You have to address STDs. Whether the school sex education program broached the subject thoroughly or not, STDs can be permanent and deadly. So stress the importance of protection and the risks (not just of pregnancy!) that are taken when unprotected sex occurs.
3. The Clitoris/G-spot Layout
Why not give your girl a little anatomy lesson? Remember back when you were trying to figure it all out and how frustrating sex could be when your partner knew even less about your body than you did? Giving your daughter the information about where she can find pleasure will open doors for her to enjoy a healthy sex life. Eventually, we mean, of course.