ROGERS COUNTY, Oklahoma - A Rogers County father says he is disgusted with the legal system.

A teenaged neighbor boy was arrested for sexually abusing his 8-year-old daughter. Now, he's learned the District Attorney is not pressing charges.

The dad is outraged, because he was told the sexual acts were "voluntary," so it's not a criminal issue.

He's also learned the sexual abuse involves not one, but both of his daughters.

"My whole world is upside down. I mean my wife is to the point that she doesn't even want to stay at our home, because of the backlash we might get towards our daughters if they release the young man," he said.

To protect his daughters' identities, we're referring to him as "Dean." Dean said he feels like he's failed at protecting them.

"That's what aggravates me, is I didn't see the tell-tale signs. They said it might have been going on since December or maybe even November of last year," Dean said.

On his daughter's 8th birthday, she went outside to play with her 9-year-old sister.

When their mom looked out the window to check on them, she saw the younger sister performing a sex act on the boy.

Both girls underwent sexual assault exams. Dean says the exams showed the abuse, which included penetration, has happened before.

"There's laws in Oklahoma for that, they're not capable of giving that kind of consent," Dean said. "We tried to reassure them that this was not their fault."

The sheriff's office put together a 19-page report, involving forensic interviews and handed it over to the District Attorney.

"It's up to the District Attorney's office for the determination of charges, at this point. We've done our job to this point and I think we did a good job," said Sheriff Scott Walton.

But the investigator who worked the case tells us the assistant DA told him he declined to file charges.

"The district attorneys, I've lost faith in them," Dean said.

Dean said he feels like the suspect has more rights than his daughters.

"All they're doing is washing their hands of it and letting them go out to do it to anyone else's daughters, and I can't live with that, because I don't want no other family to have to go through what I'm having to," he said.

Rogers County District Attorney Janice Steidley wasn't available, but her office said they cannot comment on juvenile cases.