Your school dances had the girls lay down on the ground and the boys hump them, and pretended that was dancing?
Wow, I’ve never even seen THAT! You seem normal enough, but what kind of weirdos were at your (or your kids’?) high school? Granted, in my not-too-distant high school days, I saw lots and lots of simulated sex of various types (and quite a bit of groping and slobbering everywhere as well) but they at least were standing up! Nobody ever got on the floor unless they were break-dancing.