Rule 34 Dev - abdominal_bulge abs anthro anthro_prey athletic bed chyme esophageal_sphincter extreme_size_difference female female_human female_pred flat_chested furniture group guts hair human_pred humanoid_pred inside_stomach internal intestines larger_pred listening_to_belly male male_anthro male_prey medical_instrument micro micro_prey midriff navel not_furry_focus on_bed oral_vore organs scientific_instrument short_hair size_difference stethoscope stomach vore that_kei_guy c-b-a iolite_(that_kei_guy) kei_(that_kei_guy) canid canine fish human humanoid mammal marine shark digital_media_(artwork) monochrome|9753001195