Court revealed that a 35-year-old teacher had sex with a boy, 15, in 'her favorite sex position' and then shared her topless photos with the student.
Kandice Barber, of Wendover, Buckinghamshire, is accused of having sex with the teenager three times.
Aylesbury Crown Court heard that the mom of three even told the boy that he had a bigger penis than her husband.
The teacher also told the teen she was pregnant with his child, according to court documents.
In her arraignment, Judge Francis Sheridan said:
"We saw the conversation between her and her husband. And saw what he said there about her 'favorite position.'"
The boy had also claimed they had sex in the same position while speaking to the police.
Barber's teacher, who has school-age kids of her own, sent the boy a topless photo on Snapchat after they first had sex.
They later met up for sex two other times as the photos began circulating the school.
The school headmaster became aware of the photo. After questioning the boy, he denied having a sexual affair with the teacher.
During his police interview, the boy told officers:
"I lied because she had told me she could be pregnant with my child, and I began to panic. I lied to pretty much everyone except my friends."
"She said that if I was going to snitch, snake on her basically, she was going to bring me down with her."
"I was like, are you going to accuse me of rape? She was like... Obviously, I got angry, and I did not talk to her after that."
Other pupils also saw the picture, messages, and a video, proving Barber had an affair with the student.
One schoolboy claimed he saw messages from the teacher, asking:
"Do you prefer boobs or bum?"
In court, the teacher denied having sex with the boy. She claimed her baby, which she later lost, was her husband's, Daniel Barber.
She also claimed the boy was just 'infatuated and obsessed' with her but admitted to Snapchatting him 'for a few weeks.'
Barber also denied three counts of causing or inciting a minor to engage in a sexual act.
Meanwhile, Barber had searched 'what is the name of someone you are having an affair with?' and the word 'alibi' on Google.
She searched 'a lie of where you have been' and later searching 'good secluded areas.'
When prosecutors asked her about the 'searches,' however, she claimed she was just trying to find the name of the film Fatal Attraction.
She also said that she only searched about 'secluded areas' for her dog walks.
The trial continues.