In our society, promiscuity is frowned upon. To many of us, monogamy is good. Monogamous relations are ideal. Every one is for every one else to enjoy. Sex is an act to entertain.
Sex is an act of sharing.
Promiscuity is encouraged. Young children are encouraged to play erotic games. Chastity means passion, chastity means neurasthenia. And passion and neurasthenia mean instability. Yes, prejudice and discrimination exist in our 90s society.