FURVERT!

all_fours anthro anus avian backsack balls beak berdly big_anus big_butt bird blue_body blue_feathers blush bodily_fluids butt cross-popping_vein deltarune dialogue english_text eyewear feathers feet femboy genitals glasses hi_res huge_anus male narrowed_eyes non-mammal_balls nude parasitedeath perineum raised_tail simple_background solo speech_bubble sweat sweatdrop tail tail_feathers talons text toes traditional_media_(artwork)undertale_(series)yellow_beak