[Sl'askia]

*knows she spelled SOMETHING wrong in the subject line.* oh well...

I've been going over in my head some of the plots that I may use for future stories and I thought I see what everyone's opinions were about this one, well three, situations. All are similar in one aspect...love of a mate.

A: A brother and sister, related by blood, fall in love with each other and want to marry/have kids together.

B: A brother and sister, one adopted and therefore not related by blood, fall in love with each other and want to marry/have kids together.

C: A single parential figure raises an adopted (and again not related by blood) child of the opposite sex to maturity and they fall in love and want to marry/have kids together.

Now...of these three situations...which is the most acceptable to you morally?
My take on it:
With 'A' I don't see it as acceptable...as not only would it be a form of incest (IMO) but inbreeding, since they are directly related.
'B' and 'C' I don't have a problem with bloodline wise...but then there is the 'raised as if kin' bit. And that is the part I have trouble with. It does your head in, especially if the parties involved see this as 'morally' wrong themselves. Should they deny their feelings and live in misery for the rest of their lives? Or go with it...and face possible discrimination from sociaty itself?
What do you think?

(BTW...in case you are curious...it is 'C' that this fic idea I have is based on)