Do women have sex simply to reproduce or display their affection? When Cindy M. Meston, a clinical psychologist at the University of Texas at Austin, and evolutionary psychologist David M. Buss joined forces to investigate the underly...

Do women have sex simply to reproduce or display their affection? When Cindy M. Meston, a clinical psychologist at the University of Texas at Austin, and evolutionary psychologist David M. Buss joined forces to investigate the underly...