Paul Anthony Menchaca, 31, was arrested at his Arizona home earlier this month.
Three female carers responded to adverts allegedly posted on CareLinx, a website designed to help families find help.
One of the carers, who remains anonymous, claims she was told to bathe Menchaca and change his nappy 30 times.
On five separate occasions, Menchaca is said to have insisted she clean his genitals more thoroughly.
Once she quit, the next two women also claimed he would become sexually aroused when they bathed him.
It was only when they all followed him back to his parents’ house that they discovered he did not have Down syndrome.
After being confronted, Menchaca reportedly admitted to lying about having Down syndrome.
The arrest warrant read: “All three victims were paid in cash by [Menchaca] when they picked him up and dropped him off from neutral locations.”
Maricopa County Sheriff’s Office
(Pic: Maricopa County Sheriff’s Office)
Menchaca had been employed as a crossing guard for a local school district. He resigned on August 31.
He now faces multiple charges of fraud and sexual abuse. He is expected to appear in court later this month.
Daily Star Online approached the Maricopa County Sheriff’s Office for comment.