He leans on me, presses his cold face to my neck and inhales deeply through his nose. “Oh, God,” he says in a breath out, then draws another shuddering breath in, and continues, “Don’t wake me.”

I love that Sirius thinks he's dreaming here - it shows just how glad he is to see Remus, and establishes the significance of physical touch in this fic.

Your descriptions are so vivid throughout, and your attention to detail is wonderful. I really like the image of Sirius tracing Remus's scars, and I also like the fact that you don't sexualise their bathing together.