A Colombian teacher forced high-school students to have sex with her in order to get good grades.

Yokasta M, 40, groomed teenage boys at at an undisclosed school in Medellin, Colombia, and would threaten to fail them if they did not sleep with her.

The married teacher was caught after a student told his parents, and in addition to a divorce, she is now facing 40 years in jail.

Scroll down for video

Predator: Yokasta M. would approach teenage boys in class at a school and ask for their phone number to 'help them with their studies'

The incidents took place between January and April 2016, Canal 4 reports.

The teacher approached her students aged 16 and 17 on social media or asked for their phone numbers in class to 'help with their studies'.

She allegedly used WhatsApp messenger to send explicit images and proposals to her students.

Dozens of photos sent to the teenagers show Yokasta M. posing in underwear or a bikini, and sometimes only covering her modesty with her hands or fluffy toys.

Grooming: If the students did not comply and sleep with her, she would threaten to fail them. Yokasta M was not caught for months, and neither parents nor school knew of her abuse until a father found images on his son's mobile phone

Crime spree: The incidents took place in Medellin, Colombia between January and April 2016

She reportedly invited the teenage boys to her flat where she made them engage in sex acts by telling them that she would fail them if they refused.

The married 40-year-old's cover was finally blown by a father of one of her victims, who checked his son's mobile phone.

She is now facing a substantial jail sentence and her husband has filed for divorce.

Once she was arrested, one of her students posed some of the images she had sent them online.

The trove of images were captioned: 'This is the teacher Yokasta, who tells us that she disapproves of us if we do not have relations with her. '

As a result, the story went viral across South America, with reactions varying from outrage to jokes that the teenagers were 'probably not complaining'.



