'What about formalwear? No, too predictable. A fitness theme? No, too eighties. Urgh, I don't know…'

She patted the rear end of her pencil onto the blank page in front of her, desperately trying to find an inspiration. Usually, she was chock-full of ideas, but it seemed like today was different. Today, Mabel Pines was having a serious case of art block.

She dropped her pencil and slammed her head against the table, groaning loudly in exasperation. Why was she doing this now? It was a Friday afternoon and she was all done with classes for the day. She wanted to start enjoying her weekend, but her partner wanted to get an early start on their Creative Design project. Why did she have to say yes to that? She had had an exhausting week and she just wanted to go back to her room, lock herself in there and sleep till Monday. Why did she ever agree to spend the rest of her Friday working in the library?

"Looks someone could really use a nice hot cup of Loco Cocoa."

She sluggishly lifted her head just enough to see the person in front of her, who smiled widely at her as he handed her a large cup of hot chocolate with whipped cream, chocolate sprinkles and a toasted marshmallow on top. He was a boy her age with bleached hair, short and styled into a Pompadour, wearing a black turtleneck with an open teal vest that matched his teal-rimmed glasses and a pair of white jeans.

Mabel gave him a small smile as she sat up straight, now remembering why she had agreed to his idea in the first place. He had been her closest friend and confident since she started her classes at the end of summer. They had a lot of things in common and shared the same ideals about fashion. He also had a unique style when it came to clothes, and, as Mabel had a bunch of different sweaters for each occasion, he had a different pair of glasses for each day, all with different colors and none of them even remotely alike. He was one of the sweetest guys she had ever met, and Mabel felt like she could tell him anything. He would always have her back.

"You know me too well, Raphi." She sighed as she accepted the hot drink from her project partner, feeling it instantly warming up her hands.

"That I do, miss Pines." He said as he took a seat next to her, holding his own drink in his left hand. "I have to admit, it was hard to order that calorie bomb without getting one for myself, but I was able to resist and just got a cup of vanilla tea. I have to watch my figure, after all."

"What figure? You're skinny as a stick! If anything, you could really use some meat on those bones."

"Bite your tongue!" he exclaimed, making her giggle from looking so outraged. "So, have you figured what we should make for our Creative Design project?"

"Nope, I'm stumped." She sighed as she took the marshmallow from her drink and threw it into her mouth. "I don't know what's wrong with me today, I'm usually so inspired."

"I know what's wrong. Someone's been working too hard all week and now she's burned out." Raphi stated as he stirred his tea. "I think you should take a break this weekend. Relax, have some fun or something."

"Well, I was planning on calling Dipper and asking if he wanted to hang out."

"Yeah, you do that." He set the stirrer down and inched closer to the brunette, grinning deviously at her. "By the way, how is that cute twin brother of yours?"

"Still straight and taken, I'm afraid." She chuckled, licking the whipped cream from the edges of her cup.

"Oh, poo. Why are all the good ones taken?" he slumped on his chair and crossed his arms over his chest with a pout. "What's that Serenity Southeast got that I don't, anyway?"

"Her name's Pacifica Northwest, and I don't think it's about what you don't have, but rather about what you do have, if you know what I mean."

"Whatever, it's his loss." He scoffed as he picked up his drink and blew on it. "Speaking of boyfriends and such, when are you going to finally introduce me to yours? You're always going on about how great and handsome he is. I'm dying to meet him!"

"That's a bit more complicated." She replied, gripping the paper cup firmly in her hands as she tried to come up with a plausible excuse. "He's… not from around here."

"You mean he's foreign?" he gasped. "How exotic! Now I really have to meet him!"

"Well, he's not here right now, so that won't be possible."

"In that case, you better warn me as soon as he comes to visit." He slowly sipped his tea, releasing a satisfied sigh afterwards. "Honestly, you talk about the guy so much it's like I've known him all my life. You've told me his name, where and how you've met and described how he looks in detail. I have to admit, you make him sound like the hottest guy on the planet."

"He kind of his, but I wouldn't stroke his ego that much if I were you. It'll go straight to his head."

"Well, it's not like he can hear me, right?"

"I wouldn't be so sure…" she muttered under her breath, unable to repress a loud yawn.

"You look exhausted. Tell you what, why don't I start the project and show you my ideas tomorrow?" he suggested as he pulled the blank page she had been trying to use towards him. "I can tell you could really use some rest."

"You sure you don't mind?" she asked, sleepily rubbing her right eye.

"Positive. Besides, I need all the practice I can get if I ever want the name Raphi Sullivan to make it as a famous line of clothing." He stated, sweeping his arm in the air as he said his name.

"If you say so." Mabel giggled as she stood up, throwing her backpack over her shoulder and picking up her drink. "Thanks, Raphi."

"Not a problem. But you better make it up to me, you hear?"

"I will, I promise!"

She waved goodbye to her friend and exited the library, sipping her hot cocoa as she walked through the school. The hallways were teeming with other students, chatting away and clearly excited about the weekend. She was able to overhear some of them planning parties for that night. Normally she would've gone where they were going without even thinking twice, but today she actually felt too tired to party. She must've been more worn-out than she thought.

She pushed passed the door of the main building and found herself on the campus grounds. She inhaled deeply, taking in the scent of the crisp autumn breeze around her. The air was getting colder by the day and the trees were almost completely bare. It was her first fall in college and she thought the scenery was absolutely breathtaking.

Feeling the leaves crunching beneath her feet as she walked, she made her way towards the dormitory. As soon as she entered the building she saw a bunch of other girls gathered around discussing another party. She quickly zipped through them before they had a chance to invite her and fished around her backpack for her keys. Finally she reached her room, the last one on the bottom floor. She swiftly unlocked the door and swung it open, rapidly stepping inside and locking herself in.

After throwing her backpack into a corner, she jumped onto her bed and sighed deeply as her muscles relaxed against her soft comforter. She could feel all the stress and anxiety she had built up just melting away as she closed her eyes and started to doze off.

"Rough week, uh?"

Her eyes immediately snapped open to find herself staring into her boyfriend's upside down face. Apparently he was standing on the ceiling, his hands in his pockets and a sly grin on his face.

"You have no idea." Mabel sighed, smiling up at the blond.

"Oh, but I do!" he did a flip and landed on the floor next to her bed. "I've been watching you all this time. Even when you were talking to your friend earlier."

"You… were?"

"Do you really think I'm the hottest guy on the planet?" he pressed his right hand against his cheek and batted his eyelashes in a cutesy way.

"Of course I do!" she replied as she propped herself up on her elbows. "You know I do! I tell you that every time."

"You're too sweet." He commented as he lied down next to her, wrapping his arms around her waist.

"Yup, that's my middle name. Mabel Sweet Pines."

"And apparently 'cheesy', too."

"You know you love my cheesiness." She said, poking his nose. "And I know it too!"

"Guilty as charged." He purred, gently pressing his forehead against hers. "I can't help that you're irresistible."

"Well, you're not so bad yourself, mister."

He took hold of her chin with his thumb and forefinger and pulled her head up, pressing her lips against his. Mabel kissed back and threw her arms around his neck to pull him closer. Bill pulled one arm up to snap his fingers, a record player appearing on Mabel's desk and dropping its needle onto the record. Mabel instantly opened her eyes when she realized Marvin Gaye's 'Let's Get It On' started playing in the background.

"What is that?" she asked confusedly after pulling away.

"Just a little mood music." He replied as he ran his fingers up her arm.

"Are you planning something?" Mabel raised a brow at the demon, unable to keep herself from smiling at his naughty ways.

"Maaaayyybe…" he smirked and inched closer, touching her nose with his.

"Show me." She whispered in a rather sultry tone.

Bill's grin widened. He was amazed how sexy the otherwise innocent girl could be. She must've been learning from him during the four months they had been dating.

He smashed his lips against the brunette's once more and slid his hands under her pale-blue sweater, running them up her back. Mabel eagerly kissed back as she tangled her fingers in his blond locks. He slipped his tongue into her mouth, massaging her own tongue with his. Mabel moaned against his lips, her cheeks starting to flush as Bill slowly started to pull up the hem of her sweater.

It didn't take too long until their clothes were scattered around the floor. The two lovers had pulled the covers over themselves, Bill on top of Mabel as he continued to kiss her passionately. He pulled away and panted as he looked at her with a wide smile across his face. She looked away embarrassedly, her cheeks beat red. Bill bit his lip, his heart skipping a beat with how adorably beautiful she looked. The naked demon closed his eyes and slowly leaned down to kiss her again as his thumbs hooked the hem of her underpants, the only article of clothing left on her, when suddenly…

Nice to meet you!

My name is Dipper Pines

P-P-Pines, Pines, Pines…

Nice to meet you!

P-P-Pines, Pines, Pines…

They opened their eyes at the same time and glanced at Mabel's nightstand, where her phone was vibrating and playing the song that had ruined the mood, a picture of Dipper on the screen. Bill gritted his teeth and gripped the sheets angrily, his eye twitching slightly.

"Friggin'… DAMMIT!" he shouted at the top of his lungs.

He reached for the brunette's pink bedazzled smartphone and slid his finger across the screen to answer the call, clearing his throat to calm himself before taking the device up to his ear.

"Shooting Star can't come to the phone right now…" he spoke calmly, pulling the phone in front of his face as his angry expression returned. "…because she's about to be DEFLOWERED!"

He tossed the phone towards the opposite end of the room without even bothering to end the call and huffed in irritation.

"Bill! That was Dipper!" Mabel complained, eyeing her phone across the room. "I can't believe you just told him that! What's he going to think? He might – "

The blond interrupted her by quickly pressing his lips to hers, to which she quickly subdued as he yanked away her underwear.

Meanwhile Dipper was still trying to process what he had just heard. He sat at his desk in his room at West Coast Tech, staring confusedly at his phone. He hadn't hung up yet in hopes that Mabel would pick up and explain what had just happened and what Bill was talking about, but all he heard was rustling and what sounded like panting coming from the other side.

"I've been wanting to get my hands on you for a long time." He heard Bill say.

That's when it hit him. His eyes widened and his jaw dropped when he finally understood what the demon had meant.

Oh no.

"Especially on these lovely 'tracts of land' you've got here."

"Oh, stop it, you…" Dipper heard his sister giggle, his face involuntarily flushing deeply.

"So nice and soft…"

"Hey, we're you going?"

"Downstairs. I hope you don't mind."

"I don't, but – WHOA!"

"Hmm, you like that?"

"Holy crap, YES!"

At this point Dipper dropped his phone and backed away, like it had some sort of contagious disease. He kept glaring at it in disbelief as pants and moans enacted from the other end.

"Can I maybe… try something on you?"

Dipper's eyes widened so much he felt they would pop out of his head any moment. Was that really Mabel talking? His sweet happy-go-lucky twin sister?

"Sure, what did you have in mind?"

"Just lie down."

"OK, now what?"

"Close your eyes. I mean, eye."

"'K, it's closed. What exactly are you planning to do–OOOOOOOOOOOH!"

"I thought you'd enjoy that."

"Jiminy Crickets, that feels GOOD!"

"Mmm… you taste better than Smile Dip."

"You keep talking like that and I'll explode!"

"I'm pretty sure that's what I'm aiming for."

"OK, stop. It's time for the main course."

The sound of someone being toppled over and pushed against the mattress could be heard from the other side, and Dipper finally realized what was doing. Why was he still listening to that?!

"Ready?"

"As ready as I'll ever be."

The next thing the brunet heard was the demon grunting and Mabel muffling a scream.

"You OK?"

"Yeah… just give me a minute."

"Anything for you, dearest."

He heard Mabel pant a few times and sniffle. Still frozen in shock, Dipper tried with all his might to force his body to move and end that blasted call.

"OK, I think I'm good."

"Shall we begin, then?"

"Yes, please."

After that all he heard was a series of grunts and moans from both Bill and Mabel, which seemed to increase in frequency by the second.

That was the last straw. Dipper launched himself in the direction of his phone in an attempt to grab hold of it and end the call, but his hands were shaking so much he couldn't get a grip on the device. It was like it was covered in butter.

"B-Bill… Bill, I'm close!"

"Me… me too!"

Dipper finally managed to grab his phone as their moaning got louder.

"Mm… Mm… Mm…."

"Ah… AH… AAAH BIIIIILL!"

"Mmmm... MAAABEEEEL!"

The brunet lifted himself and tried desperately to hit the 'End Call' button, but the nerves were clearly affecting his aim. He hit the screen several times as he heard the couple on the other end panting in exhaustion.

"Oh, Bill… You said my name…"

"I… I guess I did…"

"That was amazing… Can we do it more often?"

"You bet we can!"

Dipper finally ended the call and released a deep sigh, sitting back at his desk. Although that was over, he couldn't help but feel that a small part of him had died. He knew that Mabel and Bill had to consummate their relationship sooner or later, but he sure as HELL never wanted to hear it!

He placed his phone on his desk and dropped his head onto its wooden surface. He was never going to get those sounds out of his head. And he was sure he wouldn't be able to fall asleep tonight.

AUTHOR'S NOTE (PLEASE READ)

Oh God, I always feel so violated after writing stuff like this...

Hello again, fellow Gravity Falls fans, and welcome to my new story! This is the sequel to "Catching a Shooting Star" and, well… it's off to a great start, isn't it? -_-; Well, to those of you who think you will still enjoy this, and those who have guessed where it's going, I hope you enjoy it.

And now for some clarifications:

1- The second half of this chapter was based on a Wreck-It Ralph comic I once read, in which Turbo and this girl's OC were about to… "do the dance with no pants", when Felix called her. Turbo answered the call, threw the phone away without hanging up, and Felix had to hear them "get busy". I can't find it anymore, 'cause I think the artist deleted it, but if any of you know what I'm talking about please tell me.

2- Before anyone starts throwing reviews about how I'm stereotyping homosexuals, I'll have you know that I made Raphi to be like a friend I had in High School, and was actually like that.

That said, stay tuned for the next chapter! I'm off to bleach my eyes and delete this text from my computer.