HOUSTON -

Concerned parents in Cypress-Fairbanks prompted the school district to reform its sex education program.

After reviewing the sex-ed materials being shown to seventh and eighth graders in the Cy-Fair Independent School District, parents said they decided that some material was too explicit and inappropriate for younger grades.

In response to the hundreds of complaints from parents, the district said it agreed to move the final four lessons -- which contain information on dating, adult relationships, and contraception use -- to the eighth grade.

Officials said public schools do not have to offer sex education, but the Texas Education Code requires that if provided, the sex-ed programs must stress abstinence.

There are 12 lessons total in Cy-Fair ISD's program.