Stories of Tie Up Games

Someone could make a story where: A teacher calls the mother of a student who has not been paying due attention in her classes, so they can talk about a way they could solve this, so the teacher comes up with the idea of tying up and dominating the mother and using it as an example for her son, where in the situation the teacher dominates the mother by force and everything this teacher does to this mother, her son would be watching from a hidden closet inside the room.
I believe that all of this would make a great story, I trust in the skills of all the users of this site, I hope this request is met, thank you! I hope you take great care of this beautiful milf that is this mother.

Just a friendly reminder (to the OP and to any potential authors willing to pick this request up) that such a story would be okay, so long as it remained strictly PG-13 and did not venture into adult territory or even hint at eroticism.