Note: 9/7/2017

Here is a quick note. This is my first fanfiction I have ever written. It's an erotic Gravity Falls fanfiction. I'm warning you! I'm not good at writing! I know this chapter is filled with grammar errors and bad writing. I am trying to clean up as much as I can. I hope you enjoy it ? (I even changed the story a little bit) :o

P.S.: All the characters are 2 years older but it still the first time that Dipper and Mabel came to Gravity Falls in the summer. Enjoy!

It was a lonely and quiet night in the small town named: Gravity Falls. Everyone was sleeping. The night sky was filled with stars. And the moon was shining through the clouds. The moon rays shined through dippers window and touched his forehead. Dipper was nervous and stressing out in his bed while Mabel was peacefully sleeping. He was stressing out because Wendy had asked him on a date earlier today. Dipper was rethinking the scene over and over again in his head. Wendy wasn't wearing any bra that day. You could see her nipples pinching through her shirt. Dipper spied on her all day. When her shift was over she slowly walked towards dipper and asked him if he wanted to see a movie tonight. Dipper was heavily breathing and said yes while his penis was poking a tent in his trousers. Wendy replied "Nice! Meet me at my house around one in the morning, I will leave my bedroom window open." Dipper almost fainted. In his head, he was screaming and his armpits could be compared with Niagara Falls. A button from Wendy's blouse popped out and her cleavage was showing. Dipper tried to not stare but couldn't resist. Dipper said "I think it's on the ground, eh heh." Wendy replied "of course it is." Dipper thought to himself "Idiot, idiot." Wendy bend over to dipper to grab the button, her medium sized nipples were visible. Dipper almost came in his trouser, but he ran upstairs before he came in his pants. While Dipper was running upstairs Wendy said to him "till tonight bro! Bring some snacks!" Dipper was jacking off of the thoughts that he saw Wendy's big, round tits with nipples! He came and he was lying on his bed thinking about fucking Wendy.

It was now about 00:30 so dipper took off his shirt and put on his normal clothes. Dipper tried to make no sound at all, because Mabel was sleeping. He opened his window and stared down at the ground. He turned his head towards Mabel and told her goodnight. Dipper jumped out of the window and fell on his back. Dipper gently rubbed his back. He began to walk towards the forest. It was very quiet in the forest, every now and then he could hear a coyote howling in the night. Dipper was still nervous and calmed himself by thinking about life. He thought to himself "I should definitely do more late-night walks". Dipper drowsed off in his thoughts until he received a message from Wendy.

WENDY: where r u ?!: 00:57:23

DIPPER: I'm on my way!: 00:57:46

It was it was almost one o'clock. Dipper started to run. He was very close to Wendy's house. Dipper almost tripped over a rock. Finally, he was there he could see Wendy's window. The lights were off just like in the rest of the house. Dipper thought "They must be sleeping". Dipper grabbed a conveniently placed ladder underneath Wendy's window. He tried to grab the ladder but failed. It was too heavy. Dipper felt ashamed, but thought to himself "do it for Wendy". And he moved the ladder to the right spot. While he was climbing the ladder, he thought "That was kind of cheesy". He climbed through the window and entered Wendy's window. All lights were out. He whispered as quiet as possible "Wendy?" No one responded. He looked at his watch and saw that it already was 01:12. "ah shit, I'm late. She must be sleeping." Dipper went back to the window, and just as he wanted leave he felt something poking on his head. He turned around and was pushed towards Wendy's bed. He screamed. Dipper heard someone laughing it was a very familiar laugh. And then it came to him. "Wendy!?" Dipper shouted. Wendy was laughing in tears and said "That is for being late, you asshole." Dipper was stressing because he didn't want to wake up Wendy's family. Dipper whispered to Wendy "Is your family not sleeping?" "No, no." Wendy shouted. "They are having a father son(s) camping." "fair enough." Dipper said. Dipper couldn't see Wendy and asked her if she could turn on the lights. Wendy stopped laughing and didn't respond to Dippers question. Dipper slightly saw Wendy walking towards him. Wendy slightly touched Dippers face. Dippers heart started to pound very fast. Wendy's breasts were poking against Dippers chest. Wendy said to Dipper "You think you know a lot about me, Dipper. But you don't know anything" Dipper awkwardly chuckled. "I know that you have been staring at me all day. I removed my bra on purpose… For you, Dipper." Dippers cock was rock hard and poked Wendy. Wendy turned on some dimmed light. Dipper saw Wendy. Wendy was wearing a loose white tank top without bra and some sport shorts. Her hard nipples were poking through her shirt. er Dippers head became red and he almost choked on his spit. Wendy pushed Dipper again on her bed and jumped right on him. Wendy put her arms around dipper. Dipper could feel her hard nipples pressed against his chest. Wendy whispered in Dippers ear: "You can touch me anywhere." Dipper slowly caressed Wendy's back and pulled her towards him. They slowly kissed each other. Dipper felt relieved in his head but he also felt adrenaline rushing through his body. He thought to himself "I DID IT! I kissed Wendy!" Wendy told dipper to touch her tits. Wendy had large tits for a 17-year-old. Dipper put his hand underneath Wendy's shirt. He was gently touching and grabbing Wendy's e-cupped breasts. Wendy moaned a little and hugged Dipper more tightly. Wendy tried to remove Dippers pants with her feet, but instead rubbed Dippers cock. Dipper moaned and kissed Wendy. Wendy successfully removed dippers pants and underpants. Dippers penis was slightly touching Wendy's ass. Wendy slightly tilted her ass up and down to give Dipper a nice ass-job. Dipper removed Wendy's shorts and slowly pressed his cock in-between Wendy's butt-cheeks. Wendy sped up her movement and then stopped. She turned around and moved backwards. Wendy's ass was in Dippers face and Dipper never felt so home. Wendy was starring sultry at Dippers 7-inch cock. It was as hard as stone. Dipper was licking Wendy's clit while massaging her buns. Wendy slowly putted her fingers around Dippers cock and moved it slightly up and down. Pre-cum already left Dippers cock making Wendy's hand all wet. Dipper took a small breath break and he could see that Wendy's pussy was leaking and throbbing. Wendy said "Please Dipper, continue!" Dipper continued to suck Wendy's pussy. Wendy slowly started to lick the pre-cum that came out of Dippers penis. And then she opened her mouth and inserted Dippers cock in her mouth. Wendy's mouth felt soft warm and moist. Dipper moaned loudly. He rubbed his hands all over Wendy's body while licking her pussy. Wendy screamed "I'm cumming!" And squirted all over Dippers face. After that dipper came and filled Wendy's mouth with hot cum.

Dipper and Wendy were both lying next to each other on her bed. Dipper said "This was intense!" Wendy replied "Yes, but were not done yet!" "I want more of your semen inside me Dipper, I want it! I need it…" Dippers heart started to pound very fast. He thought "This is it! I'm going to lose my virginity to the girl of my dreams!" Dipper caressed Wendy's face with passion. Dipper was laying with Wendy in a missionary position and Dipper gently rubbed and pressed his cock against Wendy's pussy. Wendy whispered: "Put it in, my big Dipper…" Dipper slowly pushed his cock inside Wendy's vagina. Dipper felt a rush of euphoria and thought to himself "This is so much better than jacking off." Wendy moaned loudly and Dipper was speeding up. Wendy could feel Dippers long and thick cock inside her pussy. It made her very wet. Dipper kissed Wendy gently while fucking her and touching her nipples. The sex could be heard outside. Dipper felt Wendy's womb. Dipper looked at Wendy's beautiful face, and thought "it's so perfect." Dipper began to suck Wendy's nipples and was even fucking her faster. "I'm going to blast Wendy!" Dipper screamed. "DO IT! I want it all, destroy me! fill me up!" Dipper gave Wendy's pussy one last pound and filled it up to the top with hot and moist cum. The cum was dripping out of Wendy's pussy. Wendy was squirting all over Dippers cock. They both came and fainted.

It was 11:34am. Wendy woke up Dipper and told him that he had to leave immediately. Dipper asked why and Wendy told him that her Father and brothers are coming home any minute. Dipper asked Wendy "What about the mess we made?" Wendy told Dipper not to worry and that she is going to take care of it. Wendy told Dipper that she had an amazing night with him. Dipper smirked and kissed Wendy and he walked towards the door. Right before Dipper left the room Wendy asked if he brought the snacks. Dipper totally forgot the snacks and said no. Wendy said that he was lying and told him that he brought his penis. Dipper nervously laughed and left the house.

Dipper walked back to the shack through the woods. He was rethinking the whole night. He thought to himself: "I'm a man now." He stopped at a small pond with a waterfall and lied down on the ground. He was looking towards the beautiful blue sky with small plumbs off clouds. He was listening to the birds chirping and the waterfall roaring. He was becoming one with the nature. He drowsed off a little and stood up and walked back to the shack. Before Dipper arrived at the shack he thought to himself "I have to erase my tracks. They cannot see me enter the shack, they may think I left the shack last night." Dipper arrived at the shack and climbed up to the attic. He ripped his shorts while climbing. He said "Shit." And continued. While he climbed in his room he saw Mabel undressing herself right before him. Mabel didn't see him so she just continued undressing. "Mabel has large tits for her age." Dipper thought. She had c-cupped tits and they look wonderful. Dippers cock started to get hard while spying on Mabel. Dipper thought "I know it's wrong but it feels so right." Mabel turned around and saw Dipper. Mabel screamed and flinched. Mabel saw Dippers boner and got a little aroused but she tried to hide it. Dipper almost fell of the roof.

To be continued