Rule 34 Dev - animal_genitalia animal_penis black_and_white bound canid canine canine_genitalia canine_penis female feral fox fur gender_transformation genitals group hair hair_loss hi_res internal knot knotting male male/female mammal merge_tf merging mirokuferral monochrome open_mouth penetration penis pussy realization simple_background speech_bubble tongue tongue_out transformation trio vaginal_penetration vaginal_penetration white_background|12211752704