You're not in love with me

[Karlnap]
Karl and Sapnap start 'dating' to spite the former's parents, but while Karl is six states away at a family reunion, many texts and calls are exchanged, and Sapnap realizes that he's starting to develop actual feelings for his best friend. He doesn't know how to bring it up, and he certainly doesn't know how to tell if Karl sees him as just a way to piss off his parents or as more than just a fake boyfriend.
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This fic was inspired from the song 18 by Anarbor, and if you haven't listened to it, I highly recommend.
This fic is not about the real life characters at all, and is based mostly on their personas.
I had no idea what I was doing with any of this, but enjoy :]

(No acts of extreme violence or sexual stuff but rated mature because there's a lot of underage drinking/drug use and no characters are 21+)