safebooruhttps://safebooru.org/index.php?page=atom&tags=2boys anubisu-no-sinpan arm behind head arms behind head brothers child closed eyes clothes around waist dated dual persona heart heart in mouth jumpsuit karamatsu lying male focus matching outfit monochrome multiple boys on back osomatsu-kun osomatsu-san osomatsu (osomatsu-kun) siblings simple background smile twitter username v-neck white background2024-06-04T09:46:21Zsafebooru