In what ways do women use sex as a manipulation tool?

I am writing a paper on how women throughout time have used sex to manipulate men. So far I have come up with using sex to climb the ladder of success in the workplace, and getting their way in personal relationships. What other specific ways could I use?In what ways do women use sex as a manipulation tool?why do some guys manipulate and use sex as a weapon?Well some need money to survive and others are just sluts to begin with.And to move up a higher position,not being paid enough.Like a stripper make more money than an average woman all though they only just strip their clothes off for money.It really isn't hard work.Not work at all really just sluts with a capital S.Who are talentless and have nothing for a living.Nothing to fall back on.