It is an urban legend that girls who smoke give better head.

While I don't like the smell of smoke, I detest those anti-smoking
evangelists even more. Please understand that if a person is
smoking in an open area with no restricted signs, it is perfectly
OK. He or she does not need your "disgusted looks" or condescending
attitudes. If you have a problem with it, then YOU walk away.
Smoking is still legal despite all your do-gooder intentions.