[F4A] Becoming The Mindflayer Queen

Mindflayers! There's just something sexy about how inhuman and monstrous they are, how they're almost but not quite recognisable - and, of course, about how much they can do to warp and twist minds. So, I'm currently in the mood for something where my character starts out as someone kind and pure, before slowly, steadily being turned into an evil, tyrannical mindflayer who rules with an iron fist around the mind of all around her.

There's plenty of options and scenarios for it, of course...

• Does a fantasy queen accept a group of mindflayers into her court, accepting them as bodyguards or advisors after they fled a war of some sort?
• Does a fantasy queen find one sealed away beneath her castle, freeing it in exchange for it serving her?
• Perhaps the mindflayers are created by a shadowy government agency or a secretive R&D department of a company my character runs, and that's where the change happens.
• Perhaps they're an alien race, crash-landed or sent to convert and "enhance".

Of course, the species change doesn't have to be the only one here. Height growth, muscle growth, other sorts of growth, futa, latex, extra limbs, FTM and plenty of others would all be really fun to add. I don't want to include stuff that diminishes my character here - no IQ loss, no identity death, nothing like that, she should just be enhanced. Hard limits are anything involving underage characters, scat, beastiality, incest and such, and I'm also currently not really interested in weight gain and cuckolding/NTR.

It's a bit of a shorter post, but I'd love to hear from you if you're interested in turning someone kind and pure into a cruel, evil mindflayer!