Rule 34 Dev - 2020 absurd_res anthro anthro_only anthrofied ass ass_focus ass_up back back_muscles back_view balls balls_focus balls_outline ballsack big_biceps buff butt_focus classroom ears_up english_commentary english_text eraser feline feline_humanoid fit fit_male from_behind furry furry_only highres humanoid humanoid_genitalia javacat.io male_only marker math multicolored_fur muscles muscular muscular_male naked nude nude_male numbers original_character school sexually_suggestive smile smiling speaking speech_bubble standing suggestive suggestive_gesture suggestive_pose tail talking talking_to_viewer teacher teaching white_board writing writing_on_wall writing_text|5571818336