Media reports said parents at Lynne Tziolas's Sydney school had rallied around the 24-year-old, organising a petition demanding her reinstatement.

Ms Tziolas, who has taught five-to-six-year-olds at Narraweena Public School for the past two years, appeared in a photo spread in a sealed section of women's magazine Cleo with her husband Antonios this month.

She was dismissed last Friday over the article, in which she discussed details of her sex life, News Limited newspapers reported.

Ms Tziolas told the Manly Daily newspaper she was shocked at her sacking and would pursue an unfair dismissal claim.

'It was very tasteful and I need to make it known that in no way do I ever let my private life affect or influence the content I disseminate in the classroom,' she told the newspaper.

'I could understand if I was a high school teacher, but I'm a primary school teacher and this appeared in a women's adult magazine.' Parents from the school believed the popular teacher was wrongly dismissed and more than 40 had signed a petition supporting her, the newspaper reported.

'We believe she was wrongfully dismissed and we should have been consulted before a decision was made,' the petition reads. 'Ms. Tziolas is a great teacher who is very popular with students, staff and parents.' -- AFP