A HOME economics teacher got more than she bargained for when tasting pupil's pastries which contained a disgusting secret ingredient - SEMEN.

Three students went to the bathroom and masturbated into containers before adding their bodily fluids to icing for the top of the sweet treats on Thursday.

2 The students were making turnovers when they decided to play a cruel prank on their teacher Credit: Getty Images

The boys, students at Westside High School in Omaha, Nebraska, USA, were aged 14 and 15 and were caught out when another pupil overheard their plans and told the teacher - but not before she had tasted one of the turnovers and 'noticed something amiss'.

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According to the Omaha World Herald they were interviewed by school officials and two boys admitted they did it, with the third claiming he 'chickened out' and was too scared to go through with it.

Police were called and seized the icing containers.

A spokesperson for the school told KETV NewsWatch 7 the pupils will be disciplined and that officials "are working with Omaha police to determine what, if any, criminal citations are issued".

They said: "An incident took place Thursday at Westside High School involving three students and a staff member.

"We are not commenting on specifics involved in this case, other than to say we offer our complete support to the staff member involved, and we are working with Omaha Police to determine what/if any criminal citations are issued."

2 The pupils go to Westside High School in Omaha Credit: Google Maps Streetview

"These students will face consequences, but per district policy, we cannot release specifics regarding the course of punishment.

"This incident is not indicative of Westside High School or any of our schools, environments that promote respect for all of our staff members and students."

The culprits face misdemeanour disturbing the peace charges, and their cases will be taken to juvenile court.

Police were hoping they could be charged but there is no state law that governs this type of behaviour.

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