Uhm...
Did I miss something last night?
Other than me acting like an idiot:
Oh god, I'm actually gonna say something that requires thought
... Seriously though, you're right. Our relationship is in no way sexual, and you are not above eighteen, and I'm not above 18. By the time you are eighteen, I'll be fifteen (sixteen in 7 months). Still a two year, seven month difference. Even if it is about two and a half years, there's nothing sexual at all about our relationship.
Okay, I'm done saying things that require thought