Billdip Smut-Shots

Birthday Surprise

This one-shot is by grellgirl16 on divianart.

None the less Dipper and Mabel's 18th birthday is right around the corner, so their parents have decided to throw them a big party inviting all their friends from school and Gravity Falls as well and it was a surprise so no one was to tell the twins about the party. One night when Dipper was fast asleep and is having a dream about him and Wendy an un invited visitor appears in his head, and you can only guess who can that be. 

"Hey ya Pine Tree" 

"Bill! What are you doing here?" 

"Oh you know the usual, messing with minds, and visiting my favourite little Pine Tree, well I guess I can't say little anymore since your birthday is in 3 days" 

"Wait how do you know about my birthday?" 

"I know everything kid, yesh its been a while I should have visited more often" 

"Well as you can see I really don't want to see you right now, I have school in the morning and I need my sleep" Bill seemed to smile as he was thinking for a moment in deep thought. 

"Alright I just came to tell you I have a birthday surprise for you" 

"You do?" Dipper seemed very confused. 

"That's right Pine Tree, but you have to wait for your birthday to find out" Bill started to chuckle. 

"Wait hold on..." 

"Welp I gotta go, se ya in three days Pine Tree" The black and white world started to vanish, Dipper tried to stop Bill because he was very worried about what he meant by a 'birthday surprise'. Once he a woke he started to feel uneasy and started to be on his guard. 

    For the next three days Dipper has been looking all over the place to make sure Bill wasn't around or any of his stupid but also harmful pranks, it was too the point he was looking like a totally idiot at school. Three days later both of Mabel's and Dipper's teachers kept them after school for about 15 mins to wish them a happy birthday but the real case was that so all of their friends can make it in time for the surprise party. Once Dipper and Mabel got a text from mom saying that she wants them to come over they started to walk towards their parents house and then once they opened the door. 

"SURPRISE!" All of their friends from school and Gravity Falls was over for a big party. 

"Wow this is amazing!" Mabel said with stars in her eye's. As the twins were enjoying their big party Dipper had to go get a drink when he felt a poke on his back then a familiar voice spoke up. 

"Hey ya Pine Tree, Happy Birthday!" Dipper spits out the drink he already had in mouth and turned to find a human Bill Cipher standing in front of him. 

"Bill? Is that you?" 

"The one and only Pine Tree" 

"What are you doing here, my parents never invited you, heck they don't even know your real" 

"Well now they do, I already introduced myself" 

"Wait what!" 

"Relax Pine Tree, I didn't tell them who or what I really am" Dipper sighs in relief 

"Thank goodness, now is this the surprise you have told me about three days ago?" 

"Well part of it" 

"What, there's more" 

"Oh yes, but it will have to wait until after the party" Bill smirked, then he started to walk off and mingle with some of Dippers friends. Dipper constantly began to think about what other surprise does Bill have in store?