Rule 34 Dev - 4_toes anal anal_masturbation anal_penetration anthro anus ass_up avian_feet backsack balls beak blue_balls blue_body blue_eyes blue_feathers bodily_fluids body_writing bottomless butt butt_focus chair classroom clothed clothing desk dripping eyewear feather_tuft feathers feet furniture genitals glasses half-closed_eyes improvised_sex_toy inside looking_at_viewer looking_back lying male marker masturbation musk narrowed_eyes non-mammal_balls object_in_ass on_front penetration perineum pink_anus presenting presenting_hindquarters raised_tail school sex_toy sex_toy_in_ass sex_toy_insertion shirt smile solo steam sweat sweatdrop table tail tail_feathers talons toes topwear toying_self tuft writing_on_butt yellow_beak latchk3y deltarune sharpie undertale_(series) berdly avian bird 2022 hi_res signature|15349425105