This is based on some unmentioned assumptions and also unnecessary to the article in general. --Robbe
"Heterosexuality is romantic or sexual desire for, or sexual activities with, persons of the opposite sex. It is overwhelmingly the most common [sexual preference]? or orientation.
This is not surprising when we consider that heterosexual behavior (coitus) is responsible for the reproduction of human beings - persons disinclined to sexual behavior with members of the opposite sex have been at a considerable reproductive disadvantage."
Surely there's *someone* more recent than Kinsey to refer to? --MichaelTinkler
"These studies have been discredited, because they relied on prison inmates, hardly a representative sample of the general population."
Ok. Let's see the ref. :-)