Mardoc Redcloak said:
I would broaden this somewhat. Behavior can be in a sense "forced upon an unwilling recipient" without it being "outright violent", and in accordance with this principle at least in some cases where "consent" can be claimed (prostitution being one prominent case) there remain serious moral problems.
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Wait, is there consent given, or not. While I can agree that coersion into prostitution is certainly a possibility, I feel that in a realm of magic, it is much less likely to occur. With plenty of clerics and paladins sticking their noses into every pimp's business, any person not there willingly would get rescued in short order. Of course, in a predominately evil society, the issue of coersion would be irrelavant to those with any sort of power within said society.
If a person is consenting, freely consenting, then why would prostitution be a moral problem? Or rather, why would it be any more of a moral problem than any other form of sex outside wedlock?
In general, I see wedlock and fidelity in general as issues of law/chaos rather than good/evil. Chastity until marriage is again more of a L/C issue. Coersion, duress or outright force, are issues of good/evil.
Once you start by looking at sexual matters in this manner, the rest falls neatly into place, and you don't have to sit and think out every little variation on human (or humanoid) behavior. Wild orgies? Chaotic. Sado-masochism? IF fully consensual (informed consent) then I would consider it morally neutral. Polygamy? Ethically neutral. Married and cheating? Chaotic. For this, I would consider something to be cheating if any erson involved does not know and consent tot he activities of another, so a man with two wives who also sees a mistress is cheating. Of course, if a man with a wife who says "I'm sick tonight, why don't you go get a prostitute?" is NOT cheating, under this framework.
I see it as a Good/Evil issue. "Lawful" vs. "Chaotic", in the 9-part alignment system anyway, is more about methodology. But I consider sexual behavior as a moral object. And so I would put chastity, marital fidelity and fecundity on the side of Good, and promiscuous and sterile behavior on the side of Evil (though I think that people with Neutral or even Good alignments sometimes, or even habitually, commit objectively Evil acts... it's just that there are mitigating factors). I know that opinion might irritate some folks, but since you've taken the lead here I feel safe in responding with my own estimation. My estimation, while linked to a real world body of theology, is also something I consider to be rooted in "natural law" and so should apply to fantasy worlds just as well as to the real world.
However, as with all alignment issues, I think the particulars of it kind of have to vary with the individual DM. Alignments are so open to interpretation that you get wide variance and there's no way around it: I have seen some DMs who think that slaying helpless captives who happen to be Evil is a Good act; even one who thought that slaying baby Hobgoblins was Lawful Good. Myself, I find those acts entirely Evil. However, a player has to sort of "go with the flow" when it comes to alignment adjudications... you can still have your character abstain from behavior you don't like but that the DM thinks is Good and still play a Good character (I should think).
I tend to avoid sexual issues when I run games, though. If PCs did insist on frequenting brothels they may eventually find themselves with a new alignment, however.