Well, back in those times after "The Summer of Love", there wasn't much difference.
The term "hook up" didn't even exist until the 1990's. All sex was "free love." All of the kids "had to get with it" back then.
If you weren't born in the 1950's you still have no clue what went on. Granted, those born in the 1940's started the craze but we younger ones went along for the ride, en masse.
Every generation thinks they invented sex...