1boy abs armpit_hair arms_behind_head bara biceps blue_eyes brown_hair bulge erection erection_under_clothes facial_hair fate/grand_order fate_(series) goatee highres inunekostudio long_sideburns looking_at_viewer male_focus muscular muscular_male napoleon_bonaparte_(fate) navel nipples pectorals red_background scar short_hair sideburns simple_background smile solo topless_male underwear very_short_hair