A shot Gravity Falls fic requested by justalittleanimated in Tumblr.
Contains a little hidden Pinecest.
Something important
"Eh, what was that about a vampire boyfriend? Mabel!" Dipper ran lively into the room, following her. On the other hand she walked lively, yes, but in a different way. She was smiling, a happily smile which fill all hers face.
She went to the bed and jumped onto it.
"Mabel!" Dipper came after, swiftly. "This is important!" said again, reclaiming hers attention.
Mabel rolled hers eyes. She stopped jumping.
"Whaaaat is soooo important, Dipper?" asked clearly bored.
"What you said before! You said you had a vampire boyfriend!" exclamed he like it was obviously. And it was, at least for him.
"And that is the thing that is soooo important, Dipper?" Mabel rolled hers eyes again.
"Yes!" Dipper's voice had a urgently tone.
"Buuuuuh!" Mabel dropped back. Hers back fell onto the bed with a muffled funny sound. "That isn't important, Dipper! You're bored!"
"What?" Dipper protested inmediatly. "It is important! I mean… were you dating with a vampire and you didn't tell me anything?" He was blushed while he speak, offended.
Mabel glared his brother and titled hers head ike she was thinking. And she did.
"I don't know, Dipper. It was simply a phase. You now. Nothing" she shrugged at the end of the sentence.
Meanwhile Dipper seemed incredulous.
"But you were dating a vampire!" repeated. He could predict his sister reply and emphasized each word. "You're increible, Mabel! Did you really not see it important enough to tell to your brother?"
For a second Mabel went to reply and then stopped, glared again towards Dipper. Then hers lips made a little "o" of surprise or suddlendly understanding.
"You're jealous!" exclaimed.
Definetly that wasn't the response that Dipper waited or wanted. Dipper took a few moments to realize what Mabel had said. But at the same moment the did, he blushed again.
"W-what are you saying? No! I'm not jeaulous! I only can't believe you didn't mention it" he tried to explain himself.
It was too late. Mabel's smile had return, brilliant and enthusiastic has always. She was standing on the bed again, fully of energy again. Like always. Like Mabel Pines. Exactly like Mabel Pines.
"You're jealous" mocked softly. "You're jealous!"
"I'm not!"
Even Mabel, with all hers lack of inhibition, could recognise when hers brother start to be upset. In fact, she more than anyone recognise that moment. She sat down again, but hers smile stayed and she could not avoid balancing legs happy.
"Eh, Dipper" she said after a few moments in silence. Dipper still had his ears still red. "I'm not going to leave to be your sister. Boyfriends don't matter, do you know?" spoke softly, calmly.
Dipper didn't answer, still quiet, still blushed. Less than before, but still a bit.
Mabel jumped out of the bed and skiped to hers brother. Then she kissed him on the cheek.
"You're my brother, yes?" said, with a big smile. The biggest and most brilliant smile in the -his- world.