The Light on the Dark Side of the Moon - SiriusxRemus

The story starts on the Hogwarts Express, September 1st 1976, the dawn of the sixth year for the Marauders. James, Sirius, and Peter are up to no good, as always, but this time the mischief is for a dear friend. The three boys have successfully become unregistered animagi, just to help with Remus' lycanthropic episodes that happen on a monthly basis.
As the year goes by, Remus and Sirius grow closer by the day, and James is completely oblivious (his son will inherit that trait). Sirius starts to feel something for the other as the year progresses, but he isnt sure if his werewolf genius of a companion feels the same.
And, alas, Remus feels the exact same, but he doesn't know if his animagus, trouble making, raven haired friend feels the same about him.
They will soon discover the truth about one another and how they feel, but how will it effect the relationship they've already formed?