Step-siblings idea

[callmeismael]

Step-siblings aren't a dynamic that typically appeals to me, but this idea came into my head this morning and I thought I'd share it. I have no intention of doing anything with it, but I'm just putting it out there. Would make a good taboo/romantic story, I think.

Backstory:

A young man and woman have been friends through their parents since childhood. When their respective parents went through divorces around the same time, they comforted one-another, and eventually became lovers. They kept their relationship secret, not telling their parents, but it gradually becomes more serious, even to the point of talking about spending their lives together. Then they learn that his mother and her father have been lovers for some time, and that it was that affair that caused the divorce. And now, a couple years later, her father and his mother intend to get married. Right away. So these two young lovers, who have had an intimate, loving, intense relationship, are about to become step-siblings.

Main story:
Frame the story around their parents' wedding day: their frustration that their totally healthy relationship is suddenly going to become taboo, one of them wants to call off their relationship. Nobody would ever accept them being a couple now, let alone getting married someday. As members of the wedding party, they need to walk down the aisle together, dance together at the dance. Will they have one last fuck? And will it be their last? Will they tell their parents? Is step-sibling sex really a taboo, and what if that relationship predated becoming step-siblings? Yes, they could still technically get married, but they'd always be thought of as 'those step-siblings that married each other.'

Just an interesting, emotionally-charged dynamic to me. Discuss.

 

[Sean Renaud]

Interesting dynamic. The only issue I can see here is that I don't see a good reason why people wouldn't accept them. They are per lit rules at minimum 18 years old, though realistically. . .anyway they probably wouldn't have the same last name. Family reunions might get a bit funny if you even attend but I think nobody else would even know unless you lived in a really small town.

 

[Ldy_Sea]

Of course depending on how ling the affair was going on they could unknowingly be half siblings, or at least they are worried about it, and what pthers might think since the affair started before they were born...

 

[Hypoxia]

Of course depending on how ling the affair was going on they could unknowingly be half siblings, or at least they are worried about it, and what pthers might think since the affair started before they were born...

That's IMHO the best way to handle the bunny. Step-siblings -- eh, that's an issue IFF one is trying to force the other into sex ala power asymmetry. If they're totally consensual and not blood-related, who cares? (Well, maybe strawman / cartoon prudes would care...) There's a bit more frisson with a possibility of being half-siblings. As with many such bunnies, this could play out as romantic drama, comedy, tragedy, whatever.

Twists and gerbils:

* The whatever-sibs have DNA tests to map their linkage, if any. Some jealous so-and-so substitutes fake test results. Hilarity or tragedy ensues.
* The parental couple about to wed are not only long-term lovers, but are themselves step- or half-siblings, unknown to anyone. Discovery of their relationship can lead to various plot twists including blackmail.
* The discouraged young whatever-sibs publically separate and take new partners... who are themselves related. The w-sibs maintain a secret affair which their new partners discover and exploit. Orgies ensue.
* The w-sibs say FUCK IT and propose a double wedding with their parents. HEA ending -- cue the syrupy violins.

 

[Sean Renaud]

Or, more realistically they are related, not actually siblings but fairly close cousins. I've always suspected that in sufficiently rural areas that shit just happens a lot more than anybody really talks about. Math kinda demands that when you've got a town of 3k and like half the familes can trace back to the Revolution that there are a lot of 2nd and 3rd cousins going on and while that's usually acceptable the reality is that once I say "She's your cousin and here's the proof!" No amount of "but but that was my great grandfather's third marriage" is going to undo the initial shock.

 

[Mello_SixtyNine]

How about a young couple that were next door neighbors (18 years old) hook up the night before the guy has to move with his family out of State.

The guy starts dating a girl he meets in new State. Accidentally gets her pregnant and has a daughter. They marry and around 18 years later his wife dies tragically. Eventually he reconnects with his first love on Facebook. Finds out that they are both living in the same city. Also finds out that he knocked her up that fateful night and had a son. They start dating, love blossoms again and they marry.

Everything is going fine for awhile but his kids have this genetic attraction that is compelling them towards each other. They know that it's really, really wrong but they have this relentless lust towards each other. Eventually it bubbles over to the point that the step-siblings consummate their forbidden desires.

 

[Sean Renaud]

Did you know your AV makes all your ideas sound better?

 

[Ldy_Sea]

Or, more realistically they are related, not actually siblings but fairly close cousins. I've always suspected that in sufficiently rural areas that shit just happens a lot more than anybody really talks about. Math kinda demands that when you've got a town of 3k and like half the familes can trace back to the Revolution that there are a lot of 2nd and 3rd cousins going on and while that's usually acceptable the reality is that once I say "She's your cousin and here's the proof!" No amount of "but but that was my great grandfather's third marriage" is going to undo the initial shock.

Until around World War II, it was not uncommon for people to marry their distant cousins. Especially in the more well to do families marring relatives was a way to keep money in the family. Lots of royal fmilies also married relatives to keep the family in power.

Incest was more coomon than many people realize. It wasn't just in small isolated villages or the backwoods either. It was in major urban centers.

 

[Mello_SixtyNine]

Did you know your AV makes all your ideas sound better?

Yes...yes I did.

 

[Hypoxia]

Incest was more coomon than many people realize. It wasn't just in small isolated villages or the backwoods either. It was in major urban centers.

I recently read a piece (sorry, I forget where) about cousin marriage and the rise of the British empire, especially among Nonconformist entrepreneurs, artists, and intellectuals. The Darwin and Wedgwood and other prominent families and the Bloomsbury circle (including Princess Di's ancestors) were cousin-linked. Cousin marriage is still common or even mandatory in many parts of the world.

In isolation (like with not too many generations of it) cousin marriage ain't no big thang. Look at consanguinity charts. You're closer to your parents and children, siblings and half-sibs, aunts and uncles, nieces and nephews, grandparents and grandchildren, than to first cousins (primos). A string of generations of cousin marriage is bad, as the Spanish Hapsburgs proved, but they were an extreme and ignorant case.

Unfortunately, the one cousin I've lusted after (long ago) is a total asshole blacklisted from all family functions. So I won't be doing any cousin-fucking, sorry.

 

[Ldy_Sea]

Interesting fact I learned while helping to create a family tree.

Joe Father

Tom brothers Pete (joes sons)

Bill (toms son) 1st cousins James (Petes Son)

Lucy (Bills Daughter) 2nd cousins Sally James (daughter)

So Bill and James are first cousins.

Lucy and Sally are second cousins

Bill and Sally and James and Lucy are first cousins once removed. The once removed means that you are first cousins but from different generations. They are not second cousins as is commonly believed.

 

[lovecraft68]

For me the taboo dynamic of Steps only works if they have been in each others lives from a young age.

For example, a man and woman each have a kid in the 16/17 range. If they wed and those two hook up, its meaningless, they didn't meet each other until they were already at a sexual age and only see each other as a person their age. No taboo

Now have them meet at say 7/6 and have them live as siblings then at 19/18(for lit of course) become interested sexually there is a taboo because they had a family bond.

Same with step mom....if she meets her step son when he is 17 where's the taboo nature? If she meets him at 8 and raises him, now you have taboo.

So for me this particular idea has no taboo at all, they were lovers before even becoming steps.