AIDS is such a mess. Somewhere back there I actually agree with the comment you made about promiscuity. I have read that some in the gay community are now into the combined viagra and amphetamine club seen. Keeping every thing up so to speak.
I don't make the natural distinction many make. Nature is filled with variants and for that matter deviants. I actually do not think that anything is unnatural as that would suggest it was not of this world.
I like to make this distinction. If what you do does not harm me than I support your right to do it. If what I do does not harm you than I support my right to do it. Morally these things get very complicated. Obviously the species won't get too far if the main interest of the group is not reproduction. Legally I think the question really comes down to is there a victim. If so than I think we, as a society need to interfere. If not than I think we as a society need to realize that this is none of our business.