Wicked_Nightmare
Virgin
- Joined
- Jan 13, 2015
- Posts
- 22
This can probably end up being a multi-purpose thread, so feel free to ask others about a situation that's not too rare in imagination/fiction.
Personally I was wondering about the incest scenario that has both mother with son and father with daughter. If the siblings were already fooling around with each other it'd be a partner swap. Probably not exclusively a family of four, but usually the younger generation including both genders.
Edit: Rather than bump up a dead thread, I decided to slip in my conclusion here. I'm calling it "nuclear family exchange," as it hinges on the most stereotypical of nuclear families becoming incestuous.
You start with a married couple, they have sex and have one son, one daughter. The son and daughter at some point start having sex with each other, becoming an incestuous couple. When the parents discover this, for whatever porn plot reason they decide to start swapping partners between these two couples.
Personally I was wondering about the incest scenario that has both mother with son and father with daughter. If the siblings were already fooling around with each other it'd be a partner swap. Probably not exclusively a family of four, but usually the younger generation including both genders.
Edit: Rather than bump up a dead thread, I decided to slip in my conclusion here. I'm calling it "nuclear family exchange," as it hinges on the most stereotypical of nuclear families becoming incestuous.
You start with a married couple, they have sex and have one son, one daughter. The son and daughter at some point start having sex with each other, becoming an incestuous couple. When the parents discover this, for whatever porn plot reason they decide to start swapping partners between these two couples.
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