From 13 to 18 she is like Africa; virgin and unexplored.

From 18 to 35 she is like Asia; hot and exotic.

From 35 to 45 She is like America; fully explored and free with her resources.

From 45 to 56 She is like Europe; exhausted, but wtill with points of interest.

From 56 on she is like Australia; everybody knows it's down there, but nobody gives a damn.