Rule 34 Dev - 2015 amadeusvirus anal anal_sex animal_genitalia anthro big_penis canine canine_penis claws cum cum_inside dasa demon devil_dog duo erection excessive_cum feral fox fur hair hellhound hi_res horn inflation interspecies knot large_insertion male mammal muscles nude penetration penis piercing rough sex size_difference stomach_bulge teeth williamca yaoi zoophilia|1973006032