Pupils from a high school in southern Israel were tickled to discover that their beloved gym teacher spends her evenings as a hard-hitting dominatrix at a sado-masochism club, media reported on Wednesday.

The unnamed sports teacher as she appeared in a reality show as an S&M mistress. (screen capture: HOT)

The unnamed sports teacher as she appeared in a reality show as an S&M mistress. (screen capture: HOT)

The revelation came after the hapless teacher was featured in a TV reality show during which she instructed couples on the ins and outs of female domination. The “Singles” show, broadcast on the Comedy Central channel of the HOT cable company, pits couples against each in a series of challenges.

In a recent episode participants visited an S&M club where an experienced dominatrix guided them in femdom sado-masochistic play. As each man was forced into humiliating acts, such as kissing his partner’s feet, the mistress demonstrated to the women the best technique for swinging a whip at his bottom and how to pole dance.

Amused pupils watching the show saw past her mask and skin-tight leather costume to identify the enthusiastic mistress of pleasure and pain as none other than their very own gym teacher.

Boosted by a wave of tattle on Facebook, the rumor spread throughout the school until even the principal learned something new about his employee. The unnamed woman, in her 40s, was summoned to his office and suspended from her post.

The unnamed sports teacher instructs on how to give a pole dance. (screen capture: HOT)

The unnamed sports teacher instructs on how to give a pole dance. (screen capture: HOT)

Pupils who feared, jeered, or perhaps even leered at the prospect of a good spanking from their now-notorious teacher will be disappointed, as the expectation is that she will lose her job, a move that has drawn criticism from the student body.

“We are all talking about it, but really, who cares?” one pupil told Yedioth Ahronoth. “It is her right to do what she wants in her spare time.”

The teacher was not available for comment. Her superiors said only that her appearance in the show was “not appropriate to the school’s values” and that in the coming days she will face a disciplinary hearing, Yedioth reported.