[QUOTE=Sunrazor]
My lit crit professor claims incest would disrupt the “trafficking of women” that families have always done in order to increase their safety and wealth. In other words, if you’re boinking your sister, Dad can’t trade her out to the baron next door in exchange for loyalty the next time the prince needs to be overthrown. I find it a fascinating idea.
[/QUOTE]
Because **that ** happens all the time. Damned Barons and their schtupping of your sister.
[QUOTE=Wee Bairn]
Stacy and Tommy, no problem, how about Timmy and Tommy, and they’re identical twins 
[/QUOTE]
That would probably be pretty hot. (depending on what Timmy and Tommy look like and of course if they let me watch or join in…)
Don’t these sort of posts start out with ‘Dear Penthouse’?
Was this user name/post topic correlation intentional? Am I wrong for laughing at it?
[QUOTE=WhyNot]
ETA: Oh, right, the OP. While I share the concerns re: awkwardness at family functions, at the end of the day I still believe that consenting adults should feel free to arrange their own sex lives without my input.
[/QUOTE]
I agree. The Uncle/niece relationship in my husband’s family was extremely awkward for 2/3 of the family on both sides. Many of his children stopped speaking to him, and her children were cool, at best, toward them. Some of the sisters really held a grudge against him (but for some reason, not their sister). Others were perfectly fine with it. They chose to attend fewer and fewer gatherings because it was obviously uncomfortable for him when some family members were around.
That said, they carried on for decades. 'tain’t nobody’s business…they were happy with the arrangement and continued on 'til death.
[QUOTE=si_blakely]
<snippity>In the UK recently, there has been a case raised of (fraternal) twins seperated at birth and adopted out into different families. They grew up unaware of each other, met in later life, and married. The marriage was annulled (it was never legal to start with, so should never have been) when they discovered that they were siblings, but at that point…
</snippity>
[/QUOTE]
Wasn’t this debunked?
[QUOTE=Derleth]
And only one is stuck in a burning car.
[/QUOTE]
Oh, you’ve seen it. Damn Youtube leaks of my unfinished works.
[QUOTE=Astroboy14]
How would identical twins boinking each other be any different than masturbation?
In fact, if they were female, I’d be happy to watch!
[/QUOTE]
I’m sure I saw that in a movie once.
[QUOTE=WhyNot]
While this is true, one should be careful not to read more into it then is there. It is true that they very rarely (as in, never, IIRC) marry, but it says nothing about whether or not they have reduced, increased, or the same tendency for **sex **or sex play as individuals raised separately. Don’t tell my grandma, but I’ve had sex with far more people than I’ve married! 
<snip>
[/QUOTE]
The Westermarck Effect postulates that individuals are not sexually attracted to peers to whom they were in close contact with during early childhood. While the kibbutz marriage data support this, the study (Shepher 1971) also found that the pattern of adolescent sexual activity between members of the same peer group was congruent with the marriage data (Gray 1985:215)
Gray, J. Patrick
1985 Primate Sociobiology. HRAF Press, New Haven Connecticut.
Shepher, Joseph
1971 Mate Seclection among Second Generation Kibbutz Adolescents and Adults: Incest Avoidance and Negative Imprinting. Archives of Sexual Behavior 1:293-307.
[QUOTE=Cluricaun]
Identical *cojoined * twins.
[/QUOTE]
Identical *cojoined *DOUBLE JOINTED twins.
[QUOTE=Ol’Gaffer]
The Westermarck Effect postulates that individuals are not sexually attracted to peers to whom they were in close contact with during early childhood.
[/QUOTE]
Makes sense. I am utterly unattracted to my sister even though I have my brother-in-law’s word that she is a Babe[sup]TM[/sup].
Isn’t this kind of the other end of the idea that the more foreign you are, the hotter* you are? People who are dweebs at home become Mysterious Exotic Strangers on the other side of the world.
[sub]*Up to a point, that is. That point is probably where the Uncanny Valley starts.[/sub]
[QUOTE=Ol’Gaffer]
the study (Shepher 1971) also found that the pattern of adolescent sexual activity between members of the same peer group was congruent with the marriage data (Gray 1985:215)
[/QUOTE]
Ah, thanks! Now that is more to the point. I like the kibbutz study both for what it provides and as a “not so fast!” object lesson to non-scientists (or hobbyists) about drawing conclusions beyond the scope of the data. But yes, it sure looks like Gray’s work shows we don’t like to boink those we’re raised with, as well as not marrying them. Thanks for bringing it to my attention.
ETA: And, as a matter of fact, this makes me rest far more easy about my son’s lifelong friendship with the two girls next door who I babysat for and their mom babysat him when the kids were all little. The three of them have always claimed a sibling type relationship, but I’ve wondered, now that they’re at the age for dangerous “exploration”…I guess I’ll take them at their word.
[QUOTE=Cluricaun]
Because **that ** happens all the time. Damned Barons and their schtupping of your sister.
[/QUOTE]
Don’t scoff! I pledged my fealty to my father-in-law and have been a Democrat ever since! I’m a little disappointed that I haven’t wetted my broadsword with the blood of tyrants yet, but my marriage has lasted pretty well. I asked my wife how she felt about being trafficked. She gave me such a look!