Some of the researchers interviewed for his analysis, Jankowiak says, have explicitly asked the people they studied about sex. One ethnographer told Jankowiak that "people told him the position they were in when they had sex and that they would nibble each other's eyebrows." But when asked about kissing, they said the equivalent of, "Gross!"
I find this interesting because although I have little experience with romantic kissing, I didn't like it that much. It's also not something I fantasize about.
Edit: Sorry everyone, I added an option to the poll and I didn't realize that would reset everything. I blame Trump for this.