How would you guy's imagine a normal heterosexual couple were the husband and wife are both sociopaths. Would the sex be endless without any need for a certain "spark" like in other marriages. How would they behave around there kid's and how would the kids growing up look like. How would both couples fight with each other and how often would it be, all very good questions to look at and if it is possible as well.
Also I suppose the wife could ether be borderline or sociopathic if you choose to look at it in a different prospective as well if you think it wouldn't make to much of a difference.