A temporary teacher with a secondary school in Seremban was almost fooled into having sex with her colleague after he pretended to be an undercover special health officer researching "diseases affecting female teachers."

The teacher - known only as Hani - claimed that the married man in his 30s had even asked for his undercover identity to be kept from his wife, who is teaching in the same school, and from the school principal.

In a report in Kosmo!, Hani, 24, said the teacher had told her that his research comprised three phases, the first of which would require her to answer questions on the size of her breasts and waist.

She would then be required to get intimate with the teacher in the second phase and finally, have sex with him under the third phase, which was also a "weight test".

Hani alleged that she had signed an agreement as well as a confidentiality form to participate in the study after the teacher approached her in March.

The "study" then moved onto the next phase, in which Hani said she was told to go to an empty classroom.

"In the classroom, he hugged me from behind before performing other sexual acts on me," she said, adding that she pushed the man away after suspecting something was amiss.

"The next phase was even worse when he asked me to have sex with him," she said, claiming that during this time, the teacher was stark naked and getting ready to film the sex romp.

"Frightened, I then fled from the classroom," said Hani.

Since that day, Hani alleged the teacher has been harrassing her through phone messages, asking her for money as "penalty" for not completing the study and claiming that she could be "sued" by the Education Ministry.

The man even claimed that the Public Services Department could take action against her and her other family members serving in the Government.

"I lodged a police report on Aug 18 after I could no longer take his harassment. I have also filed a complaint with both the Health and Education Ministries and the department," said Hani.

She said she also believed that the teacher had "conned" other victims in the school but that they were reluctant to come forward.

The teacher was subsequently remanded for seven days before being released and is said to be still teaching in the same school.

State education director Datuk Abdullah Muhamad confirmed the case was still under investigation and the matter would be brought up to the ministry.

Jempol Chief Police Officer Supt Mohd Sabri Muhamad@Awang also confirmed the incident.