A magistrate denied bond Tuesday for a 39-year-old Villa Rica High School secretary who is accused of bringing at least three students to her house for sexual encounters.

Kristen Hammonds allegedly invited the teens – ages 17, 18 and 19 – to her house under the pretense of meeting her children, according to CBS Atlanta.

Carroll County deputies told CBS Atlanta the relationships started in February. Investigators said Hammonds admitted to having sex with one of the students.

"This was a consensual sexual encounter that occurred at her house," said Capt. Shane Taylor. "However, with her being in her position as administrative assistant at the school, these being high school students, even though they are of age ... this is a sexual assault."

Hammonds' bond was denied after the judge was told she allegedly contacted one of the teenagers Monday night and Tuesday morning.

Investigators said more charges may be filed against her.

Her lawyer, Mac Pilgrim, told CBS Atlanta that investigators have charged Hammonds with a crime that does not apply to her.

"It has been improperly charged," Pilgrim told the station. "Mrs. Hammonds was a secretary. She never had a position of authority. She was not in a position to do any sort of disciplinary action. ... Her job description for the school has no disciplinary or authoritative responsibility."

Under Georgia law, a person who has supervisory control over another person can be charged with sexual assault even if both people are adults.