Flashing a row of pearly white teeth perfectly accentuated by her glossy blonde hair, it would be easy to mistake the snap of Sarah Fowlkes for a glamor shot. 

But the disgraced former biology teacher was actually posing for a booking photo after being arrested for engaging in an inappropriate relationship with a 17-year-old boy at Lockhart High School in Texas. 

The 2017 image was beamed around the world, with the then-27-year-old Fowlkes initially proclaiming her innocence, only to later admit an improper relationship with the student.

While the age of consent in Texas is 17, the state's Romeo & Juliet law means children that age cannot consent to sex with a person older than 20.

Nine years on, Fowlkes still has plenty to smile about. She spent just 10 days behind bars over the sex crime in 2019, completed her four years of probation in 2023 and now has a new career so successful it has even won her an award.

Astonishingly, Fowlkes also has also remained married to Hayden Fowlkes, her husband of 13 years.

Their relationship has endured despite the Daily Mail uncovering excruciating new details of the sex scandal that saw the former educator jailed - including a previously unreported consensual affair with a 53-year-old colleague.

Fowlkes, 35, currently works for a business consultancy firm in San Antonio after relaunching her career, pivoting to marketing.

She worked at two other marketing firms prior to her current appointment, one of them run by her mother. 

The former teacher has shown such flair for her new profession that she was handed a small business award by the Society of American Military Engineers in 2023. 

Beaming on stage as she collected the honor, Fowlkes appeared to have put the past well behind her - her LinkedIn profile makes no mention of her time as a teacher.

But the Daily Mail has seen newly uncovered police reports that paint her checkered past in shockingly vivid detail.

Investigators uncovered Snapchat conversations between Fowlkes and the boy in which she named herself 'Lil Mama' to his 'Big Daddy,' the reports show. 

Fowlkes was so bold and brazen at the time that she even showed a teacher friend an explicit photo of the boy, according to police interview transcripts.

She claimed the person in the image was a former college fling who was around the same age as her, cops were told.

Fowlkes would brag about cheating on her husband with other men, police reports said, with little apparent regard for her long-suffering spouse's feelings.

The police report detailed how the scandal exploded in March 2017 after faculty members grew suspicious about Fowlkes's closeness to the boy.

A police report showed that, when asked during a preliminary police interview if she knew why they had arrived at the school, Fowlkes answered: 'Unfortunately.'

She then claimed she was the victim of false accusations, leveled at her 'because she was young and pretty,' the report continued.   

A fellow teacher at the school, Brittany Underwood, also spoke with officers and told police she was best friends with Fowlkes.

According to Underwood, Fowlkes was 'very open about being unfaithful to her husband,' the report said. 

Underwood told police that while out drinking with Fowlkes the weekend before her relationship with the boy came to light, she had showed Snapchat messages from an account named 'Big Daddy,' which she said was 'known' to be someone other than her husband.

Underwood said that Fowlkes had also shown her and other friends they were drinking with images of a penis sent by 'Big Daddy,' according to the report. 

She said that it was not until later that week that she realized the events of the night out and the allegations being made against Fowlkes were connected.

'Sarah told us that [Big Daddy] was an old friend,' Underwood said in her statement. 'I later grabbed her phone from her and saw a message from Big Daddy.

'It said he loved her.'

Another member of the party who was out drinking with Fowlkes and Underwood later told officers that Fowlkes confessed to having phone sex with Big Daddy.  

That same person added that Fowlkes claimed the account was an old college fling of hers and showed the group a picture of a grown man on her Facebook.

One of the people at the drinks later told cops the Facebook man's skin tone was markedly different to the one seen in the photo of the genitalia.

Fowlkes also exchanged extremely graphic Snapchat messages with the boy.

He had messaged her that night saying, 'Whiskey makes you frisky,' a member of the party recalled.

After Fowlkes sent him an image of herself with a cat filter, police reports show that he responded: 'There's two ******* I would tear up, you and yours.'

The boy then went into extreme detail of sex acts he said he wanted to perform on Fowlkes, concluding that he would carry them out 'until you could not handle it anymore.' 

In response, Fowlkes told the boy she would 'show him the ropes.' She told her friends she was going to spend Spring Break having 'lots of sex' with this person.

Fowlkes was described as being 'giddy' that night by another member of the group as she paraded the messages around. 

In a written statement to police, the then-teenager said he and Fowlkes started talking over Snapchat after they exchanged their contact details on school grounds. 

The boy said he was going through a hard time after attending a funeral for his great uncle and that he reached out to Fowlkes in person 'to help me get past my troubles.' 

According to the report, the texts became 'fantastical,' and he would ask her 'what if we were together[?]'

He told officers that she would respond 'would you move away with me?', adding that his worries 'seemed to disappear the more I talked to her.'

After 'a couple of days,' the boy told police that they both agreed they could see each other as potential life partners, despite the age difference and Fowlkes's position of authority over the youngster. 

'I no longer recognized her as a teacher when I looked at her,' he added. 'I just saw her as a person that I really cared about her.

'That's honestly how we felt about each other, I was delighted to look at her. I believe it was that Wednesday or Thursday when we shared a kiss for the first time.'

The two would meet in the mornings before school started and 'be with each other' behind her desk, he told police.

According to police documents seen by the Daily Mail, the boy detailed how they would 'kiss and hold each other very passionately' while groping each other 'nearly every day before and after school.'

This behavior continued between the two until Fowlkes was questioned over her relationship with the boy.

That prompted her to cut communication with him, the report said. 

The boy also showed a nude image of Fowlkes to investigators that he had saved to his phone, saying he received two explicit shots of her during their conversations. 

'She deserves no punishment, she just wanted to help a teenager in distress,' he told officials.

One staffer inside the school also gave a statement to police in which they said they had seen Fowlkes leave her classroom in surveillance footage and enter a bathroom, with the boy leaving her classroom shortly after.

Other teachers at the school also told police that they had seen the boy and Fowlkes leaving a baseball game together in her car, and one support teacher said she had seen a student kissing Fowlkes's hand.

Another faculty member described how discussions were had over whether what Fowlkes was wearing to school was appropriate as a teacher. 

Further details on that outfit were not shared.

Walter Lee Nickells, another teacher at the school, also confessed to having an affair with Fowlkes, the report states.

The then 53-year-old told police that they first met in the break room of the school when they started to get to know each other.

He said the two started a physical relationship over the 2016 Christmas break when they met at his lake house in Cost, Texas, and had sex.

On another occasion, the two went to a bar in San Marcos and 'had a couple of drinks' before having sex in the back of his truck, per the report.

Their tryst was short lived, according to Nickells. They ended their affair after learning of a friend who was splitting from her own husband after he was caught cheating.

Nickells said in his statement to police that Fowlkes said she 'felt guilty' about what was going on and they agreed to stop seeing each other. 

In her own statement Fowlkes said she had never texted a student on her cell phone while adding she was 'very close to many' of her students. 

She even confessed to police that some students in her classes knew the password of her phone.

But despite originally pleading her innocence, Fowlkes submitted a guilty plea in 2018.

Her lawyer had tried to explain away the smiling mugshot by saying Fowlkes had only beamed because she was blameless. 

As part of her supervision order, Fowlkes was ordered to carry out 120 hours of community service, abandon her teaching license for good and attend counseling.

She was also ordered to stay away from drugs and alcohol, as well as being subjected to random testing by court officials.