Parents of students who attend Isabelle Jackson Elementary said that the woman is a good teacher, but just made a mistake that may become the most embarrassing moment of their life.
The offending DVD starts with a menu screen that displays various school trips and functions, and when you click on one of them, you see kids in a classroom sharing stories. They start clapping, then the video suddenly cuts to sex.
"It goes from my son, straight to her on the couch," said 'Joe,' who saw the video along with his son and did not wish to be identified. "My son's reaction was, 'Dad, is that Ms. Defanti?'"
"We were up till midnight doing the 'birds and the bees,'" he added.
The person in the video turned out to be Isabelle Jackson Elementary fifth grade teacher Crystal Defanti.
"All she could say was that it was a horrible mix up," Joe said.
The teacher called his home the day after his child got the DVD, crying hysterically, profusely apologizing and asking the man and his wife to call every parent they knew to stop their kids from seeing the DVD too.
The Elk Grove Unified School District says they are investigating, but legal experts say it's unlikely that the teacher will lose her job.
"It's felony stupid, but it's not a crime," said defense expert Ken Rosenfeld. "Is it something that she should be disciplined for? Absolutely, but fired for? She didn't intend for this to happen."
Joe doesn't care if the teacher keeps her job, he'd just like some help from the school.
"Maybe offer some sort of counseling for my children, ask me how my children are doing," he said. "I want somebody to ask me the kind of questions my kids are asking me."
School officials say a new DVD will be sent to students once it has been reviewed.
Watch the CBS13.com report (mature content):