"You won't, you could never hurt me." And he knows Derek won't, he trusts the man that much to know that and believe it.

His brows raise when Derek kisses his chest instead and frowns at the question. "Of course I am," says Stiles, lifting his hand to card through the man's hair. "I've never been more sure." The teen then sighes and smiles a little.

"I get it, you know. I'm young and have my 'whole life ahead of me', but you know, not many people have gone through what we have and it puts things into perspective," he says honestly. "And I know what I want and who I want and he's right here in front of me."