In less than a year he sent 450 messages claiming her would expose his victims, who lived across the UK.
Wilson, who lives with his parents in Woodlands, Longforgan, admitted a catalogue of revenge porn extortion and child pornography distribution charges at Perth Sheriff Court today.
He 'directed' another using the pseudonym Alex Moore and told her to give her name and age and say: 'I'm Alex's little girl.' Wilson told one girl that unless she obeyed his increasingly explicit requests, he would send the photos to her family and they would think she was a 's***'.
In one form, this fantasy sex is accomplished by the participants describing their actions and responding to their chat partners in a mostly written form designed to stimulate their own sexual feelings and fantasies.
Sheriff Gillian Wade told Wilson to expect a custodial sentence.
He was remanded in custody pending reports and he was added to the Sex Offenders Register.
He said Wilson would then persuade the girls to send pictures of themselves in various states of undress.
After obtaining one explicit photo, he threatened to send it to friends and family if they did not comply with his requests.