Appealing to both magicians and feminists past and present, Lilith, or Lilitu ("wind-spirit" in Assyrian-Babylonian mythology) was a ravenous sexual entrepreneur. In legend, Lilith was the first wife of Adam. She was either created as Adam's Siamese twin (joined together at the back), or was made from filth. Either way, Lilith demanded equality with Adam.
Presumably, Lilith and Adam led a happy enough life until they got horny. When it came time for Lilith and Adam to share carnal knowledge, Adam was upset that Lilith wouldn't assume the missionary position. She wanted, according to some accounts, to lay side-by-side. In other accounts, she wanted to be on top. In either case, Adam was upset and refused Lilith's wants. When he tried to force himself upon her, she uttered the magical name of God, rose into the air, and flew away to find more amenable sexual partners.
Her sex life soon changed dramatically. She had riotous erotic adventures with fallen angels, and together they spawned a huge family of demons called the lilim, creatures virtually identical to the succubi of Christian demonology.
In Muslim lore, however, Lilith indulged in her sexual wants with Satan, and together they spawned the djinn or genies.