If you're a parent and are not familiar with Vicki Courtney, I totally recommend two helpful books that she has written with regards to parenting and talking to your kids about sex: 5 Conversations You Must Have With Your Son and 5 Conversations You Must Have With Your Daughter. In the video below, Vicki and her son Hayden discuss when it is appropriate to talk about sex with your kids, how to go about it, and how to help your kids fight temptation.

http://vimeo.com/73478477

Another helpful resource that helps parents understand what information to talk about with their kids at each age and stage is the God's Design for Sex series by NavPress.