Throughout history, people were judgmental regarding sex. Traditional vanilla sex practiced by heterosexual people fell into the category of “good sex.” Society considered it natural, healthy, and normal if it was consumed in marriage for the sake of reproduction. Pornography, oral sex, role-play, kinks, and sex toys were out of the question — not to mention BDSM kinks or fetish sex.
All other sexual activities that did not fit into the only acceptable category were bad. Therefore, gay and lesbian sex, sadomasochism, and fetishism were socially and morally viewed as wrong. Even if mutually consenual, all activities that fell out…