I loved this story; loved it so hard it could have been written for me. There's the obvious hotness - and Harry's cock-worship hits one of my biggest kinks. But sex aside, this story is awesome. I love that it is sentimental/sad over hagrid's death without being overdone, I love Severus' lines, which are so very in character and yet not cliche, and their uncertainty around each other - those tentative awknowledgments of desire are delicious.
I admit I'd guessed the ending, but I was afraid I'd be wrong - I'm so glad I was right! I don't think I could have taken it otherwise.
I have my strong suspicion on the author. But, overall, a really beautiful story you've written here, I didn't want it to end.