Thing is, you're calling out women for being promiscuous. There, I reckon, is a weeny percentage of women being promiscuous with other women. Which means they're being promiscuous with men, no? Does that not mean that men are equally as promiscuous or is that all fair game not to be judged?
Not necessarily, men are like machines, if they're offered sex, they will take it. It's the women that do the SEDUCING, the offering of the potential for sex. Women love to seduce. It makes them feel alive, it bolsters their self esteem.
A man's self esteem revolves around: can I do it? the challenge is like lifting a heavy rock. A young guy cannot resist the temptation of trying to lift a heavy rock, to knock out a bigger guy or to kill a dangerous animal. The bigger the rock, the bigger the thrill.
A woman's self esteem on the other hand revolves around: Am I lovely? and the darker, more powerful version of it is: Can I seduce him? Can I make him leave his wife? Can I break up his family? Basically it's "I'm so lovely that I cause people to suffer", or like Helen of Troy: "I'm so lovely that I cause a war". It's the ultimate female alter ego.
The bigger challenge the bigger the thrill. A big, powerful man is an exciting target to seduce, same with a man who is hard to seduce, a man who shows no interest, that's why playing hard to get actually excites the woman and makes her chase you. But when they feel down, any target will do. Nothing will bolster an older woman's self esteem than giving her a make over and having some young men looking at her butt. It makes them come alive: "I still got it"
This goes for all women, that's how they're wired. An exciting sexual encounter with someone who is very different from her husband gives her the secret, forbidden thrill that normal living doesn't offer. Look at romance novels that women love to read: exciting romantic, sexual intrigues that often times involve cheating.
Until you know this, you don't know women.