time-travel: here we go again

[readyrex]

After searching on my own for a while, I'm renewing a request I made some time ago for a time-travel fic in which Harry goes back in time to the Marauder-era and is sorted into Slytherin where he is befriended by Snape. They end up either staying together in Snape's private room or sleeping together in Snape's bed. Any suggestions are greatly appreciated.

One more note, I do know it's NOT "Hogwarts Takes Care of Its Own" or "Return of the Prodigal".
Cheers!

Update: A Time to Change by Sansa