Siriu felt all the fight drain out of him, leaving him exhausted and empty. He couldn't bear to look straight at Remus, he didn't deserve the love he knew he'd see there, but he also couldn't pull away. Remus has asked, no, begged him, and Sirius had never learned to say no.
He nodded, once, rather jerkilly, then let him self crumple forward against Remus' chest. He dug his fingers into the smaller boys shirt and held on for dear life. He wasn't sure he could do this, but for Remus, and for Peter and for James and, and for Lily, he would try.