Hello Practo user 1. In every female both breasts are not same in size. But if different is much then its natural. Now her age is also growing so it will be grow in future. So there is nothing to worry. 2. About nipple, same this is not a time of need it. Inner sise nipple is not a issue. It will be outside when she will needed. When she will be active in her marriage life and while pregnancy this will comes out. If not at that time it should have to keep exercise of nipple at pregnancy time. At that time you can tell her to consult. Although of she has more doubt she can contact and consult doctor or get online consulting. Dr. Nikul Patel Atharva Ayurveda Clinic Ayurveda consultant Ahmedabad