Jun 8, 2025
AU NEXUS 1-4 pt 1
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AU NEXUS 1-4 pt 1
Entry number 11
I’m watching 0-G while Papyrus is on a supply run.
0-G navigates in a very interesting way: the kid’ll rattle his bones before he makes any attempt to move forward. I think he’s using some kind of echolocation...rattlelocation, if you will.
He also seems to know where I am at all times...when he needs something, he goes directly to me (or Pap when he’s here). I’m not sure how he’s doing that...I could be silent and he still finds me. He can’t see souls, not with the layer of bone covering his eye sockets.
How is he doing this?
“PAPY YOU LIAR!” Sans said, pouting angrily at Papyrus.
Papyrus in turn, looked at him in deadpan shock. “what?” He asked, lifting a brow questionigly, the action making his glasses reflect light. “what did i do, sans?”
“I didn’t know that you have a very cute little bro, Papyrus.” Undyne giggled, clasping her hands together and smiling at Sans.
Sans harrumphed, turning huffily away from Undyne to glare at Papyrus. “YOU CALLED HER COOL JUST NOW DIDN’T YOU!” He whined, pointing a gloved finger at Undyne.
Papyrus blinked, staring at Undyne then looking at Sans. “…yeah?”
Sans whimpered, face scrunching up in a familiar way.
Papyrus flinched, raising his hands nervously. “h-hey bro. don’t cry!”
“…um…” Undyne scratched her cheek awkwardly.
Sans sniffed, raising his hands to wipe at the tears starting to fall down his cheeks. “YOU SAID THAT I’M THE COOLEST MONSTER.” He sniffed again. “AND THEN YOU JUST CALLED HER COOL TOO!”
Papyrus froze while Undyne started to inch away from the brothers. She thought that this is something that should be solved in private-
Papyrus let out a choked laugh, clasping a hand on his jaw to stop the laugh from coming out. His cheeks blushing orange.
Sans’ face dropped in dismay, sad that his brother is laughing at him.
“nyehe…heheh!”
“MWEH!” Sans squeaked as suddenly arms wrapped around his waist and lifted in the air. “P-PAPY?!” Sans said indignantly as he found himself in a hug.
“you’re so cute bro.” Papyrus drawled, rubbing his cheek to Sans’ skull. “…cute and precious and adorable and…”
“Ehem.” Undyne coughed quietly, catching the attention of Papyrus. “He’s still mad.” She whispered.
“LET ME GO! I DON’T WANT TO BE HUGGED BY A LIAR!” Sans shouted, hitting Papyrus chest.
“sans. listen to me.” Papyrus said, placing a hand on Sans head. “i did call undyne cool but for me you’re still the coolest monster in the whole underground.”
Sans wiggled, staying silent. Papyrus smiled wryly, bending down to place a kiss on Sans’ forehead. “i’m not lying bro. ”
Sans looked down. “PROMISE?” he mumbled.
Papyrus grinned. “promise.”
SansxAlphys or Swap PapyrusxUndyne, maybe? Their dynamic as lab partners could be interesting!
Underswap Papdyne
I’m normally not really into Alphys or Undyne shipped with anyone else (except pre-game as at least one of them ought to have had a partner before). But let’s do this anyway. It was still fun. I’ll do Stretch X Swap Undyne.
Papyrus grinned as he took up his ID-card,scanning it to get access to the True Lab. He went down the elevator, happy he fixedit just the day before so it went quietly. Well down, he sneaked through therooms until he came to the laboratory. Undyne was there, watching infascination as the chemicals reacted to one another.
He stepped into the Void, shortcutting tostraight behind her. Papyrus wrapped his arms around her waist without making asound. She jumped in surprise.
“hello, beautiful,” he whispered into her earfin,and she blushed slightly.
“P-Papyrus!” She broke free – Undyne wassurprisingly strong for someone who got so little physical exercise – andswatted his arm. “I-I’ve told you n-not to sneak up on m-me in the L-Lab. Or ata-all.”
“aw, c’mon,” He turned to the table, watchingthe equipment in curiosity. Pulling out his lab coat from his inventory, hepressed a kiss to her cheek. “what’re we doing today, boss?”
As Undyne explained, he watched her. It wasintriguing how she completely forgot to stutter when she got excited like this.In difference to Alphys’ chronic stuttering, Undyne’s was pure nervousness and habit and thereforenot always there.
“well then,” he nodded when she hadfinished. He put on his glasses – he had learnt the lesson to use them the hardway. Just because he didn’t have eyes that could get damaged didn’t mean itwouldn’t hurt like hell if he got any chemicals in his sockets – and smiled.“let’s get started.”
She gave Papyrus a grin, and bowed down. Undynewas roughly a head taller than him. Pressing a kiss to his teeth she nodded,something almost wild in her eyes.
He loved the fire in her eyes when she gotexcited about science or anime or something else.
It was fierce and passionate, and it was sheerbeauty.
He didn’t tell her this, though. Papyrus justkissed back before they started their work.
AU NEXUS 1-4 pt 3
AU Nexus 1-3
AU NEXUS 1-4 pt 2
Nexus - Extra - Personal Growth Pt. 2
Part two of tiny origin story as to why Red and Doc/Joker are huge.
(Insert Clifford/Grinch joke.)
> PREV
> INDEX
Nx Personal Growth Pt. 2 ft:
Scientist!Paps (creator unknown)
Fell!Papyrus (by underfell)
*note: a lot of pre-existing AU characters appearing in this comic are altered from their original versions. Credits will still be assigned to the creators of the AUs those altered versions stem from. If characters appear to stem from an uncredited AU, I probably wasn’t intentionally referencing it (feel free to point out the similarity tho). (And chime in if you know a creator I couldn’t find.)