Brittany Zamora, 28, pleaded guilty to having sex with a boy, 13, after she was caught sending him messages when his parents started monitoring his phone with an app

A former Arizona teacher has pleaded guilty to having sex with a 13-year-old boy after she was caught sending him lewd messages when his parents started monitoring his phone with an app.

Brittany Zamora, 28, entered her guilty plea to sexual conduct with a minor, molestation of a child and public sexual indecency, on Tuesday, according to online records.

Zamora, who taught sixth-grade at Las Brisas Academy, was arrested in March 2018.

She was accused of having sex with the teen multiple times in a classroom, and on one occasion in front of another student while he served as a lookout.

Zamora was caught when the victim's parents noticed he was acting strange, leading them to install an app on his phone called Sentry Parental Control, which monitors messaging apps for 'suspicious content or behavior'.

The Sentry app sends parents alerts when it detects suspicious images and messages on a child's device.

It also detects whether or not a child is exposed to inappropriate online content through its web monitoring feature.

When the teen's parents started getting the alerts about inappropriate text messages, they confronted him.

That's when the teen admitted to having sex with Zamora.

Zamora was caught when the victim's parents noticed he was acting strange, leading them to install an app on his phone called Sentry Parental Control, which monitors messaging apps for 'suspicious content or behavior'

Zamora, who taught sixth-grade at Las Brisas Academy, was arrested in March 2018. She was accused of having sex with the teen multiple times in a classroom (pictured), and on one occasion in front of another student while he served as a lookout

The boys parents were devastated by the affair.

'His childhood is already gone,' the boy's father says in an interview with law enforcement. 'He's 13.'

The child's stepmother quietly cried as she told police how they confronted him.

'"So we just need you to tell us the truth,"...we showed him the conversation and we said, "Who is this? Who are you talking to?" And he said, "My teacher."

'So then my husband—we are very blunt with our kids. We are open and we have had conversations with him growing up and all that. And so my husband just told him, "'Have you done anything with your teacher? Did you have sex with your teacher?"

'And he said "yes."'

Their affair began after she told students to contact her using an app called Class Craft because, according to records, she was bored in class one day.

Her messages with the boy soon turned romantic and the pair started having sex, according to prosecutors.

These are some of the text messages exchanged between the teenage boy and the teacher

The teen sent her love notes on bright post-its including one which read 'U R SEXY!' which he passed her in class

The schoolboy sent these notes too which included hearts and some of their initials

Prosecutors said the pair once even touched each other sexually while other students in the class watched a video.

In one x-rated back-and-forth, Zamora told the boy she wanted to have sex with him 'every day with no time limit'.

'Wyd?' she started one conversation with him, using the slang-abbreviation for 'what are you doing?'

He replied: 'Thinking about your sexy self' and added two pink heart emojis.

'Aww baby (love heart eyes emoji) I wish you were with me,' she responded.

The boy replied: 'I want u bby. (sic).. when can we f**k again?', this time adding two red heart emojis to his message.

Zamora is married. According to police, she had sex with the 13-year-old boy twice in her car outside his grandparents' house while her husband, Daniel (pictured together), was fishing

Zamora hit back: 'I want you too baby so bad! Whenever we can you know I'm down,' with a red heart emoji.

She went on: 'Like you for real get sexier to me every day lol.'

'I want to f**k you so bad baby those times weren't enough,' the boy replied to her. She responded: 'Me neither baby! I want you every day with no time limit.'

In another message, she told him she would quit her job in order for them to be together.

Zamora is shown after being booked into jail in March when she told police she was worried she would be picked on because she is 'little'

On two occasions, she drove to his grandparents' home to have sex with him in her car while her husband was fishing.

She and the boy performed oral sex on each other before her husband phoned to tell her he would be home soon, according to the records.

They exchanged explicit photographs including images of Zamora in lingerie and naked and the boy gave her love notes on brightly colored post-its which contained messages including 'you are sexy', according to police.

Zamora told police when she was arrested that she was nervous she would not survive behind bars.

'I'm little. They're gonna tear me apart.'

She then asked 'Can I have an attorney?' when the interviewer declared: 'I'm going to give you an opportunity to explain what happened.'

Zamora opened up to cops about her fear after they appeared friendly when she was taken into custody.

Before being helped into a police car by an officer who warned her the step was large, she asked cops to help her move her hair in front of her face to avoid the glare of waiting media.

'You'll be fine, OK?' one woman tells her. 'We have to go in the door by them, OK?'

Zamora even appears to be smiling at one point.

All smiles: This is the moment Zamora was arrested in March 2018

Zamora's husband remained supportive of his wife despite the accusations.

'Not gonna discuss it with you,' her husband tells police at one point. 'Brittany is an adult. She's the best, the best person I've ever known,' he said.

It's unclear if they are still together or not.

The boy's parents previously claimed Zamora's husband Daniel called them and begged them not to report his wife to police after they saw her sexual texts, saying she had made a mistake.

The parents told police that Zamora's husband 'harassed' the father over the phone, begging him not to go to the authorities and insisting that his wife had 'made a big mistake, but that she loved the kids,' according to the documents.

Daniel also allegedly suggested that he and the boy's dad 'meet up' and 'settle this,' but the parent turned down his offer and hung up on him.

Zamora and her husband, who she has known since she was 16, married in 2015. They do not have any children.

Law enforcement reports show Zamora made excuses for the actions of which she's accused in a recorded phone call with the victim's parents.

Zamora's husband defended her to detectives, saying: 'Brittany is an adult. She's the best, the best person I've ever known'

The teacher married Daniel Zamora, who she knew since she was 16, in 2015 (wedding photo)

'I ask myself the same question,' Zamora replied according to police records.

'I just got really close after I think everything went down and we're like, "How could that happen?" … We just got close.'

The first-year teacher was charged with 10 counts of sexual conduct with a minor, two counts of molestation, two counts of furnishing sexually explicit material to a minor and one count public sexual indecency.

She initially pleaded not guilty.

It was previously reported that on February 8, three students at the school complained to administrators about Zamora favoring the 13-year-old.

Some of the students went so far as to say that she was 'dating' or 'in a relationship' with the teen.

Authorities said Zamora (left in court last year, and right) will be sentenced on July 12

Court papers filed on behalf of the victim's family in August 2018 allege that Liberty Elementary School District could have put an end to the alleged molestation

'Everyone talks about them having an inappropriate relationship outside of class and at recess,' one of the students said, according to notes taken by Principal Tom Dickey in an interview.

'I've heard other kids in my class say that they think they are dating,' another note reads.

The school district interim superintendent, Richard Rundhaug, said that they investigated the allegations at the time, but found no evidence of a romantic relationship.

Zamora (staff photo) surrendered her state teaching certificate last December

'We did investigate. We determined there were some elements of favoritism, and we gave the teacher some very specific direction on not allowing that favoritism to continue, and then we monitored to make sure those directions were followed,' Rundhaug said.

'Whenever we became aware of information, our response was pretty quick,' he added.

A second student later came forward to police saying he had witnessed Zamora having sex with the 13-year-old and admitted to receiving naked photos from the woman as well.

Court papers filed on behalf of the victim's family in August 2018 allege that the school district could have put an end to the alleged molestation, given that most of the sexual encounters between Zamora and her student took place after the principal first heard about their alleged relationship from other students.

'It was preventable,' plaintiffs' attorney Michael Medina said. 'We want to hold the school district accountable so this never happens again in the future.'

Zamora will be sentenced on July 12.