Exactly, because it isn’t a thing to “get.” It’s not conscious, or learned, or probably very suppress-able. Sexuality researchers observe and measure the emotion in some people but not in others. It’s an unavoidable component of the human experience for many people. Lots of people report a reaction to certain sexual situations very much like your own reaction to vomit.

A popular theory, btw, is that the sexual disgust response is a byproduct of our faulty incest-avoidance instinct combined with the sexual repulsion leg of the reproductive drive.

But people are so complex that no single experience can describe everybody.