This is potentially good for a series.
Scene 1: Demonstration
Mommy A is visiting her friend, Mommy B. Mommy A explains how difficult it is lately to keep her son in line. Mommy B says she has learned exactly how to keep her son in line, and she can show her.
The two enter Son B’s bedroom, where he’s goofing off. Mommy B scolds him, and his response isn’t very good. Mommy A gestures, “See what I mean?” That’s when Mommy B turns on her Mommy Dom routine. I suppose the domination portrayed can be whatever you want. For me, it would be something like this.
Mommy B pulls her tits out of her blouse, pulls her miniskirt up over her hips, and strips out of her panties. Son B sees all this and knows he’s in trouble. Mommy B yells, telling him to get down on the floor right now. He kneels down subserviently. She gives him a good tongue lashing, and takes particular issue of disobeying in front of Mommy’s friend.
She orders her son to take his pants off, and he hurries to comply, while the two moms sit on the edge of his bed. Mommy B bends him over her knee and spanks him. She invites Mommy A to spank him as well, which is a new experience for her.
Then Mommy B orders her son to lick her pussy. She spreads her legs and he kneels between them and gets to work. While this is going on, the two women have a teaching moment, and Mommy B explains to Mommy A that you have to show your boy who’s in charge, yadda, yadda, yadda.
“Here, why don’t you try. Take your panties off. And show him your tits, so he knows you mean business.” She coaxes Mommy A to bare her tits and pussy the way she has done, and to spread her legs. Mommy B orders her son to lick Mommy A’s pussy.
After a while, Mommy B orders her son onto the bed, so Mommy A “can use your cock.” Mommy B sits on his face while Mommy A sits on his cock. Eventually, they trade places.
After the two women are satisfied (because, you know, in porn, men and boys always last longer than the women), they take turns sucking or jerking his cock until he cums, probably with some face sitting still going on. There may be some CBT at this point.
Scene 2: Training
Mommy B visits Mommy A’s home, where they basically do the whole thing over again with Son A. Son A is new to this, and Mommy A is kind of new, so it stands to reason that there is more confusion, resistance, and whining on the son’s part, but the two mommies wrangle him sufficiently under control.
Scene 3: Foursome
The two moms and the two sons are all together this time. At minimum, this is extra-awkward for the boys because of the presence of the other. Optionally, you could go so far as to include some Forced Bi. If you want to include some Pegging, this would also be a good time for it.
There should be a lot of side-by-side visuals. The boys, standing obediently naked side-by-side. The boys bent over their moms’ knees side-by-side. The two moms sitting side-by-side to get their pussies eaten.