If you have watched much online porn, you may have noticed a specific subset of pseudo-incest clips that feature two fathers trading each other's daughters to have sex with them, usually in the same room. One "channel" making these is called "Daughter Swap", but there are several like it.

From my viewpoint as an incest erotica author, two things about these series have bugged me. First, none of these clips ever progresses to the daughters swapping back and having sex with their own dads. Nobody even admits to being turned on by the sight of their own family having sex in front of them. As a result, the clips wind up being anti-incest in a strange way.

Second, there's no equivalent series for moms trading sons. Not a single film with the equivalent same-room sex, although you can find a few where sons take turns being with the other's mother.

So, I decided to write a story about two moms having sex with the other's son.

Of course, I could have simply written a story about two neighbors who trade sons for the day. But if I stopped there, it wouldn't be incest, would it? So, instead I developed a family with two moms, each with one biological son, who they want to swap so that they can get pregnant by the other's son. And then I swapped them back, with a twist to make the whole thing incestuous. And enough side plot that I could write several more stories as prequels, etc, with titles like "Brother Swap", "Sister Swap", etc.

I just haven't written them yet. Want me to? Let me know.