Babala!

A femme fatale is a stock character, usually a villainous woman who uses the malign power of sexuality in order to ensnare the hapless hero. The phrase is French for "deadly woman" or "fatal woman". She is typically portrayed as sexually insatiable. Although typically villainous, femme fatales have also been known to be antiheroines in some stories and sometimes even repentant heroines. Today, the archetype is generally seen as a character who constantly crosses the line between good and evil, but despite any allegiance, acts rather unscrupulously. Part of a femme fatale's power is to emotionally enslave her lover without his realising. What makes her a tragic character is that the reason behind her methods and actions cannot be explained, not even by the femme fatale. Her personality is a mystery to others---part of her attraction---and an abyss to herself.
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Wahehe!