A trannie on my city's discord page a few years back introduced me to a HIGHLY NSFW comic called
The Invitation (no really there's cock on the first page), which I found incredibly disturbing but seems to explain the trannie mind well.
A guy in Victorian England finds a arcane artifact (dildo) that is supposed to summon a demon and regularly interacts with it, even as it starts taking over his mind and tuning him into a woman. When the conversion is complete he escapes to the demon's world which is a mansion of endless genderfluid debauchery. When his scientist wife eventually finds him she is drawn into the debauchery, and the demon asks her to find a way for the demon to escape it's prison. The wife agrees, but as she is close to a breakthrough the mind control slips and she sees the realities of the horror she is in and runs away, only to be addicted and drawn back in.
...come to think about it, that comic might have weirded me out enough to save me from being drawn in at a vulnerable time.