Rule 34 Dev - 2021 4:3 5_fingers abs anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro athletic athletic_anthro athletic_male balls big_penis biped blue_eyes blue_hair blue_mane demon digital_media_(artwork) ears_back english_text equid equine equine_penis erection fangs fingers fire flaming_hair flaming_mane flared_penis fully_sheathed fur genitals glowing glowing_eyes grey_body grey_fur grey_penis hair hand_on_hip holding_penis hooves horse looking_at_viewer male male_only mammal mane mane_hair medial_ring model_sheet mottled mottled_genitalia mottled_penis navel nude pecs penis pink_penis pivoted_ears pose pseudo_hair pseudo_mane reclining sabretoothed_ermine sheath signature smile smiling_at_viewer smirk solo standing teeth text unguligrade_anthro|5988659320