i wanted to write undertale bc i love sans and my friend gave me a prompt that doesnt even apply yet.

There isn't really any discernible point at which you became best friends with two skeleton brothers. It just happened, and you'd always wonder what choices you made to lead you to them. The friendship began with just casual chatting whenever you ran into each other around town, and ended with you at their house every night, eating mediocre (to be generous) spaghetti and watching bad movies on their change-filled couch. It was a life that you'd never expected to lead, and you had absolutely no qualms.

Papyrus was a good friend. He called and texted you fairly often and was always available to hang out. Whenever you came over he'd cook, and while his food was rarely edible the sentiment was still touching. His excitement was endearing, and while his constant screaming was startling at first, you were almost completely used to it now.

Sans was almost the opposite. He was calmer and somehow more collected, though his weird ketchup love and joking nature made him approachable and strangely charismatic. He was someone you could joke with about Papyrus, and you went out for dinner together often because of his brother's cooking misadventures. The two of you got along well, and you'd felt a connection though you couldn't say exactly what it was.

Your friendship with them was easy and comfortable, and there had never been any doubts about how much you cared about them nor any sudden developments and complicated feelings. At least, there hadn't been until one night.

Your turmoil began when the three of you decided to rewatch Con Air. Papyrus was the only one who hadn't seen the movie, and jumped at the opportunity once you revealed that you owned the dvd and told him that it was the best bad movie you'd ever seen. Around the beginning of the night Papyrus had been making popcorn for everyone as you and Sans fought for the remote and made Nicholas Cage impressions, quoting the iconic lines.

Sans grabbed for the remote in your hand, and you shook your head dramatically, holding it out of his reach. "Sorry boss, but there's only two men I trust. One of them's me. The other's not you."

He closed his eyes and shook his head at your delivery of the quote, and Papyrus returned, flopping on the couch between you and Sans. He lifted the bowl of popcorn above his head with a triumphant grin. "PAPYRUS THE GREAT HAS acquired THE SNACK!"

"Pap, just start the movie."

The opening scene began, and you reached into the bowl for popcorn without looking. You popped a piece in your mouth before choking immediately. Is this burned?

Sans and Papyrus turn, looking at you cough for air. Sans looks vaguely concerned while Papyrus's eyes are wide with worry.

"Human! Are you alright?" His boney fingers grip the bowl with so much force that you just can't help but wonder. You really don't understand how it doesn't slip into the air with the lack of grip. Unless skeleton fingers somehow can grip things? What a mystery.

You cough a little more before waving your hand. "No, I'm-I'm good. Just, uh, popcorn is a little…burned."

You flinch into the air as Papyrus comically throws his arms in the air with an upset yell. "What a…what a boner!"

Your throat is sore and your mouth tastes of ash, but you still laugh immediately. Sans glances at you, and grins at your mirth. You try to stop laughing, but all you can hear in your mind is Papyrus yelling "boner" in the most agitated way ever.

Sans is quiet as he moves next to you, though his grin is as big as usual. "Sorry my brother's such a…bonehead."

You snort at the pun as your hysteria dies down, and he pats your back lightly. "Hey, Sans," you start. He looks at you expectantly and you can't stop the mischievous grin that makes its way onto your face. "This sure seems like it's going tibia fun night."

Your breath catches as his grin widens to the biggest you've ever seen and he gives you a look so affectionate you find yourself wondering why you aren't swooning into his arms at this very second. Time seems to stop and you're acutely aware of your breathing and the beats that your heart is skipping.

You're brought out of your strange trance when you hear him repeating your name. You shake your head to clear your thoughts and put on a smile as he jokes about you spacing out worse than he does considering he literally has no brain.

The rest of the night passes with Papyrus constantly pausing the movie to ask if you're okay, and if his popcorn did something to your human body because wow your face is as red as the sauce he uses to cook his amazingly delicious spaghetti. All you can do it wave at him and reassure him that you'll live regardless of how terrifyingly burnt the popcorn was. You only look at Sans when he addresses you, and after a while he starts giving you slightly confused looks due to your rushed replies. On one hand you're concerned about his reaction to your reaction to him, and on the other you're just wondering how these two have such varying expressions when they are literally made of bone.

The movie ends and you rush home almost immediately, yet again reassuring Papyrus that you'll be fine and giving an awkward wave and smile to Sans, who returns the wave and smile but with an new emotion that you've never seen and can't exactly read. The walk home is pleasant though cold, but you can't complain about the cold seeing as it was your decision to even live in Snowdin.

As you get inside and close your door, you shake off snow and shrug off your thick winter wear, making your way into the kitchen to grab a glass of water before you pass out on the cough. You're exhausted, and you don't even know why. Maybe it was all that thinking you did during the movie. All the conflicting emotions threw you off so bad you almost didn't cry at the ending of Con Air, and you always cry. You lie down in bed, thinking of everything that happened over the course of the day, though you only really think about Sans' grin as you made that bone joke.

You haven't felt like this about anyone in years, much less a skeleton. What did you do in your life to lead you to feel this way? Your hands fly to your face and you scream into your palms at the acceptance that oh my God you want to bone your skeleton best friend. You can't help but dryly laugh as you think about how Sans would feel about your choice of words, and you fall asleep thinking about his grin and how you've really made a boner this time.

tfw ur skeleton brother doesnt understand the meaning of boner as its used in modern society