I've thought about this before, but I think it would be unfair to dominate only Shani without giving her "superiority" over Mandisa. Okay, everything is clear with Zaton: Shani loves and trusts him, and is ready to do anything for him, but Mandisa, imo, does not deserve such treatment. Yes, she trained Shani for Zaton's money and did an excellent job of teaching her combat skills, but that's not enough.
In my opinion, if we're going to do something like this, the girls should dominate each other in turn, as we saw in the scene with MC, Shani, and the Queen. As for Zaton, ofc, he can also participate in this, being who he is (the undisputed Alpha), but to make Shani a "submissive slave" to two lions with a lot of life experience behind them is, in my opinion, not very fair. I believe that both Mandisa and Shani should be on equal footing in this scene, and they can easily try out submissive roles.