Many parents are reluctant to discuss the topic of sex with their teenagers, but it is essential.
Even if you have not broached the subject in the past, it is not too late to start. You may have strong negative feelings about teenagers having sex, but be careful not to turn the discussion into a sermon or it is likely not to be effective. Instead, try to talk about sex more casually and a little more often. One approach you might want to try is to use the third person format. If you give advice, try to keep it practical.