Step 1: Breast basics
+each breast is 90% water, can weigh 200/800 gms, sits on the chest wall between the 2nd and 6th rib,
+statistically, left breasts are often slightly larger than right ones, (up to 2 cup sizes!) though i encourage anyone to challenge this by submitting your own research on the topic.
+breasts have no internal support structure and rely almost totally on skin tension for their shape. this is where the bra comes in.