- "We are ugly smelly virgins! We don't care!"

As what Carlos had pointed out, sex education is very important. In fact, its a little bit crucial for the students to know. Now some minds of the close-minded teachers will think,

If we teach them sex, sure they go rape one lah!

Not necessary, thing is you have to tell them the consequences too. That'll make them think twice about it. Besides, when they've done something wrong, they'll probably learn from their mistakes. You gotta tell them what its all about, not just the intercourse itself!

Lastly, sex isn't disgusting in any way, that is, if you completely know so little about it :P