First, a bit of background demographic information so you can put my high school experience into perspective. While I went to a public school, it was rather homogenous. 96% of the students belonged to a specific Christian religion (and, given that I went to high school in Utah County, Utah, you can probably guess which religion that was). We had released time during school to walk just off of school property and attend seminary (essentially a bible study class), and the state had worked it out so that you could have one free period per semester and still graduate. (Which meant that those students who didn't take seminary would hit their senior year and essentially be able to take every-other-day off if they wanted to and still graduate.) (This is a lot of parentheticals, even for me.)
So, it was a fairly conservative and religious group of kids. And, like any group, there was a wide range of practice regarding those religious principles, but it wasn't too unusual in my school for a student to be sixteen or seventeen and have never kissed anyone or had a serious relationship. (Which certainly isn't to say there weren't kids who had serious boyfriends or girlfriends, just that not dating much wouldn't single you out as weird.)
Man, when is this story going to start??
So, seventeen-year-old Kiersten (who had, in fact, kissed someone by this time) had AP Psychology. It was a great class, one of her favorites, with a dynamic and interesting teacher. Plus she always looked forward to it because there was a Very Cute Boy, one that regularly flirted with her but that, like all other Very Cute Boys, never actually asked her out in spite of her well-honed flirting skills.
(Alas, Kiersten-that-was. You were too scary, no matter how adept your flirting. Don't worry though, it all works out in the end and you get the best boy of all who is never scared of you except when you hide in the dark nooks of your house and jump out screaming at him when he gets home from work. By the way, that isn't very nice of you, even if it is really funny.)
One day in AP Psychology the teacher was talking about sensory perception or some other such thing that Kiersten memorized and aced on the test because she had so much time to study because no one ever asked her out.
"The lips and the tongue have more nerve endings than almost anywhere else on your body," the teacher said, "making them especially sensitive to touch."
"Oh, that's why!" Kiersten said, not realizing until far too late that she had a) said it out loud and b) said it loudly out loud. Everyone in the entire class turned toward her, and her face burned bright red over her pale Utahan skin as she slouched down into her desk and tried to disappear. "Umm, you know, I just always wondered...about...why kissing feels as good as it does."
And still the Very Cute Boy never asked her out.
I can assure you that when the sexual response cycle was discussed, Kiersten was as silent as the grave.