I'm theorycrafting about TG porn, kill me 2018-03-31 22:16:250 ♡
In a handful of pages since slave girl transformed, including this one, her eyes have been noticeably purple instead of the normal blue. The hex Mistress placed on her manifested itself as an intense shade of red when it was making physical changes to her body. When her eyes change color, the hex is still making subtle mental changes, helping her normalize heterosexuality and feminine behaviors.

That's not much of a theory, in my opinion. The real theory involves what comes afterward. I think the hex will never truly go away unless Mistress calls it off. It will always be working in the background, perpetually keeping her youthful, beautiful, and, most importantly, fertile. She'll be making half-demon babies for as long as they need her to.