"You have not lived,
my friend, until you have been waked up out of a dead
sleep by an alien who seduces you with the precision of
a computer and the cunning of a Geisha. Nor would you
ever again entertain the idea that such an experience
was a fantasy. If it was, and that was ever proved,
I have to admit that it would break my heart."
Alien Sex -- Whitley Strieber