Let me give you some evidence.
Let's take a look at the military. You should realize that the military is the perfect sociological study group. Why? Because within one platoon, let's say, you have 30 men from every walk of life, political affiliation, race, religion, etc... all tossed together in one little group. Literally... in one platoon of 30 men you're going to have straight, gay, republican, democrate, white, black, asian, hispanic, college educated, non-college educated, reasonably well to do, poor, yankee, southern... you name it. What's interesting is that with EVERY military installation I was stationed.. Germany, Kirtland AFB, Missouri, Oklahoma, Georgia... and every where else... it was all the same. The wives by FAR out-cheated the men. Regardless of the chest beating "yeah, I'd like to fuck that!" bullshit they spewed... Now, I'm not saying that the guys didn't cheat... but I can tell you for sure that the wives did a hell of a lot more it.
Secondly, when I get picked up I can promise you that at least 70% of the time, she's married. Whether it was back in college, at the gym, downtown, at the beach... doesn't matter. At least 70% of the time, when I get approached, it's by a married chick. Now yes, I do have female friends that tell me they get picked up on by married dudes... sure... but for them (we've talked about it) it's probably only about 40% of the time that the guy will be married, if that.
Understand, again, that I am not saying men don't cheat... but I can tell you women do it a hell of lot more. The difference is that men get caught more often and often boast about it. Women don't.
I have to also disagree that sex for women is generally different. Women are just as horny as men. The difference is we live in a society that still tends to condemn women who have a lot of partners (despite the attack on marriage posed by complete shit shows like Desprite Whores... I mean Desprite Housewives). Women like sex just as much and often for the same reason... the orgasm. So, sorry, but I don't buy that it's "an emotional issue for them." Granted, they my put more emotion into it than a guy does - but all in the all in the end it's just as much about busting a nut for them as it for men.
Oh and I also disgree with the fact men are more visual. Women are a creature that will spend HOURS in the bathroom getting ready to go out. They won't leave the house unless everything matches. They'll spend an entire day at the mall shopping for the right pair of shoes. They'll "shop" for the best looking guy they can find to impress their friends and family... come on... who's really more visual here? Yeah, when it comes to sex men are visual... so are women.
sooo sure me.