Something smelled fantastic.
The aroma hit Karkat like a brick to the face. His brain was frozen on an endless loop of ohmygodwhatisthatohmygodohmygod but his feet were already following the scent down the hall and into the kitchen.
John was just pulling a tray out of the oven. "Oh, hey Karkat!"
Karkat swallowed. "John. What is that. What are you doing."
"What, the cookies?" John reached into a drawer for a spatula and began carefully prying the cookies from the tray. "I'm trying to re-create my Dad's chocolate-chip recipe. You wanna taste-test?" He plopped three cookies onto a plate, and nudged it in Karkat's direction.
He could have said no. He could have made excuses - what's a troll supposed to know about human cookie recipes? He could have done any number of things, except that they smelled so good, and he hadn't had lunch yet, and the rule of never ever ever ever waste food had been impressed on his mind from a young age, and anyway it would just be a