If you don't have sexual attraction further opposite sex, you have mental issue. People try to create so many label and normalise something that shouldn't be. If after puberty you don't have sexual attraction for the opposite sex, there is something that isn't working correctly, it would be nice to research this further instead of saying, I'm asexual and it's normal.
The primary role of the human specie is to reproduce, so many things in our body is made for this purpose.
What does it do that sway doesn't?
I remember someone talking about animation but I never really look into it.