Re: Pair of male & female
if you are going to talk about biology, perhaps you need to learn some biology yourself as there is plenty of scientific studies that show homosexuality is due to genetic and biological factors, and it’s definitely NOT a choice. you did not choose to be heterosexual, no one chooses their sexual orientation, and that is something proven by many psychologist, psychiatrist and scientists. this behavior has been present for thousands of years, since the very early humans, even before we were actually humans, (before the time of homo-sapiens).
homosexuality is a normal variant of sexual orientation, according to most biologists and scientists. so if you want to talk biology, there you go.
and even if lets suppose, it is indeed a an abnormality, what is a gay person supposed to do? pretend to be straight and live a heterosexual life?