Talking about sex with your teenage daughter or son is difficult already however it is also difficult and uneasy for them to hear it from their parents. Most teens don't want to face the fact that their parents actually do have sex and that is how they were brought about! Now of course they know how they were brought into this world but they don't want to hear all the horrid stories about the so called "birds and the bees" story as you don't feel comfortable talking to them about it. If you talk to them from the time they are little about anything and everything and you have given them the comfort of knowing there is no closed door on any subject they will feel a sense of comfort and know your care and concern. It's that open door policy that I use with my children. My daughter knew what a tampon was at the age of 4 however she didn't know all of the details but she knew it was for ladies to use for one week out of the month called our "lady time" and I see nothing wrong with making her aware of what it was called without sugar coating it or lying to her or saying nothing.