

As far as I know, pup/petplay is an outgrowth of queer male leather with leather pups being the prototype. Ponyplay has similar roots, probably a little more tradionally het. A fair amount of it, especially in porn, is just female submissive cishet roleplay. There is also overlap with furries.
It is relatively common in the straight-ish kink and leather communties in the US. There are leather pups all over gay leather. I can’t speak to the lesbian communties.
If you’re in the US, get involved with your local bdsm/kink community. Saw a girl come out as a hu-cow for the first time at a recent event.
That’s pretty much what I figured. Wish trans folks had something like the old school hanky code.
As far as my preferences go, I was in a triad for a while with an NB. If I were stuck on a desert island and had to pick between a vanilla woman or a sub boy, I’m picking the boy. However, like I said, I have a strong preference for female genitalia. The whole tomboy/NB thing is the sweetspot for me in this spectrum.
I also have smell preferences. MtF, many NB, and cis women smell much more attractive to me. I imagine it’s related to test levels. I don’t find heavily transitioned FtM very attractive. There’s an androgynous smell that’s kind of like fallen leaves that I really like.
Not trying to fetishize here, but thought the perspective might be interesting. I’m very masculine and fall somewhere between a wolf or bear.