Rule 34 Dev - 2017 4_toes anatomically_correct animal_genitalia animal_penis anus ass balls black_nose blue_eyes canine canine_penis claws collie digitigrade erection feet feral fur hair hi_res hindpaw knot libra looking_at_viewer male male_only mammal pawpads paws penis psy101 simple_background smile solo solo_male toe_claws toes white_fur|2536774464