Thinking about how cute it'd be to do a bit of forced role reversal on a couple of girls into hypnosis. One more switchy and one more subby. Spend so much time brainwashing the switchy girl, getting her so comfortable in the feeling of obedience, absolute devotion, a need to please, and introduce her to the idea of letting you control her sub through her. Make sure she feels absolutely blissful sending your every command down to her pet. And teach her little ways to make her control over that girl so run incredibly deep. To the point where obeying any command she's given is nothing more than instinct. Tell her what a good girl she's being by brainwashing her darling little pet on your command.
And eventually, once she's used to letting you exert control on her property, tell her you're taking command of her pet more directly. She won't question it, why would she? It's not much different than what's been happening already. It's okay to relinquish that control to her owner. So she tells her pet that she's going to be obeying you from now on. That so many of the orders she's been given have been gifted to her in that manner, passed from your lips, to hers, and left as lovely little bits of conditioning in that poor, pathetic thing's head. That this is no different. She's a thrall, and nothing more. The pet will obey the woman that enthralled her owner, above all else.
And then of course, is when the best part begins. It'd be so easy to just tell your lovely little thrall that she's going to belong to her own pet from now on. Too easy, in fact. It'd be much more fun to watch her struggle. Even if she's helplessly devoted, controlled, even if she needs to obey her owner, she still views that pet as below her. So it'd be absolutely lovely to tell that pet to pin her down. To show her that thrall's every weak point, every method to get her mind all empty and fuzzy, to make her limbs grow so heavy that she can barely fight back. But that thrall doesn't know what's happening, she wasn't told she was going to be treated like this. So she tries to fight back. You haven't told her not to. But still, she fails. She's held down, and entranced, and made so wonderfully empty by the pet she would have controlled effortlessly just minutes ago. Teased, and groped, and treated like an object, regardless of how much she tries to fight back. She willingly handed that pet's leash to another, and now there's no going back.
And there are so many fun things you could do from there. I like the idea of turning the thrall into a stress relief toy for the pet. Having her put a trigger so deeply ingrained into that thrall's mind that makes her go helpless, limp, unable to fight back, and giving the pet a command that when she needs relief, she's to use that trigger on her owner, and take what she needs from there. I personally really enjoy the idea of making it kind of humiliating for her. Still maintaining the thought of this girl as her pet, still maintaining most of the dynamic of pet and owner, but being reliant on her permission for certain things, being reliant on the feeling of her control. And making the pet so eager to humiliate her owner. Keeping her in a cage so she can't even touch without permission, making it so she'll need the feeling of trance provided by her pet, slowly increasing in intensity until what little remains of her pride can no longer hold out, and she finds herself begging on her knees to be allowed to serve, to do anything, just to be dropped into trance once more.
And the lovely thing is that the pet won't even really think of it as dominance. She's simply obeying her new owner. Like she was told to. Like her new owner has reinforced in her so many times. Exerting that control over the thrall that was her original owner is nothing more than submission in her eyes. And when she does so, she'll eagerly await praise, being told that she's been such a good girl. Having those hidden little pieces of sadism in her mind nurtured, brought to the forefront, over and over and over, just so she can please her new owner. As long as it pleases Her, she'll be more than happy to do what she's told. So treating her former owner like a fucktoy, like a cute possession, brainwashing her deeper and deeper to further her devotion for their mutual owner, she'll never even think to question why she's doing any of it. It pleases Her, And that's all that matters