A 24-year-old Iowa high school teacher arrested for allegedly having sexual relations with her 17-year-old student is opening up about their trysts.

Mary Beth Haglin, a substitute English teacher at Washington High School in Cedar Rapids, showed Inside Edition the raunchy photos she sent to the student during their 6-month relationship.

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Haglin turned herself in to authorities in July and was charged with sexual exploitation of a minor. Speaking to Inside Edition, she said she still finds it hard to believe she did what she did.

"I never thought it would get this far and I apologize to each and every person I hurt," she said.

But she claimed it was the student who seduced her.

“He would come into my classroom, grab a Post-It, write something and stick it to my desk on his way out,” she said. One read, "I love you so much, my empress."

"He would always call me 'my empress,'" she added.

The student even compared their relationship to the classic movie The Graduate. He once called her "Mrs. Robinson," a nod to Anne Bancroft’s character.

The teen Casanova’s romantic overtures worked, and his teacher fell in love.

"I was completely head over heels," she said.

She said they had sex almost every day in her car at a public park in the area.

“We met several times a week, not every time was just to have sex,” she said. “There were times we would sit and talk. I thought in my mind this was some sort of real relationship.”

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It all came crashing down when they were spotted by another student. Haglin was fired and charged with sexual exploitation by a school employee.

“I realize how stupid I was and what a terrible mistake I made,” she said. "I thought that it was something that could be kept secret and that nobody would ever know."

If convicted, she faces up to 2 years in prison and will need to register as a sex offender.

She said: “I want to go back and smack myself and ask: 'What were you thinking Mary Beth?'"

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