A pervert travelled more than 60 miles to Kent to sexually abuse an eight-year-old girl after making contact with her "mother" on the internet, a court heard.
Darren Andrews arrived in Maidstone with a bag containing stockings and thongs for the child to wear, two boxes of condoms and lubrication.
But the 33-year-old salesman was immediately arrested as a result of an undercover police sting.
Pervert Darren Andrews has been jailed for six years
When his home was searched, more than 110,000 indecent images and film clips of children were found on his computer, mobile phone and memory sticks.
Now, he has been jailed for six years - with an extended licence of five years - after a judge found he was a dangerous offender.
Andrews, of Cambridge Road, Aldershot, admitted assisting or facilitating the commission of child sex offences, assisting or facilitating child pornography, 16 offences of possessing indecent images of a child and one of distributing an indecent image of a child.
Maidstone Crown Court heard a police officer posed as the girl's mother who was in a relationship with another woman.
Prosecutor John Causer said a message was placed on a website that offered children for sex.
"I would love her to wear school uniform with, hopefully, a thong. Really excited now. I would like to take some pictures of her..." - pervert Darren Andrews to undercover officer
Calling himself Chris, Andrews made contact with the officer. Told it would be the girl's "first time", he replied: "That sounds great.
"I would love her to wear school uniform with, hopefully, a thong. Really excited now. I would like to take some pictures of her."
Andrews said he had "done it before" with a nine-year-old, but there was no evidence it was true, said Mr Causer.
A meeting was arranged at Clackett Lane services on the M25 on January 15 this year, when Andrews showed the officer an indecent picture of a girl aged about nine.
Two days later they arranged to meet at Mote Park leisure centre. He was arrested when he arrived in his car ready to abuse the girl.
He was arrested and the massive library of child abuse images at all levels of seriousness were uncovered.
When interviewed, he said he had been interested in children sexually for a couple of years and had exchanged images with others over the last year.
Darren Andrews was jailed at Maidstone Crown Court
Judge David Griffith-Jones QC told Andrews the many thousands of pictures he downloaded were plainly not enough to satisfy his urges.
"It revealed the depth of the depravity to which you were descending," he said. "You appear to appreciate you have a deviant sexual interest in children."
Andrews will have to serve two-thirds of the sentence before he will be considered for release. His name will appear on the sex offenders' register for life.
Peter Forbes, defending, said it was thankfully impossible for the abuse to reach fruition and the concern was what might have happened and the intention.
"He has been open and ready to acknowledge his unattractive interest in children sexually," he said. "One thing that does emerge to his credit is his openness.
"The court can take some comfort for the future. He has not attempted to make any excuses. The court process has brought everything to a head and forced him to confront his failings.
"The more that can be done to address his offending behaviour the better."