Rule 34 Dev - animal_genitalia animal_penis anthro balls bed coal_(tawny_otter) comic duo equine equine_penis erection fully_sheathed hi_res horse horsecock male male_only mammal muscular muscular_male mustelid nude on_bed otter penis sheath sleeping tawny_otter tawny_otter_(character) under_covers unwanted_erection yaoi|3409896848