
Oswalt said the girl had already been warned by school administrators about what he called "inappropriate cell phone behavior."
The Licking Valley High School principal did not return a call for comment.
In Pittsburgh, Pa., police Detective Mike Overholt told ABC News he encounters similar problems at least once a week. "It's ballooned here," he said.
"My sense is they look at it as if there's nothing wrong with it," said Overholt. "It's being a star."
But there can be serious consequences in many states that make child pornography illegal to send or possess.
A teen field hockey player in upstate New York testified earlier this year that she took a photograph of herself in panties and bra and sent it to her coach at his request.
"It made me feel special and important," she told a jury, according to Binghamton Press Sun Bulletin. "He would say I was beautiful, that I had a good body and was really athletic."
The coach was convicted of child pornography and other charges.
Candice Kelsey, author of "Generation MySpace: Helping Your Teen Survive Online Adolescence," said online culture encourages exhibitionism. "It's a means of getting attention, of becoming more popular," she said. "It's an unhealthy extension of a healthy adolescent exploration."