That it is accepted that men can sleep with more women without there being something wrong is not a "double standard," it's a different standard. You know, like in men and women are different. And it's not society that dictates it, but instinct.
I suppose we'll just have to pass on this information informally again and again, since the public schools see it convenient to not teach kids about evolutionary psychology.
Those men who have had the instinct to sleep with a lot of women, have passed on their genes more than those who never had that instinct, and that's why men desire sex more today (and are quicker aroused by the visual, as a sidenote. Like porn.).
Women, on the other hand, can't have several children at once like men can, so they had to be more careful about who they chose as the father - it needed to be someone with the best possible genes. Also, it needed to be a father who would stay and provide for the woman and her offspring.
Therefore, women have the instinct to be much more picky. Also, to desire men with status more. Which is why girls scream and faint at the sight of male singers, from Beatles to NSync and whatever, whereas guys don't act that way when it comes to female singers. (Perhaps "oppression" and "society" dictate they should act this way? What a funny dictate.)
Not only do women need to be picky, they also need to catch the man. A primary way to do this is through the withholding of sex. Women can't give away the goods too early, or the man might feel satisfied and move on, as per his instinct. She needs him to marry her first, settle down. That is her instinct. (This is where romance comes from: the woman is withholding, acting hard-to-get, and the man has to woo her through poetry and flowers singing below the balcony and whatever, to show that he is ready to work hard for her. Romance comes from the woman raising the cost of sex.)
So a woman who breaks this pattern, who gives away the candy to men far and wide, will destroy the main bargaining tool the other women have. The cost for sex is lowered. That's why they will hate her and consider her a slut.
Those feminists who tell us that "society" portrays loose women as sluts, conveniently forget that it is primarily other women who think of the loose women as sluts. And it has always been thus. Who hate prostitutes more, women or men? So unfortunately for the feminists, this doesn't fit into their male conspiracy plans either. As usual they ignore real science, like evolutionary psychology. Not that that has ever stopped them, as they will still always have full access to the mainstream media. Thank God for the internet, breaking the monopoly.