They are sexy. They are just as much of a woman.
If you are "fat" and feel the need to put down a "skinny" woman by saying she needs a cheeseburger, you are no better than those who have made fun of "fat' women. You can say they deserve it but really who deserves being made fun of based on size? If you think it's okay because you are bigger, then you are a hypocrite and need to grow up!
Don't say that being smaller doesn't have any price to pay. Don't say those who have trouble gaining weight don't have issues. If you are not in their shoes then shut up.
Btw, I am a larger woman.