Gravity Falls X Reader

The Last Mabelcorn

"Once with kittens and once with tickles!" Mabel said. "It was a lot more heroic than it sounds." Dipper added. "The fact that you've dealt with Bill is gravely serious." Ford said. "So, how do you know Bill?" (Y/n) asked. "I've encountered many dark beings in my time, (Y/n). What matters is his powers are growing stronger, and if he pulls off his plans, no one in this family will be safe!" Ford said. The triplets gasp. "Fortunately, there should be a way to shield us from his mental tricks. A way to Bill-proof the Shack." Ford draws on a map of his lab. "All I have to do is place moonstones here, here, and here, sprinkle some mercury, let's see... I always forget the last ingredient!" Ford takes out Journal 1 and flips through it. "Ugh, unicorn hair." Ford said. "That's not, like, rare, is it?" Dipper asked. "It's hopeless." Ford looks at Journal 1, and adjusts his glasses. "Unicorns reside deep within an enchanted glade, and their hairs can only be obtained by a pure good-hearted person who goes on a magical quest to find them." He explained. "Grunkle Ford, can I please go on this quest? I am literally obsessed with unicorns! My first word was "unicorn," I once made my own unicorn by taping a traffic cone to a horse's head. Are you even looking at the sweater I'm wearing right now?! Not to mention that I'm probably the most pure of heart person in this room." Mabel said. "That's true, she has a point." Ford said. "I can't argue there." Dipper said. "Oh! I can go with Mabel! I've always wanted to see a unicorn too!" (Y/n) added. "So can we go on a mission to get that hair? Please please please? I'LL GIVE YOU MY BLOOD!" Mabel shouted. "Very well. But it won't be easy." Ford gives (Y/n) Journal 1." Take this." He hands Mabel a crossbow. "And this." He said. "Oooh!" Mabel said. "I haven't been in this dimension for a while. It's okay to give children weapons, right?" Ford asked. "Not really. Unless you want them to risk getting hurt or die." (Y/n) said sarcastically. Ford's eyes widened. "Uh..." he said. "(Y/n)!" Mabel scolded. "Pssh, come on, dawg" Mabel fires the crossbow through the window, setting off Stan's car alarm. "AH! IT'S THE COPS! GUN IT!" Stan drives away accompanied by the sound of pugs yapping. "Yup. Never a dull moment in this place." (Y/n) said. Mabel rolls her eyes, then grabs (Y/n)'s right hand. "Candy, Grenda, Wendy, clear the afternoon!" She runs off and pulls (Y/n) with her.

Time Skip

"It's nice to finally be out on a mission, just us gals!" Mabel said. "Forget the gal talk! I'm here to meet, touch, and/or become a unicorn!" Grenda said. "I hear if you lick a unicorn's neck, it tastes like your favorite flavor in the world!" Candy said. "Candy, I will make sure you lick that unicorn's neck, because I care about my friends." Mabel said. "Honestly, I stopped believing in unicorns when I was like, five years old. I'm just coming along to keep you kids from walking into a bear trap." Wendy said. "Stop! This is the magic part of the forest." (Y/n) opens Journal 1. "Let's see, the gnome tavern is over there, the fairy nail salon is over there, but it says to summon the unicorn, one must bellow this ancient chant droned only by the deepest-voiced druids of old." She said. Grenda takes the journal. "On it!" Grenda clears her throat. "Oy-oyoy-oyoyoyoy..." "I bet you ten bucks nothing happens." Wendy said. "I'll take that bet." (Y/n) said. (Y/n), Mabel and Wendy gasp as the fortress rises out of the ground. (Y/n), Mabel, Candy, Grenda and Wendy enter it. "The paintings airbrushed on the sides of vans were true!" Mabel said. A unicorn neighs. "Mother of mothers!" Grenda said. "Queen of dreams!" Candy said. "No way." Wendy said. (Y/n) reaches her hand up towards Wendy and makes a grabbing motion. "Eh, eh." She said. Wendy gives her a ten-dollar bill and sighs. The five girls look at the unicorn while a faun plays a pan flute nearby. The unicorn rears her head. 

"Hark! Visitors to my realm of enchantment!" It said. (Y/n), Mabel and Candy gasp, and while Grenda is doing the same thing a butterfly flies straight into her mouth, causing her to gag. "Oh my gosh, oh my gosh! What's your name?" Mabel asked. "I am Celestabellebethabelle, last of my kind. Come in, come in. Just, take off your shoes. I have a whole thing about shoes." She said. (Y/n), Candy, Grenda and Mabel take off their shoes. "Ah, ah! I'm talking to all of you!" Celestabellebethabelle said. Wendy grudgingly takes off her shoes. "Celestabellebethabelle, we have journeyed far and wide-" Mabel began. "About an hour." (Y/n) corrected. "On a mission to protect our family with your magical hair!" Mabel said. "This is your chance, Candy. Lick the neck. Lick it... " Mabel said. Candy tries to lick it but fails as Celestabellebethabelle stands her neck straight up. "Very well. To receive a lock of my enchanted hair, step forth, girl of pure perfect heart." The unicorn said. (Y/n) scoffs. "Pure of heart?" She asked. "Presenting: bum buh da bum bum ba bum bum!" Mabel kneels. "Mabel!" She said. "What? You? A unicorn can see deep inside your heart, child." She points at Mabel with her horn and her chest glows with a heart. "Ugh!" Mabel covers her chest. "And you have done wrong. WRONG I say!" The unicorn said. "I guess I do make fun of Dipper a lot, and sometimes (Y/n). And I did just shatter a window with a crossbow." Mabel said.