rule 34 11 2020 all fours ambiguous gender anatomically correct anatomically correct genitalia anatomically correct penis animal genitalia animal penis anthro anthro on anthro ass big penis big tail blush bovid bovine broken horn brown body brown fur cattle claws dialogue digital media artwork duo english text equid equine equine penis erection from behind position fur genitals hair heart heart marking hi res hooves horn interspecies kneeling larger male looking at another looking back male maleambiguous mammal manitka manitka character medial ring mottled mottled body mottled fur mottled genitalia mottled penis multicolored body multicolored fur nails narrowed eyes nipples nude open mouth penis sex simple background size difference smaller ambiguous smile tail grab tanner manitka text worried 3822268