After lunch, the twins returned to their posts at the Mystery Shack. Mabel was back on register, a little frazzled, but still a ball of sunshine. Dipper, however, was extremely concerned. 'Someone we know… but who?' the younger twin contemplated. 'If it's not Jeff, then it can't be Gideon. Mermando is taken. That weird boy band is off running around the forest. Robby is still with Tambry.' He thought it over many times, thinking of everyone who they both had interacted with. After their shifts had ended, Dipper opted out of dinner. He had to figure this out. In typical Dipper Pines fashion, he made a chart and started crossing out the impossibilities.
After going over the list for the fifth time, the young man noticed something was off. There was an extra space available for a name. Before Dipper could stop himself, he was dozing off. Darkness was replaced with a soft grey replica of the room he had just been in. A sudden realization hit the man. "Bill." Dipper's calm demeanor switched to a mix of fear and rage. "Hey there, Pine Tree! Did you miss me~?" Began the insane dream demon, taking form in front of him. "Who in their right mind would miss you?!" Dipper growled, quickly calming himself. "No one has time for you, Bill." "That's not what your sister said last night~!" Bill knew exactly which buttons to push and man was this kid easy to predict.
"W-what?!" The male's complexion grew pale, hoping that the monster was only trying to get a reaction. "You heard me, Pine Tree. Your sister can't help herself around me, though I don't blame her." The floating triangle attempted a wink. "Shooting Star loves spending all of her free time in my domain," he continued. "I'm sure you've heard her whimpering while dreaming." Dipper thought he was going to puke from this. "I will say, it's fun to get her like that. She just takes everything I dish out and wants more of it." The implications alone were putting images into the man's mind. There's no way his sweet, innocent sister would fall head over heels for this beast.
"What's wrong Pine Tree? Don't trust me? How about I show you instead?" With that, the scenery changed. Dipper was looking at what appeared to be a memory of Mabel's. She was cheerfully chatting with that disgusting demon. He always seemed to have at least one hand on her at all times. At first it was on Mabel's shoulder, then her back. Mabel's bubbly tone had gone to something more lustful and Dipper knew where this was going. He forced himself to look away and covered his ears. 'This CANNOT be real!' He internally screamed, attempting to drown out this perversion. "Oh it's real, kid. And I haven't even taken a human form for her yet. Can you just imagine the things that will happen to little Shooting Star when the big bad demon can really-" "ENOUGH!" Dipper all but screamed. "You aren't getting anywhere near Mabel again, you sick fuck!"
Everything was falling right into place. "Oh I doubt that very much. In fact, I think I'll pay her a little visit soon. She's gotta be lonely without me inside her… mind." Bill's tone concerned Dipper to say the least, but before he could respond, the dream demon was gone. The younger twin shot up from his nightmare, only to find Mabel asleep in her bed. He glanced at the clock to notice it was 4:00am. They would have to wake up in an hour or two anyway, so Dipper opted out of waking his sleeping sister. The events of that night flashed through his mind while he listened to his sister's soft snoring. 'How much of that was real?' He thought to himself, while trying to determine if he should tell his sister about the dream. Quickly deciding against it, the younger Pines twin shifted onto his side. Once comfortable, Dipper drifted into a dreamless sleep.