Personally, I don't feel this topic is appropriate for an English class, or any class in school. I'm shocked that it was a teachers idea. Personally, I'd go to try to get through and talk to the principal. If he doesn't take it any further to make this teacher understand that it's not appropriate, I would go to your parents and the parents of other students, especially the girls who also didn't agree with the assignment and maybe they can go even higher by taking the situation to a board meeting. I just can't believe you were put in such a situation by a teacher and really think something needs to be done to make this teacher realize that that is not the place for such topics!