Very nice! I love Remus-based stories, and you did him perfectly in this, especially how the flashbacks were written like a child was telling it. I did love this line:
"That's what they all say in the beginning." With a smirk, Fenrir walks away toward the cottage, leaving him with a sinking feeling in the pit of his stomach.
I loved it! *grins* And nice name meanings. :D
Nice job with this. My favorite part was "Daddy," Remus says, grinning proudly, blood staining his teeth, "I did good."