Even today women have to deal with slut-shaming. They know that there are plenty of men who’ll judge a woman negatively and will not respect her if she’s too open sexually, too early on. Especially if they find out that she’s ever had casual sex or if she has had a high number of sexual partners.
In order to avoid being judged or disrespected, they hide their sexual side from those men. Instead they’ll present themselves as “not that kind of girl".
If you say negative things about women sexually, about anything sexual really, kink-shaming etc. that tells a woman to be careful about what she reveals to you about her own sexual experiences and desires. It tells her to act like a prude around you, and to play hard to get with you even if she likes you.
It's easier to get laid when a woman feels safe in showing that side of herself to you. It's better to come across as non-judgemental, open-minded, sexually adventurous.
They’re also less likely to have sex with guys who kiss and tell. Firstly because this is a sign of disrespect, and secondly because it might harm her reputation. Never brag about getting laid and never name names, that can harm your own reputation.

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