Mable knew her brother had feelings for the Demon. She just knew the way he looked while talking about him screamed 'in love'. Especially after Bill got the new human body of his. She didn't see anything other than the same yellow triangle, but apparently, Dipper was intrigued by his new form. He had long limbs, blond hair, and one blue eye, the other hidden behind an eyepatch bearing his mark. Dipper had made a remark about the change multiple times since the twins saw it.

She also knew Bill had feelings for her brother. Whenever the twins faced off against him, he always talked to Dipper, always looked at Dipper first, and always checked on them by visiting Dipper. And no matter how 'interesting and smart' her brother was, no person was worth that much attention if it wasn't some feeling behind it all.

So she laid out a plan. A perfect, foolproof plan that would definitely bring her brother and his 'secret' crush together. Of course, she could not do this alone. So she had to include Wendy, Soss, and gruncle Stan. She didn't know if Ford would want to take part in bringing together his nephew and arch-nemesis, so she didn't ask him.

Her team of shippers grew when Pacifica and Gideon showed up at their door one day in the middle of their plotting. So they joined in, claiming that they had always seen the attraction between them. They joined the group soon after.

Their plan was simple. Well, as simple as they could get it. Mable would drag Dipper into the woods, where they would try and look for something connected to Bill. Stan, Gideon, and Pacifica would summon Bill and keep him occupied while Mable led Dipper towards them. The two would see each other, go into their usual staring moment, and Wendy would trap them both with the help of Soss.

The plan actually worked, and soon Dipper was pounding on the walls of their prison, ignoring Bill hovering to the side of him. "Mable! Let us out!"

Mable laughed from the outside. "No can do, Dipp Dipp. You are staying right in there so you can face your feelings. We won't let either of you out until you admit that you like each other."

Dipper sighed and turned to Bill. "Can't you do something?" He asked, not really looking at the Demon, opting to talk to the wall instead.

Bill scoffed. "Of course I can. Powerful demon ring any bells?" He said, doing a little spin in the air. "Ah, humans." He snapped his fingers

........ and nothing happened. "What?" He said, sounding unsure. He snapped his fingers again, twirling his cane for extra power and looking around expectingly. "What have you done?!" He shrieked once he realized his predicament. Bill slowly started to lose his cool over the situation.

Gideon looked smug. "I mobilized your powers for a few hours. It took a lot of time and magic, but it's worth it if Billdipp becomes canon."

Mable high-fived him with a sick grin. "Nice Gideon. Now brother. Talk." She said, looking expectingly at her brother from outside the clear box.

Dipper shook his head at Mable, arms crossed. "Mable! This is madness! What 'feelings' are you talking about? Bill and I feel nothing but hate and competition towards each other."

Bill looked away, not wanting to look at the boy as his words hit him. The walls were invisible, so the group could see exactly what was going on in their prison. He knew he had to do something, but he didn't know what.

Dipper dared a look at the yellow demon before letting out a puff of air. "Bill, can you still do magic inside this place?" He watched as Bill summoned a cup of tea. He took a sip of it, letting out a satisfied sigh. "Good. Make the walls dark so they can't see in."

Bill realized what Dipper was thinking, and snapped his fingers twice to paint the walls surrounding them. They were submerged in darkness, and Dipper fumbled around for one of the walls, surprised by the sudden darkness. "Bill!" He hissed out. "Some light please?!"

Bill sighed and made a ball of light appear, the glowing orb flying around softly. "Why do you have to ruin the fun Pinetree? You looked cute stumbling around in the darkness. I could have had some fun with you."

The younger gave the older a look, shaking his head. "Really? What if they can still hear us?"

Bill waved his hand. "Relax. I made it soundproof. I'm betting they are stomping around out there right now, wondering how they can fix it You humans are so amazing to watch when you don't get things your way. And I should know. You don't always get what you want after all." The dream demon watched the male Pine twin flush all the way from the tip of his ears to the end of his neck.

Bill was right. Mable and her fellow shippers were frustrated with the demon for stopping their perfect plan. "Gideon! I thought you made it so that he would NOT be able to use his magic!" Mable faced the platinum-haired boy.

"But Mable, sweetie, I did. He just used magic inside the cube. He didn't try to get out, so it didn't stop him." Gideon said, clearly not ready for the wrath of Mable.

The girl in question let out a loud groan and turned to the now black cube in the woods. "Fine. Be that way Dipper. But you still can't get out before you talk about your feelings and confess."

The twin on the inside sighed. "Bill. Why don't we just tell them?" He looked up at the demon from his place on the ground where he had leaned against the wall, his head back against it.

The demon floated down and moved them both, placing Dipper between his legs and his back against one of the walls. "I don't know Dipp. You were the one that wanted to keep it a secret until you were ready." He slipped the signature cap of the crown of brown hair before kissing it, his fingers tangling into it, soothing the boy.

Dipper eased into it, loving the feeling of his boyfriend playing with his hair. "I know, but if we don't we are going to be stuck in here for a long time. And I kinda want to tell them. Just get it over with you know."

Bill hummed softly, his lips in a soft smile while watching his precious human nuzzle against him. He moved his hands to Dippers waist before kissing the side of his neck, Dipper humming in appreciation at the affection. Dipper always loved the moments when the demon allowed himself a second of peace and cuddling. It made him seem more human. 

"Whatever you want dear," Bill said, grasping Dipper's jaw to turn his head, planting a tender kiss onto his soft lips.  "I'll be with you every step of the way."

Dipper nodded, taking a deep breath before getting up, pulling Bill with him. He closed his eyes for a moment, letting the feeling and thoughts settle. He was really doing this. He was revealing their relationship to the people he cared about most.

Bill waited, giving his brunet boyfriend all the time he needed.

With a sigh Dipper opened his eyes, locking them with the demon. "You can make us visible Bill. I'm ready."

With a snap of a finger, the black paint disappeared, and the couple was once again visible to the group waiting outside. Mable was at the side of the cube in seconds, pressing her face against it. "So?" She asked.

Instead of answering his twin, Dipper simply reached out, grabbing Bill by the front of his shirt and tugging, bringing their mouth together in a soft, passionate kiss. Bill reacted instantly, wrapping his arms around Dippers waist, pulling their bodies closer, deepening the kiss. Dipper instantly forgot about their audience, simply because of the love Bill showed him in their shared kiss. 

Mable was frozen for about three seconds before she started screaming, running in circles and yelling 'BILLDIPP IS CANON!!! OH MY GOOOOD!!!!' The others mirrored her action, almost forgetting about the couple.

Bill and Dipper separated, Dipper preparing for angry faces and harsh questions. Instead, he got a bunch of headless chickens. He gave Bill a questioning look. "Mable?" He asked slowly, afraid of getting his sisters attention.

Mable snapped to his side in seconds, pressing her face close and grinning widely. "Yes, dear brother?"

"Aren't you mad I'm in love with Bill? After all, he did? No questions about us, or why I didn't tell you I was gay? Nothing?" He was honestly prepared for her to scream and shout in anger about his betrayal and how he had lied to his sister about important things in their lives.

Mable laughed. "No silly. Why would I be angry? My brother is happy, and I could care less about your sexuality. I care about you Dipp, no matter what. Okay?" Her face turned soft as she realized why her brother hadn't said anything earlier.

Dipper let out a breath he didn't know he was holding, and a tear unknowingly trickled down his cheek.

Bill noticed, and immediately wiped it away, hugging his lover close. "Don't cry Beautiful. You sister still loves you, your family is not going to abandon you, and I can finally take you on as many dates as I want. Everyone wins."

Dipper gave a breathy laugh, wiping his nose. "Yeah. Can we just go now? I'm ready for a nice cup of hot chocolate and a movie night."

Mable smiled, nodding her head. "Of course Dipper. Gideon? Can you take this thing away?"

Gideon appeared at her side chuckling nervously. "Well, you see." He started looking away from the trio. "As funny as it is, I... Don't know... How to? He he."