rule 34 2018 age difference ambiguous gender animal genitalia anthro avian bag beak bedroom eyes bird black eyes bottle claws clothed clothing dialogue digital media artwork duo english text feathered wings feathers feldspar flat chested genital slit green scales grey feathers half closed eyes heart hi res holding bottle holding object kobold kobold adventure male moe kobold adventure navel nude old open mouth owl purple eyes reptile scales scalie seductive seki kobold adventure simple background sitting size difference slit smile standing teeth text toe claws topless video games white feathers wings 2641969