Might it not be possible that teens most likely to have sex are drawn to these lyrics, rather than the lyrics causing the kids to have sex?
Tell you what:
I grant you that teens who are most likely to have sex are more likely to be drawn to these lyrics.
Will you grant that some good children, who have been raised in a moral environment, may get confused about the types of behavior which society seems to condone, based on the music that permeates the teen's environment?
I say both factors are in operation. Do you agree? Or do you think that this sort of music has no bad effects at all?