Sterek AU: Derek is struggling to come to terms with the fact that he’s apparently lost years of his life and memories. Everything is unfamiliar and terrifying but there is one person in his new life who inspires a spark of recognition. Stiles Stilinski. It’s a bit jarring because as far as Derek’s concerned Stiles was a little kid hiding behind his father’s legs only a few days ago. Still Derek takes comfort in the fact that there’s someone he can tie into his past, someone who makes this whole “de-aging” story seem even remotely possible. Plus, he has to admit, the Stilinski kid grew up nicely.