4boys, ^_^, animal_ears, bangs, blush, chibi, closed_eyes, facial_hair, fiery_horns, forked_eyebrows, glowing_horns, goatee, greyscale, horns, large_pectorals, male_focus, monochrome, multiple_boys, muscular, muscular_male, pectorals, short_hair, smile, sparkle, thick_eyebrows, topless_male, upper_body