Variables in play:
Exposure time ~45 minutes at a time.
Age of exposed: 20's.
One is a mother, one is not.
One is married, one has a boyfriend.
Personality type for S is strongly intellectual, with high energy and slender body. She is Thai, but raised in the United States.
Personality for Y is much more emotional. She has moderate energy and is petite. She is Japanese, raised in Japan.
Exposure frequency: One day per week.
Exposure location: In public, while she is working and being directly observed at all times by her boss.
Under different circumstances, and regarding different variables, the optimal number of sprays might be much different.