I've been in your situation. I had one of those sex ed classes twice while I was in school. Still to this day, I have never had any form of sex talk from my parents. Of course they are Asian so I'm not sure if that has to do with their culture or whatever, but I think it is great that you are concerned about your parents not giving you the sex talk. They may end up like my parents and never talk about it, but if you really want to talk about it, just approach your mom or dad, whomever you feel more comfortable with and try to talk about it.
