The image board isnt the place for a long discussion but to give 1 fairly short answer- for a tag on a board I'd guess it would either get a transgender tag or be labled purely on looks- i.e yuri in your wep example. I dont think you can label it het- i dont even think some kinda transgender tag is even needed in all those cases. From the perspective of the mind in the opposite gender body- it might seem a kinda strange het still- or it might not- if they were becoming/already that gender mentally too- like in 'girl meets girl'. That is for sure yuri.
From the perspective of the other person- I cant see why they could accept the relationship just based on what body the mind inside came from- unless they were actually already actually Bi / gay and didnt know.- because everything about the experience perceptualy would be yuri/gay still. Its like telling a vegan they can eat a cow because it used to be grass.
last edited at Mar 17, 2021 7:11AM