FURVERT!

16:10 2011 4_toes anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro anus balls balto balto_(series)biped black_border black_nose border butt canid canine canine_genitalia canine_penis canis claws clothing digitigrade domestic_dog erection feet feral genitals hair hi_res hindpaw hybrid kf_furry_design knot looking_at_viewer lying male mammal nude on_back open_mouth pawpads paws penis presenting presenting_hindquarters quadruped red_penis smile soles solo spread_legs spreading tail toes tongue universal_studios widescreen wolf wolfdog