BOTTOM LINE! If you are engaging in any unnatural act then you are against the natural order of the universe and there by nature is against you. A male and female was made to mate and have offspring to further the chance of survival of their species! If you are not a productive member of your specie's existence YOU ARE PERVERED, SICK. DISTORTED, UNNATURAL!
What part of this extends to hetero, "unnatural" acts , that involve intimacy, but arent involved in procreation?