A bit of a switch
IT WAS CHAOS! They were all screaming for Gaster to put the thing down BUT NO! he was still mixing it. Suddenly, Naptsablook made a weird face.
"SHIT! NAPSTABLOOK IS GOING TO SNEEZE!" Undyne said but it was too late. The loud noise made Gaster drop the bottle. Gas started spreading and they all blacked out. And more chaos next. Because as they woke up-
"ALPH YOU LOOK LIKE ME!" Undyne yelled. Frisk looked at her hands and then down to notice.
"OH. MY. GOD. I'M IN SANS BODY." Sans cheered.
"I'M IN FRISKS BODY! OHHHH YEAHHHH!!" Toriel screamed....But it was actually Asgore in Toriel's body.
"I SHOULDN'T BE IN THIS BODY! I CAN FEEL- AHHHH! THIS IS A VIOLATION OF INTIMACY!" Asgore sighed...No Toriel- FUCK!
"Asgore calm down. You're in my body. You didn't touch me so calm down." Chara howled with laughter. She was in Asriel's body.
"NO WAYYY! IS THIS WHAT YOUR FACE AND BODY FEEL LIKE?! DAMN!" Asriel was hovering upside-down in Chara's body.
"HOW DO I GET DOWNNNN!!" Mettaton (in Napstablook's body) gasped dramatically.
"OH MY GOD! BLOOKY! YOU FEEL SO SAD!" Napstablook (in his cousins body) sighed.
"...i know...." Luka, who was in Louis' body squealed.
"I'M FUCKING RIPPED! DUDE! LOUIS! YOU EAT BRICKS OR SOMETHING?!" Luka said as he flexed. Louis snorted.
"You're a noddle." Sans blinked in surprise.
"frisk you have a six pack??" He asked as he looked down and was about to lift her shirt. She pulled the shirt down.
"DON'T DO THAT YOU DUMBASS!" She said, frowning.
"I'M ARMLESS!!" Gorgette screamed and Mk was running around.
"I HAVE SNAKES IN MY EYES! AHHHHH!!" Gaster whined.
"I'M A KID AGAIN!!" Papyrus gasped.
"I'M AN ADULT!! FATHER! YOU ARE SO TALL!!" Gaster groaned. Frisk looked at Sans.
"Turn around for me a bit. I want to get a view of me from the back. The mirror can't reach that place." Sans snorted and turned around. She tapped her fingers that were now phalanges on her chin.
"Interesting." She said. Sans made her turn around as well.
"man i'm hot~" He said. Frisk spurted and started laughing. She then frowned.
"You made the gap in height bigger. I'm disappointed." She said. Sans looked up.
"huh. so this is how you feel when i'm taller." That's when Luka squealed again.
"IF YOU CONCENTRATE YOU CAN MAKE THE OTHER PERSON FEEL WHAT YOU'RE DOING! I JUST STROKED-" Frisk put her hands up.
"NO THANKS LUKA. WE DON'T WANT TO KNOW!" Louis was curled up in a ball.
"I just felt him stroking....LUKA GET OUT OF MY BODY!" Louis said, frowning. Luka laughed.
"HELL NO!" And the chaos started.
"Guess we're keeping Luka and Louis over at our house until this is over." Gaster said. Papyrus was carrying him. Frisk and Sans were snickering at that. Louis sat down on the couch. Frisk and Sans both sat down as well.
"This will be nuisance." Frisk said. Sans let his head fall back.
"no kidding....can't you just get out of my body using our soul bond?" Sans asked. Frisk blinked.
"Dunno..." Gaster frowned as he was adjusting the goggles on his head. Sans frowned.
"do you always want alcohol...??" Sans asked confused. Frisk crossed her arms.
"Do you always need ketchup."
"OH MY GOD BEING THE BIG SPOON IS SO COOL!" Luka said. Louis pouted and crossed his arms.
"I need this to be over NOW! My bottom is being ruined! LUKAAAAAA!" Sans and Frisk gave an unimpressed look and scooched away from them.
"I FEEL LIKE I KNOW A LOT MORE ABOUT EVERYTHING NOW...WAIT A SECOND...THE COFFEE TABLE WAS ONLY 15 DOLLARS?! DADDDDD! YOU SAID IT WAS ANCIENT!" Gaster scoffed.
"Ancient looking in a thrift shop....NOW! YOU TWO ON THE COUCH! DO THIS IN SANS ROOM! he barely uses it anyways." Luka picked up Louis and Louis whimpered.
"I want back my bodyyyyy..." Luka patted him on the head and they entered Sans room.
"hope they'll clean the sheets if they do anything." Sans said, snickering. Frisk started snickering as well.
"YOU TWO ARE AWFUL!" Gaster said as he started walking after Papyrus in the kitchen who wanted to try to cook.
Sans and Frisk were looking at each other weirdly.
"This is kind of weird...Also, i should get a haircut." She said as she ran her hands through the hair. Sans shuddered.
"so THIS is how it feels like when i run my fingers through your hair. not bad." Frisk snorted.
"Now comes my question...Are you really unable to do a body roll." She got up and did one. Sans spurted.
"how?! the spine didn't snap?!" Frisk face-palmed.
"You're a skeleton monster dumbass. YOU EVEN HAVE A DICK! THE HELL?!" Sans looked away, whistling. Frisk groaned.
"Also...It's so weird to not feel any heat..." She said. Sans fanned himself.
"i feel hot and sweaty." She snorted.
"Happens." Sans then frowned.
"also...why do i feel wet down there...?" Frisk blinked in surprise and she realized she was on the corner of her bed.
"DID YOU JUST GET MY BODY WET?!" She asked in disbelief. Sans blinked.
"so THAT'S how it feels like...? weird..." He looked down at her thighs and-
"EYES UP HERE!" Sans smirked.
"can i take a showerrrrr~?" Frisk spurted. She flushed without wanting to.
"bruh i look like a headlight when i blush. damn." Frisk inhaled and exhaled with her hands clasped in front of where her nose should have been.
"Boy. DO YOU HEAR YOURSELF?!" Sans shrugged.
"you shower me, i shower you." Frisk narrowed her eyes at him.
"Why....??"
"BECAUSE YOUR BODY IS SWEATY! you didn't shower yesterday!" Frisk sighed.
"No." He pouted.
"pleaseeeeee??" Frisk crossed her arms.
"You just want to see me naked."
"that too but- YOU'RE REALLLLYYYY SWEATYYY" Frisk shook her head. That's when Sans remembered...If he concentrated he could make Frisk agree ifff- He sat even more on the corner and concentrated. Now she could feel it.
"Stop it, Sans!" He smirked and moved around, Frisk heated up. She growled.
"STOP IT!" Frisk said. Sans snickered.
"Bro don't make me put his hand in your freaking trousers, got it?" Sans stopped and crossed his arms.
"oh pleaseeee. you can't possibly know more than me-" Frisk raised a brow and crossed her arms as well. Sans stopped and frowned.
"ok...maybe you do...fine. no showers. buttttt can i go to the bathroom?" Frisk gave him an unimpressed look.
"i just really need to pee dude..." Frisk snorted and gestured for the bathroom. She stayed in the door. She won't leave him alone with her body. God knows what he'll do.
"you know? your stomach really hurts." Sans said as they were sitting on the couch. Luka spurted as he was coming down with Louis.
"HER STOMACH HURTS?! Frisk!" Frisk froze.
"Oh. My. God. You get off the couch right now and go to the bathroom." Sans tilted his head.
"why-? owwwww....it hurts..." Frisk sighed.
"Now you can experience periods--" Suddenly the door flew open. Papyrus ran in with multiple blueprints, Gaster barking commands at him. The duo passed the four teenagers staring at them in confusion.
"Uhhhh...Is this normal?" Luka asked. Frisk and Sans looked at each other then at the couple.
"Usually it's the other way around." They both said, shrugging. Frisk then picked up Sans and brought him to the bathroom upstairs.
"Strip." She said as she put on a warm shower.
"ew. this is your body." Frisk face-palmed at the joke.
"Dumbass, i'm doing you a favor." Sans smirked.
"so i can see you naked?!" Frisk groaned.
"NO! JUST GET IN!" He put his hands up.
"ok ok ok...sheesh...seems the moods affect you not me." Frisk rolled her eyes and Sans stripped and got in the shower. Frisk went to pick from her wardrobe some warm clothes that she put on the heater so they would be warm. She waited in the bathroom and was scrolling on her phone, sitting on the toilet cap, one leg over the other. It didn't matter even if she could see through the shower's glass doors because it was her body (which she couldn't thanks to Gaster's thoughtful gesture of getting glass with that foggy effect). Sans gagged.
"this is disgusting...blood just randomly comes out of you like this...??" Frisk snorted.
"It's not random...But I'm not going to explain menstruations to you." Sans sighed.
"it really hurts..." Frisk sighed as well.
"It will be better with a pain-killer don't worry. You done?" He shrugged and Frisk tossed him a towel. Again...didn't care. It was her body. Plus, she knew that Sans was just making up the whole story that he has never seen her naked....She can hear the door creaking. He's bad at sneaking up on her. She thought him how to put a pad on.
"bruh...it's a blood absorbing panty sticker. the fuck?" Frisk face-palmed.
"You're a stupidity absorbing sticker. Come on." Frisk raised a brow as she looked at her hand and smirked. She knew how to use blue magic thanks to Papyrus and her fast learning. She easily picked her body up and started walking.
"HOW IN THE WORLD?! PUT ME DOWN! FRISKKKK!" She laughed.
"Now you know how it feels."
Frisk and Sans were downstairs and they couldn't believe what they were hearing. Louis and Luka were making out and having a competition. They were just teasing each other that is true but...
"WHY THE FUCK ARE THEY SO LOUD?! LOUIS! LUKA! IF YOU DON'T SHUT UP I'M COMING IN THERE AFTER YOU TWO FUCKERS!!" Suddenly the doors flew open and Asriel and Chara walked in.
"GET US IN OUR BODIESSSS! PLEASE! I CAN'T TAKE THIS ANYMORE! SHE'S BEEN TICKLING ME FOR THE PAST 15 MINUTES!" Asriel said as he was still floating. Chara frowned.
"HE'S BEEN EATING MY CHOCOLATE ALL DAY!!" Chara screamed. Gaster then walked in with Papyrus.
"IT'S HAPPENING! WE'RE GOING BACK TO OUR BODIES IN 3....2....1!!" For a second they saw black and then Frisk cheered.
"I'M BACK IN MY BODY! OH THANK GOD! Ow- Cramps!" She said as the adrenaline left her. Sans chuckled and snuggled into her. Chara touched herself and cheered as well.
"I'M BACK!" Asriel fell on his knees on the carpet and kissed the ground.
"FINALLY! MY FEET ARE TOUCHING THE GROUND!" They all went silent then they all cheered.
"THESE TWO STOPPED BEING SO LOUD! THANK GOD!" Gaster said as he straightened his back and picked Papyrus up. Papyrus scoffed.
"I AM NOT TALL ANYMORE....BULLSHIT." Everyone froze and Gaster looked at Sans and Frisk. Frisk pointed at Sans and he pointed at Frisk. They both looked at each other with narrowed eyes. Asriel and Chara smirked and pointed at Sans. Sans sockets went blank as he was out-numbered. Gaster summoned a blaster.
"R U N." Gaster said as he put Papyrus down. Papyrus laughed.
"JOKES ON HIM. I LEARNED THE WORD FROM FATHER!" Frisk spurted and the three teens in the living-room started laughing as Sans was begging for his life, running and teleporting with an angry Gaster after him. Thank god they were back in their bodies.