promiscuity causes less aids spread:

I read this interesting article on disease control: Simulation shows promiscuity prevents aids spread
I'll assume you will read it, and not quote it here. What I think is interesting is that, with only a small amount of promiscuity, you are virtually guaranteed to eventually contract a sexually communicable disease. So, if I am loyal to my partner for 20 years, and then pass a beautiful person on the street, one that just can't be resisted (and fit into the stereotype that is the weak-willed male), and end up having sex, chances are that I'm not her "first lover", and also, chances are that, she's a disease-ridden germ factory, spewing death in all directions. That puts things in perspective.

While I was reading the article, they mentioned that, with nightly promiscuous activity, 200 days , in a population of 400, would cause the entire promiscuous world to be infected. Scary freakin' simulator. They mentioned the simulator's ignorance of the fact that most sexual behavior is more strait-laced than random partners every night. Most lovers are semi-loyal to each other, even in a promiscuous relationship. But the problem is the interconnections with each other. I think the 200 days represent a speeded-up simulation, where it would be better to say that 200 couplings where a good percentage of people are not monogamous will virtually guarantee contraction of Aids. I think most of us are safe from this fate regardless of our status. Our greatest fear would be to live long enough to couple with 200 non-monogamous people (repeats would count toward this total, I believe). Since I don't have a very good imagination, I think this would take 1,000 years to manage for all but the most libido-driven person.

I have always found this topic fascinating, because AIDS is REALLY hard to get. You have to find someone with aids who is also willing to 'rub nubbins' with you, and even that isn't always enough. You both have to also be unwilling to take basic contraceptive practices (make sure the rubber DOES meet the road). It's interesting, and scary, that for promiscuous members of society, the only thing that will save them from aids is that old age will get them first. And any monogamous partner of a promiscuous person is also screwed (no pun intended), and didn't even get to have the 'fun' of barhopping and whatnot.