Apparently the sexual revolution was not actually a reaction against prudish Christian morality from the Victorian Age, but rather a rebellion against prudish pagan morals of the Lower Palaeolithic Age.  It started with an argument over whether fig leaves were sufficient covering.  The prudes insisted that they start killing animals and using their pelts for clothing, and the poor unhugged libertines reacted by organizing sit ins in front of animal holes and whittling naked people out of fire wood.

(For those whose sense of humor is on life-support, this is a joke.  Keep the comments jovial and friendly or stay in your cave.)