FURVERT!

against_natural_surface against_surface against_tree anal anal_penetration anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro asinus back_hair backsack balls beard belly_hair big_butt body_hair butt butt_size_difference donkey duo equid equine facial_hair from_behind_position genitals gulonine hair hair_bun hairy larger_male larger_penetrated larger_sub lucas_raymond male male/male male_penetrated male_penetrating male_penetrating_male mammal mature_anthro mature_male mustache mustelid musteline open_mouth overweight penetration penile penile_penetration penis plant rine ring robert_hayes sex shoulder_hair size_difference small_top_big_bottom smaller_male snoopjay2 standing standing_sex submissive tree wolverine