Rule 34 Dev - 2013 armpits arms_up ass boxer boxing boxing_gloves child clothing female fighting generation_4 hair highres human humanized loli looking_at_viewer monochrome muscle my_little_pony my_little_pony_friendship_is_magic navel open_mouth pose pugilismx shoulders simple_background smile sweetie_belle thin_waist tight_clothing underwear white_background young_human|1840145336