In ancient
England, people
can't have sex
unless they had
consent from the
king, unless they
belong to the
royal family.
When people
wanted to have
a baby, they had
to get the
consent of the
king and the king
have them a
placard that they
hung on their
door while they
were having sex.
The placard had
F.U.C.K.
(fornication
under consent of
the king) on it,
hence the word
fuck came from.
Now, aren't you
glad you learned
something new
today? xD