuse.
Sentencing Griffin, Patrick Curran QC said: "This involved the grossest breach of trust.
"You adopted a method of selecting certain parents and certain children and targeted and groomed the children who were vulnerable .
"Each child has been profoundly affected by someone they trusted and each parent profoundly affected after the trust they had placed in you."
Griffin was made the subject of a sexual harm prevention order which bars him from having contact with anyone under the age of 18 and made to sign a sexual offenders register.
He will serve six years in a young offenders institution.
After being sentenced for his foot sex fetish, police described him as a "dangerous offender."
Detective Sergeant Annalisa Bartley said: "As a result of today's proceedings, a dangerous and manipulative sex offender has been brought to justice.
"This was a particularly serious case as Luke Griffin abused a position of trust to deceive decent, trusting people in order to gain access to their children.
"Today's sentence is the result of a lot of hard work from a number of agencies, so today I speak on behalf of them all, in commending all of the families affected by Griffin's crimes, for their outstanding support during what has been such a difficult time for them.
"They have been on a harrowing journey, having to listen to and try to come to terms with what their children have been though. But, they have conducted themselves with utmost dignity and self-discipline.
"Most of all, we must focus on the child victims in this case. Despite being so young and often very frightened, they have shown remarkable bravery in coming forward and giving their evidence. It is because of their courage that Luke Griffith is behind bars today."
Wendy Brady, Senior Crown Prosecutor for the Crown Prosecution Service Cymru-Wales Rape and Serious Sexual Offences Unit, said: "Luke Griffin abused a position of trust by repeatedly sexually assaulting children in his care.
"He was trusted to escort his young victims to sports events, but instead he took the opportunity to abuse them.
"His particular foot fetish was described by a number of his victims and the similarities in their accounts added to the strength of the evidence against him.
"I hope that today's sentencing will be of some comfort to his young victims as well as their families, who continue to support them in dealing with the effects of Griffin's actions."