Not gonna speak on gay porn because idk how that interfaces with gooning, but I know for a fact the majority of “trans” porn out there is made entirely to fetishize trans people (AKA never made by trans people or with actual respect)

My sense from the goon reddit is that it’s straight people who are fetishizing their own act of cumming, and the cumming of their gooner brethren. So seeing cocks cum is the focus, and I guess it’s especially nice when the cock is attached to a woman