Gravity Falls X Reader

Little Dipper

"N-no, I didn't mean that." Soos said. "Dipper and (Y/n) will forget. They've got a 3... 2... 1..." "SHORT-TERM MEMORY! Ha ha ha!" Stan and Mabel said. "POW! We are on FIRE!" Mabel and Stan high five. "Ow, ooh, that's, aah." Stan said. "I high-five hard." Mabel said. "Ugh! Stupid Mabel! I'm not short!" Dipper said. "Me either!" (Y/n) said. Dipper reaches for Journal 3. "Oh, come on." He kicks the bookcase and 3 falls down. "There's gotta be some way to get taller." Dipper said. He looks through the book. "Let's see... "Legends of miniature buffalo and giant squirrels have led me to believe there are height altering properties hidden deep within the forest." He said. "Wait, really?" (Y/n) asked. "That's what it says." Dipper said. "Let's go find this thing. I hate being made fun of." (Y/n) mumbled. Later, (Y/n) and Dipper are walking through the forest.

"Hmm... " Dipper trips. "Ooh! Ah! Ow! Agh! Aagh." Dipper and (Y/n) notice tiny deer standing on his chest. "Whoa." Tiny eagle passes by. "Huh?" "Is that mountain lion tiny or just far away in perspective?" (Y/n) asked. The mountain lion growls and pounces. "PERSPECTIVE! PERSPECTIVE! AAAAAAH!" Dipper shouts. The mountain lion leaps and is frozen in a beam of pink light, which shrinks it; Dipper laughs from being tickled; the mountain lion meows and bites his finger. "It still hurts, but less!" (Y/n) walks over to giant crystals. "Whoa." She sees a butterfly pass through the pink light and shrink, then the blue light and grow; it knocks over a tree. "What the heck?" She cuts a crystal off with a Swiss army knife. 

Later in (Y/n)'s Dipper's and Mabel's room, Dipper had took a piece of the crystal he found, and ties it in front of a flashlight. It shines blue, then Dipper rotates it so it shines pink. "Smaller." Dipper makes chess piece smaller. "Bigger." Dipper makes a chess piece bigger. It breaks through the roof. "TOO BIG!" (Y/n) shouted. "I've been buying big clothes; I'll grow into them." Mabel said to Soos as they were at the gift shop. Dipper and (Y/n) walk in. "Hey guys, notice anything different about us?" Dipper asked. "Holy hotsauce! You've grown an extra millimeter! And (Y/n) has grown two!" Soos said. "Wh-wh-what?" Mabel gets off the chair and checks the height with Dipper and (Y/n). "What can I say, sis? Growth spurt." (Y/n) sassed. "Yeah, mine happened first. I'm gonna be taller in the end. It's science, guys." Mabel said. "What? But we're all the same height now." Dipper said. "Alpha-triplet! Alpha-triplet!" Mabel chanted. (Y/n) growls at her.

"Oh yeah? Something tells me I've got another growth spurt comin' on right now." Dipper walks away. He grows himself taller in the attic when Mabel kicks the door open. "Give it up, you two!" Mabel sees that Dipper is much taller than her and gasps. "What happened?" She asked. "Y'know, puberty and stuff." Dipper said. "It doesn't make any sense. Just a second ago you were- WAIT A MINUTE! This is some kinda magicky thing. Isn't it? Was it a wizard or something? There's a wizard in this closet, isn't there? ISN'T THERE?" Mabel asked. "What? No!" (Y/n) said. "You're telling me that there is not a wizard in this closet. You're telling me that if I open this door right now-" Mabel said. "Fine! Open it!" Dipper said. 

Mabel opens the  door to reveal nothing. "An invisible wizard! REALLY, guys?" Mabel asked. "Does he only respond to incantations? Excpecto wizzarium! Wizle! Wizar-" Mabel began. "It's not a wizard! We grew ourselves using this magic flashlight!" Dipper shouted. "Lemme see that thing!" Mabel shouted. Dipper screams as he and (Y/n) run downstairs. Mabel points to the closet. "I'll be back for you later." She runs after Dipper and (Y/n). The triplets fight over the crystal flashlight and make a caterpillar grow larger. The caterpillar crushes a car. "Huh?" Mabel picks up flashlight and uses it to make her hand grow bigger. "Ahh!" "It's okay it can shrink things too." (Y/n) uses the flashlight to return Mabel's hand back to normal size. "Normal hand karate chop!" Mabel hits (Y/n)'s hand and takes the flashlight. Mabel uses the flashlight to make (Y/n)'s head bigger. "Oh Ah ah!" (Y/n) hits her head on one of the Shack's pillars. "Ah!" She tackles Mabel and shrinks her head with the flashlight.