OKLAHOMA CITY - Children may be getting an X-rated education from somewhere other than the classroom according to a new study that finds a rising number of kids are learning about sex from watching pornography.

British researchers find that porn is our most prominent sex educator. And it's an international epidemic, with the number one place to score porn being at school.

"You don't want your child's sex education or other education to come from those mediums" said Sarah McFadden with Sunbeam Family Services.

The average age children first watch pornography is 11 years old.

Kiesha Eberson, mother of three doesn't have cable or the net, so News 9 asked her 11 year old when the first time she heard of sex. She says she was 10 when she first heard about it, but it was her mother who gave her the birds and the bees talk.

"They are getting exposed to it already before the parents get a chance to talk to them about it, so I just talk to them about everything," Eberson said.

Researchers said kids surveyed thought the risqué adult movies depict features of average sexual relationships. The study also found 88% of pornography shows physical aggression toward a female participant.

Expert advice: Talk to your kids or have a trusted person do so before they get their sex education from an unwelcome place.