FURVERT!

anal anal_penetration animal_genitalia animal_penis anus balls black_body black_claws black_fur black_nose black_tail canid canine canine_genitalia canine_penis canis claws dipstick_tail duo erection feral feral_on_feral feral_penetrated feral_penetrating feral_penetrating_feral fur genitals hi_res intraspecies knot knotted_penis male male/male male_penetrated male_penetrating mammal markings muskydusky pawpads penetration penile penile_penetration penis pink_eyes purple_anus purple_claws purple_nose purple_pawpads purple_penis purple_tail sex tail tail_markings white_balls white_body white_fur white_tail_tip wolf yellow_eyes