Both genders develop hungers for input and the satisfaction of output, whether we are a computer programmer or Rosie the Riveter. We all know what goes on with our bodies and minds when we get hungry or are struck by the urge to dance when we listen to loud rock 'n roll music. However, how does the drive to practice makin' babies affect women ? Are the breasts related ? Can it start with what you smell or see ? Is the first trigger physical only ?