Brave New World
I just happen to be reading this right now, and the sexual mores in that society are pretty free, if not non-existent. Though I'm not sure they could be classified as free-spirited. That seems to go against the theme of the book.
Huxley did though predict, perhaps logically, that flight would become the main mode of transport. They use plane-like vehicles seemingly in the same manner as trains, though they have propellers. In fact, he has a flight from London to New Mexico taking about 6.5 hours. Pretty impressive for a prop plane if you ask me.
I would hope that we're moving in the opposite direction of his society in the area of social stratification, but who knows what cloning will do.
As for 1984, I'm not sure how common TVs were in '48 (when it was written), but he seems to have predicted fairly well the wide-spread usage of them (telescreens), even if not for recreational purposes.
