Rule 34 Dev - 1boy all_fours animal_genitalia animal_penis anthro anus ass ass_up backsack balls black_nose blue_eyes brown_fur brown_hair canine canine_penis casparr ear_piercing erection fox fur hair knot kyden looking_back male male_only mammal multicolored_fur nude pawpads penis perineum piercing pink_penis presenting presenting_hindquarters raised_tail simple_background solo tan_fur teal_background tongue tongue_out two_tone_fur|2374603720