FURVERT!

2009 aaron_(artist)abs animal_genitalia animal_penis anthro backsack balls barefoot biceps big_balls big_muscles biped black_body black_fur blue_eyes border butt canid canine canine_genitalia canine_penis claws digital_media_(artwork)dire_wolf erection fangs feet flexing fur genitals grey_body grey_fur grin hair hand_behind_head heterochromia knot looking_at_viewer male mammal model_sheet multiple_poses muscular muscular_anthro muscular_male nipples nude pecs penis penis_tip pose prehistoric_species presenting red_hair sheath side_view smile solo standing tail teeth toe_claws tundru_(character)turnaround vein white_border