I went through the same thing with one of my models Celeste Star. She turned 18 and was still attending school. I had the same thoughts as you are having now. The thing is Aaron if you don't sign her she will most definatley go to someone else. Make the money brotha and don't let your personal feelings for her personal life your dilema. She is of age and that should be your only concern in my opinion.
Oh yeah when your done with her please send her to me, I am always looking for good talent
