Mental changes are neat and fun and I do like some of them sometimes. But I like the exact opposite far more.
I love it when a piece of tf media goes out of its way to stress the fact that the transformee is still themself, in every way except their body. Something about the notion of someone ending up in a form/aesthetic that doesn’t match them, and learning to come to terms with it themself, is just adorable and interesting and oddly kinda hot to me.
Even (especially? Especially.) if it’s a form where you’d expect mental changes, like turning into a clown, or a werewolf, or a plushie, or something… I love thinking about how a perfectly unaltered mind would handle those things. How they’d react, how they’d solve the new problems that came with it… even how they’d go about getting their old form back, if they wanted to. Just a good vibe to me.