>>29390473
Male on f animal can be dangerous.
The reason you would typically receive is consent, but pigs can not consent to being slaughtered and dogs can not consent to being bought. The actual reason is that it is a hold over from early christianity. Churches made mating, or at least the matchmaking part, communal to break up traditional clan/tribal family structures and get people out of the hills. It was a effectively a colonial institution from the Mediterranean expanding into the wilds of northern Europe. Alternative forms of sex, see also homosexuality and cousin marriage, were challenges to the institution. Keep in mind christianity was an urban religion and that animals were associated with squalor and butcher's viscera, not forests and meadows.
Most homosexuals are not bisexual, and most heterosexuals are not bisexual, and thus quickly organised as a sub-culture and identity and agitated for liberty, as soon as the power of the church began to fade.
Women enjoy it in addition to normal sex with men and thus do not identify with it as strongly and feel the need to go public. There is also no clear verge. Gay rights was society caving to the demands of a defined sub-culture, there is no telling how much society would shift if we were honest about what all women want.