Married teacher bombarded pupils with half-naked pics and threatened to fail them if they didnt h

A COLOMBIAN high school teacher forced students to have sex with her - and threatened to fail them if they didn't.

The 40-year-old teacher, known only as Yokasta M, groomed teenage boys at at an undisclosed school in Medellin, Colombia, by bombarding them with racy snaps between January and April 2016.

She allegedly asked up to 40 16-year-old boys for their numbers "to help with their studies".

But she then used WhatsApp to send the boys hundreds of scantily-clad snaps of herself in underwear or a bikini, sometimes only covering herself with hands or fluffy toys.

She then invited dozens of students back to her flat, ordered them to perform sex acts on her by threatening to fail their classes if they refused.

The sick pervert was finally exposed when a father of one of her victims discovered the snaps after checking his son's mobile phone.

Her husband has filed for divorce, and could face up to 40 years behind bars if convicted.

After her arrest, one of her students posted a cache of the x-rated images online.

He said: "This is the teacher Yokasta, who tells us that she disapproves of us if we do not have relations with her."

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