The understanding of the conservative female sexual needs

Is not accurate.But most of them want you to believe that to cheat some reproduction value.

The most obvious exception is they being extremely enterprising when they found a alpha male(even lead to that guy feel annoying).I think the establish of monogamy is alpha males  feel they need to control the harassing from female and stabilizing the society.They would get some mistresses eventually,but the monogamy can cut down the number of female who harassing them.I notice most of imperial concubines in history feel glory for share a same man with others ,which make me sick.

I would say female are more "picky"in sexual needs,but not conservative.

Most of sluts are insecure attachment female ,as jellyfish release their fertilized egg when they encounter danger.I often use jellyfish to explain the phenomenon of unmarried pregnant(not cause by rape) and teenage pregnancy.Since human have instinct to dislike like losers in reproduction ,so ,the hating of sluts is intercultural.Those people who have sex with sluts are losers usually as well.

Accurately, sexual needs is person by person.