The origins of Male Heterosexuality

It appears that the Christian society, in the middle ages, started to glorify man's love for women, and towards the beginning of the beginning of the modern era, men were expected to court women to marry -- instead of winning them in contests, etc. or through socially entered contracts as in the rest of the world.

This indirectly put a pressure on Western men to display an interest in women, and this "interest in women" indirectly became a source of power for Western men. But never so strongly, that it would lend itself into a separate concept in itself. As long as men's spaces were strong, that was not about to happen.

The concept of sexual interest in a particular 'sex' was invented from the top (by the rulers) and then forcibly made popular. And, it was not originally started for men's interest in women. The concept was originally started for man' sexual interest in men, in order to isolate and persecute it, as well as to misinform public view by making it seem 'feminine' by classifying third sex interest in receptive anal sex as 'man's sexual interest in men'.

The concept of a man's sexual interest in women, or heterosexuality came much later, and men's spaces just didn't accept the term so willingly. Not until, the new category of 'homosexuals' created by the rulers became very, very strong and created the term 'straight'.

However, even the term straight is not really accepted by men so willingly, even to this date, and is only used either by gays themselves to refer to the non-gays, or by men when they need to distinguish themselves from the gays (i.e. feminine gendered males who like men).