Author's Note- Wow! So many people have been reading this! This is so incredible. Thank you all, you're amazing!

Mabel's POV

I smack Dipper across the face, grab William's hand, and we run. I think I just reached the point of no return. I barely care. I don't want to go back. I wouldn't change a thing, even if I could.

"Thanks, Shooting Star," William says as we run.

I look behind us. They are chasing us, and catching up. "Don't thank me yet."

I wake up and twirl around, excited for a new day. Dipper looks at me.

"What up with you?" he asks.

"I love life, and I love love, and I love William, and I don't care who knows it!" I explain as I spin around. Dipper laughs.

"I'm glad you found someone who makes you happy," he says. "Just, settle down. If you keep spinning like that, you're going to-"

I topple onto the floor in a heap.

"- fall," Dipper finishes.

I pop up and hug Dipper. "I don't care, I'm to happy to feel physical pain!"

"That doesn't make sense," Dipper informs me.

"Since when do I make sense?" I ask, genuinely curious.

"Point."

Whatever that means. "I'm going to go see William!" I say cheerfully. Suddenly, Dipper looks worried.

"Mabel… I um… remember when we were twelve and switched bodies and Stan gave you 'the talk' and…"

"Ew, yes, please don't remind me!" I shriek.

"Well, um, William might try to… um… get you to… um…" Dipper looks distinctly uncomfortable. Oh god. That?

"We did not do it!" I say angrily. "And if we had, then that would not be your business!"

Dipper turns bright red. "Sorry, just looking out for you."

"Oh my god," I rant. "Oh my god, you are five minutes younger than me, not five years older! Never ask about that again!"

Bill's POV

Mabel comes up to me in the clearing, looking very angry.

"Am I in trouble?" I ask.

"No, my twin brother is," she hisses. "You will not believe what he said to me!"

She explains her encounter, and by the end, I am literally hunched over laughing.

"Sh-Sh-Sh-shooting Star, that's just your brother trying to protect you! Albeit in a rather pathetic manner, but don't be too angry. He's a good guy, just a little bit socially awkward," I laugh. She begins to smile.

"I guess it was pretty funny," she admits. "Hey, you won't actually-"

"No, of course not," I reassure her. "We're fifteen, and I come from a time where you had to be married. Don't worry so much."

She kisses me quickly. "Hey, you want to grab something from the Diner?" she asks.

"You have to ask?"

Mabel's POV

We're sharing a milkshake when Dipper comes running in.

"I decoded the wheel," he tells me, ignoring William completely. "I'm the pine tree, you're the shooting star, Soos is the question mark, Stan is the fez symbol, Robbie's the stitched heart, Wendy is the Ice, Pacifica is the llama, the author is the hand, Gideon is the star, and I'm pretty sure the glasses are Stan's twin brother. Now if I only knew what it meant…"

"It's instructions," William says quietly. "If you can decode it all, it tells you how to kill Bill Cipher."

The table becomes very quiet.

"How do you know about it?" Dipper asks slowly. "No one knows about Bill Cipher, much less how to defeat him. The only person who knows is probably Bill himself."

I clear my throat. "Dipper, that's preposterous, William has been living in this town for a while now, who knows what he's picked up?"

"Um, he is sitting right here," William mentions amiably.

Dipper looks William over, taking in the blond hair, the yellow shirt, and the eye patch. Fear crosses his face. "I've got to go. Take care of yourself Mabel. Be careful," he says before quickly leaving.

Bill's POV

"He knows," I tell Mabel as soon as he's out of earshot.

"Well no duh, you made it kind of obvious!" she exclaims. "You have got to play dumb sometimes, William, or everyone will know!"

Playing dumb… not my specialty. "Maybe I should just avoid your brother."

"Are you crazy?" she asks.

"Yes," I acknowledge. She rolls her eyes.

"More crazy than usual," she clarifies.

I laugh. "What's so bad about avoiding your brother?"

She puts her hands on her hips, and raises one eyebrow. "He's my twin. I am almost always with him. Do you want to avoid me? Because that's what would end up happening."

Now it's my turn to roll my eyes. Um, eye. "I'm smart enough to get around that Mabel, I can read his mind, for crying out loud!"

"So have you been reading mine?" she asks, suddenly up in arms. "Is that how you're so perfect?"

I'm taken aback at this. "I'm not perfect. And I can't read your mind, it's too complex. Your brother has a mind like that book he reads: organized and clear. Your mind is more like an abstract painting that I can't figure out," I try to explain, flushing. Mabel smiles, pleased. Thank god.

"I was always the artistic one," she says.

"I know," I say, tucking back a strand of her hair. "I've been watching you since you were twelve."

"That's creepy," she says, leaning across the table.

"I suppose," I admit, also leaning in. "But you love it."

"Yep," she grins, as our lips touch.