janet, you provide no background info on either yourself or your "friend". To get serious responses it would help if you'd fill out your own profile and then tell the forum why you desire to see your friend go black. I guess my initial Q's are #1 what experience do you, yourself have, #2 what discussions or comments with her have you had to lead you to desire this for her. This is a very personal topic and decision in one's life; its not for everybody. Certainly it shouldn't be something you spring on your friend without her knowledge.
So, could you please complete your profile and fill in some info?
PS ... welcome to b2w. Mac