Whore, Slut,Slag to many to mention

As the title says there are many words that us girls get called in our time if that is by a ex lover or even one we are with or just some stranger you have knocked back in public. I for one do not understand these old terms that were used years ago and are they really needed in todays way of life ? Men can fuck any woman they want without getting called names unlike us women i mean if a man as loads of shags with different women he is called a hero by his mates yet if us ladies want to have sex with many other men we are called all the names under the sun, Now to me we are both sexual beings we both have the same needs and want the same thing so i find it hard to understand why a woman is a whore for doing what to us all comes natural, the one that really gets me the most is when a man says he wants a women out side the bedroom but a whore in the bedroom well boys let me tell you this much i am no ones whore apart from my self i am my whore