"You should come."

A party was, potentially, a very strategic event. For one thing, humans, and particularly teenagers, held the event in high regards. It was something Bill didn't quite understand especially because most parties depicted on TV were thrown for no apparent reason. Regardless, in said social event, drama often took place. To his understanding, it was common place to ruin one's foes by embarrassing them publicly or getting them drunk enough to do something stupidly humiliating. It was the perfect plan for Bill to start making Shooting Star and Pine Tree's high school life absolute Hell. However, he needed both twins to attend the event and Pine Tree seemed hesitant, on the verge of declining.

"You should come." He said.

The Monster, Shooting Star, and Pine Tree's eyes fell upon him. Shooting Star flashed her brother a grin that seemed to have a sub-textual meaning Bill didn't understand. Pine Tree's cheeks reddened slightly but the colourful tint disappeared as soon as he shook his head.

"Come on, Dip!" Shooting Star encouraged, "It'll be fun!"

"It's our last year!" The Monster added, "You've got to let go and be wild!"

Pine Tree's mouth snapped shut and he frowned. He sighed when he looked at Bill, "Fine." He said, defeated.

"Awesome!" Shooting Star cheered.

Bill **** himself to stay as impassive as possible, though he was very much pleased with the brunet's decision.

The rest of the week passed fairly quickly. Bill found himself spending a lot of time with the twins and their friends so as to gain their trust. It was much easier to destroy your enemy or to take advantage of someone by showing them kindness and warmth rather than being cruel and insane, or atleast that what he told himself.
By the time the party rolled around, he had become 'friends' with both Pine Tree and Shooting Star – though he was admittedly much 'closer' to Pine Tree. The two had the exact same schedule and so simply spent more time together.

The day of the party was now among them. Bill searched through Timothy's clothes for something to wear. He had binged a lot of TV series and skipped straight to the sections where the teenage protagonists went to parties. He absolutely needed to fit in. This party was both an opportunity for **** as it was an opportunity to elevate himself in the social hierarchy of the school. He reckoned he had lost some serious points by associating himself with Pine Tree. He hadn't suffered too many consequences over it just yet, but that might have been because Timothy was widely accepted as someone attractive.

Bill would never understand why.

Regardless, the more he looked through Timothy's wardrobe, the more he found himself frustrated. It wasn't that the rich kid had nothing to wear more than it was that Bill didn't know what he should wear. He had watched a plethora of very educational shows, that was a given, but he didn't quite understand what consisted a 'fashionable' outfit. The last thing he wanted was to show up looking like a clown. He would surely lose many social points if he did. Bill had thus considered pulling on something generic, but he didn't exactly know what generic was. Had he bothered to purchase himself a cellphone he could have gotten Shooting Star or Blondie's numbers. Girls were apparently very talented in that department.

Shooting Star… he mused.

Shooting Star typically wore very colourful pieces of clothes. She always managed to catch everyone's attention and Bill begrudgingly had to admit she was damn beautiful. Perhaps he should attempt to emanate her style in his choice of garb? It seemed like the best course of action to take. He shuffled through Timothy's clothes and found a large yellow sweater. Shooting Star wore sweaters. Bill took off his shirt and slipped it on. The inside was very soft and it kept him warm. He would definitely wear it more often. Lastly, he needed pants. Unfortunately, the colour of Timothy's pants were generally dark. If they weren't black then they were dark blue. He opted for a pair of black pants. When he looked himself over in a mirror he was satisfied but saddened. The colours he wore matched those of his triangular form.

Gosh, he missed being an omnipotent triangle.

With a heavy sigh, he pulled away and looked at the clock. It was almost ten and the party had started an hour ago. Bill supposed he was being 'fashionably late' – something that was also very important to do when attending a party. Timothy's body hadn't been fed yet so before leaving, he opted to munch of the least disgusting snack he had discovered: rice cakes. They almost tasted like nothing – just the way Bill liked his food. He ate three of them before judging the body had been fed enough. Then he called one of Timothy's chauffeurs and went to the Northwest mansion.

The place was booming with music that played so loudly Bill could hear it from the gate's entrance. Flashing lights of all colours shone through the windows and changed in time to the beat of the music. A trio of kids sat just by the front door with a cigarette the smelled rather strange and passed it amongst each other, giggling all the while. Bill grimaced at them before pushing past the front doors. The demon was taken aback by the burst of music that hit him. It was far too loud and he struggled to hear himself think.

A thick crowd of kids swarmed the inside of the house, all of whom held onto red plastic cups. Most of them stood in groups and talked whereas the rest danced and grinded on one another. Bill watched them curiously for a moment. If he remembered correctly, said mating dance typically led to a coupling session in either the nearest bedroom or bathroom. The process in question was rather sweaty and disgusting and Bill had the suspicion if reproduction wasn't a human primal need, none of them would engage in the activity. It seemed to be painful for them too – what with all the moaning and whimpering.
Even though he got a sudden urge to try it for himself, just to make sure.

Bill managed to tear his gaze away and continued his venture through the crowded household. He didn't recognize most of the people he saw – in fact, he was fairly certain a lot of them didn't actually attend Gravity Falls High. On that note, he also struggled to find his targets. Pine Tree and Shooting Star were nowhere to be found. He couldn't even find Blondie. Rather than continue wandering aimlessly, Bill decided to head towards the kitchen. Apparently it was a place one needed to visit at some point to pick up an alcoholic beverage. It was customary for teenagers to consume liquor and get drunk, though Bill was fairly certain it wouldn't have any effect on him what with being a demon and all.

Regardless, he still went to the kitchen and there he found one of Shootings Star sweaters, laying discarded on the floor. Blondie was not standing far from it. He also found Shooting Star and consequently understood what the Monster had meant when she had said Blondie was rather 'affectionate' when intoxicated.

She had Shooting Star pressed against the counter on which two dozen bottles of **** sat, and kissed her sloppily. Shooting Star seemed to be enjoying herself too or so he gathered from how eagerly her hands was moving around under Blondie's skirt, feeling up her ass.
Her eager moment caused blondie skirt to be lifted up, just enough for Bill to get a good glimp of the underside of Blondie tight ass, with a thin line of purple inbetween her card swipe.

Blondie moaned loudly into Shooting Star, their lips still locked. Shooting Star- he noted was shirtless, with the only cover being her bra, Blondie seems to take full advance, by squeezing her barely covered breast.

Bill found himself unable to look away, while his pants feelt unbearable tight.

After what seemed like forever, the two finally broke apart with a gasp to breathe. Then they noticed Bill.

"Bill!" Blondie shouted and wore a dumb grin on her face. She approached him while throwing her arms in the air and giggling, "I thought you bailed! Come 'ere!"

He didn't really know what to do and so opted to stay still. Blondie wrapped her arms around him and kissed him roughly. She pressed their lips together a bit too harshly and Bill went rigid. He had learned there was such a thing as being a 'bad kisser' which was very frowned upon. Seeing as he didn't know how to kiss, he decided doing nothing was the best solution.
Even though her warm lips against his felt extremely nice.

"Hey!" Shooting Star protested when Blondie finally pulled away. Her words were very slurred and she struggled to stand upright properly, "I thought we were kissing!"

"Oh! We totally should!" Blondie laughed and pranced back to Shooting Star.

"Wait!" Shooting Star suddenly exclaimed, shoving her hands in front of her to keep Blondie from coming closer, "I want to kiss Bill too!"

Bill flinched. He wasn't sure he was up for it if it was going to be as uncomfortable as it had been when Blondie had kissed him. Yet his eyes shouldn't stop wandering down Shooting Star's curved shape, from her flower covered bra, down to her flat stomach.
It would perhaps not be entirely out of the questein to get a little closer to that body of hers. It should be a good learning experience atleast.
And then try with Blondie afterward, see if repeated exposure would help. Or so Bill told himself.

"Oh, do it!" Blondie encouraged and shoved her hand in her pocket to fish out her phone, "I'll take pictures! It'll be great!"

"But I shouldn't!" Shooting Star whined and Bill contemplated fleeing, "Dipper has, like, the gayest crush on him! He would be so mad if I did!"

"Doesn't he have the gayest crush on all of his man-crushes?"

"I guess..."

"Then do it!"

"I shouldn't!" Shooting Star exclaimed, throwing her hands up overdramatically.

"Uhh…" Bill uttered, he wasn't sure what to do.