Rule 34 Dev - against_natural_surface against_surface against_tree anthro anthro_on_anthro balls big_dom_small_sub bodyguard_position butt claws clenched_teeth dominant duo erection fangs forest from_behind_position genitals humanoid_genitalia humanoid_penis imminent_sex larger_male male male/male muscular muscular_male night outside penis plant sex size_difference smaller_male smile standing standing_sex teeth tree vein veiny_penis kupoklein mythology canid canine canis mammal mustelid mythological_canine mythological_creature otter werecanid werecanine werecreature werewolf wolf 2016 hi_res|9230789260