AN- This is my first gravity falls story, I might get bashed for this ship but I don't care I love it. Please review first impressions, because then I can make certain change if needed. OH and also review because then I can see what you love about the first chapter!

This chapter is slow yes, but it sets the story up so be patient. I do NOT own gravity falls or the characters.

Story Rated- M (because of incest and language)

Warning: This is pinecest so if you don't like it don't read.

Five years after gravity falls (S3)

Mabel and Dipper now both seventeen years old had returned back to Gravity falls to visit their grunkle Stan for the summer. All the summers they spent there they had made so many friends such as: Wendy, Pacifica, Soos and Mermando even if he was more of Mabel's love interest. Then there was the unforgivable, Gideon. The stupid fucking arrogant rich boy.

First in love with his sister, which thankfully ended in a brief couple of encountering dates. Slyly, using his rich boy powers to get his dad to try to take the mystery shack for himself. Mabel hated him as much as he did, but the person who hated him the most was Stan. Stan had been at war with Gideon for many years now, every summer he would try anything to provoke him, anything to try to evoke an anger inside of him, bringing him down so he could rise up. Fucking dickhead.

Bill Cipher, the triangle guy. They had finally destroyed his enhanced form: Weirdmageddon. It was an amazing time for Gravity falls and a perfect time all those years ago when it was time for them to go home.

In the meantime, all the summers in between were nothing too special. It was back and forth every summer, misadventure's after mysteries after heartbreaks. They were just like the other ten million summers, insignificant on the scale or terrorising and adventurous

When they arrived home, it was strange to get back to normality; it was strange being able to relax and laze around. No longer solving mysteries anymore or finding secrets, destroying demons, spirits or crazy triangle guys.

Recently, Dipper had been feeling strange towards his sister. His only girlfriend was Wendy and that only lasted for a couple years before she found an new guy, a motorcyclist with Tattoos and piercings in his eyebrows. Dipper wasn't cheated on or dumped by text like the shitty couples. In its replacement he was told face to face something like: "Your cool and all, but.." bullshit. He knew it was complete bullshit.

Wendy had always accepted that he wasn't the motorcyclist she dreamed to have, so when she called him boring or not cool, it was all fucking lies so she could get out of the relationship asap.

Although Dipper had had many crushes afterwards, they never developed or anything. He was either too shy, too scared or too embarrassed to admit to them he liked them.

There was this girl who lived down the street of his parents house named Jose, she was a goddess to him, black hair, blue eyes, short, funny and cute. Flirting everyday after school and nearly even dating! He had never got far though, she grew up, got a boyfriend and forgot about poor old Dipper Pines.

It was June, hot hot June. They had just broken up from school and were on their way to Gravity falls once again to visit Stan who still robbed people with unfair bargains and a no returns policy. He still forced Dipper to find him strange and wonderful attractions to lure in customers and gain him more cha-ching. He was obsessed with money, obsessed with the green notes that gave him more goods to sell, more decor to catch peoples attention and more exaggerations to tell people about.

Mabel. His twin sister. Also seventeen years old, she was sitting beside him reading her journal on the couch, whilst leaning her head on his shoulder as she normally did on long journey's. His twin sister had saved him, battled beside him, fixed his problems and helped him solve mystery's.

When they were merely twelve he was interested in Wendy only, not thinking about his sister in that type of way whatsoever. Now it was different, last year Mabel had a boyfriend she met at their parents house. Somehow it made him mad, it made him furious with envy and jealousy. His name was Brad, but he was a five minute wonder and that soothed his soul.

Why?
He at first brushed it off, just pushing his weird teenage boy thoughts aside until one day Mabel was in her room. She in her parents house getting changed a few weeks ago and his feelings became more than real and he knew it was wrong. Dipper had heard her get out of the shower and head into her room, so secretly he followed her. Outside her room the door was open a smidgen; just enough for him to be able to peak through and get a glimpse of his sister kind of nude.

She had no bra, underwear or clothes on, just her cream towel which Dipper watched be rubbed on her to dry her skin and a separate towel for her hair. Dipper was starstruck, transfixed on this image of his sister naked when she dropped the towel. How wrong he was to be looking in the first place, yet he couldn't bare not to look away until suddenly, it was over. Mabel had gotten dressed fully and Dipper heard footsteps coming up behind him so he escaped the scene with haste.

Just in the nick of time too, Mabel had come out of her bedroom only moments later and would've caught him if he let his fantasy freeze him any longer. That was only a few weeks ago and he hadn't told Mabel any of it. He knew he couldn't, he knew he wouldn't be able to without being sent away from her forever and then he'd never be happy. The only way he would ever tell her would be if she admitted feelings towards him too, but yet that would never happen either so all he had to do was get them out of his head and move on.

Why in all of gravity falls universe would he have feelings like that towards someone who was his own fraternal twin? It was only infatuation, it was only those fucked up thoughts you may have as an adolescent blossoming into adulthood. Dipper had become accustomed to his feelings and was desperate for them to depart away, never to cross his mind again. On the contrary, he was thrilled when every thought was mesmerising and dreamy, him and his sister on the beach hand in hand or gazing at the sunset from a rooftop. (most likely on top of the mystery shack roof).

Nothing would ever be the same, his parents would kill him. His parents would send him to boarding school never to even see the light of day if he were to reveal his strange passion. It was preposterous and daft, so as grunkle Stan's place was filled with distraction, it was time to switch those fucked up thoughts off for good and go back to the normal times.

To the Mystery shack - present day

Mabel, still leaning her head on her brother Dipper, who was trying not to put his arm around her or kiss her or do anything inappropriate. They were close to the Mystery shack now, not too long to go, not too long before he could finally escape the accident that could occur. The rain was pouring and the clouds were grey, but Mabel was still smiling and humming to herself as she finally put her journal down and closed her eyes.

"Tell me when we are here okay, Dipper," She smiled and stopped humming.

"Yeah, I will, Mabel," He replied. "Why wouldn't I?" He laughed turning it into a cough.

She shrugged, but lay still on her brother as the couch took a sharp turn and went over a speed bump, causing a sudden jolt. Dipper looked out of the window, trees, trees and more trees were in sight; they were close. He kept looking and looking constantly until finally he saw the Welcome to Gravity falls sign looming down on him. Then there was soon a complete judder and shudder as the couch stopped suddenly, waking up sleepyhead Mabel without her brothers help of shaking and name calling.

When everyone started to get off, Dipper and Mabel got up, grabbed their luggage and made their way down the hot, sweaty couch for a breath of the wild instead of a sticky, sweat type smell lingering like mouldy cheese would. After emerging from the couch, the air felt cool against their skin and nice to taste the fresh scent of forest shrubs then a sweaty grease type smell. Then there was the rain, it poured down on them like waterfall gush, so as the couch pulled out they ran to the mystery shack, carrying their belongings with them.

Banging on the door, Dipper made sure to be loud and clear so grunkle Stan would hear him, since he always had the TV on all the way up. (this was due to his old man hearing). Fortunately, after a few minutes, an old man opened the door in his fine, black suit with that iconic brown tie. Grunkle Stan. He looked down on them and gave a lazy smile as the two twins pushed past him out of the cold rainy weather. It's supposed to be June, yet it's raining. Great.

"Oh if it isn't my two favourite li-I mean grown up niece and nephew," He chuckled, shutting the door and looking over at Dipper and Mabel.

"Grunkle Stan, we are your only niece and nephew!" Mable rolled her eyes playfully, giggling.

"Well that's a bloody good job, I hate children," He growled in annoyance, heading over to the coach.

"We are not children anymore, Stan," Dipper said firmly. "Me and Mabel are seventeen so we are nearly adults," He made Stan acknowledge the fact.

"Dipper, you're right, you are a man now," He said sarcastically. "I see you're starting to stubble," He told Dipper, sitting down on the coach.

Dipper smoothed his hand along his chin, and grunkle Stan was right. Hairs were starting to stubble again and it'd been at least a week since he had shaved it off so no wonder it was starting to show.

"Oh and by the way, Wendy your old sweetheart is still with her boyfriend, chicken arms," He laughed cruelly. "So there is no way you two will ever stand a chance," He remarked rudely, switching on the telly.

Dipper folded his arms whilst Mabel laughed. Already their uncle Stan was being typical uncle Stan and there was nothing they could do about it.

"Hey race to our bedroom, who gets to choose their bed first!" Mabel shouted towards her brother, grabbing her suitcase, running down the hall.

"Hey! Wait up sis," Dipper laughed, yanking his luggage off the floor and down the hall, running after his sister.

As he ran down the hall, he saw his sister already clambering up the stairs towards their room they stayed in every summer. He didn't give up, he ran and ran and ran swiftly and carefully up the stairs, finally making it outside the room. Sadly, there his sister was slumped upright on the top right corner bed, leaving Dipper to have no choice but to sleep in the top left most bed.

It was going to be different this summer, he could just feel the tension quivering up his spine. Mabel wasted no time faffing, she unpacked all her things untidily and threw them on the floor. Dipper on the other hand took pride in his things, sorting it all out neatly making sure everything was here and he didn't forget nothing. It was no surprise that Mabel and Dipper were the complete opposites when it came to the neat of things.

Mabel was messy and carefree, she didn't give two shits if her stuff was being tossed out then slowly arranged. However, Dipper was very cautious and liked to make sure everything was being handled with care. Mabel, was optimistic. No matter if things weren't going great, she'd always manage to make it seem less chaotic than it really was.

Dipper was a worry wort. He had to over think things in order to fully feel satisfied in complete them or do them. He carefully planned out things, over checking them, over looking them. He was a little more pessimistic. If a problem seemed dreadful or doomed, it was. If all was lost then he felt there was nothing life changing that could happen. Although, he was a softy for misadventure and solving mystery's, he cracked them all the time and was positive that he could crack anything in his way.

Now Dipper sat on his bed, looking over at Mabel. She had currently been packing away her things into her closet and drawers. Strangely, she had packed everything away, there was no mess anywhere to be seen. She was reading a magazine about Models and that made Dipper think. What would his sister look like in a skimpy Victoria's secret dress. All tight and revealing. Gazing in admiration, he pulled out a comic book.

It was going to be a long summer ,a summer he'd never forget...

Hey its the author, please review on your first impressions so I can decide whether to continue or not.