A former social worker in Illinois is charged with having sexual relationships with two mental patients — one of whom claims she kept him as her “sex slave.”

Christy Lenhardt, 53, was arrested Thursday on 14 felony counts stemming from alleged sexual abuse at Elgin Mental Health Center, the Chicago Tribune reported.

The social worker is the subject of two lawsuits that claim she manipulated and seduced her clients.

In a suit filed in November, patient Benahdam Hurt accused her of grooming him to be her “sex slave.” He claimed that she spent months seducing him using lavish gifts before they had sex at the state mental institution.

For more than three years, starting in 2014, the pair allegedly were sexually involved and had encounters in her office and his bedroom, the Chicago Tribune reported.

“She engaged in all kinds of various sexual misconduct,” Hurt’s attorney, Joe Cecala, told news station WBBM. “The graphic details are every sex act that you can imagine.”

Another lawsuit filed by patient Mark Owens claimed that Lenhardt “basically threatened” him with a change in his medication and diagnosis if he refused her advances, according to the Chicago Daily Herald.

Both suits are seeking $10 million in damages.

Lenhardt was released from jail Thursday after posting $10,000 bail.

If convicted, she could face up to five years in prison.