Something some might consider a perversion, albeit one nature has created, is the hermaphrodite. A person born with both male and female genitals. There are a lot of jaw dropping pictures online of the genitals of these people. This condition is much more common than people realize. 1% of births produce children with genitals not identifiable as male or female. Many times surgery is preformed, usually with a born male being turned into a surgical female.
I think that’s a big mistake, you should leave peoples genitals alone and let them decide for themselves when they are old enough to do so if they want to be living as a male or as a female. Many well meaning Dr.’s and parents have irreversibly changed someone through surgery causing a lifetime of misery and psychological pain to the person that was operated on creating an identity crises.
Of course, there is hermaphrodite porn. This might be of interest to ones into trannies. In all honesty, I can see the appeal of a hermaphrodite more than a tranny, as they are naturally born that way, a tranny is not. A hermaphrodite has the best of both, a pussy and a cock, a tranny is just a weird abomination, a mixed up individual. A hermaphrodite could satisfy men and women, a tranny seems to only be of use to men. I have yet to hear a woman say they had a tranny fantasy. It’s a strange and wondrous world out there, with all kinds of unusual things out there to explore.