"Pine Tree! Pine Tree!"
Dipper glanced up from the book he had been reading and smiled at his fellow human (of sorts). "Hey Bill, what's up?"
Bill looked almost giddy with excitement. "I made something for us! Look!" He opened his hand to reveal two rings, one gold with a triangle etched into it, the other a bright blue metal of some sort with a pine tree insignia. He took the latter and put it on his ring finger, grinning widely. "They're magic! They'll strengthen our mental connection. These are just prototypes, but I'll get the real thing perfected soon." A nervous smile lit up his face. "Will you do me the honor of wearing one?"
"Sure, of course." Bill took Dipper's hand and slid the ring on. Dipper examined it more closely; it really was beautiful, and well-made. "Thanks Bill, it looks incredible."
"Promise you won't take it off until I get the final model?" Dipper hadn't noticed, but Bill seemed more nervous than he had ever seen him before, he was usually extremely confident.
"I won't, not if you don't want me to. Bill, is everything okay?"
Bill tackled Dipper in a hug, then dashed out of the room again. Dipper sat in stunned silence, listening to Bill's shouts of "He said yes, he said YES!" and what sounded like a room full of people congratulating him.
Dipper stood up and went into the next room, where a multitude of Bill's friends were clapping the demon on the back and pouring some pink mystery liquid into champagne flutes. They cheered as he entered the room, and Bill grinned mischeviously as Dipper marched up to him. He grabbed Bill by the collar and asked in a low voice, "Bill Cipher, did you just propose to me?"
"Er, yes?" Bill laughed nervously.
Dipper let out an exasperated sigh, then pulled Bill down for a kiss, exciting a few more cheers and catcalls from the room. "You know, you could have just asked, like a normal engagement," he muttered with a smile.
"But where would the fun be in that?"
Dipper chuckled, pulling away and releasing Bill. "Alright. I guess I should phone home, tell them the good news."
"You think they'll be happy?"
"Hell no. But it's not their decision to make. I can't seem to please anyone, might as well make myself happy."
Bill grinned. "Want me to come with you?"
"Sure! That'll piss off Ford even more, it'll be hilarious!" The happy couple left the room, eyes to their new bright future.