GRAND RAPIDS, MI -- The relationship between a student and a Grand Rapids Catholic schools worker came to light when the boy’s mother found text messages that included photos of the woman in a garter belt, police said in court records.

Abigail Marie Simon, 33, is expected to be arraigned this afternoon in Grand Rapids District Court. She is charged with first-degree criminal sexual conduct, a potential life offense, and accosting a minor for immoral purposes.

She was arrested Thursday at her Grand Blanc home.

She is held in the Kent County Correctional Facility.

Related: Former Grand Rapids Catholic schools assistant had sex with 16-year-old student, police say

Grand Rapids Police Detective Amy Lowrie, in obtaining warrants, said that Simon was a tutor and study-hall teacher at Catholic Central and West Catholic high schools, according to a transcript obtained Friday, Aug. 9.

“In April of this year I started an investigation when the mother of her 15-year-old victim found text messages between the victim and Abigail Simon of a sexual nature, as well as photographs of Ms. Simon in a garter belt."

Lowrie said that the alleged victim initially told police the two had sexual contact but “then recanted that testimony, and then recently has admitted that there was sexual contact again. And the text messages that were found in both of their phones support there was a sexual relationship."

John Agar covers crime for MLive/Grand Rapids Press E-mail John Agar: jagar@mlive.com and follow him on Twitter at twitter.com/ReporterJAgar