For more that 10 years now I have facilitated a human sexuality curriculum called Our Whole Lives through my church. Developed by the United Church of Christ and the Unitarian Universalist Association this program acknowledges that people are sexual beings their entire lives, that there are any number of ways to express our sexuality and it is every person's right to be sexual in safe and appropriate ways. There is an OWL curriculum for K-1, 4,5-6, Jr. Hi., High School and Adult. OWL is available at UU and UCC churches nationwide. If you're interested in having your children well educated sexual beings I highly recommend it. And, it is never too young to start the process. I've had nine year olds ask me what oral sex is and when my daughter was in jr. high school her classmates were engaging in anal intercourse because they thought it was safe.