FURVERT!

anal anal_penetration avian bear biped bird dakota-bear doggystyle duo feral feral_on_feral from_behind_position interspecies larger_penetrated larger_sub male male/male male_on_bottom male_on_top male_penetrated male_penetrating male_penetrating_male mammal nude on_bottom on_top on_top_of overweight penetration penguin perching_position polar_bear quadruped sex size_difference submissive toony ursine