FurryBooru - against surface against wall anus arms tied arthropod avian bdsm beak belly biped bird bondage bound butt dialogue digital media (artwork) english text fan character feathers female feral flippers forceps genitals green body grossarts hands behind back ibgross implied insertion infestation insect larva lying maggot medical instrument muzzle (object) muzzled nude offscreen character parasite penguin pussy rope scientific instrument simple background solo solo focus spread legs spreading submissive surgical instrument tail feathers text torture tweezers white belly yellow beak yellow feet