Rule 34 Dev - 10s 1boy bad_id bad_twitter_id briefs brown_hair bulge grey_background grin heart highres male_focus male_underwear matsuno_karamatsu matsuno_osomatsu no_pants o2_(o2mm) open_clothes open_shirt osomatsu-kun osomatsu-san osomatsu_(series) red_eyes shirt simple_background smile solo toned underwear|6958741374