The best approach I've seen yet regarding sex education for kids was simply saying, "if you're not ready to be a parent, then use a condom."
We live in such a sick society. We treat sexuality and our genitals as if they are separate form who we are, removing many of us from reality, responsibility, and promoting ignorance of pregnancy, and disease. Another issue that is often not talked about is not fully realizing pleasure because of the lack of information and because of guilt.
Or "do butt-stuff."
I'm not clear on what you mean there.
Anal sex.