Teacher on Trial for Sex With Football Players

A high school teacher accused of getting too close to members of the school's football team. And prosecutors say they've got cell phone video footage and explicit text messages to prove it all. Brian... See More

A high school teacher accused of getting too close to members of the school's football team. And prosecutors say they've got cell phone video footage and explicit text messages to prove it all. Brian owens has it all. Reporter: Brittany is now on trial, accused of sleeping with five students, four of them football players. One says his relationship began with this innocent text message from the 27-year-old married mother of three. Hey, it's coach colleps, do you know what time the baseball game starts? But soon, that student, said he was exchanging up to 100 texts a day with her. She said that she craved that I had something she wanted. It progressed into explicit sexual messages. And then, an agreement to meet for sex. Reporter: The prosecution's evidence against colleps, who taught at this school in ft. Worth, texas, includes cell phone videos that allegedly shows group sex between the teacher and four of her students. That graphic video was played for the jury this week. Police say it happened inside her home, when her children and husband were away. He's an army specialist stationed out of state. At least before the trial, he stood by his wife. If you knew brittni, you would know he is a loving person. Reporter: Here's the legal twist. All of the students were 18, legal adults. So, the teacher is not facing statutory rape charges. But five counts of a relatively new charge. Having an improper relationship with a student. One of the young men she aledgedly slept with, has publicly said she didn't commit a crime. And her attorney agrees. She is terrified. She has no idea whether she's going to be in prison next week or at home. Reporter: If convicte prosecutors believe she should spend the next 20 years in prison. For "good morning america," ryan owens, abc news, dallas.