A Leesburg preschool teacher charged with sexually assaulting two 4-year-old girls is negotiating a plea agreement with the Loudoun County Commonwealth Attorney’s Office, his attorney said.

At a review hearing Monday in Loudoun County Circuit Court, the defense attorney for Brad R. Minor, 23, requested a continuance in the case so that plea negotiations between the prosecution and defense could continue, adding that the two sides were close to settling the case.

Minor was charged in July in the alleged sexual abuse of two students at Chesterbrook Academy Preschool, a private school in Leesburg with about 100 students ages 3 to 5. Minor was indicted by a Loudoun grand jury in September on charges of indecent liberties with a child, forcible sodomy and aggravated sexual battery.

The investigation began March 7, when the mother of a 4-year-old girl filed a complaint with Leesburg police. According to court records, the girl told her mother that “Mr. Brad” had inappropriate contact with her.

Officials at Chesterbrook Academy were notified of the allegations against Minor after the complaint was filed, Chesterbrook Academy spokeswoman Kathleen Shaffer said, and Minor was placed on leave immediately.

Shaffer previously told The Washington Post that the school later received a letter, dated April 27, from Loudoun County Child Protective Services stating that “the case was closed and the claim unfounded.” Following receipt of the letter, Minor was reinstated from leave May 3, Shaffer said.

Minor remained employed by the preschool until July 6, when he was fired after his July 5 arrest in connection with the alleged assault in March.

The family of a second 4-year-old girl contacted police July 6, and Minor was charged July 11 with aggravated sexual battery in connection to that case.

Investigators have declined to state the date of the second assault or whether it occurred while Minor was reinstated at Chesterbrook Academy. The lawyer handling the case for the Commonwealth Attorney’s Office could not be reached for comment Tuesday.

Jeff Dube, a spokesman for the Leesburg police, told The Post in July that he could not comment on any actions taken by Child Protective Services but that the case was never closed by police.

Officials with Child Protective Services have declined to comment on the case, citing confidentiality laws.

Two police investigators and one forensic expert testified at a preliminary hearing in August that authorities collected clothing belonging to the first 4-year-old child, as well as bedding on which the girl was sitting at the time of the alleged assault.

The examination of a semen sample taken from the outside leg of the girl’s pants was a match to Minor’s DNA, according to the forensic expert.

Minor was hired at the school in late October 2009, Shaffer said. The school conducted a criminal background check and found no record of criminal activity or child abuse, she said.

Clad in an orange jumpsuit, with his previously long hair cut short, Minor showed no emotion during his court appearance Monday. Several family members sat quietly in the back of the courtroom during the brief proceeding.

A hearing is scheduled in the case for Dec. 7.