A suspended middle school teacher out on bail for allegedly having sex with two students will be back in court Tuesday after police say they caught her having sex with one of them again.

Stephanie Ragusa, 29, was arrested for the third time in about six weeks on charges of sex with a minor, MyFOXTampa reported. She was being held without bond at the Orient Road Jail.

"I can assure you that we are doing everything we can right now to make sure that shes not out at liberty to do this again," said Hillsborough County Sheriff's Lt. Fred Asteasuainzarra.

Officers discovered Ragusa and the now-16-year-old boy at his house about 12:20 p.m. Monday, the arrest affidavit states. Ragusa had gone to the teen's house to discuss the criminal case but wound up in bed with him, police said.

Detectives nabbed the woman as she was leaving and getting into her boyfriend's truck. Ragusa remained behind bars Tuesday, charged with two counts of unlawful sexual activity with a minor.

Ragusa was first arrested March 13 and charged with having sex at least three times with a Davidsen Middle School student, then 14, between January and May of 2007. During that relationship, police say she began another with a second Davidsen boy, who was 15 when they started sleeping together in February of 2007.

Ragusa and the second teen, who was one of her math students, had sex at least 20 times, according to the sheriff.

She was initially released March 18 after posting bail, but was re-arrested April 15 when investigators say they determined she'd had sex with a second student. She has been charged with several counts of lewd and lascivious battery.

Ragusa was previously arrested on charges of driving under the influence in 2005, according to police records.

She last taught at Martinez Middle School but remains suspended without pay, according to the Hillsborough County School District.