Some people are really uncomfortable talking to their kids about sex. In some ways they are sometimes ahead of the game because at least they know that their not having productive conversations with their kids about sex. I can’t tell you how many people I know who think they are perfectly comfortable talking about sex (and in some cases they actually are) but don’t have any conversation because “my kids haven’t brought it up.” Guess what? It’s more than likely that at some point you are going to have to bring it up.
A great resource for all you parents is a book called: Everything You NEVER Wanted Your Kids to Know About Sex (But Were Afraid They’d Ask) by Richardson MD and Schuster MD. The book is GREAT and one of my few regrets in life is that I did not write it first! It’s funny, warm, realistic, not preachy and provides a range of options for parents who fall in a range of comfort levels.