Study: Women Are Either Bisexual or Gay

Women are never heterosexual- they are either bisexual or gay. That's according to a study released this week by the University of Essex in the U.K.

The survey, published in the Journal of Personality and Social Psychology, measured both eye tracking devices and direct measures of physiological sexual response, and involved 345 women.

"Although some lesbians were more masculine in their sexual arousal, and others were more masculine in their behaviours, there was no indication that these were the same women," researcher Dr Gerulf Riege said. "This shows us that how women appear in public does not mean that we know anything about their sexual role preferences. Men are simple, but women's sexual responses remain a mystery."