soul-kissingn.

1923 Sandusky (Ohio) Reg. 11 Oct. 4 A little of what they call ‘necking’ and some sporadic kissing. Sporadic kissing is simply a lesser degree of the..unseemly crime of soul kissing.

1948 A. C. Kinsey et al. Sexual Behavior Human Male xvi. 531 Soul kissing, smooching, necking, mild petting, and heavy petting are basically one thing, even though there may be differences in the limits to which the techniques are carried.

1973 E. Jong Fear of Flying 82 I had the distinct sensation of kissing my own mouth—like when I was nine and used to wet a piece of my pillow with saliva and then kiss it to try to imagine what ‘soul-kissing’ was like.

2007 W. Safire in N.Y. Times Mag. 4 Mar. 16/2 I reported that the term being used to describe..soul-kissing..is now sucking face. Some readers found that phrase to be unsuitably descriptive.