Bill Cipher x Reader [Chapter One]

Title: The Deal
Supernatural/Gravity Falls crossover.
Prologue is here.

Looking up as the voice requested, she saw a bright yellow triangle floating above. With wide eyes, the girl asked, "Who are you?"

"Bill Cipher, at your service."

She brought her head down to look forward. "Where am I?"

'Bill' floated down, his body no longer the shape it was before. Instead, it was replaced with something similar to a human body. "You're in the Mindscape."

"The Mindscape?" She questioned, glancing around. Getting a better look, she noticed a rather familiar landscape; the place she had lived. "I have never heard of such a place." She looked back at the humanoid dream demon. "Why am I here?"

Bill grinned sadistically. "Simply setting things in motion."

She furrowed her eyebrow, not bothering to ask him to elaborate, knowing he wouldn't give her a straight answer.

In a flash, Bill was gone. "Actually," his voice came from behind her, "I brought you here to make a deal." His hands resided on her shoulders.

"A deal? What sort of deal?" She scoffed lightly, rolling her shoulders in an attempt to get his hands off. He only tightened his hold in response.

"I can give you the life you always wanted; a family that actually seems to care about you and gives you the attention you deserve."

She considered it quickly. "And what do you want in exchange?"

Bill used his index finger to push her head to look at him. "In exchange, given in a few years time when I think you're ready, you marry me."

A hand tore his away from her, a sound of surprise escaping her lips. She moved a few feet away from her, holding herself at midriff. "What?" She said, a look of disgust covering her features.

"It's a fair deal, don't you think?" If possible, her expression got more disgusted. "Listen, in that time, I will visit you multiple times and, eventually, you will learn to like me."

"Like you? How could you ever make an accusation like that? I don't even know you!"

Bill sighed. "I'm giving you a once in a lifetime chance. Not many people get an offer as great as this."

The girl was silent for awhile. She looked to the ground, mulling over her options mentally. Biting her lip, she looked up, "You promise to keep your end of the deal? A nice family?"

He looked her in the eye. "Yes, I promise." She detected no dishonesty; no lie to his words, nothing but sincerity. She didn't know it was possible for a demon to be this kind (it wasn't hard to figure out what he was).

"Fine," she held her hand out for him to shake.

He took it gratefully, kissing the back of her hand like a gentleman. "It's a deal then."