Back in my scurrilous and licentious youth, my friends and I often had what we called "oral sex." There was no touching, but a lot of sexual innuendo flew back and forth and there were those who thought that the bunch of us were some sort of Grande Orgy. Example:

Male: "I changed my major to Sociology."
Female: "Why'd you do that?"
"Well, when we study alcoholism I can drink, and when we study drug addiction I can toke up."
"And when you study prostitution?"
"I'll come by and see you." (Loud mixed-sex laughter and sounds of someone being beaten with a textbook.)

Now? I wouldn't think of it. The days of male-female sexual repartee with equal give and take are gone forever.