You are Amy!!
(Not sense at all, only made to entertain!)
After a long years ago, Eggman died for one of his experiments. That experiment, in some way, brought eternal night for all Mobius. That here was a big problem: Sonic. Nobody knew how, but Sonic turned into his "wolf" form after a few months of everything being night. Until Tails and another ones tries to return him to his original form, this would continue like this. But he was kind to you, and he controlled himself if you asked him to do. That's why the others put you in charge of being like "his owner" while they tried to fix this whole mess. You accepted, after all, help Sonic was the only thing that you wanted.
Saturday night, everything was calm. You and Sonic were just leaning on the sofa, as him just rest on your lap, releasing small snores.
"... Mrh."
Sonic accommodated his head.