HAINES CITY, Fla. -

Polk County deputies arrested a 41-year-old secretary at a Christian high school after they say she was having a sexual relationship with a 17-year-old student.

Trina Rocker, of Haines City, has been charged with five counts of unlawful sex with a minor and was arrested Monday, according to deputies. Detectives said Rocker, a secretary at Landmark Christian High School, was involved in the relationship from November 2011 through May 2012.

The victim told detectives he had intercourse with Rocker five separate times, including in her car, at a hotel during the senior trip and at Rocker's home.

Deputies said the victim's parents discovered the relationship and victim told his parents the sexual encounters occurred while he was a student at the school. The victim has since graduated and has no contact with Rocker, deputies said.

Rocker has been booked in Polk County Jail on no bond.