What a unique taste you got there my friend. Try this : http://mangago.zone/tag/Furry/ . Though it's not all yaoi since I just looked for mangas with furry tag. You can also try on MRM. There's a ton of beastiality going on there. Hope it helps. Enjoy!
Beastiality? wtf
look up beaststars doujins. there's probably something out there.
since furries are anthropomorphic animals, and beastiality is the act of having sex with an animal, somepeople just tag stuff with the furry tag for extra views. they can argue that it technically fits and whatnot.
Anybody know any furry yaois? As in animal x animal....i need help ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄