Upside-down

"welcome back, buttercup." Sans said as he was sitting on the couch. Frisk looked at him amused as she tilted her head. 

"I wasn't gone for that long, dummy." He chuckled. 

"yeah i know...but what you did was reckless--"

"And stupid...I know. You told me that the whole week." Frisk said smiling. She sat down next to him and Sans fidgeted. Should he ask her now...??

"hey frisk...i want to ask ya something...will you--" Suddenly the door burst open. 

"NGAHHH! WHERE IS SHE?!" Frisk opened her eyes as Undyne and Alphys entered the room with two winded Chara and Asriel. 

"She...made us....run...."Chara said wheezing. Asriel fell on the floor. Frisk laughed and Sans grumbled. The moment was ruined, no doubt. Papyrus then walked in followed by the human royals and Mettaton. 

"Oh darling you had us worried sick!" Mettaton said as he came and swept Frisk off the couch in a hug. She winced. 

"That...hurts...Metta..." She said as he was tightening his grip in his usual super strength robot type. Gaster then entered the room as well. 

"Are you ok, Frisk?" She smiled and nodded. 

"I'm perfectly fine, Dad-ster. But thank you." All the humans relaxed. 

"WELLLL~ We came here to stay so might as well have a sleep-over like we did the first night on the Surface!! Plus...the bus back is canceled thanks to Papyrus." Undyne said with a shrug. Papyrus gasped. 

"BUT UNDYNE YOU THREW A SPEAR IN THE BUS--" Undyne raised a finger to shush him. 

"AH- AH AH!! No need to apologize Papyrus! It's perfectly fine." Alphys chuckled and sat down next to Frisk. 

"H-How are y-you feeling??" Frisk smiled at the blonde girl. 

"The stitches hurt a bit...but it's nothing i haven't handled before." Alphys nodded. 

"I can b-buy you s-some cream when Undyne will a-ask to go get some snacks." Frisk giggled. 

"That would be lovely, Alph. Thank you!" Toriel came and set between Frisk and Sans. Now he gave up. He got up from the couch to make space for the, everyone hoped, would be future husband of Toriel's. Sans sat in the arm-chair. Frisk raised a brow. Shouldn't he take the opportunity to stay next to Toriel...?? Maybe she has been reading him wrong...Maybe he liked someone else. Maybe she had a chance! 

"My child, how did the accident even happen??" Sans and Papyrus stiffened. Frisk rubbed her neck awkwardly as she smiled. 

"I sacrificed myself for someone...I knew i would heal faster and would probably survive this..." Sans and Papyrus were shocked. She knew she could survive this?! Chara and Asriel shared a shocked looked as well. Asgore chuckled in his gruff voice. 

"Ah, Frisk...You always put others first, don't you?" Frisk nodded determinedly. 

"It's what i grew up to do and what i do best." Sans smiled. Such a sweet girl...And so it began. They watched movies, drank, played games and finally it was time to go to sleep. Sans and Frisk were the last ones awake. 

"sooo frisk...??" He said. He got a small tired mumble in return. That was enough. 

"what do you say about...being my partner for that formal dance...??"Snores. Sans blinked and looked at Frisk. She fell asleep. He sighed...Right...she was still recovering. He pulled her towards him and let her sleep on him. He closed his eyes and snorted. 

"monsters are so weird..."

"BUAHAHAHAH! YOU TRIED TO ASK HER AND SHE FELL ASLEEP ON YOU?! BRUHHH!" Chara said, howling with laughter. Asriel was snickering. Sans blushed and frowned at them. 

"fuck you...ugh. and i have practice today." Chara perked up. 

"Heyyy~ That could work in your favor. Invite her to watch!" Sans raised a brow. 

"huh?" He said, confused. Asriel gasped. 

"Oh yeaaahhhh. You could invite her to watch you in action, impress her AND THEN BOOM! You ask her and everything will be perfect!" He said, doing a chef's kiss. Chara snorted. 

"What he said." She backed Asriel up. Sans scratched his head in thought. 

"i don't know...maybe she'll say no? or maybe she's busy??" Chara scoffed. 

"First of all: Frisk isn't busy at all since she's still recovering so she has less work than usual. Second of all: Frisk refusing you? Only in my dreams." Sans opened his mouth and stopped. He frowned. 

"what do you mean in your dreams...?" Sans asked. Chara chuckled warily. 

"I'm in danger." She said, shrinking on her chair. That's when Papyrus came. 

"BROTHER! SOMEONE IS TRYING TO ASK MONSTER FRISK TO THE DANCE." Sans froze. 

"where?" He asked. Papyrus pointed towards a direction and everyone turned their heads. There she was, leaning away from a guy that was leaning on his hand against the wall in front of her. They all focused their magic to hear the conversation. 

"Hey there, cutie~ So. I'll make ya a once in a lifetime offer. How about you, me, formal dance?" Frisk looked him up and down. 

"And you are...?" She asked. The guy rolled his eyes. 

"I'm from the football team baby, come on!" Frisk scrunched her face up in distaste at the monster. He looked like a lion. 

"And you're asking me because...?" The guy scoffed. 

"A lion and gryphon? I call that a hella cool image." Frisk opened her eyes, giving the guy a disgusted look. 

"You disgust me. I will decline the offer, thank you." She turned around and caught her hand. 

"Wait! I can pay you--" Frisk started in disbelief and Sans felt anger spike up. What was she?! And object?! Fucking prick-- 

"That son of a--" Chara started but that's when it happened. Frisk calmly took his hand and looked at him. 

"Say that again??" She asked. Sans froze again. Was she...letting herself be bought...??

"Heh. I can pay you--" She twisted his hand. 

"One. I'm not an object." She twirled him and twisted his arm behind his back. 

"Two. I don't know what you think? I'm not that kind of girl." She grabbed his shoulder and they were pretty sure she dislocated it at the sound it made. The four that were listening in, shuddered. 

"Three. I don't know WHO YOU THINK YOU ARE but i would watch how you treat girls, you sick fuck." She lifted him and slammed him into the ground. Sans blushed. She could have easily oblivirated monster kind of pure brute force...Yet she chose to die multiple times AND free them after? Man- she was awesome. Frisk looked down on him and rolled her eyes. 

"What a prick." She started walking away. Papyrus gasped. 

"BROTHER! SHE DECLINED!" Sans chuckled. 

"Let's just hope she doesn't do the same to you~" Chara sang. Asriel frowned and smacked her over the head. 

"OW! AZZY!" Asriel scoffed. 

"If you'll scare him we'll never see tiny human-monster hybrids!" Asriel said. Sans spurted and choked. Papyrus gasped in excitement. 

"MY BROTHER AND MONSTER FRISK HAVING CHILDREN?? THE CUTENESS WOULD BE UNBERABLE!" Chara and the two boys laughed and Sans pulled his hood over his head. 

"i hate you all..." He teleported away, after Frisk. It was his chance. 

"hey~ frisky~" She turned around and grabbed his hand, twisting it behind his back. She gasped and let go. 

"I'm so so so sorry! I thought you were someone else!" Sans chuckled as he rubbed his wrists. 

"m fine, buttercup. no worries. soooo~ i was thinking...today i have practice and you seem pretty bored without all that work you used to have." Frisk chuckled. 

"I'd say happy! They used to give a shit tone of work! I got excused from two projects thanks to a life and death situation! I should almost die more often." Sans froze. 

"never. say. that. again." He said, grabbing her shoulders. She giggled, tilting her head, amused by his reaction. 

"Aww. Ok ok...So you were saying?" She said, opening her golden eyes. Sans blushed a bit. 

"if you umm...you want to come watch the practice...? than maybe we can grab some grub." Frisk lit up. 

"Really?! Yes!!" She said a bit too excited. Now it was Sans turn to look amused as her tail was wagging. Frisk coughed and looked away blushing. 

"I-I mean..ahem...yeah. Sound good." But her tail was still wagging. Sans snorted. She was adorable. 

"'aight. take care, sweetheart." Frisk smiled and waved as he teleported away. Her wings popped up and her face blushed red. This felt too close to a romcom. 

She was in the bleachers as they were playing and what Frisk found EXTREMELY funny? Was the group of thirsty girls waiting for all the boys. She was quite amused when they cheered and stuff. They cheered for both teams. Frisk however? Only picked the team in which Sans was. Also, the other team? Bitch- they were totally cheating AND were stupid. 

"NO NO NO- MORONS! My god...Losing the ball like that, Jesus." Frisk said, pinching the bridge of her nose as one of the guys on the other team lost the ball to Sans. She was happy for Sans' team but like...for real? Losing it like that? 

"PASS IT! HE'S FREE!" Frisk yelled. Sans didn't expect Frisk to actually know the game OR enjoy it when she invited her. This girl surely was full of secrets. He passed the ball to his teammate and he scored a touch down with it. Sans was surprised. Sans team started cheering for Frisk. She laughed and threw her fist up to say she's got them. They did the same. The girls further away from her scoffed. 

"Um, excuse me? Who do you think you are?" Frisk raised a brow. 

"Frisk...?" She asked confused. Another girl rolled her eyes. 

"The audacity! How dare you talk to our future boyfriends?! Especially to catch the human's attention." Frisk snorted and had to put a fist to her mouth not to laugh. 

"W-wait wait wait....You think he's impressed by you?" She asked, snickering. The girls looked at each other. 

"WEll DUHH! We put on make-up." Frisk looked at them unimpressed. She turned to the field. Sans was passing by the bleachers since they were doing laps. 

"SANS!" The girls said, getting closer to the edge. Frisk snorted. 

"Nice job, starlight." Sans heard her and came closer to the bleachers, propping himself using his elbows in front of her. He was panting a bit. 

"thanks, frisky." They smirked and fist-bumped. She saw how tired he looked and she laughed. 

"Here." She threw him a towel and some water. The towel hit him right in the face. He took it off and looked at her unimpressed. Frisk snorted. 

"i'll be right back. let me change and get my stuff, mk?" He said. Frisk smiled and nodded. So he teleported away. In the lockers, the boys were snickering and talking about something. 

"Yo! That chick that knows football? FINE AS HELLLL BRRROOOO!" Sans frowned. Were they talking about Frisk? That's when someone put a hand on his shoulder. 

"Bro! You know Frisk, right?" Sans raised a brow at him. 

"and?" They all smirked. 

"Number?/Instagram?/Snap?" They asked him at the same time. Sans took his stuff and frowned at them. 

"you don't even know her..." He said, shoving one of his shirts in his bag after he changed. They either scoffed, laughed or said nothing. 

"What's there to know with a body like that and brains as well?? Bro- if she's a weeb, even RON would bang her!" A guy said. 'Ron' shrugged and nodded. Sans started leaving, growling under his breath. Then he stopped in the door-way and turned back. The room got chiller and his eyes flared with a bright blue as a huge monster skull materialized behind him. 

"touch her? and i will blast all of you." They all backed away and shrunk in fear. Sans scoffed and dismissed the blaster. He turned around and waved, using two fingers. 

"see ya." And teleported to see Frisk scrolling through her phone with girls yelling at her around her. 

"frisk. uhh-....are they bothering you?" Sans asked, pointing at the girls. They immediately gasped or melted. Frisk looked up and smiled. 

"Nah. I didn't listen to what they said. Let's go!" She said, skipping towards him. He laughed and put an arm around her shoulder. Frisk waved and they teleported away. The girls were left quiet...and jealous.